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Commit Graph

1868 Commits

Author SHA1 Message Date
Robert Jarzmik
9a97434215 ARM: pxa: enhance smc91x platform data
Instead of having the smc91x driver relying on machine_is_*() calls,
provide this data through platform data, ie. idp, mainstone and
stargate.

This way, the driver doesn't need anymore machine_is_*() calls, which
wouldn't work anymore with a device-tree build.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-18 14:14:20 -04:00
Linus Torvalds
66f2c6d952 ARM: SoC platform updates for v4.9
These are updates for platform specific code on 32-bit ARM machines,
 essentially anything that can not (yet) be expressed using DT files.
 
 Noteworthy changes include:
 
 - We get support for running in big-endian mode on two platforms:
   sunxi (Allwinner) and s3c24xx (old Samsung).
 
 - The recently added Uniphier platform now uses standard PSCI
   methods for SMP booting and we remove support for old bootloader
   versions that did not support it yet.
 
 - In sunxi, we gain support for the "Nextthing GR8" SoC, which
   is a close relative of the Allwinner A13 and R8 chips.
 
 - PXA completes its move over to the generic dmaengine framework
   and removes its old private API
 
 - mach-bcm gains support for BCM47189/BCM53573, their first ARM
   SoC with integrated 802.11ac wireless networking.
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Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC platform updates from Arnd Bergmann:
 "These are updates for platform specific code on 32-bit ARM machines,
  essentially anything that can not (yet) be expressed using DT files.

  Noteworthy changes include:

   - We get support for running in big-endian mode on two platforms:
     sunxi (Allwinner) and s3c24xx (old Samsung).

   - The recently added Uniphier platform now uses standard PSCI methods
     for SMP booting and we remove support for old bootloader versions
     that did not support it yet.

   - In sunxi, we gain support for the "Nextthing GR8" SoC, which is a
     close relative of the Allwinner A13 and R8 chips.

   - PXA completes its move over to the generic dmaengine framework and
     removes its old private API

   - mach-bcm gains support for BCM47189/BCM53573, their first ARM SoC
     with integrated 802.11ac wireless networking"

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (54 commits)
  ARM: imx legacy: pca100: move peripheral initialization to .init_late
  ARM: imx legacy: mx27ads: move peripheral initialization to .init_late
  ARM: imx legacy: mx21ads: move peripheral initialization to .init_late
  ARM: imx legacy: pcm043: move peripheral initialization to .init_late
  ARM: imx legacy: mx35-3ds: move peripheral initialization to .init_late
  ARM: imx legacy: mx27-3ds: move peripheral initialization to .init_late
  ARM: imx legacy: imx27-visstrim-m10: move peripheral initialization to .init_late
  ARM: imx legacy: vpr200: move peripheral initialization to .init_late
  ARM: imx legacy: mx31moboard: move peripheral initialization to .init_late
  ARM: imx legacy: armadillo5x0: move peripheral initialization to .init_late
  ARM: imx legacy: qong: move peripheral initialization to .init_late
  ARM: imx legacy: mx31-3ds: move peripheral initialization to .init_late
  ARM: imx legacy: pcm037: move peripheral initialization to .init_late
  ARM: imx legacy: mx31lilly: move peripheral initialization to .init_late
  ARM: imx legacy: mx31ads: move peripheral initialization to .init_late
  ARM: imx legacy: mx31lite: move peripheral initialization to .init_late
  ARM: imx legacy: kzm: move peripheral initialization to .init_late
  MAINTAINERS: update list of Oxnas maintainers
  ARM: orion5x: remove extraneous NO_IRQ
  ARM: orion: simplify orion_ge00_switch_init
  ...
2016-10-07 21:18:42 -07:00
Linus Torvalds
6a497e9d58 This is the bulk of GPIO changes for the v4.9 series:
Subsystem improvements:
 
 - Do away with the last users of the obsolete Kconfig options
   ARCH_REQUIRE_GPIOLIB and ARCH_WANT_OPTIONAL_GPIOLIB (the latter
   always sounded like an item on a wishlist to Santa Claus to
   me). We can now select GPIOLIB and be done with it, for all
   archs. After some struggle it even work on UM. Not that it has
   GPIO, but if it wants to, it can select the library.
 
 - Continued efforts to make drivers properly either tristate or
   bool.
 
 - Introduce a warning for drivers assigning default triggers to
   their irqchip lines when probed from device tree, so we find and
   fix these ambigous drivers. It is agreed that in the OF config
   path, the device tree defines trigger characteristics.
 
 - The same warning, mutatis mutandis, for ACPI-probed GPIO
   irqchips.
 
 - We introduce the ability to mark certain IRQ lines as "unusable"
   as they can be taken by BIOS/firmware, unrouted in silicon and
   generally nasty if you use them, and such things. This is
   put to good use in the STMPE driver and also in the Cherryview
   pin control driver.
 
 - A new "mockup" virtual GPIO device that can be used for testing.
   The plan is to add unit tests under tools/* for exercising this
   device and verify that the kernel code paths are working as they
   should.
 
 - Make memory-mapped I/O-drivers depend on HAS_IOMEM. This was
   implicit all the time, but when people started building UM
   with allyesconfig or allmodconfig it exploded in their face.
 
 - Move some stray bits of device tree and ACPI HW description
   callbacks down into their respective implementation silo. These
   were causing issues when compiling on !HAS_IOMEM as well, so
   now eventually UM compiles the GPIOLIB library if it wants to.
 
 New drivers:
 
 - New driver for the Aspeed GPIO front-end companion to the
   pin controller merged through the pin control tree.
 
 - New driver for the LP873x PMIC GPIO portions.
 
 - New driver for Technologic Systems' I2C FPGA GPIO such as
   TS4900, TS-7970, TS-7990 and TS-4100.
 
 - New driver for the Broadcom BCM63xx series including BCM6338
   and BCM6345.
 
 - New driver for the Intel WhiskeyCove PMIC GPIO.
 
 - New driver for the Allwinner AXP209 PMIC GPIO portions.
 
 - New driver for Diamond Systems 48 line GPIO-MM, another of
   these port-mapped I/O expansion cards.
 
 - Support the STMicroelectronics STMPE1600 variant in the STMPE
   driver.
 
 Driver improvements:
 
 - The STMPE driver now supports rising/falling edge detection
   properly for IRQs.
 
 - The PCA954x will now fetch and enable its VCC regulator properly.
 
 - Major rework of the PCA953x driver with the goal of eventually
   switching it over to use regmap and thus modernize it even more.
 
 - Switch the IOP driver to use the generic MMIO GPIO library.
 
 - Move the ages old HTC EGPIO (extended GPIO) GPIO expander driver
   over to this subsystem from MFD, achieveing some separation of
   concerns.
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Merge tag 'gpio-v4.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull GPIO updates from Linus Walleij:
 "This is the bulk of GPIO changes for the v4.9 series:

  Subsystem improvements:

   - do away with the last users of the obsolete Kconfig options
     ARCH_REQUIRE_GPIOLIB and ARCH_WANT_OPTIONAL_GPIOLIB (the latter
     always sounded like an item on a wishlist to Santa Claus to me). We
     can now select GPIOLIB and be done with it, for all archs. After
     some struggle it even work on UM. Not that it has GPIO, but if it
     wants to, it can select the library.

   - continued efforts to make drivers properly either tristate or bool.

   - introduce a warning for drivers assigning default triggers to their
     irqchip lines when probed from device tree, so we find and fix
     these ambigous drivers. It is agreed that in the OF config path,
     the device tree defines trigger characteristics.

   - the same warning, mutatis mutandis, for ACPI-probed GPIO irqchips.

   - we introduce the ability to mark certain IRQ lines as "unusable" as
     they can be taken by BIOS/firmware, unrouted in silicon and
     generally nasty if you use them, and such things. This is put to
     good use in the STMPE driver and also in the Cherryview pin control
     driver.

   - a new "mockup" virtual GPIO device that can be used for testing.
     The plan is to add unit tests under tools/* for exercising this
     device and verify that the kernel code paths are working as they
     should.

   - make memory-mapped I/O-drivers depend on HAS_IOMEM. This was
     implicit all the time, but when people started building UM with
     allyesconfig or allmodconfig it exploded in their face.

   - move some stray bits of device tree and ACPI HW description
     callbacks down into their respective implementation silo. These
     were causing issues when compiling on !HAS_IOMEM as well, so now
     eventually UM compiles the GPIOLIB library if it wants to.

  New drivers:

   - new driver for the Aspeed GPIO front-end companion to the pin
     controller merged through the pin control tree.

   - new driver for the LP873x PMIC GPIO portions.

   - new driver for Technologic Systems' I2C FPGA GPIO such as TS4900,
     TS-7970, TS-7990 and TS-4100.

   - new driver for the Broadcom BCM63xx series including BCM6338 and
     BCM6345.

   - new driver for the Intel WhiskeyCove PMIC GPIO.

   - new driver for the Allwinner AXP209 PMIC GPIO portions.

   - new driver for Diamond Systems 48 line GPIO-MM, another of these
     port-mapped I/O expansion cards.

   - support the STMicroelectronics STMPE1600 variant in the STMPE
     driver.

  Driver improvements:

   - the STMPE driver now supports rising/falling edge detection
     properly for IRQs.

   - the PCA954x will now fetch and enable its VCC regulator properly.

   - major rework of the PCA953x driver with the goal of eventually
     switching it over to use regmap and thus modernize it even more.

   - switch the IOP driver to use the generic MMIO GPIO library.

   - move the ages old HTC EGPIO (extended GPIO) GPIO expander driver
     over to this subsystem from MFD, achieveing some separation of
     concerns"

* tag 'gpio-v4.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (81 commits)
  gpio: add missing static inline
  gpio: OF: localize some gpiochip init functions
  gpio: acpi: separation of concerns
  gpio: OF: separation of concerns
  gpio: make memory-mapped drivers depend on HAS_IOMEM
  gpio: stmpe: use BIT() macro
  gpio: stmpe: forbid unused lines to be mapped as IRQs
  mfd/gpio: Move HTC GPIO driver to GPIO subsystem
  gpio: MAINTAINERS: Add an entry for GPIO mockup driver
  gpio/mockup: add virtual gpio device
  gpio: Added zynq specific check for special pins on bank zero
  gpio: axp209: Implement get_direction
  gpio: aspeed: remove redundant return value check
  gpio: loongson1: remove redundant return value check
  ARM: omap2: fix missing include
  gpio: tc3589x: fix up complaints on unsigned
  gpio: tc3589x: add .get_direction() and small cleanup
  gpio: f7188x: use gpiochip_get_data instead of container_of
  gpio: tps65218: use devm_gpiochip_add_data() for gpio registration
  gpio: aspeed: fix return value check in aspeed_gpio_probe()
  ...
2016-10-05 11:49:09 -07:00
Linus Walleij
ac2a8bca03 Merge branch 'ib-move-htc-egpio' into devel 2016-09-28 09:30:21 -07:00
Linus Walleij
3c6e8d05d6 mfd/gpio: Move HTC GPIO driver to GPIO subsystem
The HTC GPIO driver is a pure GPIO driver and I just can not
see what it is doing inside MFD. Let's just move it to GPIO
and take this opportunity to move the platform data to
<linux/platform_data/gpio-htc-egpio.h>

Cc: arm@kernel.org
Cc: Russell King <linux@armlinux.org.uk>
Acked-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-09-28 09:28:34 -07:00
Arnd Bergmann
be46f95b54 This is the pxa changes for v4.9 cycle.
This cycle is covering :
  - the removal of the legacy DMA API
    This is the major contributor to the negative diffstat, as dmaengine
    have taken over in this area.
  - IDE subsystem defconfig fixes
  - preparation for pxa25x to be device-tree compliant
  - various irq related fixes
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Merge tag 'pxa-for-4.9' of https://github.com/rjarzmik/linux into next/soc

Pull "This is the pxa changes for v4.9 cycle" from Robert Jarzmik:

This cycle is covering :
 - the removal of the legacy DMA API
   This is the major contributor to the negative diffstat, as dmaengine
   have taken over in this area.
 - IDE subsystem defconfig fixes
 - preparation for pxa25x to be device-tree compliant
 - various irq related fixes

* tag 'pxa-for-4.9' of https://github.com/rjarzmik/linux:
  ARM: pxa: pxa_cplds: fix interrupt handling
  ARM: pxa: remove irq init from dt machines
  ARM: pxa: Use kmalloc_array() in pxa_pm_init()
  ARM: pxa: magician: Remove duplicated I2C pins declaration
  ARM: pxa: fix GPIO double shifts
  arm: trizeps4_defconfig: disable IDE subsystem
  arm: pxa255-idp_defconfig: disable IDE subsystem
  arm: lpda270_defconfig: disable IDE subsystem
  arm: colibri_pxa270_defconfig: disable IDE subsystem
  ARM: pxa: add pxa25x device-tree support
  ARM: pxa: prepare pxa25x interrupts for device-tree platforms
  ARM: pxa: remove platform dma code
  ARM: pxa: remove devicetree boards from pxa_defconfig
2016-09-15 00:28:52 +02:00
Russell King
1a57c286d8 ARM: pxa/lubbock: add pcmcia clock
Add the required PCMCIA clock for the SA1111 "1800" device.  This clock
is used to compute timing information for the PCMCIA interface in the
SoC device, rather than the SA1111.  Hence, the provision of this clock
is a convenience for the driver and does not reflect the hardware, so
this must not be copied into DT.

Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Tested-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2016-09-12 12:12:31 +01:00
Robert Jarzmik
9ba63e3cc8 ARM: pxa: pxa_cplds: fix interrupt handling
Since its initial commit, the driver is buggy for multiple interrupts
handling. The translation from the former lubbock.c file was not
complete, and might stall all interrupt handling when multiple
interrupts occur.

This is especially true when inside the interrupt handler and if a new
interrupt comes and is not handled, leaving the output line still held,
and not creating a transition as the GPIO block behind would expect to
trigger another cplds_irq_handler() call.

For the record, the hardware is working as follows.

The interrupt mechanism relies on :
 - one status register
 - one mask register

Let's suppose the input irq lines are called :
 - i_sa1111
 - i_lan91x
 - i_mmc_cd
Let's suppose the status register for each irq line is called :
 - status_sa1111
 - status_lan91x
 - status_mmc_cd
Let's suppose the interrupt mask for each irq line is called :
 - irqen_sa1111
 - irqen_lan91x
 - irqen_mmc_cd
Let's suppose the output irq line, connected to GPIO0 is called :
 - o_gpio0

The behavior is as follows :
 - o_gpio0 = not((status_sa1111 & irqen_sa1111) |
		 (status_lan91x & irqen_lan91x) |
		 (status_mmc_cd & irqen_mmc_cd))
   => this is a N-to-1 NOR gate and multiple AND gates
 - irqen_* is exactly as programmed by a write to the FPGA
 - status_* behavior is governed by a bi-stable D flip-flop
   => on next FPGA clock :
     - if i_xxx is high, status_xxx becomes 1
     - if i_xxx is low, status_xxx remains as it is
     - if software sets status_xxx to 0, the D flip-flop is reset
       => status_xxx becomes 0
       => on next FPGA clock cycle, if i_xxx is high, status_xxx becomes
	  1 again

Fixes: fc9e38c0f4 ("ARM: pxa: lubbock: use new pxa_cplds driver")
Reported-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
2016-09-09 18:09:53 +02:00
Robert Jarzmik
32f17997c1 ARM: pxa: remove irq init from dt machines
The init_irq and handle_irq can be declared through standard irqchip
declaration and are not necessary in machine descriptions.

This is another step towards the generic kernel for the pxa
architecture.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Arnd Bergmann <arnd@arndb.de>
2016-09-09 18:08:01 +02:00
Markus Elfring
8571110575 ARM: pxa: Use kmalloc_array() in pxa_pm_init()
* A multiplication for the size determination of a memory allocation
  indicated that an array data structure should be processed.
  Thus use the corresponding function "kmalloc_array".

  This issue was detected by using the Coccinelle software.

* Replace the specification of a data type by a pointer dereference
  to make the corresponding size determination a bit safer according to
  the Linux coding style convention.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
2016-09-09 18:08:00 +02:00
Petr Cvek
e572f6491a ARM: pxa: magician: Remove duplicated I2C pins declaration
Magician has GPIO117_I2C_SCL and GPIO118_I2C_SDA pins declared twice.

Signed-off-by: Petr Cvek <petr.cvek@tul.cz>
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
2016-09-09 18:08:00 +02:00
Robert Jarzmik
ca26475bf0 ARM: pxa: fix GPIO double shifts
The commit 9bf448c66d ("ARM: pxa: use generic gpio operation instead of
gpio register") from Oct 17, 2011, leads to the following static checker
warning:
  arch/arm/mach-pxa/spitz_pm.c:172 spitz_charger_wakeup()
  warn: double left shift '!gpio_get_value(SPITZ_GPIO_KEY_INT)
        << (1 << ((SPITZ_GPIO_KEY_INT) & 31))'

As Dan reported, the value is shifted three times :
 - once by gpio_get_value(), which returns either 0 or BIT(gpio)
 - once by the shift operation '<<'
 - a last time by GPIO_bit(gpio) which is BIT(gpio)

Therefore the calculation lead to a chained or operator of :
 - (1 << gpio) << (1 << gpio) = (2^gpio)^gpio = 2 ^ (gpio * gpio)

It is be sheer luck the former statement works, only because each gpio
used is strictly smaller than 6, and therefore 2^(gpio^2) never
overflows a 32 bits value, and because it is used as a boolean value to
check a gpio activation.

As the xxx_charger_wakeup() functions are used as a true/false detection
mechanism, take that opportunity to change their prototypes from integer
return value to boolean one.

Fixes: 9bf448c66d ("ARM: pxa: use generic gpio operation instead of
gpio register")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
2016-09-09 18:07:59 +02:00
Russell King
2fb04fdf30 net: smc91x: fix SMC accesses
Commit b70661c708 ("net: smc91x: use run-time configuration on all ARM
machines") broke some ARM platforms through several mistakes.  Firstly,
the access size must correspond to the following rule:

(a) at least one of 16-bit or 8-bit access size must be supported
(b) 32-bit accesses are optional, and may be enabled in addition to
    the above.

Secondly, it provides no emulation of 16-bit accesses, instead blindly
making 16-bit accesses even when the platform specifies that only 8-bit
is supported.

Reorganise smc91x.h so we can make use of the existing 16-bit access
emulation already provided - if 16-bit accesses are supported, use
16-bit accesses directly, otherwise if 8-bit accesses are supported,
use the provided 16-bit access emulation.  If neither, BUG().  This
exactly reflects the driver behaviour prior to the commit being fixed.

Since the conversion incorrectly cut down the available access sizes on
several platforms, we also need to go through every platform and fix up
the overly-restrictive access size: Arnd assumed that if a platform can
perform 32-bit, 16-bit and 8-bit accesses, then only a 32-bit access
size needed to be specified - not so, all available access sizes must
be specified.

This likely fixes some performance regressions in doing this: if a
platform does not support 8-bit accesses, 8-bit accesses have been
emulated by performing a 16-bit read-modify-write access.

Tested on the Intel Assabet/Neponset platform, which supports only 8-bit
accesses, which was broken by the original commit.

Fixes: b70661c708 ("net: smc91x: use run-time configuration on all ARM machines")
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Tested-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-28 23:44:55 -04:00
Linus Torvalds
d3396e1e4e ARM: SoC fixes
A couple of bug fixes have come in for v4.8 so far. Since the first few were
 originally meant to go into -rc1 (but didn't get sent in time for travel
 reasons), the branch is unfortunately based on top of a commit in the
 middle of the merge window rather than -rc1.
 
 Content-wise we have
 
 - A fix for the last remaining broken build in kernelci,
   getting mach-shmobile to build again with SMP disabled
 - A fix for a realview regression that broke real hardware but
   not the qemu model that everyone uses in practice (needed
   for v4.7 as well)
 - A merge conflict fix for Tegra that also broke v4.7
 - Two Kconfig fixes for arm64 build regressions
 - A couple of arm32 build warning fixes (all harmless)
 - Fixing the RTC on Exynos7 Espresso (which apparently
   never worked right)
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Arnd Bergmann:
 "A couple of bug fixes have come in for v4.8 so far.  Since the first
  few were originally meant to go into -rc1 (but didn't get sent in time
  for travel reasons), the branch is unfortunately based on top of a
  commit in the middle of the merge window rather than -rc1.

  Content-wise we have:

   - a fix for the last remaining broken build in kernelci, getting
     mach-shmobile to build again with SMP disabled

   - a fix for a realview regression that broke real hardware but not
     the qemu model that everyone uses in practice (needed for v4.7 as
     well)

   - a merge conflict fix for Tegra that also broke v4.7

   - two Kconfig fixes for arm64 build regressions

   - a couple of arm32 build warning fixes (all harmless)

   - fix the RTC on Exynos7 Espresso (which apparently never worked
     right)"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  Merge tag 'pxa-fixes-v4.8' of https://github.com/rjarzmik/linux into randconfig-4.8
  arm64: Kconfig: select HISILICON_IRQ_MBIGEN only if PCI is selected
  arm64: Kconfig: select ALPINE_MSI only if PCI is selected
  ARM: dts: realview: Fix PBX-A9 cache description
  ARM: tegra: fix erroneous address in dts
  ARM: dts: add syscon compatible string for AP syscon
  ARM: dts: add syscon compatible string for CP syscon
  ARM: oxnas: select reset controller framework
  ARM: hide mach-*/ include for ARM_SINGLE_ARMV7M
  ARM: don't include removed directories
  Revert "ARM: aspeed: adapt defconfigs for new CONFIG_PRINTK_TIME"
  ARM: shmobile: don't call platform_can_secondary_boot on UP
  MAINTAINER: alpine: add a mailing list
  ARM: do away with final ARCH_REQUIRE_GPIOLIB
  arm64: dts: Fix RTC by providing rtc_src clock
2016-08-11 14:14:23 -07:00
Arnd Bergmann
12beb34671 Merge tag 'pxa-fixes-v4.8' of https://github.com/rjarzmik/linux into randconfig-4.8
This is the pxa changes for v4.8 cycle.

This is a tiny fix couple to enable changes in includes in
gpio API without breaking pxa boards.

* tag 'pxa-fixes-v4.8' of https://github.com/rjarzmik/linux:
  ARM: pxa: add module.h for corgi symbol_get/symbol_put usage
  ARM: pxa: add module.h for spitz symbol_get/symbol_put usage
2016-08-11 08:43:03 +02:00
Robert Jarzmik
d9edae44d7 ARM: pxa: add pxa25x device-tree support
Add a device-tree machine entry (DT_MACHINE_START) for pxa25x based
platforms.

Take the opportunity to sort the file machine descriptions by
alphabetical order.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
2016-08-09 08:16:59 +02:00
Robert Jarzmik
ca5be4c678 ARM: pxa: prepare pxa25x interrupts for device-tree platforms
Add the device-tree interrupts initialization function required to have
a generic pxa25x device-tree machine.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
2016-08-09 08:16:58 +02:00
Robert Jarzmik
1761b1076a ARM: pxa: remove platform dma code
As the last pxa related driver was converted to dmaengine, it's time to
kill the legacy dma code, which is not used anymore.

This finishes the pxa dmaengine transition.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
2016-08-09 08:16:58 +02:00
Linus Torvalds
6c84239d59 RTC for 4.8
Cleanups:
  - huge cleanup of rtc-generic and char/genrtc this allowed to cleanup rtc-cmos,
   rtc-sh, rtc-m68k, rtc-powerpc and rtc-parisc
  - move mn10300 to rtc-cmos
 
 Subsystem:
  - fix wakealarms after hibernate
  - multiples fixes for rctest
  - simplify implementations of .read_alarm
 
 New drivers:
  - Maxim MAX6916
 
 Drivers:
  - ds1307: fix weekday
  - m41t80: add wakeup support
  - pcf85063: add support for PCF85063A variant
  - rv8803: extend i2c fix and other fixes
  - s35390a: fix alarm reading, this fixes instant reboot after shutdown for QNAP
    TS-41x
  - s3c: clock fixes
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Merge tag 'rtc-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux

Pull RTC updates from Alexandre Belloni:
 "RTC for 4.8

  Cleanups:
   - huge cleanup of rtc-generic and char/genrtc this allowed to cleanup
     rtc-cmos, rtc-sh, rtc-m68k, rtc-powerpc and rtc-parisc
   - move mn10300 to rtc-cmos

  Subsystem:
   - fix wakealarms after hibernate
   - multiples fixes for rctest
   - simplify implementations of .read_alarm

  New drivers:
   - Maxim MAX6916

  Drivers:
   - ds1307: fix weekday
   - m41t80: add wakeup support
   - pcf85063: add support for PCF85063A variant
   - rv8803: extend i2c fix and other fixes
   - s35390a: fix alarm reading, this fixes instant reboot after
     shutdown for QNAP TS-41x
   - s3c: clock fixes"

* tag 'rtc-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (65 commits)
  rtc: rv8803: Clear V1F when setting the time
  rtc: rv8803: Stop the clock while setting the time
  rtc: rv8803: Always apply the I²C workaround
  rtc: rv8803: Fix read day of week
  rtc: rv8803: Remove the check for valid time
  rtc: rv8803: Kconfig: Indicate rx8900 support
  rtc: asm9260: remove .owner field for driver
  rtc: at91sam9: Fix missing spin_lock_init()
  rtc: m41t80: add suspend handlers for alarm IRQ
  rtc: m41t80: make it a real error message
  rtc: pcf85063: Add support for the PCF85063A device
  rtc: pcf85063: fix year range
  rtc: hym8563: in .read_alarm set .tm_sec to 0 to signal minute accuracy
  rtc: explicitly set tm_sec = 0 for drivers with minute accurancy
  rtc: s3c: Add s3c_rtc_{enable/disable}_clk in s3c_rtc_setfreq()
  rtc: s3c: Remove unnecessary call to disable already disabled clock
  rtc: abx80x: use devm_add_action_or_reset()
  rtc: m41t80: use devm_add_action_or_reset()
  rtc: fix a typo and reduce three empty lines to one
  rtc: s35390a: improve two comments in .set_alarm
  ...
2016-08-05 09:48:22 -04:00
Alexandre Belloni
cd9b518b98 rtc: v3020: move rtc-v3020.h to platform_data
rtc-v3020.h belongs to include/linux/platform_data/

Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-07-09 10:24:21 +02:00
Stephan Linz
e580822775 arm: use the new LED disk activity trigger
- dts: rename 'ide-disk' to 'disk-activity'
- platform: rename 'ide-disk' to 'disk-activity'
- defconfig: rename 'LEDS_TRIGGER_IDE_DISK' to 'LEDS_TRIGGER_DISK'

Signed-off-by: Stephan Linz <linz@li-pro.net>
Acked-by: Sekhar Nori <nsekhar@ti.com>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2016-06-27 08:58:40 +02:00
Linus Torvalds
28165ec7a9 ARM: SoC fixes for 4.7
This is a first set of bug fixes on top of what was merged for 4.7.
 Two patches for lpc32xx address a harmless build warning that was
 just introduced, one patch for the mediatek soc driver fixes a warning
 for arm64, and the pxa changes are minor cleanups that should have
 been part of the original pull requests but that I forgot to apply
 to the cleanup-fixes branch earlier.
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Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Arnd Bergmann:
 "This is a first set of bug fixes on top of what was merged for 4.7.

  Two patches for lpc32xx address a harmless build warning that was just
  introduced, one patch for the mediatek soc driver fixes a warning for
  arm64, and the pxa changes are minor cleanups that should have been
  part of the original pull requests but that I forgot to apply to the
  cleanup-fixes branch earlier"

* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: lpc32xx: fix NR_IRQS confict
  ARM: lpc32xx: remove legacy irq controller driver
  soc: mtk-pmic-wrap: avoid integer overflow warning
  ARM: pxa: Remove CLK_IS_ROOT
  ARM: pxa: activate pinctrl for device-tree machines
2016-05-24 15:50:58 -07:00
Linus Torvalds
8bc4d5f394 MTD updates for v4.7:
First cycle with Boris as NAND maintainer! Many (most) bullets stolen from him.
 
 Generic:
 
  * Migrated NAND LED trigger to be a generic MTD trigger
 
 NAND:
 
  * Introduction of the "ECC algorithm" concept, to avoid overloading the ECC
    mode field too much more
  * Replaced the nand_ecclayout infrastructure with something a little more
    flexible (finally!) and future proof
  * Rework of the OMAP GPMC and NAND drivers; the TI folks pulled some of
    this into their own tree as well
  * Prepare the sunxi NAND driver to receive DMA support
  * Handle bitflips in erased pages on GPMI revisions that do not support
    this in hardware.
 
 SPI NOR:
 
  * Start using the spi_flash_read() API for SPI drivers that support it (i.e.,
    SPI drivers with special memory-mapped flash modes)
 
 And other small scattered improvments.
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Merge tag 'for-linus-20160523' of git://git.infradead.org/linux-mtd

Pull MTD updates from Brian Norris:
 "First cycle with Boris as NAND maintainer! Many (most) bullets stolen
  from him.

  Generic:
   - Migrated NAND LED trigger to be a generic MTD trigger

  NAND:
   - Introduction of the "ECC algorithm" concept, to avoid overloading
     the ECC mode field too much more
   - Replaced the nand_ecclayout infrastructure with something a little
     more flexible (finally!) and future proof
   - Rework of the OMAP GPMC and NAND drivers; the TI folks pulled some
     of this into their own tree as well
   - Prepare the sunxi NAND driver to receive DMA support
   - Handle bitflips in erased pages on GPMI revisions that do not
     support this in hardware.

  SPI NOR:
   - Start using the spi_flash_read() API for SPI drivers that support
     it (i.e., SPI drivers with special memory-mapped flash modes)

  And other small scattered improvments"

* tag 'for-linus-20160523' of git://git.infradead.org/linux-mtd: (155 commits)
  mtd: spi-nor: support GigaDevice gd25lq64c
  mtd: nand_bch: fix spelling of "probably"
  mtd: brcmnand: respect ECC algorithm set by NAND subsystem
  gpmi-nand: Handle ECC Errors in erased pages
  Documentation: devicetree: deprecate "soft_bch" nand-ecc-mode value
  mtd: nand: add support for "nand-ecc-algo" DT property
  mtd: mtd: drop NAND_ECC_SOFT_BCH enum value
  mtd: drop support for NAND_ECC_SOFT_BCH as "soft_bch" mapping
  mtd: nand: read ECC algorithm from the new field
  mtd: nand: fsmc: validate ECC setup by checking algorithm directly
  mtd: nand: set ECC algorithm to Hamming on fallback
  staging: mt29f_spinand: set ECC algorithm explicitly
  CRIS v32: nand: set ECC algorithm explicitly
  mtd: nand: atmel: set ECC algorithm explicitly
  mtd: nand: davinci: set ECC algorithm explicitly
  mtd: nand: bf5xx: set ECC algorithm explicitly
  mtd: nand: omap2: Fix high memory dma prefetch transfer
  mtd: nand: omap2: Start dma request before enabling prefetch
  mtd: nandsim: add __init attribute
  mtd: nand: move of_get_nand_xxx() helpers into nand_base.c
  ...
2016-05-24 11:00:20 -07:00
Arnd Bergmann
4c1d76a1e1 This is the pxa changes for v4.7 cycle.
This is a minor cycle with :
  - cleanup fix from Stephen on clocks (CLK_ROOT deprecated)
  - pin control activation for device-tree platforms
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Merge tag 'pxa-for-4.7' of https://github.com/rjarzmik/linux into fixes

Merge "pxa changes for v4.7 cycle" from Robert Jarzmik:

This is a minor cycle with :
 - cleanup fix from Stephen on clocks (CLK_ROOT deprecated)
 - pin control activation for device-tree platforms

* tag 'pxa-for-4.7' of https://github.com/rjarzmik/linux:
  ARM: pxa: Remove CLK_IS_ROOT
  ARM: pxa: activate pinctrl for device-tree machines

These should have been part of the original pull request but got
accidentally dropped. Both changes in this branch can be considered
bugfixes, so I'm putting them in the fixes branch now.
2016-05-20 20:22:44 +02:00
Rafael J. Wysocki
dab2e29402 Merge back new device properties material for v4.7. 2016-05-06 22:07:33 +02:00
Boris Brezillon
e5b2d30e42 mtd: nand: sharpsl: switch to mtd_ooblayout_ops
Implementing the mtd_ooblayout_ops interface is the new way of exposing
ECC/OOB layout to MTD users.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-05-05 23:51:36 +02:00
Stephen Boyd
e4c740e239 ARM: pxa: Remove CLK_IS_ROOT
This flag is a no-op now (see commit 47b0eeb3dc "clk: Deprecate
CLK_IS_ROOT", 2016-02-02) so remove it.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-04-30 10:27:09 +02:00
Robert Jarzmik
f806dac593 ARM: pxa: activate pinctrl for device-tree machines
Pincontrol is not yet ready for all PXA platforms.
For example, a legacy platform, if PINCTRL was activated, will fail its
calls to gpio_request() or gpio_direction_output(), as the pinctrl
driver might not be available, such as for pxa25x and pxa3xx.

As a step forward, activate pincontrol for all device-tree available
machines, ie. pxa27x device-tree based and pxa3xx device-tree based.

If it appears later that pincontrol is also required for legacy
platforms and if the mfp->pinctrl conversion can be achieved, then
PINCTRL will be activated for the whole PXA architecture.

Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
2016-04-30 10:27:09 +02:00
Heikki Krogerus
f4d0526603 device property: don't bother the drivers with struct property_set
Since device_add_property_set() now always takes a copy of
the property_set, and also since the fwnode type is always
hard coded to be FWNODE_PDATA, there is no need for the
drivers to deliver the entire struct property_set. The
function can just create the instance of it on its own and
bind the properties from the drivers to it on the spot.

This renames device_add_property_set() to
device_add_properties(). The function now takes struct
property_entry as its parameter instead of struct
property_set.

Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-04-09 03:10:50 +02:00
Robert Jarzmik
4c35430ad1 ARM: pxa: fix the number of DMA requestor lines
The number of requestor lines was clamped to 0 for all pxa architectures
in the requestor declaration. Fix this by using the value.

Fixes: 72b195cb71 ("ARM: pxa: add the number of DMA requestor lines")
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
2016-03-29 20:59:18 +02:00
Linus Torvalds
33b3d2e88c ARM: SoC platform updates for v4.6
Newly added support for additional SoCs:
 
 - Axis Artpec-6 SoC family
 - Allwinner A83T SoC
 - Mediatek MT7623
 - NXP i.MX6QP SoC
 - ST Microelectronics stm32f469 microcontroller
 
 New features:
 - SMP support for Mediatek mt2701
 - Big-endian support for NXP i.MX
 - DaVinci now uses the new DMA engine dma_slave_map
 - OMAP now uses the new DMA engine dma_slave_map
 - earlyprintk support for palmchip uart on mach-tango
 - delay timer support for orion
 
 Other:
 - Exynos PMU driver moved out to drivers/soc/
 - Various smaller updates for Renesas, Xilinx, PXA, AT91, OMAP, uniphier
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Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC platform updates from Arnd Bergmann:
 "Newly added support for additional SoCs:
   - Axis Artpec-6 SoC family
   - Allwinner A83T SoC
   - Mediatek MT7623
   - NXP i.MX6QP SoC
   - ST Microelectronics stm32f469 microcontroller

  New features:
   - SMP support for Mediatek mt2701
   - Big-endian support for NXP i.MX
   - DaVinci now uses the new DMA engine dma_slave_map
   - OMAP now uses the new DMA engine dma_slave_map
   - earlyprintk support for palmchip uart on mach-tango
   - delay timer support for orion

  Other:
   - Exynos PMU driver moved out to drivers/soc/
   - Various smaller updates for Renesas, Xilinx, PXA, AT91, OMAP,
     uniphier"

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (83 commits)
  ARM: uniphier: rework SMP code to support new System Bus binding
  ARM: uniphier: add missing of_node_put()
  ARM: at91: avoid defining CONFIG_* symbols in source code
  ARM: DRA7: hwmod: Add data for eDMA tpcc, tptc0, tptc1
  ARM: imx: Make reset_control_ops const
  ARM: imx: Do L2 errata only if the L2 cache isn't enabled
  ARM: imx: select ARM_CPU_SUSPEND only for imx6
  dmaengine: pxa_dma: fix the maximum requestor line
  ARM: alpine: select the Alpine MSI controller driver
  ARM: pxa: add the number of DMA requestor lines
  dmaengine: mmp-pdma: add number of requestors
  dma: mmp_pdma: Add the #dma-requests DT property documentation
  ARM: OMAP2+: Add rtc hwmod configuration for ti81xx
  ARM: s3c24xx: Avoid warning for inb/outb
  ARM: zynq: Move early printk virtual address to vmalloc area
  ARM: DRA7: hwmod: Add custom reset handler for PCIeSS
  ARM: SAMSUNG: Remove unused register offset definition
  ARM: EXYNOS: Cleanup header files inclusion
  drivers: soc: samsung: Enable COMPILE_TEST
  MAINTAINERS: Add maintainers entry for drivers/soc/samsung
  ...
2016-03-20 14:57:08 -07:00
Linus Torvalds
10fdfee7f7 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
 "The most notable item is addition of support for Synaptics RMI4
  protocol which is native protocol for all current Synaptics devices
  (touchscreens, touchpads).  In later releases we'll switch devices
  using HID and PS/2 protocol emulation to RMI4.

  You will also get:
   - BYD PS/2 touchpad protocol support for psmouse
   - MELFAS MIP4 Touchscreen driver
   - rotary encoder was moved away from legacy platform data and to
     generic device properties API, devm_* API, and can now handle
     encoders using more than 2 GPIOs
   - Cypress touchpad driver was switched to devm_* API and device
     properties
   - other assorted driver fixes"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (40 commits)
  ARM: pxa/raumfeld: use PROPERTY_ENTRY_INTEGER to define props
  Input: synaptics-rmi4 - using logical instead of bitwise AND
  Input: powermate - fix oops with malicious USB descriptors
  Input: snvs_pwrkey - fix returned value check of syscon_regmap_lookup_by_phandle()
  MAINTAINERS: add devicetree bindings to Input Drivers section
  Input: synaptics-rmi4 - add device tree support to the SPI transport driver
  Input: synaptics-rmi4 - add SPI transport driver
  Input: synaptics-rmi4 - add support for F30
  Input: synaptics-rmi4 - add support for F12
  Input: synaptics-rmi4 - add device tree support for 2d sensors and F11
  Input: synaptics-rmi4 - add support for 2D sensors and F11
  Input: synaptics-rmi4 - add device tree support for RMI4 I2C devices
  Input: synaptics-rmi4 - add I2C transport driver
  Input: synaptics-rmi4 - add support for Synaptics RMI4 devices
  Input: ad7879 - add device tree support
  Input: ad7879 - fix default x/y axis assignment
  Input: ad7879 - move header to platform_data directory
  Input: ts4800 - add hardware dependency
  Input: cyapa - fix for losing events during device power transitions
  Input: sh_keysc - remove dependency on SUPERH
  ...
2016-03-17 21:51:52 -07:00
Arnd Bergmann
4d2508a559 ARM: pxa/raumfeld: use PROPERTY_ENTRY_INTEGER to define props
gcc-6.0 notices that the use of the property_entry in this file that
was recently introduced cannot work right, as we initialize the wrong
field:

raumfeld.c:387:3: error: the address of 'raumfeld_rotary_encoder_steps' will always evaluate as 'true' [-Werror=address]
   DEV_PROP_U32, 1, &raumfeld_rotary_encoder_steps, },
   ^~~~~~~~~~~~
raumfeld.c:389:3: error: the address of 'raumfeld_rotary_encoder_axis' will always evaluate as 'true' [-Werror=address]
   DEV_PROP_U32, 1, &raumfeld_rotary_encoder_axis, },
   ^~~~~~~~~~~~
raumfeld.c:391:3: error: the address of 'raumfeld_rotary_encoder_relative_axis' will always evaluate as 'true' [-Werror=address]
   DEV_PROP_U32, 1, &raumfeld_rotary_encoder_relative_axis, },
   ^~~~~~~~~~~~

The problem appears to stem from relying on an old definition of
'struct property', but it has changed several times since the code
could have last been correct.

This changes the code to use the PROPERTY_ENTRY_INTEGER() macro instead,
which works fine for the current definition and is a safer way of doing
the initialization.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: a9e340dce3 ("Input: rotary_encoder - move away from platform data structure")
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-15 16:56:46 -07:00
Dmitry Torokhov
245f0db0de Linux 4.5
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Merge tag 'v4.5' into next

Merge with Linux 4.5 to get PROPERTY_ENTRY_INTEGER() that is needed to
fix pxa/raumfeld rotary encoder properties.
2016-03-15 16:54:45 -07:00
Arnd Bergmann
c5418a0b98 usb: gadget: pxa25x_udc: move register definitions from arch
ixp4xx and pxa25x both use this driver and provide a slightly
different set of register definitions for it. Aside from that,
the definition in the ixp4xx-regs.h header conflicts with the
on in the pxa27x device driver when compile-testing that:

In file included from ../drivers/usb/gadget/udc/pxa27x_udc.c:37:0:
../drivers/usb/gadget/udc/pxa27x_udc.h:26:0: warning: "UDCCR" redefined
 #define UDCCR  0x0000  /* UDC Control Register */
 ^
In file included from ../arch/arm/mach-ixp4xx/include/mach/hardware.h:27:0,
                 from ../arch/arm/mach-ixp4xx/include/mach/io.h:18,
                 from ../arch/arm/include/asm/io.h:194,
                 from ../include/linux/io.h:25,
                 from ../include/linux/irq.h:24,
                 from ../drivers/usb/gadget/udc/pxa27x_udc.c:23:
../arch/arm/mach-ixp4xx/include/mach/ixp4xx-regs.h:415:0: note: this is the location of the previous definition
 #define UDCCR  IXP4XX_USB_REG(IXP4XX_USB_BASE_VIRT+0x0000)

This addresses both issues by moving all the definitions into the
pxa25x_udc driver itself. It turns out the only difference between
them was 'UDCCS_IO_ROF', and that could well be a mistake when it
was incorrectly copied from pxa25x to ixp4xx.

Acked-by: Krzysztof Halasa <khalasa@piap.pl>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2016-03-04 15:14:28 +02:00
Dmitry Torokhov
a9e340dce3 Input: rotary_encoder - move away from platform data structure
Drop support for platform data passed via a C-structure and switch to
device properties instead, which should make the driver compatible with all
platforms: OF, ACPI and static boards. Static boards should use property
sets to communicate device parameters to the driver.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-02 15:48:05 -08:00
Dmitry Torokhov
77a8f0ad38 Input: rotary_encoder - convert to use gpiod API
Instead of using old GPIO API, let's switch to GPIOD API, which
automatically handles polarity.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-02 09:31:49 -08:00
Robert Jarzmik
72b195cb71 ARM: pxa: add the number of DMA requestor lines
Declare the number of DMA requestor lines per platform :
 - for pxa25x: 40 requestor lines
 - for pxa27x: 75 requestor lines
 - for pxa3xx: 100 requestor lines

This information will be used to activate the DMA flow control or not.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
2016-02-26 22:57:05 +01:00
Robert Jarzmik
6b9d526b77 ARM: pxa: pxa3xx device-tree support cleanup
Clocks, timer and several other drivers have well defined and working
device-tree bindings. Clean-up the code to leave only the strict
minimum. The final goal will be to remove the lookup array.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
2016-02-20 22:02:55 +01:00
Arnd Bergmann
f29327d908 ARM: pxa: don't select RFKILL if CONFIG_NET is disabled
Bluetooth is only supported when network support is part of the kernel,
so it is a bit pointless to build the tosa-bt support without networking.
If we try anyway, we get a Kconfig warning:

warning: (TOSA_BT && H1940BT) selects RFKILL which has unmet direct dependencies (NET)

This adds a dependency on CONFIG_NET to avoid that case.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
2016-02-01 21:44:33 +01:00
Arnd Bergmann
343c1cdbc8 ARM: pxa: fix building without IWMMXT
When CONFIG_IWMMXT, the pxa3xx and pxa27x suspend/resume code
emits some xscale specific instructions, which are rejected
by the assembler, because gcc is built with -march=armv5
-mtune=xscale and passes that option to the assembler:

/tmp/cciHumzr.s:553: Error: selected processor does not support ARM mode `mra r2,r3,acc0'
/tmp/cciHumzr.s:605: Error: selected processor does not support ARM mode `mar acc0,r2,r3'
make[3]: *** [arch/arm/mach-pxa/pxa3xx.o] Error 1
/tmp/cci5MUNu.s:326: Error: selected processor does not support ARM mode `mra r2,r3,acc0'
/tmp/cci5MUNu.s:367: Error: selected processor does not support ARM mode `mar acc0,r2,r3'
make[3]: *** [arch/arm/mach-pxa/pxa27x.o] Error 1

Overriding with -Wa,-march=xscale no longer works, so instead
I'm adding an explict ".arch_extension" directive in all four inline
assembly statements, which should work even if they end up in a different
order in the assembly output.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
2016-02-01 21:44:29 +01:00
Arnd Bergmann
a9a54caed9 ARM: pxa: move extern declarations to pm.h
When CONFIG_IWMMXT is disabled, we get a warning in pxa3xx.c:

arch/arm/mach-pxa/pxa3xx.c: In function 'pxa3xx_cpu_pm_suspend':
arch/arm/mach-pxa/pxa3xx.c:109:2: error: ISO C90 forbids mixed declarations and code [-Werror=declaration-after-statement]

It turns out that there is an 'extern' declaration in the
middle of a function.

For consistency, this moves the declaration and two others from
the same file into pm.h.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
2016-02-01 21:44:27 +01:00
Arnd Bergmann
55e70147e7 ARM: pxa: don't select GPIO_SYSFS for MIOA701
GPIO_SYSFS is a common kernel functionality, not something
that a board specific Kconfig should have to worry about.
In MIOA701, we get a warning about the select when CONFIG_SYSFS
is disabled:

warning: (MACH_MIOA701) selects GPIO_SYSFS which has unmet direct dependencies (GPIOLIB && SYSFS)

This just removes the select and instead enables the symbol in
the defconfig file.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
2016-02-01 21:44:17 +01:00
Arnd Bergmann
0a137a1a38 ARM: pxa: mark unused eseries code as __maybe_unused
Two variables in eseries.c are used on multiple platforms,
but are not referenced when those are all disabled:

eseries.c:60:31: warning: 'e7xx_gpio_vbus' defined but not used [-Wunused-variable]
eseries.c:129:20: warning: 'eseries_register_clks' defined but not used [-Wunused-function]

Marking them __maybe_unused is the nicest way to ensure
that we never get the warning or end up with missing symbols
if we get it wrong.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
2016-02-01 21:44:12 +01:00
Arnd Bergmann
289873476e ARM: pxa: mark spitz_card_pwr_ctrl as __maybe_unused
This function is only used when CONFIG_PCMCIA is enabled, otherwise
we get a harmless warning:

arch/arm/mach-pxa/spitz.c:204:13: warning: 'spitz_card_pwr_ctrl' defined but not used [-Wunused-function]

Marking it as __maybe_unused keeps the logic simple and avoids the
warning on randconfig builds.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
2016-02-01 21:44:08 +01:00
Arnd Bergmann
ea7743e271 ARM: pxa: define clock registers as __iomem
We should not dereference registers as pointers, so use readl/writel
instead for these registers.

The clock registers are accessed in multiple files, so we have to
change them all at once.

I stumbled over these registers while looking at something unrelated.
There are in fact other registers with the same problem, but I did
not try to address those at this point.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
2016-02-01 21:43:41 +01:00
Linus Torvalds
6b5a12dbca ARM: SoC multiplatform code changes for v4.5
This branch is the culmination of 5 years of effort to bring the ARMv6
 and ARMv7 platforms together such that they can all be enabled and
 boot the same kernel. It has been a tremendous amount of cleanup and
 refactoring by a huge number of people, and creation of several new
 (and major) subsystems to better abstract out all the platform details
 in an appropriate manner.
 
 The bulk of this branch is a large patchset from Arnd that brings several
 of the more minor and older platforms we have closer to multiplatform
 support.  Among these are MMP, S3C64xx, Orion5x, mv78xx0 and realview
 Much of this is moving around header files from old mach directories,
 but there are also some cleanup patches of debug_ll (lowlevel debug
 per-platform options) and other parts.
 
 Linus Walleij also has some patchs to clean up the older ARM Realview
 platforms by finally introducing DT support, and Rob Herring has some
 for ARM Versatile which is now DT-only. Both of these platforms are
 now multiplatform.
 
 Finally, a couple of patches from Russell for Dove PMU, and a fix from
 Valentin Rothberg for Exynos ADC, which were rebased on top of the
 series to avoid conflicts.
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Merge tag 'armsoc-multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC multiplatform code updates from Arnd Bergmann:
 "This branch is the culmination of 5 years of effort to bring the ARMv6
  and ARMv7 platforms together such that they can all be enabled and
  boot the same kernel.  It has been a tremendous amount of cleanup and
  refactoring by a huge number of people, and creation of several new
  (and major) subsystems to better abstract out all the platform details
  in an appropriate manner.

  The bulk of this branch is a large patchset from Arnd that brings
  several of the more minor and older platforms we have closer to
  multiplatform support.  Among these are MMP, S3C64xx, Orion5x, mv78xx0
  and realview Much of this is moving around header files from old mach
  directories, but there are also some cleanup patches of debug_ll
  (lowlevel debug per-platform options) and other parts.

  Linus Walleij also has some patchs to clean up the older ARM Realview
  platforms by finally introducing DT support, and Rob Herring has some
  for ARM Versatile which is now DT-only.  Both of these platforms are
  now multiplatform.

  Finally, a couple of patches from Russell for Dove PMU, and a fix from
  Valentin Rothberg for Exynos ADC, which were rebased on top of the
  series to avoid conflicts"

* tag 'armsoc-multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (75 commits)
  ARM: realview: don't select SMP_ON_UP for UP builds
  ARM: s3c: simplify s3c_irqwake_{e,}intallow definition
  ARM: s3c64xx: fix pm-debug compilation
  iio: exynos-adc: fix irqf_oneshot.cocci warnings
  ARM: realview: build realview-dt SMP support only when used
  ARM: realview: select apropriate targets
  ARM: realview: clean up header files
  ARM: realview: make all header files local
  ARM: no longer make CPU targets visible separately
  ARM: integrator: use explicit core module options
  ARM: realview: enable multiplatform
  ARM: make default platform work for NOMMU
  ARM: debug-ll: move DEBUG_LL_UART_EFM32 to correct Kconfig location
  ARM: defconfig: use correct debug_ll settings
  ARM: versatile: convert to multi-platform
  ARM: versatile: merge mach code into a single file
  ARM: versatile: switch to DT only booting and remove legacy code
  ARM: versatile: add DT based PCI detection
  ARM: pxa: mark ezx structures as __maybe_unused
  ARM: pxa: mark raumfeld init functions as __maybe_unused
  ...
2016-01-20 18:03:56 -08:00
Linus Torvalds
ac53b2e053 MTD updates for v4.5:
Generic MTD
 
  * populate the MTD device 'of_node' field (and get a proper 'of_node' symlink
    in sysfs)
    - This yielded some new helper functions, and changes across a variety of
      drivers
 
  * partitioning cleanups, to prepare for better device-tree based partitioning
    in the future
    - Eliminate a lot of boilerplate for drivers that want to use OF-based
      partition parsing
    - The DT bindings for this didn't settle yet, so most non-cleanup portions
      are deferred for a future release
 
 NAND
 
  * embed a struct mtd_info inside struct nand_chip
    - This is really long overdue; too many drivers have to do the same silly
      boilerplate to allocate and link up two "independent" structs, when in
      fact, everyone is assuming there is an exact 1:1 relationship between a
      NAND chips struct and its underlying MTD. This aids improved helpers and
      should make certain abstractions easier in the future.
    - Also causes a lot of churn, helped along by some automated code
      transformations
 
  * add more core support for detecting (and "correcting") bitflips in erased
    pages; requires opt-in by drivers, but at least we kill a few bad
    implementations and hopefully stave off future ones
 
  * pxa3xx_nand: cleanups, a few fixes, and PM improvements
 
  * new JZ4780 NAND driver
 
 SPI NOR
 
  * provide default erase function, for controllers that just want to send the
    SECTOR_ERASE command directly
 
  * fix some module auto-loading issues with device tree ("jedec,spi-nor")
 
  * error handling fixes
 
  * new Mediatek QSPI flash driver
 
 Other
 
  * cfi: force valid geometry Kconfig (finally!)
    - this one used to trip up randconfigs occasionally, since bots aren't
      deterred by big scary "advanced configuration" menus
 
 More? Probably. See the commit logs.
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Merge tag 'for-linus-20160112' of git://git.infradead.org/linux-mtd

Pull MTD updates from Brian Norris:
 "Generic MTD:

   - populate the MTD device 'of_node' field (and get a proper 'of_node'
     symlink in sysfs)

     This yielded some new helper functions, and changes across a
     variety of drivers

   - partitioning cleanups, to prepare for better device-tree based
     partitioning in the future

     Eliminate a lot of boilerplate for drivers that want to use
     OF-based partition parsing

     The DT bindings for this didn't settle yet, so most non-cleanup
     portions are deferred for a future release

  NAND:

   - embed a struct mtd_info inside struct nand_chip

     This is really long overdue; too many drivers have to do the same
     silly boilerplate to allocate and link up two "independent"
     structs, when in fact, everyone is assuming there is an exact 1:1
     relationship between a NAND chips struct and its underlying MTD.
     This aids improved helpers and should make certain abstractions
     easier in the future.

     Also causes a lot of churn, helped along by some automated code
     transformations

   - add more core support for detecting (and "correcting") bitflips in
     erased pages; requires opt-in by drivers, but at least we kill a
     few bad implementations and hopefully stave off future ones

   - pxa3xx_nand: cleanups, a few fixes, and PM improvements

   - new JZ4780 NAND driver

  SPI NOR:

   - provide default erase function, for controllers that just want to
     send the SECTOR_ERASE command directly

   - fix some module auto-loading issues with device tree
     ("jedec,spi-nor")

   - error handling fixes

   - new Mediatek QSPI flash driver

  Other:

   - cfi: force valid geometry Kconfig (finally!)

     This one used to trip up randconfigs occasionally, since bots
     aren't deterred by big scary "advanced configuration" menus

  More? Probably. See the commit logs"

* tag 'for-linus-20160112' of git://git.infradead.org/linux-mtd: (168 commits)
  mtd: jz4780_nand: replace if/else blocks with switch/case
  mtd: nand: jz4780: Update ecc correction error codes
  mtd: nandsim: use nand_get_controller_data()
  mtd: jz4780_nand: remove useless mtd->priv = chip assignment
  staging: mt29f_spinand: make use of nand_set/get_controller_data() helpers
  mtd: nand: make use of nand_set/get_controller_data() helpers
  ARM: make use of nand_set/get_controller_data() helpers
  mtd: nand: add helpers to access ->priv
  mtd: nand: jz4780: driver for NAND devices on JZ4780 SoCs
  mtd: nand: jz4740: remove custom 'erased check' implementation
  mtd: nand: diskonchip: remove custom 'erased check' implementation
  mtd: nand: davinci: remove custom 'erased check' implementation
  mtd: nand: use nand_check_erased_ecc_chunk in default ECC read functions
  mtd: nand: return consistent error codes in ecc.correct() implementations
  doc: dt: mtd: new binding for jz4780-{nand,bch}
  mtd: cfi_cmdset_0001: fixing memory leak and handling failed kmalloc
  mtd: spi-nor: wait until lock/unlock operations are ready
  mtd: tests: consolidate kmalloc/memset 0 call to kzalloc
  jffs2: use to_delayed_work
  mtd: nand: assign reasonable default name for NAND drivers
  ...
2016-01-13 11:25:54 -08:00
Mauro Carvalho Chehab
c3152592e7 Merge branch 'patchwork' into v4l_for_linus
* patchwork: (204 commits)
  [media] rc: sunxi-cir: Initialize the spinlock properly
  [media] rtl2832: do not filter out slave TS null packets
  [media] rtl2832: print reg number on error case
  [media] rtl28xxu: return demod reg page from driver cache
  [media] coda: enable MPEG-2 ES decoding
  [media] coda: don't start streaming without queued buffers
  [media] coda: hook up vidioc_prepare_buf
  [media] coda: relax coda_jpeg_check_buffer for trailing bytes
  [media] coda: make to_coda_video_device static
  [media] s5p-mfc: remove volatile attribute from MFC register addresses
  [media] s5p-mfc: merge together s5p_mfc_hw_call and s5p_mfc_hw_call_void
  [media] s5p-mfc: use spinlock to protect MFC context
  [media] s5p-mfc: remove unnecessary callbacks
  [media] s5p-mfc: make queue cleanup code common
  [media] s5p-mfc: use one implementation of s5p_mfc_get_new_ctx
  [media] s5p-mfc: constify s5p_mfc_codec_ops structures
  [media] au8522: Avoid memory leak for device config data
  [media] ir-lirc-codec.c: don't leak lirc->drv-rbuf
  [media] uvcvideo: small cleanup in uvc_video_clock_update()
  [media] uvcvideo: Fix reading the current exposure value of UVC
  ...
2016-01-11 11:13:27 -02:00
Arnd Bergmann
d0b6342df0 Merge branch 'fixes' into next/multiplatform
The 'fixes' branch contains d5d4fdd86f ("irqchip/versatile-fpga:
Fix PCI IRQ mapping on Versatile PB") that is required for booting
the versatile platform prior to the rework in this branch, but
including both causes a build-time error.

I'm doing an evil merge here to pull in the fixes branch so we have
that commit included but at the same time revert the trivial change.
This gives us a bisectable history.

* fixes: (22 commits)
  fsl-ifc: add missing include on ARM64
  ls2080a/dts: Add little endian property for GPIO IP block
  dt-bindings: define little-endian property for QorIQ GPIO
  ARM64: dts: ls2080a: fix eSDHC endianness
  ARM: dts: vf610: use reset values for L2 cache latencies
  ARM: pxa: use PWM lookup table for all machines
  ARM: dts: berlin: add 2nd clock for BG2Q sdhci0 and sdhci1
  ARM: dts: berlin: correct BG2Q's sdhci2 2nd clock
  ARM: dts: am4372: fix clock source for arm twd and global timers
  ARM: at91: fix pinctrl driver selection
  ARM: at91/dt: add always-on to 1.8V regulator
  ARM: dts: vf610: fix clock definition for SAI2
  ARM: imx: clk-vf610: fix SAI clock tree
  ARM: ixp4xx: fix read{b,w,l} return types
  irqchip/versatile-fpga: Fix PCI IRQ mapping on Versatile PB
  ARM: OMAP2+: enable REGULATOR_FIXED_VOLTAGE
  ARM: dts: add dm816x missing spi DT dma handles
  ARM: dts: add dm816x missing #mbox-cells
  cpufreq: s3c24xx: Do not mark s3c2410_plls_add as __init
  bus: sunxi-rsb: unlock on error in sunxi_rsb_read()
  ...
2015-12-17 22:33:58 +01:00