Commit Graph

601 Commits

Author SHA1 Message Date
Olof Johansson
0d241c3f95 bus: tegra: Changes for v5.6-rc1
Contains a single fix to remove a Kconfig dependency that's no longer
 required.
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Merge tag 'tegra-for-5.6-bus' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/drivers

bus: tegra: Changes for v5.6-rc1

Contains a single fix to remove a Kconfig dependency that's no longer
required.

* tag 'tegra-for-5.6-bus' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
  bus: tegra-aconnect: Remove PM_CLK dependency

Link: https://lore.kernel.org/r/20200111003553.2411874-2-thierry.reding@gmail.com
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-01-16 10:40:22 -08:00
Ioana Ciornei
cff081ea9d bus: fsl-mc: properly empty-initialize structure
Use the proper form of the empty initializer when working with
structures that contain an array. Otherwise, older gcc versions (eg gcc
4.9) will complain about this.

Fixes: 1ac210d128 ("bus: fsl-mc: add the fsl_mc_get_endpoint function")
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Acked-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Link: https://lore.kernel.org/r/20191204142950.30206-1-ioana.ciornei@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-14 15:06:06 +01:00
Sameer Pujar
2f56acf818 bus: tegra-aconnect: Remove PM_CLK dependency
The ACONNECT bus driver does not use pm-clk interface anymore and hence
the dependency can be removed from its Kconfig option.

Fixes: 0d7dab9261 ("bus: tegra-aconnect: use devm_clk_*() helpers")
Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-01-10 12:31:24 +01:00
Marek Behún
54dd5fcb7c bus: moxtet: declare moxtet_bus_type as static
This symbol is not meant to be used from elsewhere.

Cc: Ben Dooks <ben.dooks@codethink.co.uk>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
2020-01-08 10:35:29 +01:00
Christoph Hellwig
4bdc0d676a remove ioremap_nocache and devm_ioremap_nocache
ioremap has provided non-cached semantics by default since the Linux 2.6
days, so remove the additional ioremap_nocache interface.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
2020-01-06 09:45:59 +01:00
Tony Lindgren
2c81f0f6d3 bus: ti-sysc: Fix iterating over clocks
Commit d878970f6c ("bus: ti-sysc: Add separate functions for handling
clocks") separated handling of optional clocks from the main clocks, but
introduced an issue where we do not necessarily allocate a slot for both
fck and ick clocks, but still assume fixed slots for enumerating over the
clocks.

Let's fix the issue by ensuring we always have slots for both fck and ick
even if we don't use ick, and don't attempt to enumerate optional clocks
if not allocated.

In the long run we might want to simplify things a bit by only allocating
space only for the optional clocks as we have only few devices with
optional clocks.

Fixes: d878970f6c ("bus: ti-sysc: Add separate functions for handling clocks")
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-12-16 14:55:22 -08:00
zhengbin
3f2c420596 bus: ti-sysc: Use PTR_ERR_OR_ZERO() to simplify code
Fixes coccicheck warning:

drivers/bus/ti-sysc.c:506:1-3: WARNING: PTR_ERR_OR_ZERO can be used

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: zhengbin <zhengbin13@huawei.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-12-12 09:06:40 -08:00
Suman Anna
426d4447f9 bus: ti-sysc: Drop MMU quirks
The OMAP IOMMU driver no longer uses the pm_runtime_irq_safe() API
after commit 1432ebbd60 ("iommu/omap: remove pm_runtime_irq_safe
flag for OMAP IOMMUs"), so the SYSC_QUIRK_LEGACY_IDLE quirk is no
longer needed for MMU devices. Drop the same.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-12-12 08:59:02 -08:00
Tony Lindgren
94f6345712 bus: ti-sysc: Implement quirk handling for CLKDM_NOAUTO
For dra7 dcan and dwc3 instances we need to block clockdomain autoidle.
Let's do this with CLKDM_NOAUTO quirk flag and enable it for dcan and
dwc3.

Cc: Keerthy <j-keerthy@ti.com>
Cc: Roger Quadros <rogerq@ti.com>
Cc: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-12-12 08:57:58 -08:00
Tony Lindgren
e709ed70d1 bus: ti-sysc: Fix missing reset delay handling
We have dts property for "ti,sysc-delay-us", and we're using it, but the
wait after OCP softreset only happens if devices are probed in legacy mode.

Let's add a delay after writing the OCP softreset when specified.

Fixes: e0db94fe87 ("bus: ti-sysc: Make OCP reset work for sysstatus and sysconfig reset bits")
Cc: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-12-12 08:20:10 -08:00
Tony Lindgren
93c60483b5 bus: ti-sysc: Fix missing force mstandby quirk handling
Commit 03856e928b ("bus: ti-sysc: Handle mstandby quirk and use it for
musb") added quirk handling for mstandby quirk but did not consider that
we also need a quirk variant for SYSC_QUIRK_FORCE_MSTANDBY.

We need to use forced idle mode for both SYSC_QUIRK_SWSUP_MSTANDBY and
SYSC_QUIRK_FORCE_MSTANDBY, but SYSC_QUIRK_SWSUP_MSTANDBY also need to
additionally also configure no-idle mode when enabled.

Fixes: 03856e928b ("bus: ti-sysc: Handle mstandby quirk and use it for musb")
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-12-10 07:18:21 -08:00
Olof Johansson
0f679edf5a Few ti-sysc related fixes for v5.5 merge window
Just few minor changes that can be merged when suitable, but would
 be good to have these in v5.5-rc1 to remove dependencies between branches
 for more changes later on in v5.6:
 
 - Add quirk handling for AESS (Audio Engine Sub System)
 
 - We want to drop the useless gptimer option for omap4 as there are local
   timers
 
 - A minor error path handling improvment for sysc_child_add_named_clock()
   that will make further patching a bit easier
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Merge tag 'omap-for-v5.5/ti-sysc-late-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/fixes

Few ti-sysc related fixes for v5.5 merge window

Just few minor changes that can be merged when suitable, but would
be good to have these in v5.5-rc1 to remove dependencies between branches
for more changes later on in v5.6:

- Add quirk handling for AESS (Audio Engine Sub System)

- We want to drop the useless gptimer option for omap4 as there are local
  timers

- A minor error path handling improvment for sysc_child_add_named_clock()
  that will make further patching a bit easier

* tag 'omap-for-v5.5/ti-sysc-late-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  bus: ti-sysc: Adjust exception handling in sysc_child_add_named_clock()
  ARM: OMAP2+: Drop useless gptimer option for omap4
  bus: ti-sysc: Add module enable quirk for audio AESS

Link: https://lore.kernel.org/r/pull-1574273726-31367@atomide.com
Signed-off-by: Olof Johansson <olof@lixom.net>
2019-12-06 08:26:50 -08:00
Linus Torvalds
ec939e4c94 ARM: SoC-related driver updates
Various driver updates for platforms:
 
  - A larger set of work on Tegra 2/3 around memory controller and
  regulator features, some fuse cleanups, etc..
 
  - MMP platform drivers, in particular for USB PHY, and other smaller
  additions.
 
  - Samsung Exynos 5422 driver for DMC (dynamic memory configuration),
  and ASV (adaptive voltage), allowing the platform to run at more
  optimal operating points.
 
  - Misc refactorings and support for RZ/G2N and R8A774B1 from Renesas
 
  - Clock/reset control driver for TI/OMAP
 
  - Meson-A1 reset controller support
 
  - Qualcomm sdm845 and sda845 SoC IDs for socinfo
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC driver updates from Olof Johansson:
 "Various driver updates for platforms:

   - A larger set of work on Tegra 2/3 around memory controller and
     regulator features, some fuse cleanups, etc..

   - MMP platform drivers, in particular for USB PHY, and other smaller
     additions.

   - Samsung Exynos 5422 driver for DMC (dynamic memory configuration),
     and ASV (adaptive voltage), allowing the platform to run at more
     optimal operating points.

   - Misc refactorings and support for RZ/G2N and R8A774B1 from Renesas

   - Clock/reset control driver for TI/OMAP

   - Meson-A1 reset controller support

   - Qualcomm sdm845 and sda845 SoC IDs for socinfo"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (150 commits)
  firmware: arm_scmi: Fix doorbell ring logic for !CONFIG_64BIT
  soc: fsl: add RCPM driver
  dt-bindings: fsl: rcpm: Add 'little-endian' and update Chassis definition
  memory: tegra: Consolidate registers definition into common header
  memory: tegra: Ensure timing control debug features are disabled
  memory: tegra: Introduce Tegra30 EMC driver
  memory: tegra: Do not handle error from wait_for_completion_timeout()
  memory: tegra: Increase handshake timeout on Tegra20
  memory: tegra: Print a brief info message about EMC timings
  memory: tegra: Pre-configure debug register on Tegra20
  memory: tegra: Include io.h instead of iopoll.h
  memory: tegra: Adapt for Tegra20 clock driver changes
  memory: tegra: Don't set EMC rate to maximum on probe for Tegra20
  memory: tegra: Add gr2d and gr3d to DRM IOMMU group
  memory: tegra: Set DMA mask based on supported address bits
  soc: at91: Add Atmel SFR SN (Serial Number) support
  memory: atmel-ebi: switch to SPDX license identifiers
  memory: atmel-ebi: move NUM_CS definition inside EBI driver
  soc: mediatek: Refactor bus protection control
  soc: mediatek: Refactor sram control
  ...
2019-12-05 11:43:31 -08:00
Linus Torvalds
0dd09bc02c Staging / IIO patches for 5.5-rc1
Here is the big staging and iio set of patches for the 5.5-rc1 release.
 
 It's the usual huge collection of cleanup patches all over the
 drivers/staging/ area, along with a new staging driver, and a bunch of
 new IIO drivers as well.
 
 Full details are in the shortlog, but all of these have been in
 linux-next for a long time with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging / iio updates from Greg KH:
 "Here is the big staging and iio set of patches for the 5.5-rc1
  release.

  It's the usual huge collection of cleanup patches all over the
  drivers/staging/ area, along with a new staging driver, and a bunch of
  new IIO drivers as well.

  Full details are in the shortlog, but all of these have been in
  linux-next for a long time with no reported issues"

* tag 'staging-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (548 commits)
  staging: vchiq: Have vchiq_dump_* functions return an error code
  staging: vchiq: Refactor indentation in vchiq_dump_* functions
  staging: fwserial: Fix Kconfig indentation (seven spaces)
  staging: vchiq_dump: Replace min with min_t
  staging: vchiq: Fix block comment format in vchiq_dump()
  staging: octeon: indent with tabs instead of spaces
  staging: comedi: usbduxfast: usbduxfast_ai_cmdtest rounding error
  staging: most: core: remove sysfs attr remove_link
  staging: vc04: Fix Kconfig indentation
  staging: pi433: Fix Kconfig indentation
  staging: nvec: Fix Kconfig indentation
  staging: most: Fix Kconfig indentation
  staging: fwserial: Fix Kconfig indentation
  staging: fbtft: Fix Kconfig indentation
  fbtft: Drop OF dependency
  fbtft: Make use of device property API
  fbtft: Drop useless #ifdef CONFIG_OF and dead code
  fbtft: Describe function parameters in kernel-doc
  fbtft: Make sure string is NULL terminated
  staging: rtl8723bs: remove set but not used variable 'change', 'pos'
  ...
2019-11-27 10:57:52 -08:00
Markus Elfring
cb6cfe2eae bus: ti-sysc: Adjust exception handling in sysc_child_add_named_clock()
Add a jump target so that a call of the function “clk_put”
can be better reused at the end of this function.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-11-14 09:07:03 -08:00
Tony Lindgren
020003f763 bus: ti-sysc: Add module enable quirk for audio AESS
We must set the autogating bit on enable for AESS (Audio Engine SubSystem)
when probed with ti-sysc interconnect target module driver. Otherwise it
won't idle properly.

Cc: Peter Ujfalusi <peter.ujfalusi@ti.com>
Tested-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-11-14 08:25:28 -08:00
Olof Johansson
13c1eff175 ARM64: hisi: SoC driver updates for 5.5
- check the LOGIC_PIO_INDIRECT region ops at registration instead of
   in the IO port accessors to optimise the lib/ligic_pio.c
 
 - add the hisi LPC driver to the build test for the other architectures
   except ALPHA, C6X, HEXAGON and PARISC as they do not define {read,write}sb
   by updating the hisi LPC Kconfig and adding a dummy PIO_INDIRECT_SIZE
 
 - clean the sparse complains of the hisi LPC driver
 
 - build logic_pio into a lib to avoid including in the vmlinux when not
   referenced
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Merge tag 'hisi-drivers-for-5.5' of git://github.com/hisilicon/linux-hisi into arm/drivers

ARM64: hisi: SoC driver updates for 5.5

- check the LOGIC_PIO_INDIRECT region ops at registration instead of
  in the IO port accessors to optimise the lib/ligic_pio.c

- add the hisi LPC driver to the build test for the other architectures
  except ALPHA, C6X, HEXAGON and PARISC as they do not define {read,write}sb
  by updating the hisi LPC Kconfig and adding a dummy PIO_INDIRECT_SIZE

- clean the sparse complains of the hisi LPC driver

- build logic_pio into a lib to avoid including in the vmlinux when not
  referenced

* tag 'hisi-drivers-for-5.5' of git://github.com/hisilicon/linux-hisi:
  logic_pio: Build into a library
  bus: hisi_lpc: Expand build test coverage
  bus: hisi_lpc: Clean some types
  logic_pio: Define PIO_INDIRECT_SIZE for !CONFIG_INDIRECT_PIO
  lib: logic_pio: Enforce LOGIC_PIO_INDIRECT region ops are set at registration

Link: https://lore.kernel.org/r/5DC959B9.80301@hisilicon.com
Signed-off-by: Olof Johansson <olof@lixom.net>
2019-11-11 13:09:36 -08:00
John Garry
3e5cd20d4e bus: hisi_lpc: Expand build test coverage
Currently the driver will only ever be built for ARM64 because it selects
CONFIG_INDIRECT_PIO, which itself depends on ARM64.

Expand build test coverage for the driver to other architectures by only
selecting CONFIG_INDIRECT_PIO for ARM64, when we really want it.

We don't include ALPHA, C6X, HEXAGON, and PARISC architectures as they
don't define {read, write}sb.

Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
2019-11-05 08:47:48 +08:00
John Garry
663accf187 bus: hisi_lpc: Clean some types
Sparse complains of these:
drivers/bus/hisi_lpc.c:82:38: warning: incorrect type in argument 1 (different address spaces)
drivers/bus/hisi_lpc.c:82:38:    expected void const volatile [noderef] <asn:2>*addr
drivers/bus/hisi_lpc.c:82:38:    got unsigned char *
drivers/bus/hisi_lpc.c:131:35: warning: incorrect type in argument 1 (different address spaces)
drivers/bus/hisi_lpc.c:131:35:    expected unsigned char *mbase
drivers/bus/hisi_lpc.c:131:35:    got void [noderef] <asn:2>*membase
drivers/bus/hisi_lpc.c:186:35: warning: incorrect type in argument 1 (different address spaces)
drivers/bus/hisi_lpc.c:186:35:    expected unsigned char *mbase
drivers/bus/hisi_lpc.c:186:35:    got void [noderef] <asn:2>*membase
drivers/bus/hisi_lpc.c:228:16: warning: cast to restricted __le32
drivers/bus/hisi_lpc.c:251:13: warning: incorrect type in assignment (different base types)
drivers/bus/hisi_lpc.c:251:13:    expected unsigned int [unsigned] [usertype] val
drivers/bus/hisi_lpc.c:251:13:    got restricted __le32 [usertype] <noident>

Clean them up.

Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
2019-11-05 08:47:21 +08:00
David S. Miller
d31e95585c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
The only slightly tricky merge conflict was the netdevsim because the
mutex locking fix overlapped a lot of driver reload reorganization.

The rest were (relatively) trivial in nature.

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-02 13:54:56 -07:00
Greg Kroah-Hartman
ebc8f4f603 Second set of IIO + counter new device support, features etc for the 5.5 cycle.
Note two merge commits in here, both for immutable branches based
 of 5.4-rc1.
 1. Ti eqep driver because of some file moves in precursor patches.
    I suspect no one else will pull this one.
 2. ab8500 refactor as changes in power supply, hwmon and mfd trees.
    This may come via numerous trees as well as IIO.
 
 Counter subsystem related
 * ti eqep
   - New device support with bindings.
   - Includes prior file move to reflect more general use of ti-pwmss.
 * Counter core
   - simplify count_read and count_write callbacks + document change.
   - fix a typo in docs.
 
 Various subsystems related
 * AB8500
   - ab8500_btemp driver converted to be an IIO consumer driver.
   - ab8500_charger driver converted to be an IIO consumer driver.
   - ab8500_fg fuel gauge driver converted to be an IIO consumer driver.
   - ab8500 hwmon driver converted to be an IIO consumer driver.
   - mfd bindings augmented with the adc channels to make the above work.
   - drop original mfd driver.
 
 New device support
 * ab8500
   - new ADC driver used by the above other subystems via the IIO consumer
     interface.
 * adux1020 photometric sensor
   - new driver and dt bindings.
 * fxos877cq
   - new driver for this simple(ish) IMU with DT bindings.
 * intel_mrfld_adc
   -  new driver for the ADC found on Intel Merrifield platforms.
 * ltc2983
   - new driver for this multi-sensor type temperature interface.
     Includes complex DT bindings.
 * max1027
   - support for 12 bit devices, max1227, max1229 and max1231 + add to trivial
     bindings.
 * st_lsm6dsx
   - support for the LSM6DS0 6 axis MEMs sensor.
     Note different from the LSM6DSO which the driver already supports *sigh*
   - support for the LSM6DSRX 6 axis MEMs sensor.
 
 Features and cleanups
 * ad7303
   - replace use of core mlock with a local lock with cleanly defined scope.
 * ad9834
   - add a check for devm_clk_get failing.
 * at91-sama5d2
   - tidy up a 0 as NULL warning.
 * bmp280
   - endian type tidy ups.
   - use bulk regulator ops for a small reduction in code.
   - use devm_add_action... to simplify error path handling.
 * exynos
   - drop stray semicolon.
   - use devm_platform_ioremap_resource to reduce boilerplate.
 * hx711
   - various tricks to improve the frequency of read out possible.
 * max1027
   - debugfs support.
   - make interrupts optional.
   - reset at probe to get clean state.
   - refactors to allow addition of new device support.
 * maxim thermocouple
   - drop an unneeded semicolon.
 * mb1232
   - yaml binding conversion.
 * mcp320x
   - tidy up an endian types in cast warning.
 * meson_saradc
   - use devm_platform_ioremap_resource to reduce boilerplate.
 * mpu3050
   - make a poison value explicity big endian to supress a warning.
 * pulsedlight v2
   - endian type tidy ups.
 * sgp30
   - drop an excess semicolon.
 * sps30
   - make truncation explicit with masking to clean up a warning.
 * st sensors
   - drop gpio include as none of these support gpios.
 * st_lsm6dsx
   - tidy up some alignment issues.
   - refactors to allow addition of new device support.
     * allow varients of irq related reg definitions.
     * avoid accessing active-low, open-drain regs if not provided.
     * allow varients of bdu/boot and reset regs.
     * allow for enabling or disabling wakeup sources through platform
       data (seems someone still uses this).
   - enable wake-up events for LSM6DS0
   - use the drdy mask to avoid some invalid samples during initial start
     of sensor.
   - Add support to trim the timestamp.
 * stm32_adc
   - kernel-doc fixes.
 * stm32_dac
   - power management support.
 * stmpe-adc
   - Fix endian type of local variable.
 * twl4030
   - use false / true instead of 0 / 1 for booleans.
 * xilinx-xadc
   - use devm_platform_ioremap_resouce to reduce boilerplate.
 * zpa2326
   - reorganise buffer handling setup to be more consistent.
 
 Fixes (mostly recent additions)
 * cpcap-adc
   - Fix mising IRQF_ONESHOT that would cause warnings to be printed.
 * st_lsm6dsx
   - Sanity check the read_fifo pointer is set.
   - use locked read and update functions to prevent some races.
   - avoid accessing enable_reg if not provided.
   - take a lock to prevent a race in updating the config.
   - kernel-doc fixes.
   - document wakeup-source property in dt binding.
   - fix lsm9ds1 gyro gain definitions.
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Merge tag 'iio-for-5.5b' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Second set of IIO + counter new device support, features etc for the 5.5 cycle.

Note two merge commits in here, both for immutable branches based
of 5.4-rc1.
1. Ti eqep driver because of some file moves in precursor patches.
   I suspect no one else will pull this one.
2. ab8500 refactor as changes in power supply, hwmon and mfd trees.
   This may come via numerous trees as well as IIO.

Counter subsystem related
* ti eqep
  - New device support with bindings.
  - Includes prior file move to reflect more general use of ti-pwmss.
* Counter core
  - simplify count_read and count_write callbacks + document change.
  - fix a typo in docs.

Various subsystems related
* AB8500
  - ab8500_btemp driver converted to be an IIO consumer driver.
  - ab8500_charger driver converted to be an IIO consumer driver.
  - ab8500_fg fuel gauge driver converted to be an IIO consumer driver.
  - ab8500 hwmon driver converted to be an IIO consumer driver.
  - mfd bindings augmented with the adc channels to make the above work.
  - drop original mfd driver.

New device support
* ab8500
  - new ADC driver used by the above other subystems via the IIO consumer
    interface.
* adux1020 photometric sensor
  - new driver and dt bindings.
* fxos877cq
  - new driver for this simple(ish) IMU with DT bindings.
* intel_mrfld_adc
  -  new driver for the ADC found on Intel Merrifield platforms.
* ltc2983
  - new driver for this multi-sensor type temperature interface.
    Includes complex DT bindings.
* max1027
  - support for 12 bit devices, max1227, max1229 and max1231 + add to trivial
    bindings.
* st_lsm6dsx
  - support for the LSM6DS0 6 axis MEMs sensor.
    Note different from the LSM6DSO which the driver already supports *sigh*
  - support for the LSM6DSRX 6 axis MEMs sensor.

Features and cleanups
* ad7303
  - replace use of core mlock with a local lock with cleanly defined scope.
* ad9834
  - add a check for devm_clk_get failing.
* at91-sama5d2
  - tidy up a 0 as NULL warning.
* bmp280
  - endian type tidy ups.
  - use bulk regulator ops for a small reduction in code.
  - use devm_add_action... to simplify error path handling.
* exynos
  - drop stray semicolon.
  - use devm_platform_ioremap_resource to reduce boilerplate.
* hx711
  - various tricks to improve the frequency of read out possible.
* max1027
  - debugfs support.
  - make interrupts optional.
  - reset at probe to get clean state.
  - refactors to allow addition of new device support.
* maxim thermocouple
  - drop an unneeded semicolon.
* mb1232
  - yaml binding conversion.
* mcp320x
  - tidy up an endian types in cast warning.
* meson_saradc
  - use devm_platform_ioremap_resource to reduce boilerplate.
* mpu3050
  - make a poison value explicity big endian to supress a warning.
* pulsedlight v2
  - endian type tidy ups.
* sgp30
  - drop an excess semicolon.
* sps30
  - make truncation explicit with masking to clean up a warning.
* st sensors
  - drop gpio include as none of these support gpios.
* st_lsm6dsx
  - tidy up some alignment issues.
  - refactors to allow addition of new device support.
    * allow varients of irq related reg definitions.
    * avoid accessing active-low, open-drain regs if not provided.
    * allow varients of bdu/boot and reset regs.
    * allow for enabling or disabling wakeup sources through platform
      data (seems someone still uses this).
  - enable wake-up events for LSM6DS0
  - use the drdy mask to avoid some invalid samples during initial start
    of sensor.
  - Add support to trim the timestamp.
* stm32_adc
  - kernel-doc fixes.
* stm32_dac
  - power management support.
* stmpe-adc
  - Fix endian type of local variable.
* twl4030
  - use false / true instead of 0 / 1 for booleans.
* xilinx-xadc
  - use devm_platform_ioremap_resouce to reduce boilerplate.
* zpa2326
  - reorganise buffer handling setup to be more consistent.

Fixes (mostly recent additions)
* cpcap-adc
  - Fix mising IRQF_ONESHOT that would cause warnings to be printed.
* st_lsm6dsx
  - Sanity check the read_fifo pointer is set.
  - use locked read and update functions to prevent some races.
  - avoid accessing enable_reg if not provided.
  - take a lock to prevent a race in updating the config.
  - kernel-doc fixes.
  - document wakeup-source property in dt binding.
  - fix lsm9ds1 gyro gain definitions.

* tag 'iio-for-5.5b' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (73 commits)
  dt-bindings: iio: imu: st_lsm6dsx: add lsm6dsrx device bindings
  iio: imu: st_lsm6dsx: add support to LSM6DSRX
  iio: st: Drop GPIO include
  iio: adc: hx711: optimize performance in read cycle
  iio: adc: stm32-adc: fix kernel-doc warnings
  iio: pressure: zpa2326: fix iio_triggered_buffer_postenable position
  iio: chemical: sgp30: drop excess semicolon
  iio: adc: twl4030: Use false / true instead of 0 / 1 with booleans
  dt-bindings: iio: Add ltc2983 documentation
  iio: temperature: Add support for LTC2983
  iio: pressure: bmp280: use devm action and remove labels from probe
  iio: pressure: bmp280: use bulk regulator ops
  iio: imu: Add support for the FXOS8700 IMU
  dt-bindings: iio: imu: add fxos8700 imu binding
  staging: iio: ad9834: add a check for devm_clk_get
  iio: adc: xilinx-xadc: use devm_platform_ioremap_resource
  iio: temp: maxim thermocouple: Drop unneeded semi colon.
  iio: adc: cpcap-adc: Fix missing IRQF_ONESHOT as only threaded handler.
  iio: adc: meson_saradc: use devm_platform_ioremap_resource
  iio: adc: exynos: use devm_platform_ioremap_resource
  ...
2019-11-01 10:06:10 +01:00
Ioana Ciornei
1ac210d128 bus: fsl-mc: add the fsl_mc_get_endpoint function
Using the newly added fsl_mc_get_endpoint function a fsl-mc driver can
find its associated endpoint (another object at the other link of a MC
firmware link).

The API will be used in the following patch in order to discover the
connected DPMAC object of a DPNI.

Also, the fsl_mc_device_lookup function is made available to the entire
fsl-mc bus driver and not just for the dprc driver.

Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-31 14:19:45 -07:00
Ioana Ciornei
6fff8c0107 bus: fsl-mc: export device types present on the bus
Export all device types present on the fsl-mc bus in order to be able to
actually use the is_fsl_mc_bus_*() functions from drivers on the bus.

Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-31 14:19:45 -07:00
Tony Lindgren
1819ef2e2d bus: ti-sysc: Use swsup quirks also for am335x musb
Also on am335x we need the swsup quirks for musb.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-10-21 14:15:55 -07:00
Tony Lindgren
03856e928b bus: ti-sysc: Handle mstandby quirk and use it for musb
We need swsup quirks for sidle and mstandby for musb to work
properly.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-10-21 13:36:09 -07:00
Tony Lindgren
96b4597f0e Merge branch 'watchdog-fix' into omap-for-v5.5/ti-sysc 2019-10-18 08:53:28 -07:00
Tony Lindgren
c7d8669f46 bus: ti-sysc: Fix watchdog quirk handling
I noticed that when probed with ti-sysc, watchdog can trigger on am3, am4
and dra7 causing a device reset.

Turns out I made several mistakes implementing the watchdog quirk handling:

1. We must do both writes to spr register

2. We must also call the reset quirk on disable

3. On am3 and am4 we need to also set swsup quirk flag

I probably only tested this earlier with watchdog service running when the
watchdog never gets disabled.

Fixes: 4e23be473e ("bus: ti-sysc: Add support for module specific reset quirks")
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-10-18 08:45:32 -07:00
David Lechner
f213729f67 counter: new TI eQEP driver
This adds a new counter driver for the Texas Instruments Enhanced
Quadrature Encoder Pulse (eQEP) module.

Only very basic functionality is currently implemented - only enough to
be able to read the position. The actual device has many more features
which can be added to the driver on an as-needed basis.

It is not possible to read the QEPA/B signal values in hardware, so
that feature is omitted.

The TI_PWMSS kernel option is selected in Kconfig to enable the parent
bus, which is needed for power management.

Signed-off-by: David Lechner <david@lechnology.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-10-17 21:53:49 +01:00
David Lechner
7cabf9251a bus/ti-pwmss: move TI PWMSS driver from PWM to bus subsystem
The TI PWMSS driver is a simple bus driver for providing power
power management for the PWM peripherals on TI AM33xx SoCs, namely
eCAP, eHRPWM and eQEP. The eQEP is a counter rather than a PWM, so
it does not make sense to have the bus driver in the PWM subsystem
since the PWMSS is not exclusive to PWM devices.

Signed-off-by: David Lechner <david@lechnology.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-10-17 21:17:42 +01:00
Tero Kristo
cdc56c1129 bus: ti-sysc: avoid toggling power state of module during probe
Current implementation for ti-sysc powers down the module once module
init is complete. However, right after power is disabled, it is enabled
via runtime PM. This is unnecessary so avoid it by re-ordering the
events a bit; move powering down of the module post runtime PM enable
which makes sure the use counts are maintained properly and there is
no extra power down/up sequence for the module.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-10-08 07:08:59 -07:00
Tero Kristo
df4f3459c7 bus: ti-sysc: drop the extra hardreset during init
There seems to be unnecessary extra hardreset line toggling applied
during module init. This is unnecessary, as the reset lines are already
asserted during boot, and it can cause certain modules to hang (iommus,
remoteprocs.) Remove the extra hardreset toggle, and remove the now
redundant function to handle this also.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-10-08 07:08:52 -07:00
Tero Kristo
bf59ebbeac bus: ti-sysc: re-order reset and main clock controls
The main clocks and reset controls have a hardware level dependency,
where one can't transition state without the other one transitioning.
Because we don't have the dependency implemented in software, we must
ensure the ordering of these two is done properly; they way this is
handled is that clocks transition on software level without delay,
and the status is only polled on reset side. Because of this, we must
re-order the main clock and reset handling on the ti-sysc driver.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-10-08 07:08:46 -07:00
Linus Torvalds
cef0aa0ce8 ARM: SoC fixes
A few fixes that have trickled in through the merge window:
 
  - Video fixes for OMAP due to panel-dpi driver removal
  - Clock fixes for OMAP that broke no-idle quirks + nfsroot on DRA7
  - Fixing arch version on ASpeed ast2500
  - Two fixes for reset handling on ARM SCMI
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Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC fixes from Olof Johansson:
 "A few fixes that have trickled in through the merge window:

   - Video fixes for OMAP due to panel-dpi driver removal

   - Clock fixes for OMAP that broke no-idle quirks + nfsroot on DRA7

   - Fixing arch version on ASpeed ast2500

   - Two fixes for reset handling on ARM SCMI"

* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
  ARM: aspeed: ast2500 is ARMv6K
  reset: reset-scmi: add missing handle initialisation
  firmware: arm_scmi: reset: fix reset_state assignment in scmi_domain_reset
  bus: ti-sysc: Remove unpaired sysc_clkdm_deny_idle()
  ARM: dts: logicpd-som-lv: Fix i2c2 and i2c3 Pin mux
  ARM: dts: am3517-evm: Fix missing video
  ARM: dts: logicpd-torpedo-baseboard: Fix missing video
  ARM: omap2plus_defconfig: Fix missing video
  bus: ti-sysc: Fix handling of invalid clocks
  bus: ti-sysc: Fix clock handling for no-idle quirks
2019-09-30 10:04:28 -07:00
Olof Johansson
9bfd7319e8 Merge tag 'fixes-5.4-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/fixes
Fixes for omap variants

Few fixes for ti-sysc interconnect target module driver for no-idle
quirks that caused nfsroot to fail on some dra7 boards.

And let's fixes to get LCD working again for logicpd board that got
broken a while back with removal of panel-dpi driver. We need to now
use generic CONFIG_DRM_PANEL_SIMPLE instead.

* tag 'fixes-5.4-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  bus: ti-sysc: Remove unpaired sysc_clkdm_deny_idle()
  ARM: dts: logicpd-som-lv: Fix i2c2 and i2c3 Pin mux
  ARM: dts: am3517-evm: Fix missing video
  ARM: dts: logicpd-torpedo-baseboard: Fix missing video
  ARM: omap2plus_defconfig: Fix missing video
  bus: ti-sysc: Fix handling of invalid clocks
  bus: ti-sysc: Fix clock handling for no-idle quirks

Link: https://lore.kernel.org/r/pull-1568819401-72461@atomide.com
Signed-off-by: Olof Johansson <olof@lixom.net>
2019-09-29 11:20:48 -07:00
Linus Torvalds
f97c81dc6c ARM: SoC: late updates for v5.4
This is some material that we picked up into our tree late or
 that had complex inter-depondencies. The fact that there are these
 interdependencies tends to meant that these are often actually the most
 interesting new additions:
 
 The new Aspeed AST2600 baseboard management controller is added, this
 is a Cortex-A7 based follow-up to the ARM11 based AST2500 and had some
 dependencies on other device drivers.
 
 After many years, support for the MMP2 based OLPC XO-1.75 finally makes
 it into the kernel.
 
 The Armada 3720 based Turris Mox open source router platform is a late
 addition and it follows some preparatory work across multiple branches.
 
 The OMAP2+ platform had some large-scale cleanup involving driver
 changes and DT changes, here we finish it off, dropping a lot of the
 now-unused platform data.
 
 The TI K3 platform that got added for 5.3 gains a lot more support
 for individual bits on the SoC, this part just came late for the
 merge window.
 
 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'armsoc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC late updates from Arnd Bergmann:
 "This is some material that we picked up into our tree late or that had
  complex inter-depondencies. The fact that there are these
  interdependencies tends to meant that these are often actually the
  most interesting new additions:

   - The new Aspeed AST2600 baseboard management controller is added,
     this is a Cortex-A7 based follow-up to the ARM11 based AST2500 and
     had some dependencies on other device drivers.

   - After many years, support for the MMP2 based OLPC XO-1.75 finally
     makes it into the kernel.

   - The Armada 3720 based Turris Mox open source router platform is a
     late addition and it follows some preparatory work across multiple
     branches.

   - The OMAP2+ platform had some large-scale cleanup involving driver
     changes and DT changes, here we finish it off, dropping a lot of
     the now-unused platform data.

   - The TI K3 platform that got added for 5.3 gains a lot more support
     for individual bits on the SoC, this part just came late for the
     merge window"

[ This pull request itself wasn't actually sent late at all by Arnd, but
  I waited on the branches that it used to be pulled first, so it ends
  up being merged much later than the other ARM SoC pull requests this
  merge window     - Linus ]

* tag 'armsoc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (57 commits)
  ARM: dts: dir685: Drop spi-cpol from the display
  ARM: dts: aspeed: Add AST2600 pinmux nodes
  ARM: dts: aspeed: Add AST2600 and EVB
  ARM: exynos: Enable support for ARM architected timers
  ARM: samsung: Fix system restart on S3C6410
  ARM: dts: mmp2: add OLPC XO 1.75 machine
  ARM: dts: mmp2: rename the USB PHY node
  ARM: dts: mmp2: specify reg-shift for the UARTs
  ARM: dts: mmp2: add camera interfaces
  ARM: dts: mmp2: fix the SPI nodes
  ARM: dts: mmp2: trivial whitespace fix
  arm64: dts: marvell: add DTS for Turris Mox
  dt-bindings: marvell: document Turris Mox compatible
  arm64: dts: marvell: armada-37xx: add SPI CS1 pinctrl
  arm64: dts: ti: k3-j721e-main: Fix gic-its node unit-address
  arm64: dts: ti: k3-am65-main: Fix gic-its node unit-address
  arm64: dts: ti: k3-j721e-main: Add hwspinlock node
  arm64: dts: ti: k3-am65-main: Add hwspinlock node
  arm64: dts: k3-j721e: Add gpio-keys on common processor board
  dt-bindings: pinctrl: k3: Introduce pinmux definitions for J721E
  ...
2019-09-20 15:53:02 -07:00
Linus Torvalds
399eb9b6cb ARM: SoC driver updates for v5.4
The branch contains driver changes that are tightly
 connected to SoC specific code. Aside from smaller
 cleanups and bug fixes, here is a list of the notable
 changes.
 
 New device drivers:
 
 - The Turris Mox router has a new "moxtet" bus driver
   for its on-board pluggable extension bus. The
   same platform also gains a firmware driver.
 
 - The Samsung Exynos family gains a new Chipid driver
   exporting using the soc device sysfs interface
 
 - A similar socinfo driver for Qualcomm Snapdragon
   chips.
 
 - A firmware driver for the NXP i.MX DSP IPC protocol
   using shared memory and a mailbox
 
 Other changes:
 
 - The i.MX reset controller driver now supports the
   NXP i.MX8MM chip
 
 - Amlogic SoC specific drivers gain support for
   the S905X3 and A311D chips
 
 - A rework of the TI Davinci framebuffer driver to
   allow important cleanups in the platform code
 
 - A couple of device drivers for removed ARM SoC
   platforms are removed. Most of the removals were
   picked up by other maintainers, this contains
   whatever was left.
 
 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC driver updates from Arnd Bergmann:
 "This contains driver changes that are tightly connected to SoC
  specific code. Aside from smaller cleanups and bug fixes, here is a
  list of the notable changes.

  New device drivers:

   - The Turris Mox router has a new "moxtet" bus driver for its
     on-board pluggable extension bus. The same platform also gains a
     firmware driver.

   - The Samsung Exynos family gains a new Chipid driver exporting using
     the soc device sysfs interface

   - A similar socinfo driver for Qualcomm Snapdragon chips.

   - A firmware driver for the NXP i.MX DSP IPC protocol using shared
     memory and a mailbox

  Other changes:

   - The i.MX reset controller driver now supports the NXP i.MX8MM chip

   - Amlogic SoC specific drivers gain support for the S905X3 and A311D
     chips

   - A rework of the TI Davinci framebuffer driver to allow important
     cleanups in the platform code

   - A couple of device drivers for removed ARM SoC platforms are
     removed. Most of the removals were picked up by other maintainers,
     this contains whatever was left"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (123 commits)
  bus: uniphier-system-bus: use devm_platform_ioremap_resource()
  soc: ti: ti_sci_pm_domains: Add support for exclusive and shared access
  dt-bindings: ti_sci_pm_domains: Add support for exclusive and shared access
  firmware: ti_sci: Allow for device shared and exclusive requests
  bus: imx-weim: remove incorrect __init annotations
  fbdev: remove w90x900/nuc900 platform drivers
  spi: remove w90x900 driver
  net: remove w90p910-ether driver
  net: remove ks8695 driver
  firmware: turris-mox-rwtm: Add sysfs documentation
  firmware: Add Turris Mox rWTM firmware driver
  dt-bindings: firmware: Document cznic,turris-mox-rwtm binding
  bus: moxtet: fix unsigned comparison to less than zero
  bus: moxtet: remove set but not used variable 'dummy'
  ARM: scoop: Use the right include
  dt-bindings: power: add Amlogic Everything-Else power domains bindings
  soc: amlogic: Add support for Everything-Else power domains controller
  fbdev: da8xx: use resource management for dma
  fbdev: da8xx-fb: drop a redundant if
  fbdev: da8xx-fb: use devm_platform_ioremap_resource()
  ...
2019-09-16 15:52:38 -07:00
Tony Lindgren
a4c8723a16 bus: ti-sysc: Remove unpaired sysc_clkdm_deny_idle()
Commit d098913a10 ("bus: ti-sysc: Fix clock handling for no-idle
quirks") fixed handling for no-idle quirk modules that are not enabled
by the bootloader.

But it also caused unpaired clockdomain calls that won't allow idling
the system. That's because clkdm_allow_idle_nolock() and
clkdm_deny_idle_nolock() have usage count with clkdm->forcewake_count.

Let's drop the unpaired sysc_clkdm_deny_idle() to fix idling of devices.

Fixes: d098913a10 ("bus: ti-sysc: Fix clock handling for no-idle quirks")
Cc: Keerthy <j-keerthy@ti.com>
Cc: Vignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-09-06 12:57:46 -07:00
Tony Lindgren
2783d0638a bus: ti-sysc: Fix handling of invalid clocks
We can currently get "Unable to handle kernel paging request at
virtual address" for invalid clocks with dts node but no driver:

(__clk_get_hw) from [<c0138ebc>] (ti_sysc_find_one_clockdomain+0x18/0x34)
(ti_sysc_find_one_clockdomain) from [<c0138f0c>] (ti_sysc_clkdm_init+0x34/0xdc)
(ti_sysc_clkdm_init) from [<c0584660>] (sysc_probe+0xa50/0x10e8)
(sysc_probe) from [<c065c6ac>] (platform_drv_probe+0x58/0xa8)

Let's add IS_ERR checks to ti_sysc_clkdm_init() as And let's start treating
clk_get() with -ENOENT as a proper error. If the clock name is specified
in device tree we must succeed with clk_get() to continue. For modules with
no clock names specified in device tree we will just ignore the clocks.

Fixes: 2b2f7def05 ("bus: ti-sysc: Add support for missing clockdomain handling")
Acked-by: Roger Quadros <rogerq@ti.com>
Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-09-05 13:01:29 -07:00
Masahiro Yamada
ef92bfdaa7 bus: uniphier-system-bus: use devm_platform_ioremap_resource()
Replace the chain of platform_get_resource() and devm_ioremap_resource()
with devm_platform_ioremap_resource().

This allows to remove the local variable for (struct resource *), and
have one function call less.

Link: https://lore.kernel.org/r/20190905032122.26076-1-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-09-05 17:57:18 +02:00
Tony Lindgren
d098913a10 bus: ti-sysc: Fix clock handling for no-idle quirks
NFSroot can fail on dra7 when cpsw is probed using ti-sysc interconnect
target module driver as reported by Keerthy.

Device clocks and the interconnect target module may or may not be
enabled by the bootloader on init, but we currently assume the clocks
and module are on from the bootloader for "ti,no-idle" and
"ti,no-idle-on-init" quirks as reported by Grygorii Strashko.

Let's fix the issue by always enabling clocks init, and
never disable them for "ti,no-idle" quirk. For "ti,no-idle-on-init"
quirk, we must decrement the usage count later on to allow PM
runtime to idle the module if requested.

Fixes: 1a5cd7c23c ("bus: ti-sysc: Enable all clocks directly during init to read revision")
Cc: Keerthy <j-keerthy@ti.com>
Cc: Vignesh Raghavendra <vigneshr@ti.com>
Reported-by: Keerthy <j-keerthy@ti.com>
Reported-by: Grygorii Strashko <grygorii.strashko@ti.com>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-09-05 07:37:22 -07:00
Arnd Bergmann
3b1261fb72 bus: imx-weim: remove incorrect __init annotations
The probe function is no longer __init, so anything it calls now
must also be available at runtime, as Kbuild points out when building
with clang-9:

WARNING: vmlinux.o(.text+0x6e7040): Section mismatch in reference from the function weim_probe() to the function .init.text:imx_weim_gpr_setup()
The function weim_probe() references
the function __init imx_weim_gpr_setup().
This is often because weim_probe lacks a __init
annotation or the annotation of imx_weim_gpr_setup is wrong.

WARNING: vmlinux.o(.text+0x6e70f0): Section mismatch in reference from the function weim_probe() to the function .init.text:weim_timing_setup()
The function weim_probe() references
the function __init weim_timing_setup().
This is often because weim_probe lacks a __init
annotation or the annotation of weim_timing_setup is wrong.

Remove the remaining __init markings that are now wrong.

Fixes: 4a92f07816 ("bus: imx-weim: use module_platform_driver()")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-09-04 17:59:32 +02:00
Colin Ian King
6811d26df5 bus: moxtet: fix unsigned comparison to less than zero
Currently the size_t variable res is being checked for
an error failure however the unsigned variable is never
less than zero so this test is always false. Fix this by
making variable res ssize_t

Link: https://lore.kernel.org/r/20190822010351.15660-2-marek.behun@nic.cz
Addresses-Coverity: ("Unsigned compared against 0")
Fixes: 5bc7f990cd ("bus: Add support for Moxtet bus")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-09-04 17:30:16 +02:00
Jason Yan
caebdd3c11 bus: moxtet: remove set but not used variable 'dummy'
Fixes gcc '-Wunused-but-set-variable' warning:

drivers/bus/moxtet.c: In function moxtet_remove:
drivers/bus/moxtet.c:822:6: warning: variable dummy set but not used
[-Wunused-but-set-variable]

Link: https://lore.kernel.org/r/20190822010351.15660-3-marek.behun@nic.cz
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-09-04 17:30:10 +02:00
Arnd Bergmann
49826a68b5 mvebu dt64 for 5.4 (part 2)
Add support for Turris Mox board (Armada 3720 SoC based)
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Merge tag 'mvebu-dt64-5.4-2' of git://git.infradead.org/linux-mvebu into arm/late

mvebu dt64 for 5.4 (part 2)

Add support for Turris Mox board (Armada 3720 SoC based)

* tag 'mvebu-dt64-5.4-2' of git://git.infradead.org/linux-mvebu: (53 commits)
  arm64: dts: marvell: add DTS for Turris Mox
  dt-bindings: marvell: document Turris Mox compatible
  arm64: dts: marvell: armada-37xx: add SPI CS1 pinctrl
  arm64: dts: marvell: Add cpu clock node on Armada 7K/8K
  arm64: dts: marvell: Convert 7k/8k usb-phy properties to phy-supply
  arm64: dts: marvell: Add 7k/8k PHYs in PCIe nodes
  arm64: dts: marvell: Add 7k/8k PHYs in USB3 nodes
  arm64: dts: marvell: Add 7k/8k per-port PHYs in SATA nodes
  arm64: dts: marvell: Add CP110 COMPHY clocks
  arm64: dts: marvell: armada-37xx: add mailbox node
  dt-bindings: gpio: Document GPIOs via Moxtet bus
  drivers: gpio: Add support for GPIOs over Moxtet bus
  bus: moxtet: Add sysfs and debugfs documentation
  dt-bindings: bus: Document moxtet bus binding
  bus: Add support for Moxtet bus
  reset: Add support for resets provided by SCMI
  firmware: arm_scmi: Add RESET protocol in SCMI v2.0
  dt-bindings: arm: Extend SCMI to support new reset protocol
  firmware: arm_scmi: Make use SCMI v2.0 fastchannel for performance protocol
  firmware: arm_scmi: Add discovery of SCMI v2.0 performance fastchannels
  ...

Link: https://lore.kernel.org/r/87h85two0r.fsf@FE-laptop
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-09-04 17:28:47 +02:00
Arnd Bergmann
30d8bb9003 more ti-sysc driver changes for omap variants for v5.4
Few changes mostly to deal with sgx SoC glue quirk for omap36xx that
 is needed for the related sgx SoC glue dts branch. The other changes
 are to simplify sysc_check_one_child() sysc_check_children() to be void
 functions, and detect d2d module when debugging is enabled.
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Merge tag 'omap-for-v5.4/ti-sysc-part2-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/late

more ti-sysc driver changes for omap variants for v5.4

Few changes mostly to deal with sgx SoC glue quirk for omap36xx that
is needed for the related sgx SoC glue dts branch. The other changes
are to simplify sysc_check_one_child() sysc_check_children() to be void
functions, and detect d2d module when debugging is enabled.

* tag 'omap-for-v5.4/ti-sysc-part2-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  bus: ti-sysc: Detect d2d when debug is enabled
  bus: ti-sysc: Add module enable quirk for SGX on omap36xx
  bus: ti-sysc: Change return types of functions

Link: https://lore.kernel.org/r/pull-1567016893-318461@atomide.com-2
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-09-04 17:20:41 +02:00
Arnd Bergmann
bf3176b350 Driver changes for ti-sysc for v5.4
Few changes to prepare for using a reset driver for PRM rstctrl mostly
 to deal with the clocks for reset. Then few minor clean-up patches and
 SPDX license identifier changes, and add a MAINTAINERs file entry.
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Merge tag 'omap-for-v5.4/ti-sysc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/late

Driver changes for ti-sysc for v5.4

Few changes to prepare for using a reset driver for PRM rstctrl mostly
to deal with the clocks for reset. Then few minor clean-up patches and
SPDX license identifier changes, and add a MAINTAINERs file entry.

* tag 'omap-for-v5.4/ti-sysc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  bus: ti-sysc: remove set but not used variable 'quirks'
  bus: ti-sysc: allow reset sharing across devices
  bus: ti-sysc: rework the reset handling
  bus: ti-sysc: re-order the clkdm control around reset handling
  bus: ti-sysc: Add missing kerneldoc comments
  bus: ti-sysc: Switch to SPDX license identifier
  dt-bindings: ti-sysc: Add SPDX license identifier
  MAINTAINERS: Add ti-sysc files under the OMAP2+ entry

Link: https://lore.kernel.org/r/pull-1566599057-142651@atomide.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-09-04 17:20:04 +02:00
Arnd Bergmann
bff00fdf03 i.MX drivers update for 5.4:
- A series from Anson Huang to add UID support for i.MX8 SoC and SCU
    drivers.
  - A series from Daniel Baluta to add DSP IPC driver for communication
    between host AP (Linux) and the firmware running on DSP embedded in
    i.MX8 SoCs.
  - A small fix for GPCv2 error code printing.
  - Switch from module_platform_driver_probe() to module_platform_driver()
    for imx-weim driver, as we need the driver to probe again when device
    is present later.
  - Add optional burst clock mode support for imx-weim driver.
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Merge tag 'imx-drivers-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/drivers

i.MX drivers update for 5.4:
 - A series from Anson Huang to add UID support for i.MX8 SoC and SCU
   drivers.
 - A series from Daniel Baluta to add DSP IPC driver for communication
   between host AP (Linux) and the firmware running on DSP embedded in
   i.MX8 SoCs.
 - A small fix for GPCv2 error code printing.
 - Switch from module_platform_driver_probe() to module_platform_driver()
   for imx-weim driver, as we need the driver to probe again when device
   is present later.
 - Add optional burst clock mode support for imx-weim driver.

* tag 'imx-drivers-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  soc: imx: gpcv2: Print the correct error code
  bus: imx-weim: use module_platform_driver()
  firmware: imx: Add DSP IPC protocol interface
  soc: imx-scu: Add SoC UID(unique identifier) support
  bus: imx-weim: optionally enable burst clock mode
  firmware: imx: scu-pd: Add IRQSTR_DSP PD range
  firmware: imx: scu-pd: Add mu13 b side PD range
  firmware: imx: scu-pd: Rename mu PD range to mu_a
  soc: imx8: Add i.MX8MM UID(unique identifier) support
  soc: imx8: Add i.MX8MQ UID(unique identifier) support

Link: https://lore.kernel.org/r/20190825153237.28829-1-shawnguo@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-09-03 22:44:04 +02:00
Arnd Bergmann
2f7ce2aafa Allwinner drivers patches for 5.4
One driver to remove a redundant error message in the Allwinner RSB
 driver.
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Merge tag 'sunxi-drivers-for-5.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into arm/drivers

Allwinner drivers patches for 5.4

One driver to remove a redundant error message in the Allwinner RSB
driver.

* tag 'sunxi-drivers-for-5.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
  bus: sunxi-rsb: Remove dev_err() usage after platform_get_irq()

Link: https://lore.kernel.org/r/f9edfc8e-19b7-4b6e-897a-35f3bdcc8643.lettre@localhost
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-09-03 22:16:34 +02:00
Arnd Bergmann
34614c30bf Hisilicon fixes for v5.3-rc
- Fixed RCU usage in logical PIO
 - Added a function to unregister a logical PIO range in logical PIO
   to support the fixes in the hisi-lpc driver
 - Fixed and optimized hisi-lpc driver to avoid potential use-after-free
   and driver unbind crash
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Merge tag 'hisi-fixes-for-5.3' of git://github.com/hisilicon/linux-hisi into arm/fixes

Hisilicon fixes for v5.3-rc

- Fixed RCU usage in logical PIO
- Added a function to unregister a logical PIO range in logical PIO
  to support the fixes in the hisi-lpc driver
- Fixed and optimized hisi-lpc driver to avoid potential use-after-free
  and driver unbind crash

* tag 'hisi-fixes-for-5.3' of git://github.com/hisilicon/linux-hisi:
  bus: hisi_lpc: Add .remove method to avoid driver unbind crash
  bus: hisi_lpc: Unregister logical PIO range to avoid potential use-after-free
  lib: logic_pio: Add logic_pio_unregister_range()
  lib: logic_pio: Avoid possible overlap for unregistering regions
  lib: logic_pio: Fix RCU usage

Link: https://lore.kernel.org/r/5D562335.7000902@hisilicon.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-08-29 17:23:52 +02:00
Tony Lindgren
7edd00f71f bus: ti-sysc: Detect d2d when debug is enabled
We want to see what modules probe when debug is enabled.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-08-26 08:33:25 -07:00
Tony Lindgren
d7f563db77 bus: ti-sysc: Add module enable quirk for SGX on omap36xx
Add module enable quirk for SGX needed on omap36xx.

Cc: Adam Ford <aford173@gmail.com>
Cc: Filip Matijević <filip.matijevic.pz@gmail.com>
Cc: "H. Nikolaus Schaller" <hns@goldelico.com>
Cc: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Cc: moaz korena <moaz@korena.xyz>
Cc: Merlijn Wajer <merlijn@wizzup.org>
Cc: Paweł Chmiel <pawel.mikolaj.chmiel@gmail.com>
Cc: Philipp Rossak <embed3d@gmail.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-08-26 08:33:24 -07:00
Nishka Dasgupta
c6e78d7019 bus: ti-sysc: Change return types of functions
Change return type of functions sysc_check_one_child() and
sysc_check_children() from int to void as neither ever returns an error.
Modify call sites of both functions accordingly.

Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-08-26 08:33:23 -07:00
Sascha Hauer
4a92f07816 bus: imx-weim: use module_platform_driver()
Switch from module_platform_driver_probe() to module_platform_driver().
The former is not suitable for booting with device tree as the driver
will be registered before the device and thus won't be probed again
when the device is present.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-08-19 14:07:23 +02:00
Ioana Ciornei
eadf0b17b4 bus: fsl-mc: remove explicit device_link_del
Starting with commit 72175d4ea4 ("driver core: Make driver core own
stateful device links") stateful device links are owned by the driver
core and should not be explicitly removed on device unbind. Delete all
device_link_del appearances from the fsl-mc bus.

Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Acked-By: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
2019-08-16 14:17:35 -05:00
Marek Behún
5bc7f990cd bus: Add support for Moxtet bus
On the Turris Mox router different modules can be connected to the main
CPU board: currently a module with a SFP cage, a module with MiniPCIe
connector, a PCIe pass-through MiniPCIe connector module, a 4-port
switch module, an 8-port switch module, and a 4-port USB3 module.

For example:
  [CPU]-[PCIe-pass-through]-[PCIe]-[8-port switch]-[8-port switch]-[SFP]

Each of this modules has an input and output shift register, and these
are connected via SPI to the CPU board.

Via SPI we are able to discover which modules are connected, in which
order, and we can also read some information about the modules (eg.
their interrupt status), and configure them.
From each module 8 bits can be read (of which low 4 bits identify the
module) and 8 bits can be written.

For example from the module with a SFP cage we can read the LOS,
TX-FAULT and MOD-DEF0 signals, while we can write TX-DISABLE and
RATE-SELECT signals.

This driver creates a new bus type, called "moxtet". For each Mox module
it finds via SPI, it creates a new device on the moxtet bus so that
drivers can be written for them.

It also implements a virtual interrupt controller for the modules which
send their interrupt status over the SPI shift register. These modules
do this in addition to sending their interrupt status via the shared
interrupt line. When the shared interrupt is triggered, we read from the
shift register and handle IRQs for all devices which are in interrupt.

The topology of how Mox modules are connected can then be read by
listing /sys/bus/moxtet/devices.

Link: https://lore.kernel.org/r/20190812161118.21476-2-marek.behun@nic.cz
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-08-14 15:30:35 +02:00
YueHaibing
c8a738f4cf bus: ti-sysc: remove set but not used variable 'quirks'
Fixes gcc '-Wunused-but-set-variable' warning:

drivers/bus/ti-sysc.c: In function sysc_reset:
drivers/bus/ti-sysc.c:1452:50: warning: variable quirks set but not used [-Wunused-but-set-variable]

It is never used since commit e0db94fe87 ("bus: ti-sysc: Make
OCP reset work for sysstatus and sysconfig reset bits")

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-08-13 04:40:11 -07:00
Tero Kristo
bb88b86c1f bus: ti-sysc: allow reset sharing across devices
Some devices need to share their reset signals, like DSP MMUs, thus drop
the exclusive notation from reset request. Also, balance the init time
reset count, otherwise the resets will never be applied post boot.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-08-13 04:32:15 -07:00
Tero Kristo
4345f0dc01 bus: ti-sysc: rework the reset handling
If reset controllers are assigned to the ti-sysc target-module, only
ti-sysc is going to be able to control these. Thus, remove all the
disable_on_idle flag usage, and assert/de-assert the reset always
in the idle path. Otherwise the reset signal will always just be
de-asserted.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-08-13 04:32:09 -07:00
Tero Kristo
b603631443 bus: ti-sysc: re-order the clkdm control around reset handling
Parenting clockdomain for the IP should be enabled during the reset
handling logic, otherwise the reset may not finish properly. Re-order
the clockdomain control logic to avoid this.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-08-13 04:32:03 -07:00
Suman Anna
b58056da2e bus: ti-sysc: Add missing kerneldoc comments
A few fields in various structures is missing the corresponding
kerneldoc comments. Add them. Also, fixed the comment for sidlemodes.

Signed-off-by: Suman Anna <s-anna@ti.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-08-13 04:13:32 -07:00
Suman Anna
54d662227c bus: ti-sysc: Switch to SPDX license identifier
Use the appropriate SPDX license identifier in the TI sysc
interconnect target driver source files and drop the previous
boilerplate license text. Also, add the the SPDX license
identifier in the associated ti-sysc header files.

Signed-off-by: Suman Anna <s-anna@ti.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-08-13 04:13:32 -07:00
Suman Anna
a304f483b6 bus: ti-sysc: Simplify cleanup upon failures in sysc_probe()
The clocks are not yet parsed and prepared until after a successful
sysc_get_clocks(), so there is no need to unprepare the clocks upon
any failure of any of the prior functions in sysc_probe(). The current
code path would have been a no-op because of the clock validity checks
within sysc_unprepare(), but let's just simplify the cleanup path by
returning the error directly.

While at this, also fix the cleanup path for a sysc_init_resets()
failure which is executed after the clocks are prepared.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-08-13 03:38:37 -07:00
John Garry
10e62b4797 bus: hisi_lpc: Add .remove method to avoid driver unbind crash
The original driver author seemed to be under the impression that a driver
cannot be removed if it does not have a .remove method. Or maybe if it is
a built-in platform driver.

This is not true. This crash can be created:

root@ubuntu:/sys/bus/platform/drivers/hisi-lpc# echo HISI0191\:00 > unbind
root@ubuntu:/sys/bus/platform/drivers/hisi-lpc# ipmitool raw 6 1
 Unable to handle kernel paging request at virtual address ffff000010035010
 Mem abort info:
   ESR = 0x96000047
   Exception class = DABT (current EL), IL = 32 bits
   SET = 0, FnV = 0
   EA = 0, S1PTW = 0
 Data abort info:
   ISV = 0, ISS = 0x00000047
   CM = 0, WnR = 1
 swapper pgtable: 4k pages, 48-bit VAs, pgdp=000000000118b000
 [ffff000010035010] pgd=0000041ffbfff003, pud=0000041ffbffe003, pmd=0000041ffbffd003, pte=0000000000000000
 Internal error: Oops: 96000047 [#1] PREEMPT SMP
 Modules linked in:
 CPU: 17 PID: 1473 Comm: ipmitool Not tainted 5.2.0-rc5-00003-gf68c53b414a3-dirty #198
 Hardware name: Huawei Taishan 2280 /D05, BIOS Hisilicon D05 IT21 Nemo 2.0 RC0 04/18/2018
 pstate: 20000085 (nzCv daIf -PAN -UAO)
 pc : hisi_lpc_target_in+0x7c/0x120
 lr : hisi_lpc_target_in+0x70/0x120
 sp : ffff00001efe3930
 x29: ffff00001efe3930 x28: ffff841f9f599200
 x27: 0000000000000002 x26: 0000000000000000
 x25: 0000000000000080 x24: 00000000000000e4
 x23: 0000000000000000 x22: 0000000000000064
 x21: ffff801fb667d280 x20: 0000000000000001
 x19: ffff00001efe39ac x18: 0000000000000000
 x17: 0000000000000000 x16: 0000000000000000
 x15: 0000000000000000 x14: 0000000000000000
 x13: 0000000000000000 x12: 0000000000000000
 x11: 0000000000000000 x10: 0000000000000000
 x9 : 0000000000000000 x8 : ffff841febe60340
 x7 : ffff801fb55c52e8 x6 : 0000000000000000
 x5 : 0000000000ffc0e3 x4 : 0000000000000001
 x3 : ffff801fb667d280 x2 : 0000000000000001
 x1 : ffff000010035010 x0 : ffff000010035000
 Call trace:
  hisi_lpc_target_in+0x7c/0x120
  hisi_lpc_comm_in+0x88/0x98
  logic_inb+0x5c/0xb8
  port_inb+0x18/0x20
  bt_event+0x38/0x808
  smi_event_handler+0x4c/0x5a0
  check_start_timer_thread.part.4+0x40/0x58
  sender+0x78/0x88
  smi_send.isra.6+0x94/0x108
  i_ipmi_request+0x2c4/0x8f8
  ipmi_request_settime+0x124/0x160
  handle_send_req+0x19c/0x208
  ipmi_ioctl+0x2c0/0x990
  do_vfs_ioctl+0xb8/0x8f8
  ksys_ioctl+0x80/0xb8
  __arm64_sys_ioctl+0x1c/0x28
  el0_svc_common.constprop.0+0x64/0x160
  el0_svc_handler+0x28/0x78
  el0_svc+0x8/0xc
 Code: 941d1511 aa0003f9 f94006a0 91004001 (b9000034)
 ---[ end trace aa842b86af7069e4 ]---

The problem here is that the host goes away but the associated logical PIO
region remains registered, as do the children devices.

Fix by adding a .remove method to tidy-up by removing the child devices
and unregistering the logical PIO region.

Cc: stable@vger.kernel.org
Fixes: adf38bb0b5 ("HISI LPC: Support the LPC host on Hip06/Hip07 with DT bindings")
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
2019-08-13 14:54:34 +08:00
John Garry
1b15a5632a bus: hisi_lpc: Unregister logical PIO range to avoid potential use-after-free
If, after registering a logical PIO range, the driver probe later fails,
the logical PIO range memory will be released automatically.

This causes an issue, in that the logical PIO range is not unregistered
and the released range memory may be later referenced.

Fix by unregistering the logical PIO range.

And since we now unregister the logical PIO range for probe failure, avoid
the special ordering of setting logical PIO range ops, which was the
previous (poor) attempt at a safeguard against this.

Cc: stable@vger.kernel.org
Fixes: adf38bb0b5 ("HISI LPC: Support the LPC host on Hip06/Hip07 with DT bindings")
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
2019-08-13 14:54:28 +08:00
Stephen Boyd
9d4db2f5f0 bus: sunxi-rsb: Remove dev_err() usage after platform_get_irq()
We don't need dev_err() messages when platform_get_irq() fails now that
platform_get_irq() prints an error message itself when something goes
wrong. Let's remove these prints with a simple semantic patch.

// <smpl>
@@
expression ret;
struct platform_device *E;
@@

ret =
(
platform_get_irq(E, ...)
|
platform_get_irq_byname(E, ...)
);

if ( \( ret < 0 \| ret <= 0 \) )
{
(
-if (ret != -EPROBE_DEFER)
-{ ...
-dev_err(...);
-... }
|
...
-dev_err(...);
)
...
}
// </smpl>

While we're here, remove braces on if statements that only have one
statement (manually).

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Maxime Ripard <maxime.ripard@bootlin.com>
Cc: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
2019-08-06 14:15:49 +08:00
Sven Van Asbroeck
77266e722f bus: imx-weim: optionally enable burst clock mode
To enable burst clock mode, add the fsl,burst-clk-enable
property to the weim bus's devicetree node.

Example:
weim: weim@21b8000 {
	compatible = "fsl,imx6q-weim";
	reg = <0x021b8000 0x4000>;
	clocks = <&clks 196>;
	#address-cells = <2>;
	#size-cells = <1>;
	ranges = <0 0 0x08000000 0x08000000>;
	fsl,weim-cs-gpr = <&gpr>;
	fsl,burst-clk-enable;

	client-device@0,0 {
		compatible = "something";
		reg = <0 0 0x02000000>;
		#address-cells = <1>;
		#size-cells = <1>;
		bank-width = <2>;
		fsl,weim-cs-timing = <0x00620081 0x00000001 0x1c022000
				0x0000c000 0x1404a38e 0x00000000>;
	};
};

Signed-off-by: Sven Van Asbroeck <TheSven73@gmail.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-08-03 10:18:56 +02:00
Tony Lindgren
89bbc6f1eb ARM: dts: Fix incorrect dcan register mapping for am3, am4 and dra7
We are currently using a wrong register for dcan revision. Although
this is currently only used for detecting the dcan module, let's
fix it to avoid confusion.

Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-07-24 00:51:27 -07:00
Tony Lindgren
e212abd452 bus: ti-sysc: Fix using configured sysc mask value
We have cases where there are no softreset bits like with am335x lcdc.
In that case ti,sysc-mask = <0> needs to be handled properly.

Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-07-24 00:50:01 -07:00
Tony Lindgren
6ee8241d17 bus: ti-sysc: Fix handling of forced idle
For some devices we can get the following warning on boot:

ti-sysc 48485200.target-module: sysc_disable_module: invalid midlemode

Fix this by treating SYSC_IDLE_FORCE like we do for the other bits
for idlemodes mask.

Fixes: d59b60564c ("bus: ti-sysc: Add generic enable/disable functions")
Cc: Roger Quadros <rogerq@ti.com>
Reviewed-by: Suman Anna <s-anna@ti.com>
Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-07-24 00:50:01 -07:00
Linus Torvalds
8362fd64f0 ARM: SoC-related driver updates
Various driver updates for platforms and a couple of the small driver
 subsystems we merge through our tree:
 
  - A driver for SCU (system control) on NXP i.MX8QXP
  - Qualcomm Always-on Subsystem messaging driver (AOSS QMP)
  - Qualcomm PM support for MSM8998
  - Support for a newer version of DRAM PHY driver for Broadcom (DPFE)
  - Reset controller support for Bitmain BM1880
  - TI SCI (System Control Interface) support for CPU control on AM654
    processors
  - More TI sysc refactoring and rework
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC-related driver updates from Olof Johansson:
 "Various driver updates for platforms and a couple of the small driver
  subsystems we merge through our tree:

   - A driver for SCU (system control) on NXP i.MX8QXP

   - Qualcomm Always-on Subsystem messaging driver (AOSS QMP)

   - Qualcomm PM support for MSM8998

   - Support for a newer version of DRAM PHY driver for Broadcom (DPFE)

   - Reset controller support for Bitmain BM1880

   - TI SCI (System Control Interface) support for CPU control on AM654
     processors

   - More TI sysc refactoring and rework"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (84 commits)
  reset: remove redundant null check on pointer dev
  soc: rockchip: work around clang warning
  dt-bindings: reset: imx7: Fix the spelling of 'indices'
  soc: imx: Add i.MX8MN SoC driver support
  soc: aspeed: lpc-ctrl: Fix probe error handling
  soc: qcom: geni: Add support for ACPI
  firmware: ti_sci: Fix gcc unused-but-set-variable warning
  firmware: ti_sci: Use the correct style for SPDX License Identifier
  soc: imx8: Use existing of_root directly
  soc: imx8: Fix potential kernel dump in error path
  firmware/psci: psci_checker: Park kthreads before stopping them
  memory: move jedec_ddr.h from include/memory to drivers/memory/
  memory: move jedec_ddr_data.c from lib/ to drivers/memory/
  MAINTAINERS: Remove myself as qcom maintainer
  soc: aspeed: lpc-ctrl: make parameter optional
  soc: qcom: apr: Don't use reg for domain id
  soc: qcom: fix QCOM_AOSS_QMP dependency and build errors
  memory: tegra: Fix -Wunused-const-variable
  firmware: tegra: Early resume BPMP
  soc/tegra: Select pinctrl for Tegra194
  ...
2019-07-19 17:13:56 -07:00
Linus Torvalds
c884d8ac7f SPDX update for 5.2-rc6
Another round of SPDX updates for 5.2-rc6
 
 Here is what I am guessing is going to be the last "big" SPDX update for
 5.2.  It contains all of the remaining GPLv2 and GPLv2+ updates that
 were "easy" to determine by pattern matching.  The ones after this are
 going to be a bit more difficult and the people on the spdx list will be
 discussing them on a case-by-case basis now.
 
 Another 5000+ files are fixed up, so our overall totals are:
 	Files checked:            64545
 	Files with SPDX:          45529
 
 Compared to the 5.1 kernel which was:
 	Files checked:            63848
 	Files with SPDX:          22576
 This is a huge improvement.
 
 Also, we deleted another 20000 lines of boilerplate license crud, always
 nice to see in a diffstat.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'spdx-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx

Pull still more SPDX updates from Greg KH:
 "Another round of SPDX updates for 5.2-rc6

  Here is what I am guessing is going to be the last "big" SPDX update
  for 5.2. It contains all of the remaining GPLv2 and GPLv2+ updates
  that were "easy" to determine by pattern matching. The ones after this
  are going to be a bit more difficult and the people on the spdx list
  will be discussing them on a case-by-case basis now.

  Another 5000+ files are fixed up, so our overall totals are:
	Files checked:            64545
	Files with SPDX:          45529

  Compared to the 5.1 kernel which was:
	Files checked:            63848
	Files with SPDX:          22576

  This is a huge improvement.

  Also, we deleted another 20000 lines of boilerplate license crud,
  always nice to see in a diffstat"

* tag 'spdx-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx: (65 commits)
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 507
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 506
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 505
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 504
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 503
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 502
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 501
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 499
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 498
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 497
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 496
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 495
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 491
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 490
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 489
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 488
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 487
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 486
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 485
  ...
2019-06-21 09:58:42 -07:00
Thomas Gleixner
d2912cb15b treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
Based on 2 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation #

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 4122 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-19 17:09:55 +02:00
Olof Johansson
c3bd15a078 ti-sysc interconnect target module driver changes for v5.3
This series of changes improves probing devices with ti-sysc to the
 point where we can now probe most devices without the custom dts
 property "ti,hwmods" and no legacy platform data :)
 
 We add support for platform data callbacks for idling and unidling the
 clockdomain the module belongs to. The rest of the series mostly adds
 handling for the various quirks needed by old legacy modules such as
 i2c and watchdog. Some quirk handling is still missing for few modules,
 but those will be added as they get tested.
 
 The related platform data and dts changes will be sent separately.
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Merge tag 'omap-for-v5.3/ti-sysc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/drivers

ti-sysc interconnect target module driver changes for v5.3

This series of changes improves probing devices with ti-sysc to the
point where we can now probe most devices without the custom dts
property "ti,hwmods" and no legacy platform data :)

We add support for platform data callbacks for idling and unidling the
clockdomain the module belongs to. The rest of the series mostly adds
handling for the various quirks needed by old legacy modules such as
i2c and watchdog. Some quirk handling is still missing for few modules,
but those will be added as they get tested.

The related platform data and dts changes will be sent separately.

* tag 'omap-for-v5.3/ti-sysc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  bus: ti-sysc: Add support for module specific reset quirks
  bus: ti-sysc: Detect uarts also on omap34xx
  bus: ti-sysc: Do rstctrl reset handling in two phases
  bus: ti-sysc: Add support for disabling module without legacy mode
  bus: ti-sysc: Set ENAWAKEUP if available
  bus: ti-sysc: Handle swsup idle mode quirks
  bus: ti-sysc: Handle clockactivity for enable and disable
  bus: ti-sysc: Enable interconnect target module autoidle bit on enable
  bus: ti-sysc: Allow QUIRK_LEGACY_IDLE even if legacy_mode is not set
  bus: ti-sysc: Make OCP reset work for sysstatus and sysconfig reset bits
  bus: ti-sysc: Support 16-bit writes too
  bus: ti-sysc: Add support for missing clockdomain handling
  ARM: dts: dra71x: Disable usb4_tm target module
  ARM: dts: dra71x: Disable rtc target module
  ARM: dts: dra76x: Disable usb4_tm target module
  ARM: dts: dra76x: Disable rtc target module
  ARM: dts: dra76x: Update MMC2_HS200_MANUAL1 iodelay values
  ARM: dts: am57xx-idk: Remove support for voltage switching for SD card
  bus: ti-sysc: Handle devices with no control registers
  ARM: dts: Configure osc clock for d_can on am335x

Signed-off-by: Olof Johansson <olof@lixom.net>
2019-06-17 04:53:32 -07:00
Olof Johansson
426356392c This pull request contains Broadcom ARM/ARM64/MIPS SoCs drivers changes
for 5.3, please pull the following:
 
 - Markus provides a set of updates to the DPFE driver to support a new
   revision of the API to the firmware (version 3) and provides minor fixes
   about how the MR4-8 words are read for LPDDR4 devices
 
 - Florian removes a print of a virtual address in brcmstb_gisb.c
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Merge tag 'arm-soc/for-5.3/drivers' of https://github.com/Broadcom/stblinux into arm/drivers

This pull request contains Broadcom ARM/ARM64/MIPS SoCs drivers changes
for 5.3, please pull the following:

- Markus provides a set of updates to the DPFE driver to support a new
  revision of the API to the firmware (version 3) and provides minor fixes
  about how the MR4-8 words are read for LPDDR4 devices

- Florian removes a print of a virtual address in brcmstb_gisb.c

* tag 'arm-soc/for-5.3/drivers' of https://github.com/Broadcom/stblinux:
  memory: brcmstb: dpfe: introduce DPFE API v3
  memory: brcmstb: dpfe: prepare for API-dependent sysfs attributes
  memory: brcmstb: dpfe: prepare support for multiple API versions
  memory: brcmstb: dpfe: wait for DCPU to be ready
  memory: brcmstb: dpfe: report firmware loading error
  memory: brcmstb: dpfe: remove unused code and fix formatting
  bus: brcmstb_gisb: Remove print of base address
  memory: brcmstb: dpfe: use byte 3 of registers MR4-MR8
  memory: brcmstb: dpfe: optimize generic_show()
  memory: brcmstb: dpfe: use msleep() over udelay()

Signed-off-by: Olof Johansson <olof@lixom.net>
2019-06-17 04:52:52 -07:00
Olof Johansson
1126037393 NXP/FSL SoC driver updates for v5.3
DPAA2 Console driver
 - Add driver to export two char devices to dump logs for MC and
   AIOP
 
 DPAA2 DPIO driver
 - Add support for memory backed QBMan portals
 - Increase the timeout period to prevent false error
 - Add APIs to retrieve QBMan portal probing status
 
 DPAA Qman driver
 - Only make liodn fixup on powerpc SoCs with PAMU iommu
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Merge tag 'soc-fsl-next-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/leo/linux into arm/drivers

NXP/FSL SoC driver updates for v5.3

DPAA2 Console driver
- Add driver to export two char devices to dump logs for MC and
  AIOP

DPAA2 DPIO driver
- Add support for memory backed QBMan portals
- Increase the timeout period to prevent false error
- Add APIs to retrieve QBMan portal probing status

DPAA Qman driver
- Only make liodn fixup on powerpc SoCs with PAMU iommu

* tag 'soc-fsl-next-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/leo/linux:
  soc: fsl: qbman_portals: add APIs to retrieve the probing status
  soc: fsl: qman: fixup liodns only on ppc targets
  soc: fsl: dpio: Add support for memory backed QBMan portals
  bus: mc-bus: Add support for mapping shareable portals
  soc: fsl: dpio: Increase timeout for QBMan Management Commands
  soc: fsl: add DPAA2 console support
  Documentation: DT: Add entry for DPAA2 console
  soc: fsl: guts: Add definition for LX2160A

Signed-off-by: Olof Johansson <olof@lixom.net>
2019-06-17 04:38:06 -07:00
Olof Johansson
6515a2ceac Fixes for omap variants for dra7 mmc voltage and boot issues
This series contains dra7 mmc voltage fixes, and fixes to the recent
 changes to probe devices with device tree data insteas of legacy
 platform data:
 
 - Two fixes for dra7 mmc that needs 1.8V mode disabled as in case of a
   reset, the bootrom will try to access the mmc card at 3.3V potentially
   damaging the card
 
 - Two regression fixes for am335x d_can. We must allow devices with no
   control registers for ti-sysc interconnect target module driver for
   at least d_can, and we remove the incorrect control registers for
   d_can. And we must configure the osc clock for d_can as otherwise
   register access may fail depending on the bootloader version
 
 - Four regression fixes for dra7 variant dts files to tag rtc and usb4
   as disabled for dra71x and dra76x. These SoC variants do not have
   these devices, and got accidentally enabled when the L4 interconnect
   got defined in the dra7-l4.dtsi for the dra7 SoC family
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Merge tag 'omap-for-v5.2/fixes-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

Fixes for omap variants for dra7 mmc voltage and boot issues

This series contains dra7 mmc voltage fixes, and fixes to the recent
changes to probe devices with device tree data insteas of legacy
platform data:

- Two fixes for dra7 mmc that needs 1.8V mode disabled as in case of a
  reset, the bootrom will try to access the mmc card at 3.3V potentially
  damaging the card

- Two regression fixes for am335x d_can. We must allow devices with no
  control registers for ti-sysc interconnect target module driver for
  at least d_can, and we remove the incorrect control registers for
  d_can. And we must configure the osc clock for d_can as otherwise
  register access may fail depending on the bootloader version

- Four regression fixes for dra7 variant dts files to tag rtc and usb4
  as disabled for dra71x and dra76x. These SoC variants do not have
  these devices, and got accidentally enabled when the L4 interconnect
  got defined in the dra7-l4.dtsi for the dra7 SoC family

* tag 'omap-for-v5.2/fixes-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: dts: dra71x: Disable usb4_tm target module
  ARM: dts: dra71x: Disable rtc target module
  ARM: dts: dra76x: Disable usb4_tm target module
  ARM: dts: dra76x: Disable rtc target module
  ARM: dts: dra76x: Update MMC2_HS200_MANUAL1 iodelay values
  ARM: dts: am57xx-idk: Remove support for voltage switching for SD card
  bus: ti-sysc: Handle devices with no control registers
  ARM: dts: Configure osc clock for d_can on am335x

Signed-off-by: Olof Johansson <olof@lixom.net>
2019-06-16 13:27:36 -07:00
Tony Lindgren
4e23be473e bus: ti-sysc: Add support for module specific reset quirks
Some older interconnect target modules need module internal clock
toggling quirks to reset properly. We've been doing this in the
platform code earlier, but need to be able to it directly in the
ti-sysc driver when we no longer rely on on the platform code.

Let's add reset handling for 1-wire, i2c and watchdog. Later on
we can add more modules like msdi and dss as they get tested.
For dra7 pcie, we should be able to just use the rstctrl reset
driver when available.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-06-10 04:52:22 -07:00
Thomas Gleixner
1802d0beec treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation this program is
  distributed in the hope that it will be useful but without any
  warranty without even the implied warranty of merchantability or
  fitness for a particular purpose see the gnu general public license
  for more details

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 655 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070034.575739538@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:41 -07:00
Thomas Gleixner
c942fddf87 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157
Based on 3 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version this program is distributed in the
  hope that it will be useful but without any warranty without even
  the implied warranty of merchantability or fitness for a particular
  purpose see the gnu general public license for more details

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version [author] [kishon] [vijay] [abraham]
  [i] [kishon]@[ti] [com] this program is distributed in the hope that
  it will be useful but without any warranty without even the implied
  warranty of merchantability or fitness for a particular purpose see
  the gnu general public license for more details

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version [author] [graeme] [gregory]
  [gg]@[slimlogic] [co] [uk] [author] [kishon] [vijay] [abraham] [i]
  [kishon]@[ti] [com] [based] [on] [twl6030]_[usb] [c] [author] [hema]
  [hk] [hemahk]@[ti] [com] this program is distributed in the hope
  that it will be useful but without any warranty without even the
  implied warranty of merchantability or fitness for a particular
  purpose see the gnu general public license for more details

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 1105 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070033.202006027@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:37 -07:00
Thomas Gleixner
1a59d1b8e0 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version this program is distributed in the
  hope that it will be useful but without any warranty without even
  the implied warranty of merchantability or fitness for a particular
  purpose see the gnu general public license for more details you
  should have received a copy of the gnu general public license along
  with this program if not write to the free software foundation inc
  59 temple place suite 330 boston ma 02111 1307 usa

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 1334 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:35 -07:00
Tony Lindgren
b6a53c4c87 bus: ti-sysc: Detect uarts also on omap34xx
Looks like we currently only detect UART on omap36xx, let's also
add support for omap34xx. And let's also fix the SWSUP mode, it should
be SWSUP_SIDLE for omap3, not SWSUP_SIDLE_ACT like for omap4 and later.

Note that we are still booting omap3 for most part without ti-sysc,
so no need to treat this change as a fix.

Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-05-28 05:19:17 -07:00
Tony Lindgren
ea5a2e4d54 bus: ti-sysc: Do rstctrl reset handling in two phases
We need to deassert rstctrl resets before enabling clocks to avoid clock
"failed to enable" errors. For asserting rstctrl reset, the clocks need
to be enabled.

As the reset controller status is not available for arrays, let's use
devm_reset_control_get_optional() so we can get the status after reset.

Note that depends on a proper PRM rstctrl driver, so far I've only
tested this with earlier reset-simple patches.

Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-05-28 05:19:16 -07:00
Tony Lindgren
8383e25994 bus: ti-sysc: Add support for disabling module without legacy mode
We must not assert reset for modules with no child device drivers
until in runtime_suspend. Otherwise register access will fail without
legacy mode helping us.

Let's add a flag for disable_on_idle and move the reset driver
handling to runtime suspend and resume. We can then also use the
disable_on_idle flag to reconfigure sysconfig register for PM
modes requesting it.

Let's also make the other flags use bitfield while at it instead of
bool.

Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-05-28 05:19:16 -07:00
Tony Lindgren
6e09f497eb bus: ti-sysc: Set ENAWAKEUP if available
Some modules have ENAWAKEUP bit that we need to configure when not
relying on platform data callbacks.

Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-05-28 05:19:16 -07:00
Tony Lindgren
fb685f1c19 bus: ti-sysc: Handle swsup idle mode quirks
Some modules have idlemodes wired, but not completely functional. We have
quirks for SWSUP_SIDLE and SWSUP_SIDLE_ACT to manage interconnect target
modules without hardware support, but we've been only using them so far
in legacy mode. Let's add support for SWSUP quirks in non-legacy mode too.

Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-05-28 05:19:16 -07:00
Tony Lindgren
ae9ae12e9d bus: ti-sysc: Handle clockactivity for enable and disable
Modules with clockactivity need it configured during enable.

Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-05-28 05:19:15 -07:00
Tony Lindgren
eec26555ae bus: ti-sysc: Enable interconnect target module autoidle bit on enable
For interconnect target modules with autoidle bit wired, we need to manage
it for enable and disable.

Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-05-28 05:19:15 -07:00
Tony Lindgren
bd808f9a44 bus: ti-sysc: Allow QUIRK_LEGACY_IDLE even if legacy_mode is not set
We need to specify QUIRK_LEGACY_IDLE for device drivers that still have
pm_runtime_irq_safe() set like 8250.

Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-05-28 05:19:15 -07:00
Tony Lindgren
e0db94fe87 bus: ti-sysc: Make OCP reset work for sysstatus and sysconfig reset bits
We've had minimal OCP softreset support in ti-sysc interconnect target
module driver only used for MCAN driver so far. But it turns out that
MCAN has the sysstatus register resetdone bit inverted compared to most
other modules.

Let's make OCP softreset work for other typical cases with reset status
in sysstatus or sysconfig register so we can use the new functions for
sysc_enable_module() and sysc_disable_module() without "ti,hwmods"
property in the following patches.

Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-05-28 05:19:15 -07:00
Tony Lindgren
5aa9129536 bus: ti-sysc: Support 16-bit writes too
We need to also support 16-bit writes for i2c in addition to the reads
when we start configuring the sysconfig register for reset and idle modes.

Note that only i2c revision register has LO and HI registers, so let's
add a check also for 16-bit register read. This change is currently cosmetic
and does not affect anything until we enable the module specific quirk
handling for i2c reset and enable later on.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-05-28 05:19:14 -07:00
Tony Lindgren
2b2f7def05 bus: ti-sysc: Add support for missing clockdomain handling
We need to let ti-sysc driver manage clockdomain autoidle for the
duration of of reset, enable and idle. And we need to do it before we
enable the clock and after we disable it. Currently we are still
relying on platform callbacks indirectly managing clockdomain autoidle.
But I noticed that for device tree only probed drivers it now happens
only after we enabling the clocks and before we disable the clocks,
while it should be the other way around. So far I have not noticed
any issues with this though.

Let's add new ti_sysc_clkdm_deny_idle() and ti_sysc_clkdm_allow_idle()
functions for ti-sysc driver to use to manage clockdomains directly via
platform data callbacks. Note that we can implement the clockdomain
functions in pdata-quirks.c as for probing devices without "ti,hwmods"
custom property we don't need to use the other platform data callbacks.

Let's do this in one patch as there's is still an unlikely chance we
may need to apply this as a fix for v5.2 for dropping legacy platform
data for some devices. We also do have the option of adding back the
platform data if needed in case of trouble.

Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-05-28 05:19:14 -07:00
Roy Pledge
dde2137d62 bus: mc-bus: Add support for mapping shareable portals
Starting with v5 of NXP QBMan devices the hardware supports using
regular cacheable/shareable memory as the backing store for the
portals.

This patch adds support for the new portal mode by switching to
use the DPRC get object region v2 command which returns both
a base address and offset for the portal memory. The new portal
region is identified as shareable through the addition of a new
flag.

Signed-off-by: Roy Pledge <roy.pledge@nxp.com>
Reviewed-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
2019-05-20 14:28:16 -05:00
Florian Fainelli
3087974a3d bus: brcmstb_gisb: Remove print of base address
Since commit ad67b74d24 ("printk: hash addresses printed with %p")
pointers are being hashed when printed. Displaying the virtual memory at
bootup time is not helpful, especially given we use a dev_info() which
already displays the platform device's address.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2019-05-20 09:32:35 -07:00
Tony Lindgren
4ee23cd76c Merge branch 'omap-for-v5.2/ti-sysc' into fixes 2019-05-20 08:33:03 -07:00
Linus Torvalds
dc413a90ed ARM: SoC-related driver updates
Various driver updates for platforms and a couple of the small driver
 subsystems we merge through our tree:
 
 Among the larger pieces:
 
  - Power management improvements for TI am335x and am437x (RTC suspend/wake)
  - Misc new additions for Amlogic (socinfo updates)
  - ZynqMP FPGA manager
  - Nvidia improvements for reset/powergate handling
  - PMIC wrapper for Mediatek MT8516
  - Misc fixes/improvements for ARM SCMI, TEE, NXP i.MX SCU drivers
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC-related driver updates from Olof Johansson:
 "Various driver updates for platforms and a couple of the small driver
  subsystems we merge through our tree:

  Among the larger pieces:

   - Power management improvements for TI am335x and am437x (RTC
     suspend/wake)

   - Misc new additions for Amlogic (socinfo updates)

   - ZynqMP FPGA manager

   - Nvidia improvements for reset/powergate handling

   - PMIC wrapper for Mediatek MT8516

   - Misc fixes/improvements for ARM SCMI, TEE, NXP i.MX SCU drivers"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (57 commits)
  soc: aspeed: fix Kconfig
  soc: add aspeed folder and misc drivers
  spi: zynqmp: Fix build break
  soc: imx: Add generic i.MX8 SoC driver
  MAINTAINERS: Update email for Qualcomm SoC maintainer
  memory: tegra: Fix a typos for "fdcdwr2" mc client
  Revert "ARM: tegra: Restore memory arbitration on resume from LP1 on Tegra30+"
  memory: tegra: Replace readl-writel with mc_readl-mc_writel
  memory: tegra: Fix integer overflow on tick value calculation
  memory: tegra: Fix missed registers values latching
  ARM: tegra: cpuidle: Handle tick broadcasting within cpuidle core on Tegra20/30
  optee: allow to work without static shared memory
  soc/tegra: pmc: Move powergate initialisation to probe
  soc/tegra: pmc: Remove reset sysfs entries on error
  soc/tegra: pmc: Fix reset sources and levels
  soc: amlogic: meson-gx-pwrc-vpu: Add support for G12A
  soc: amlogic: meson-gx-pwrc-vpu: Fix power on/off register bitmask
  fpga manager: Adding FPGA Manager support for Xilinx zynqmp
  dt-bindings: fpga: Add bindings for ZynqMP fpga driver
  firmware: xilinx: Add fpga API's
  ...
2019-05-16 09:19:14 -07:00
Tony Lindgren
e4f50c8d10 bus: ti-sysc: Handle devices with no control registers
Some interconnect target modules have no module control registers at
all, such as d_can on am335x and am437x.

The d_can register offset at 0 is CTL register with 0x401 as the default
value. I guess I mistook the 0x401 value for a revision register as the
value happens to look similar to what the revision registers typically
have for other modules.

To handle modules with no control registers, we need to improve the
ti-sysc driver a bit to bail out with errors on no control registers,
and then we can remove the bogus revision registers for d_can.

Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-05-02 06:29:46 -07:00
Roger Quadros
d59b60564c bus: ti-sysc: Add generic enable/disable functions
For non legacy cases, add generic sysc_enable_module()
and sysc_disable_module() functions.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-04-09 08:58:48 -07:00
Tony Lindgren
13aad51935 bus: ti-sysc: Detect DMIC for debugging
Detect DMIC to see what we have connected if config DEBUG is enabled.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-04-05 15:10:36 -07:00
Tony Lindgren
b4a9a7a389 bus: ti-sysc: Handle swsup idle mode quirks
In preparation of dropping interconnect target module platform data in
favor of devicetree based data, we must pass swsup idle quirks to the
platform data functions.

For now, let's only tag the UART modules with the SWSUP_SIDLE_ACT quirk.
The other modules will get tagged with swsup quirks as we drop the
platform data and test the changes.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-04-05 15:10:36 -07:00
Tony Lindgren
a54275f4ab bus: ti-sysc: Add quirk handling for external optional functional clock
We cannot access mcpdm registers at all unless there is an optional pdmclk
configured. As this is currently only needed for mcpdm, let's check for
mcpdm in sysc_get_clocks(). If it turns out to be needed for other modules
too, we can add more flags to the quirks table for this.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-04-03 09:32:35 -07:00