Commit Graph

1198 Commits

Author SHA1 Message Date
Marc Zyngier
eb9c4dd9bd phy: tegra: xusb: Fix dangling pointer on probe failure
If, for some reason, the xusb PHY fails to probe, it leaves
a dangling pointer attached to the platform device structure.

This would normally be harmless, but the Tegra XHCI driver then
goes and extract that pointer from the PHY device. Things go
downhill from there:

    8.752082] [004d554e5145533c] address between user and kernel address ranges
[    8.752085] Internal error: Oops: 96000004 [#1] PREEMPT SMP
[    8.752088] Modules linked in: max77620_regulator(E+) xhci_tegra(E+) sdhci_tegra(E+) xhci_hcd(E) sdhci_pltfm(E) cqhci(E) fixed(E) usbcore(E) scsi_mod(E) sdhci(E) host1x(E+)
[    8.752103] CPU: 4 PID: 158 Comm: systemd-udevd Tainted: G S      W   E     5.9.0-rc7-00298-gf6337624c4fe #1980
[    8.752105] Hardware name: NVIDIA Jetson TX2 Developer Kit (DT)
[    8.752108] pstate: 20000005 (nzCv daif -PAN -UAO BTYPE=--)
[    8.752115] pc : kobject_put+0x1c/0x21c
[    8.752120] lr : put_device+0x20/0x30
[    8.752121] sp : ffffffc012eb3840
[    8.752122] x29: ffffffc012eb3840 x28: ffffffc010e82638
[    8.752125] x27: ffffffc008d56440 x26: 0000000000000000
[    8.752128] x25: ffffff81eb508200 x24: 0000000000000000
[    8.752130] x23: ffffff81eb538800 x22: 0000000000000000
[    8.752132] x21: 00000000fffffdfb x20: ffffff81eb538810
[    8.752134] x19: 3d4d554e51455300 x18: 0000000000000020
[    8.752136] x17: ffffffc008d00270 x16: ffffffc008d00c94
[    8.752138] x15: 0000000000000004 x14: ffffff81ebd4ae90
[    8.752140] x13: 0000000000000000 x12: ffffff81eb86a4e8
[    8.752142] x11: ffffff81eb86a480 x10: ffffff81eb862fea
[    8.752144] x9 : ffffffc01055fb28 x8 : ffffff81eb86a4a8
[    8.752146] x7 : 0000000000000001 x6 : 0000000000000001
[    8.752148] x5 : ffffff81dff8bc38 x4 : 0000000000000000
[    8.752150] x3 : 0000000000000001 x2 : 0000000000000001
[    8.752152] x1 : 0000000000000002 x0 : 3d4d554e51455300
[    8.752155] Call trace:
[    8.752157]  kobject_put+0x1c/0x21c
[    8.752160]  put_device+0x20/0x30
[    8.752164]  tegra_xusb_padctl_put+0x24/0x3c
[    8.752170]  tegra_xusb_probe+0x8b0/0xd10 [xhci_tegra]
[    8.752174]  platform_drv_probe+0x60/0xb4
[    8.752176]  really_probe+0xf0/0x504
[    8.752179]  driver_probe_device+0x100/0x170
[    8.752181]  device_driver_attach+0xcc/0xd4
[    8.752183]  __driver_attach+0xb0/0x17c
[    8.752185]  bus_for_each_dev+0x7c/0xd4
[    8.752187]  driver_attach+0x30/0x3c
[    8.752189]  bus_add_driver+0x154/0x250
[    8.752191]  driver_register+0x84/0x140
[    8.752193]  __platform_driver_register+0x54/0x60
[    8.752197]  tegra_xusb_init+0x40/0x1000 [xhci_tegra]
[    8.752201]  do_one_initcall+0x54/0x2d0
[    8.752205]  do_init_module+0x68/0x29c
[    8.752207]  load_module+0x2178/0x26c0
[    8.752209]  __do_sys_finit_module+0xb0/0x120
[    8.752211]  __arm64_sys_finit_module+0x2c/0x40
[    8.752215]  el0_svc_common.constprop.0+0x80/0x240
[    8.752218]  do_el0_svc+0x30/0xa0
[    8.752220]  el0_svc+0x18/0x50
[    8.752223]  el0_sync_handler+0x90/0x318
[    8.752225]  el0_sync+0x158/0x180
[    8.752230] Code: a9bd7bfd 910003fd a90153f3 aa0003f3 (3940f000)
[    8.752232] ---[ end trace 90f6c89d62d85ff5 ]---

Reset the pointer on probe failure fixes the issue.

Fixes: 53d2a715c2 ("phy: Add Tegra XUSB pad controller support")
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20201013095820.311376-1-maz@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-10-28 21:42:18 +05:30
Al Cooper
209c805835 phy: usb: Fix incorrect clearing of tca_drv_sel bit in SETUP reg for 7211
The 7211a0 has a tca_drv_sel bit in the USB SETUP register that
should never be enabled. This feature is only used if there is a
USB Type-C PHY, and the 7211 does not have one. If the bit is
enabled, the VBUS signal will never be asserted. In the 7211a0,
the bit was incorrectly defaulted to on so the driver had to clear
the bit. In the 7211c0 the state was inverted so the driver should
no longer clear the bit. This hasn't been a problem because all
current 7211 boards don't use the VBUS signal, but there are some
future customer boards that may use it.

Signed-off-by: Al Cooper <alcooperx@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20201002190115.48017-1-alcooperx@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-10-28 21:40:56 +05:30
Linus Torvalds
00937f36b0 pci-v5.10-changes
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Merge tag 'pci-v5.10-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI updates from Bjorn Helgaas:
 "Enumeration:
   - Print IRQ number used by PCIe Link Bandwidth Notification (Dongdong
     Liu)
   - Add schedule point in pci_read_config() to reduce max latency
     (Jiang Biao)
   - Add Kconfig options for MPS/MRRS strategy (Jim Quinlan)

  Resource management:
   - Fix pci_iounmap() memory leak when !CONFIG_GENERIC_IOMAP (Lorenzo
     Pieralisi)

  PCIe native device hotplug:
   - Reduce noisiness on hot removal (Lukas Wunner)

  Power management:
   - Revert "PCI/PM: Apply D2 delay as milliseconds, not microseconds"
     that was done on the basis of spec typo (Bjorn Helgaas)
   - Rename pci_dev.d3_delay to d3hot_delay to remove D3hot/D3cold
     ambiguity (Krzysztof Wilczyński)
   - Remove unused pcibios_pm_ops (Vaibhav Gupta)

  IOMMU:
   - Enable Translation Blocking for external devices to harden against
     DMA attacks (Rajat Jain)

  Error handling:
   - Add an ACPI APEI notifier chain for vendor CPER records to enable
     device-specific error handling (Shiju Jose)

  ASPM:
   - Remove struct aspm_register_info to simplify code (Saheed O.
     Bolarinwa)

  Amlogic Meson PCIe controller driver:
   - Build as module by default (Kevin Hilman)

  Ampere Altra PCIe controller driver:
   - Add MCFG quirk to work around non-standard ECAM implementation
     (Tuan Phan)

  Broadcom iProc PCIe controller driver:
   - Set affinity mask on MSI interrupts (Mark Tomlinson)

  Broadcom STB PCIe controller driver:
   - Make PCIE_BRCMSTB depend on ARCH_BRCMSTB (Jim Quinlan)
   - Add DT bindings for more Brcmstb chips (Jim Quinlan)
   - Add bcm7278 register info (Jim Quinlan)
   - Add bcm7278 PERST# support (Jim Quinlan)
   - Add suspend and resume pm_ops (Jim Quinlan)
   - Add control of rescal reset (Jim Quinlan)
   - Set additional internal memory DMA viewport sizes (Jim Quinlan)
   - Accommodate MSI for older chips (Jim Quinlan)
   - Set bus max burst size by chip type (Jim Quinlan)
   - Add support for bcm7211, bcm7216, bcm7445, bcm7278 (Jim Quinlan)

  Freescale i.MX6 PCIe controller driver:
   - Use dev_err_probe() to reduce redundant messages (Anson Huang)

  Freescale Layerscape PCIe controller driver:
   - Enforce 4K DMA buffer alignment in endpoint test (Hou Zhiqiang)
   - Add DT compatible strings for ls1088a, ls2088a (Xiaowei Bao)
   - Add endpoint support for ls1088a, ls2088a (Xiaowei Bao)
   - Add endpoint test support for lS1088a (Xiaowei Bao)
   - Add MSI-X support for ls1088a (Xiaowei Bao)

  HiSilicon HIP PCIe controller driver:
   - Handle HIP-specific errors via ACPI APEI (Yicong Yang)

  HiSilicon Kirin PCIe controller driver:
   - Return -EPROBE_DEFER if the GPIO isn't ready (Bean Huo)

  Intel VMD host bridge driver:
   - Factor out physical offset, bus offset, IRQ domain, IRQ allocation
     (Jon Derrick)
   - Use generic PCI PM correctly (Jon Derrick)

  Marvell Aardvark PCIe controller driver:
   - Fix compilation on s390 (Pali Rohár)
   - Implement driver 'remove' function and allow to build it as module
     (Pali Rohár)
   - Move PCIe reset card code to advk_pcie_train_link() (Pali Rohár)
   - Convert mvebu a3700 internal SMCC firmware return codes to errno
     (Pali Rohár)
   - Fix initialization with old Marvell's Arm Trusted Firmware (Pali
     Rohár)

  Microsoft Hyper-V host bridge driver:
   - Fix hibernation in case interrupts are not re-created (Dexuan Cui)

  NVIDIA Tegra PCIe controller driver:
   - Stop checking return value of debugfs_create() functions (Greg
     Kroah-Hartman)
   - Convert to use DEFINE_SEQ_ATTRIBUTE macro (Liu Shixin)

  Qualcomm PCIe controller driver:
   - Reset PCIe to work around Qsdk U-Boot issue (Ansuel Smith)

  Renesas R-Car PCIe controller driver:
   - Add DT documentation for r8a774a1, r8a774b1, r8a774e1 endpoints
     (Lad Prabhakar)
   - Add RZ/G2M, RZ/G2N, RZ/G2H IDs to endpoint test (Lad Prabhakar)
   - Add DT support for r8a7742 (Lad Prabhakar)

  Socionext UniPhier Pro5 controller driver:
   - Add DT descriptions of iATU register (host and endpoint) (Kunihiko
     Hayashi)

  Synopsys DesignWare PCIe controller driver:
   - Add link up check in dw_child_pcie_ops.map_bus() (racy, but seems
     unavoidable) (Hou Zhiqiang)
   - Fix endpoint Header Type check so multi-function devices work (Hou
     Zhiqiang)
   - Skip PCIE_MSI_INTR0* programming if MSI is disabled (Jisheng Zhang)
   - Stop leaking MSI page in suspend/resume (Jisheng Zhang)
   - Add common iATU register support instead of keystone-specific code
     (Kunihiko Hayashi)
   - Major config space access and other cleanups in dwc core and
     drivers that use it (al, exynos, histb, imx6, intel-gw, keystone,
     kirin, meson, qcom, tegra) (Rob Herring)
   - Add multiple PFs support for endpoint (Xiaowei Bao)
   - Add MSI-X doorbell mode in endpoint mode (Xiaowei Bao)

  Miscellaneous:
   - Use fallthrough pseudo-keyword (Gustavo A. R. Silva)
   - Fix "0 used as NULL pointer" warnings (Gustavo Pimentel)
   - Fix "cast truncates bits from constant value" warnings (Gustavo
     Pimentel)
   - Remove redundant zeroing for sg_init_table() (Julia Lawall)
   - Use scnprintf(), not snprintf(), in sysfs "show" functions
     (Krzysztof Wilczyński)
   - Remove unused assignments (Krzysztof Wilczyński)
   - Fix "0 used as NULL pointer" warning (Krzysztof Wilczyński)
   - Simplify bool comparisons (Krzysztof Wilczyński)
   - Use for_each_child_of_node() and for_each_node_by_name() (Qinglang
     Miao)
   - Simplify return expressions (Qinglang Miao)"

* tag 'pci-v5.10-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (147 commits)
  PCI: vmd: Update VMD PM to correctly use generic PCI PM
  PCI: vmd: Create IRQ allocation helper
  PCI: vmd: Create IRQ Domain configuration helper
  PCI: vmd: Create bus offset configuration helper
  PCI: vmd: Create physical offset helper
  PCI: v3-semi: Remove unneeded break
  PCI: dwc: Add link up check in dw_child_pcie_ops.map_bus()
  PCI/ASPM: Remove struct pcie_link_state.l1ss
  PCI/ASPM: Remove struct aspm_register_info.l1ss_cap
  PCI/ASPM: Pass L1SS Capabilities value, not struct aspm_register_info
  PCI/ASPM: Remove struct aspm_register_info.l1ss_ctl1
  PCI/ASPM: Remove struct aspm_register_info.l1ss_ctl2 (unused)
  PCI/ASPM: Remove struct aspm_register_info.l1ss_cap_ptr
  PCI/ASPM: Remove struct aspm_register_info.latency_encoding
  PCI/ASPM: Remove struct aspm_register_info.enabled
  PCI/ASPM: Remove struct aspm_register_info.support
  PCI/ASPM: Use 'parent' and 'child' for readability
  PCI/ASPM: Move LTR path check to where it's used
  PCI/ASPM: Move pci_clear_and_set_dword() earlier
  PCI: dwc: Fix MSI page leakage in suspend/resume
  ...
2020-10-22 12:41:00 -07:00
Linus Torvalds
93b694d096 drm next for 5.10-rc1
New driver:
 Cadence MHDP8546 DisplayPort bridge driver
 
 core:
 - cross-driver scatterlist cleanups
 - devm_drm conversions
 - remove drm_dev_init
 - devm_drm_dev_alloc conversion
 
 ttm:
 - lots of refactoring and cleanups
 
 bridges:
 - chained bridge support in more drivers
 
 panel:
 - misc new panels
 
 scheduler:
 - cleanup priority levels
 
 displayport:
 - refactor i915 code into helpers for nouveau
 
 i915:
 - split into display and GT trees
 - WW locking refactoring in GEM
 - execbuf2 extension mechanism
 - syncobj timeline support
 - GEN 12 HOBL display powersaving
 - Rocket Lake display additions
 - Disable FBC on Tigerlake
 - Tigerlake Type-C + DP improvements
 - Hotplug interrupt refactoring
 
 amdgpu:
 - Sienna Cichlid updates
 - Navy Flounder updates
 - DCE6 (SI) support for DC
 - Plane rotation enabled
 - TMZ state info ioctl
 - PCIe DPC recovery support
 - DC interrupt handling refactor
 - OLED panel fixes
 
 amdkfd:
 - add SMI events for thermal throttling
 - SMI interface events ioctl update
 - process eviction counters
 
 radeon:
 - move to dma_ for allocations
 - expose sclk via sysfs
 
 msm:
 - DSI support for sm8150/sm8250
 - per-process GPU pagetable support
 - Displayport support
 
 mediatek:
 - move HDMI phy driver to PHY
 - convert mtk-dpi to bridge API
 - disable mt2701 tmds
 
 tegra:
 - bridge support
 
 exynos:
 - misc cleanups
 
 vc4:
 - dual display cleanups
 
 ast:
 - cleanups
 
 gma500:
 - conversion to GPIOd API
 
 hisilicon:
 - misc reworks
 
 ingenic:
 - clock handling and format improvements
 
 mcde:
 - DSI support
 
 mgag200:
 - desktop g200 support
 
 mxsfb:
 - i.MX7 + i.MX8M
 - alpha plane support
 
 panfrost:
 - devfreq support
 - amlogic SoC support
 
 ps8640:
 - EDID from eDP retrieval
 
 tidss:
 - AM65xx YUV workaround
 
 virtio:
 - virtio-gpu exported resources
 
 rcar-du:
 - R8A7742, R8A774E1 and R8A77961 support
 - YUV planar format fixes
 - non-visible plane handling
 - VSP device reference count fix
 - Kconfig fix to avoid displaying disabled options in .config
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Merge tag 'drm-next-2020-10-15' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Dave Airlie:
 "Not a major amount of change, the i915 trees got split into display
  and gt trees to better facilitate higher level review, and there's a
  major refactoring of i915 GEM locking to use more core kernel concepts
  (like ww-mutexes). msm gets per-process pagetables, older AMD SI cards
  get DC support, nouveau got a bump in displayport support with common
  code extraction from i915.

  Outside of drm this contains a couple of patches for hexint
  moduleparams which you've acked, and a virtio common code tree that
  you should also get via it's regular path.

  New driver:
   - Cadence MHDP8546 DisplayPort bridge driver

  core:
   - cross-driver scatterlist cleanups
   - devm_drm conversions
   - remove drm_dev_init
   - devm_drm_dev_alloc conversion

  ttm:
   - lots of refactoring and cleanups

  bridges:
   - chained bridge support in more drivers

  panel:
   - misc new panels

  scheduler:
   - cleanup priority levels

  displayport:
   - refactor i915 code into helpers for nouveau

  i915:
   - split into display and GT trees
   - WW locking refactoring in GEM
   - execbuf2 extension mechanism
   - syncobj timeline support
   - GEN 12 HOBL display powersaving
   - Rocket Lake display additions
   - Disable FBC on Tigerlake
   - Tigerlake Type-C + DP improvements
   - Hotplug interrupt refactoring

  amdgpu:
   - Sienna Cichlid updates
   - Navy Flounder updates
   - DCE6 (SI) support for DC
   - Plane rotation enabled
   - TMZ state info ioctl
   - PCIe DPC recovery support
   - DC interrupt handling refactor
   - OLED panel fixes

  amdkfd:
   - add SMI events for thermal throttling
   - SMI interface events ioctl update
   - process eviction counters

  radeon:
   - move to dma_ for allocations
   - expose sclk via sysfs

  msm:
   - DSI support for sm8150/sm8250
   - per-process GPU pagetable support
   - Displayport support

  mediatek:
   - move HDMI phy driver to PHY
   - convert mtk-dpi to bridge API
   - disable mt2701 tmds

  tegra:
   - bridge support

  exynos:
   - misc cleanups

  vc4:
   - dual display cleanups

  ast:
   - cleanups

  gma500:
   - conversion to GPIOd API

  hisilicon:
   - misc reworks

  ingenic:
   - clock handling and format improvements

  mcde:
   - DSI support

  mgag200:
   - desktop g200 support

  mxsfb:
   - i.MX7 + i.MX8M
   - alpha plane support

  panfrost:
   - devfreq support
   - amlogic SoC support

  ps8640:
   - EDID from eDP retrieval

  tidss:
   - AM65xx YUV workaround

  virtio:
   - virtio-gpu exported resources

  rcar-du:
   - R8A7742, R8A774E1 and R8A77961 support
   - YUV planar format fixes
   - non-visible plane handling
   - VSP device reference count fix
   - Kconfig fix to avoid displaying disabled options in .config"

* tag 'drm-next-2020-10-15' of git://anongit.freedesktop.org/drm/drm: (1494 commits)
  drm/ingenic: Fix bad revert
  drm/amdgpu: Fix invalid number of character '{' in amdgpu_acpi_init
  drm/amdgpu: Remove warning for virtual_display
  drm/amdgpu: kfd_initialized can be static
  drm/amd/pm: setup APU dpm clock table in SMU HW initialization
  drm/amdgpu: prevent spurious warning
  drm/amdgpu/swsmu: fix ARC build errors
  drm/amd/display: Fix OPTC_DATA_FORMAT programming
  drm/amd/display: Don't allow pstate if no support in blank
  drm/panfrost: increase readl_relaxed_poll_timeout values
  MAINTAINERS: Update entry for st7703 driver after the rename
  Revert "gpu/drm: ingenic: Add option to mmap GEM buffers cached"
  drm/amd/display: HDMI remote sink need mode validation for Linux
  drm/amd/display: Change to correct unit on audio rate
  drm/amd/display: Avoid set zero in the requested clk
  drm/amdgpu: align frag_end to covered address space
  drm/amdgpu: fix NULL pointer dereference for Renoir
  drm/vmwgfx: fix regression in thp code due to ttm init refactor.
  drm/amdgpu/swsmu: add interrupt work handler for smu11 parts
  drm/amdgpu/swsmu: add interrupt work function
  ...
2020-10-15 10:46:16 -07:00
Greg Kroah-Hartman
168ae5a74b Merge 5.9-rc8 into usb-next
We need the USB fixes in here as well for testing.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-05 08:54:36 +02:00
Pali Rohár
ea17a0f153 phy: marvell: comphy: Convert internal SMCC firmware return codes to errno
Driver ->power_on and ->power_off callbacks leaks internal SMCC firmware
return codes to phy caller. This patch converts SMCC error codes to
standard linux errno codes. Include file linux/arm-smccc.h already provides
defines for SMCC error codes, so use them instead of custom driver defines.
Note that return value is signed 32bit, but stored in unsigned long type
with zero padding.

Tested-by: Tomasz Maciej Nowak <tmn505@gmail.com>
Link: https://lore.kernel.org/r/20200902144344.16684-2-pali@kernel.org
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
2020-10-02 14:29:41 +01:00
Greg Kroah-Hartman
9f76e198dd phy for 5.9
- Core:
    - New PHY attribute for max_link_rate
 
  - New phy drivers:
    - Rockchip dphy driver moved from staging
    - Socionext UniPhier AHCI PHY driver
    - Intel LGM SoC USB phy
    - Intel Keem Bay eMMC PHY driver
 
  - Updates:
    - Support for imx8mp usb phy
    - Support for DP Phy and USB3+DP combo phy in QMP driver
    - Support for Qualcomm sc7180 DP phy
    - Support for cadence torrent PCIe and USB single linke and multilink
      configurations along with USB, SGMII/QSGMII configurations
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Merge tag 'phy-for-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy into usb-next

Vinod writes:

phy for 5.9

 - Core:
   - New PHY attribute for max_link_rate

 - New phy drivers:
   - Rockchip dphy driver moved from staging
   - Socionext UniPhier AHCI PHY driver
   - Intel LGM SoC USB phy
   - Intel Keem Bay eMMC PHY driver

 - Updates:
   - Support for imx8mp usb phy
   - Support for DP Phy and USB3+DP combo phy in QMP driver
   - Support for Qualcomm sc7180 DP phy
   - Support for cadence torrent PCIe and USB single linke and multilink
     configurations along with USB, SGMII/QSGMII configurations

* tag 'phy-for-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy: (72 commits)
  phy: qcom-qmp: initialize the pointer to NULL
  phy: qcom-qmp: Add support for sc7180 DP phy
  phy: qcom-qmp: Add support for DP in USB3+DP combo phy
  phy: qcom-qmp: Use devm_platform_ioremap_resource() to simplify
  phy: qcom-qmp: Get dp_com I/O resource by index
  phy: qcom-qmp: Move 'serdes' and 'cfg' into 'struct qcom_phy'
  phy: qcom-qmp: Remove 'initialized' in favor of 'init_count'
  phy: qcom-qmp: Move phy mode into struct qmp_phy
  dt-bindings: phy: qcom,qmp-usb3-dp: Add DP phy information
  dt-bindings: phy: ti,phy-j721e-wiz: fix bindings for torrent phy
  dt-bindings: phy: cdns,torrent-phy: add reset-names
  phy: rockchip-dphy-rx0: Include linux/delay.h
  phy: fix USB_LGM_PHY warning & build errors
  phy: cadence-torrent: Add USB + SGMII/QSGMII multilink configuration
  phy: cadence-torrent: Add PCIe + USB multilink configuration
  phy: cadence-torrent: Add single link USB register sequences
  phy: cadence-torrent: Add single link SGMII/QSGMII register sequences
  phy: cadence-torrent: Configure PHY_PLL_CFG as part of link_cmn_vals
  phy: cadence-torrent: Add PHY link configuration sequences for single link
  phy: cadence-torrent: Add clk changes for multilink configuration
  ...
2020-10-02 13:45:00 +02:00
Vinod Koul
60f5a24c11 phy: qcom-qmp: initialize the pointer to NULL
Smatch complains:
drivers/phy/qualcomm/phy-qcom-qmp.c:3899 qcom_qmp_phy_probe() error: uninitialized symbol 'dp_cfg'.
drivers/phy/qualcomm/phy-qcom-qmp.c:3900 qcom_qmp_phy_probe() error: uninitialized symbol 'dp_serdes'.
drivers/phy/qualcomm/phy-qcom-qmp.c:3902 qcom_qmp_phy_probe() error: uninitialized symbol 'usb_cfg'.

This is a warning but not a practical one as dp_cfg, dp_serdes and
usb_cfg will be set and used when valid. So we can set the pointers to
NULL to quiesce the warnings.

Fixes: 52e013d0bf ("phy: qcom-qmp: Add support for DP in USB3+DP combo phy")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20201001070911.140019-1-vkoul@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-10-01 13:06:40 +05:30
Greg Kroah-Hartman
25b9e4b31e phy: Second round of fixes for 5.9
*) Fix of leak in TI phy driver
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Merge tag 'phy-fixes-2-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy into usb-linus

Vinod writes:

phy: Second round of fixes for 5.9

*) Fix of leak in TI phy driver

* tag 'phy-fixes-2-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy:
  phy: ti: am654: Fix a leak in serdes_am654_probe()
2020-09-29 17:21:54 +02:00
Dave Airlie
06c14f5c2d Mediatek DRM Next for Linux 5.10
1. Move Mediatek HDMI PHY driver from DRM folder to PHY folder
 2. Convert mtk-dpi to drm_bridge API
 3. Disable tmds on mt2701
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Merge tag 'mediatek-drm-next-5.10' of https://git.kernel.org/pub/scm/linux/kernel/git/chunkuang.hu/linux into drm-next

Mediatek DRM Next for Linux 5.10

1. Move Mediatek HDMI PHY driver from DRM folder to PHY folder
2. Convert mtk-dpi to drm_bridge API
3. Disable tmds on mt2701

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200914231227.30500-1-chunkuang.hu@kernel.org
2020-09-29 10:26:44 +10:00
Stephen Boyd
7612f4e2bc phy: qcom-qmp: Add support for sc7180 DP phy
Add the necessary compatible strings and phy data for the sc7180 USB3+DP
combo phy.

Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Cc: Jeykumar Sankaran <jsanka@codeaurora.org>
Cc: Chandan Uddaraju <chandanu@codeaurora.org>
Cc: Vara Reddy <varar@codeaurora.org>
Cc: Tanmay Shah <tanmay@codeaurora.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Manu Gautam <mgautam@codeaurora.org>
Cc: Sandeep Maheswaram <sanm@codeaurora.org>
Cc: Douglas Anderson <dianders@chromium.org>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Jonathan Marek <jonathan@marek.ca>
Cc: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Cc: Rob Clark <robdclark@chromium.org>
Link: https://lore.kernel.org/r/20200609034623.10844-1-tanmay@codeaurora.org
Link: https://lore.kernel.org/r/20200916231202.3637932-9-swboyd@chromium.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-28 11:27:53 +05:30
Stephen Boyd
52e013d0bf phy: qcom-qmp: Add support for DP in USB3+DP combo phy
Add support for the USB3 + DisplayPort (DP) "combo" phy to the qmp phy
driver. We already have support for the USB3 part of the combo phy, so
most additions are for the DP phy.

Split up the qcom_qmp_phy{enable,disable}() functions into the phy init,
power on, power off, and exit functions that the common phy framework
expects so that the DP phy can add even more phy ops like
phy_calibrate() and phy_configure(). This allows us to initialize the DP
PHY and configure the AUX channel before powering on the PHY at the link
rate that was negotiated during link training.

The general design is as follows:

  1) DP controller calls phy_init() to initialize the PHY and configure
  the dp_com register region.

  2) DP controller calls phy_configure() to tune the link rate and
  voltage swing and pre-emphasis settings.

  3) DP controller calls phy_power_on() to enable the PLL and power on
  the phy.

  4) DP controller calls phy_configure() again to tune the voltage swing
  and pre-emphasis settings determind during link training.

  5) DP controller calls phy_calibrate() some number of times to change
  the aux settings if the aux channel times out during link training.

  6) DP controller calls phy_power_off() if the link rate is to be
  changed and goes back to step 2 to try again at a different link rate.

  5) DP controller calls phy_power_off() and then phy_exit() to power
  down the PHY when it is done.

The DP PHY contains a PLL that is different from the one used for the
USB3 PHY. Instead of a pipe clk there is a link clk and a pixel clk
output from the DP PLL after going through various dividers. Introduce
clk ops for these two clks that just tell the child clks what the
frequency of the pixel and link are. When the phy link rate is
configured we call clk_set_rate() to update the child clks in the
display clk controller on what rate is in use. The clk frequencies
always differ based on the link rate (i.e. 1.6Gb/s 2.7Gb/s, 5.4Gb/s, or
8.1Gb/s corresponding to various transmission modes like HBR1, HBR2 or
HBR3) so we simply store the link rate and use that to calculate the clk
frequencies.

The PLL enable sequence is a little different from other QMP phy PLLs so
we power on the PLL in qcom_qmp_phy_configure_dp_phy() that gets called
from phy_power_on(). This should probably be split out better so that
each phy has a way to run the final PLL/PHY enable sequence.

This code is based on a submission of this phy and PLL in the drm
subsystem.

Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Cc: Jeykumar Sankaran <jsanka@codeaurora.org>
Cc: Chandan Uddaraju <chandanu@codeaurora.org>
Cc: Vara Reddy <varar@codeaurora.org>
Cc: Tanmay Shah <tanmay@codeaurora.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Manu Gautam <mgautam@codeaurora.org>
Cc: Sandeep Maheswaram <sanm@codeaurora.org>
Cc: Douglas Anderson <dianders@chromium.org>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Jonathan Marek <jonathan@marek.ca>
Cc: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Cc: Rob Clark <robdclark@chromium.org>
Link: https://lore.kernel.org/r/20200609034623.10844-1-tanmay@codeaurora.org
Link: https://lore.kernel.org/r/20200916231202.3637932-8-swboyd@chromium.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-28 11:27:53 +05:30
Stephen Boyd
f385b73192 phy: qcom-qmp: Use devm_platform_ioremap_resource() to simplify
We can use the wrapper API here to save some lines and remove the need
for the 'base' and 'res' local variable.

Suggested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Cc: Jeykumar Sankaran <jsanka@codeaurora.org>
Cc: Chandan Uddaraju <chandanu@codeaurora.org>
Cc: Vara Reddy <varar@codeaurora.org>
Cc: Tanmay Shah <tanmay@codeaurora.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Manu Gautam <mgautam@codeaurora.org>
Cc: Sandeep Maheswaram <sanm@codeaurora.org>
Cc: Douglas Anderson <dianders@chromium.org>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Jonathan Marek <jonathan@marek.ca>
Cc: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Cc: Rob Clark <robdclark@chromium.org>
Link: https://lore.kernel.org/r/20200916231202.3637932-7-swboyd@chromium.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-28 11:27:53 +05:30
Stephen Boyd
dab7b10ddc phy: qcom-qmp: Get dp_com I/O resource by index
The dp_com resource is always at index 1 according to the dts files in
the kernel. Get this resource by index so that we don't need to make
future additions to the DT binding use 'reg-names'.

Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Cc: Jeykumar Sankaran <jsanka@codeaurora.org>
Cc: Chandan Uddaraju <chandanu@codeaurora.org>
Cc: Vara Reddy <varar@codeaurora.org>
Cc: Tanmay Shah <tanmay@codeaurora.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Manu Gautam <mgautam@codeaurora.org>
Cc: Sandeep Maheswaram <sanm@codeaurora.org>
Cc: Douglas Anderson <dianders@chromium.org>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Jonathan Marek <jonathan@marek.ca>
Cc: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Cc: Rob Clark <robdclark@chromium.org>
Link: https://lore.kernel.org/r/20200916231202.3637932-6-swboyd@chromium.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-28 11:27:53 +05:30
Stephen Boyd
aa968cb1a6 phy: qcom-qmp: Move 'serdes' and 'cfg' into 'struct qcom_phy'
The serdes I/O region is where the PLL for the phy is controlled.
Sometimes the PLL is shared between multiple phys, for example in the
PCIe case where there are three phys inside the same wrapper. Other
times the PLL is for a single phy, i.e. some USB3 phys. To complete the
trifecta we have the USB3+DP combo phy where the USB3 and DP phys each
have their own serdes region because they have their own PLL while they
both share a common I/O region pertaining to the USB type-c pinout and
cable orientation.

Let's move the serdes iomem pointer into 'struct qmp_phy' so that we can
correlate PLL control to the phy that uses it. This allows us to support
the USB3+DP combo phy in this driver. This isn't a problem for the
3-lane/phy PCIe phy because there is a common init function that is the
only place the serdes region is programmed.

Furthermore, move the configuration data that contains most of the
register programming sequences to the qmp phy struct. This data isn't
qmp wrapper specific. It is phy specific data used to tune various
settings for things like pre-emphasis, bias, etc.

Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Cc: Jeykumar Sankaran <jsanka@codeaurora.org>
Cc: Chandan Uddaraju <chandanu@codeaurora.org>
Cc: Vara Reddy <varar@codeaurora.org>
Cc: Tanmay Shah <tanmay@codeaurora.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Manu Gautam <mgautam@codeaurora.org>
Cc: Sandeep Maheswaram <sanm@codeaurora.org>
Cc: Douglas Anderson <dianders@chromium.org>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Jonathan Marek <jonathan@marek.ca>
Cc: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Cc: Rob Clark <robdclark@chromium.org>
Link: https://lore.kernel.org/r/20200916231202.3637932-5-swboyd@chromium.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-28 11:27:53 +05:30
Stephen Boyd
e4bc7de8ae phy: qcom-qmp: Remove 'initialized' in favor of 'init_count'
We already track if any phy inside the qmp wrapper has been initialized
by means of the struct qcom_qmp::init_count member. Let's drop the
duplicate 'initialized' member to simplify the code a bit.

Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Jeykumar Sankaran <jsanka@codeaurora.org>
Cc: Chandan Uddaraju <chandanu@codeaurora.org>
Cc: Vara Reddy <varar@codeaurora.org>
Cc: Tanmay Shah <tanmay@codeaurora.org>
Cc: Manu Gautam <mgautam@codeaurora.org>
Cc: Sandeep Maheswaram <sanm@codeaurora.org>
Cc: Douglas Anderson <dianders@chromium.org>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Jonathan Marek <jonathan@marek.ca>
Cc: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Cc: Rob Clark <robdclark@chromium.org>
Link: https://lore.kernel.org/r/20200916231202.3637932-4-swboyd@chromium.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-28 11:27:53 +05:30
Stephen Boyd
dadcf9959c phy: qcom-qmp: Move phy mode into struct qmp_phy
The phy mode pertains to the phy itself, i.e. 'struct qmp_phy', not the
wrapper, i.e. 'struct qcom_qmp'. Move the phy mode into the phy
structure to more accurately reflect what is going on. This also cleans
up 'struct qcom_qmp' so that it can eventually be the place where qmp
wrapper wide data is located, paving the way for the USB3+DP combo phy.

Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Jeykumar Sankaran <jsanka@codeaurora.org>
Cc: Chandan Uddaraju <chandanu@codeaurora.org>
Cc: Vara Reddy <varar@codeaurora.org>
Cc: Tanmay Shah <tanmay@codeaurora.org>
Cc: Manu Gautam <mgautam@codeaurora.org>
Cc: Sandeep Maheswaram <sanm@codeaurora.org>
Cc: Douglas Anderson <dianders@chromium.org>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Jonathan Marek <jonathan@marek.ca>
Cc: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Cc: Rob Clark <robdclark@chromium.org>
Link: https://lore.kernel.org/r/20200916231202.3637932-3-swboyd@chromium.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-28 11:27:53 +05:30
Tomasz Figa
488e3f52a8 phy: rockchip-dphy-rx0: Include linux/delay.h
Fix an implicit declaration of usleep_range():

drivers/phy/rockchip/phy-rockchip-dphy-rx0.c: In function 'rk_dphy_enable':
drivers/phy/rockchip/phy-rockchip-dphy-rx0.c:203:2: error: implicit declaration of function 'usleep_range' [-Werror=implicit-function-declaration]

Fixes: 32abcc4491 ("media: staging: phy-rockchip-dphy-rx0: add Rockchip MIPI Synopsys DPHY RX0 driver")
Signed-off-by: Tomasz Figa <tfiga@chromium.org>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20200921225618.52529-1-tfiga@chromium.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-22 19:44:04 +05:30
Randy Dunlap
9b1e52137b phy: fix USB_LGM_PHY warning & build errors
Fix a Kconfig warning that is causing lots of build errors
when USB_SUPPORT is not set.

USB_PHY depends on USB_SUPPORT but "select" doesn't care about
dependencies, so this driver should also depend on USB_SUPPORT.
It should not select USB_SUPPORT.

WARNING: unmet direct dependencies detected for USB_PHY
  Depends on [n]: USB_SUPPORT [=n]
  Selected by [m]:
  - USB_LGM_PHY [=m]

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Li Yin <yin1.li@intel.com>
Cc: Vadivel Murugan R <vadivel.muruganx.ramuthevar@linux.intel.com>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Vinod Koul <vkoul@kernel.org>
Link: https://lore.kernel.org/r/d1dd0ddd-3143-5777-1c63-195e1a32f237@infradead.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-22 19:41:43 +05:30
Tomi Valkeinen
92ffad62a6 New phy attributes slated for kernel release v5.10
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Merge tag 'phy-attrs-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy into 5.10/dp-pull

New phy attributes slated for kernel release v5.10. These are needed by
the Cadence MHDP driver.
2020-09-18 15:14:35 +03:00
Swapnil Jakhade
6fd428f780 phy: cadence-torrent: Add USB + SGMII/QSGMII multilink configuration
Add USB + SGMII/QSGMII multilink configuration sequences.

Signed-off-by: Swapnil Jakhade <sjakhade@cadence.com>
Link: https://lore.kernel.org/r/1600327846-9733-14-git-send-email-sjakhade@cadence.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-18 10:47:22 +05:30
Swapnil Jakhade
4acea473f3 phy: cadence-torrent: Add PCIe + USB multilink configuration
Add PCIe + USB Unique SSC multilink configuration sequences.

Signed-off-by: Swapnil Jakhade <sjakhade@cadence.com>
Link: https://lore.kernel.org/r/1600327846-9733-13-git-send-email-sjakhade@cadence.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-18 10:47:22 +05:30
Swapnil Jakhade
9855d84b6b phy: cadence-torrent: Add single link USB register sequences
Add support for single link USB configuration.

Signed-off-by: Swapnil Jakhade <sjakhade@cadence.com>
Link: https://lore.kernel.org/r/1600327846-9733-12-git-send-email-sjakhade@cadence.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-18 10:47:21 +05:30
Swapnil Jakhade
9f33b76a35 phy: cadence-torrent: Add single link SGMII/QSGMII register sequences
Add support for single link SGMII/QSGMII configuration.

Signed-off-by: Swapnil Jakhade <sjakhade@cadence.com>
Link: https://lore.kernel.org/r/1600327846-9733-11-git-send-email-sjakhade@cadence.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-18 10:47:21 +05:30
Swapnil Jakhade
d66a636669 phy: cadence-torrent: Configure PHY_PLL_CFG as part of link_cmn_vals
Include PHY_PLL_CFG as a first register value to configure in
link_cmn_vals array values.

Signed-off-by: Swapnil Jakhade <sjakhade@cadence.com>
Link: https://lore.kernel.org/r/1600327846-9733-10-git-send-email-sjakhade@cadence.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-18 10:47:21 +05:30
Swapnil Jakhade
cd9aa94737 phy: cadence-torrent: Add PHY link configuration sequences for single link
Add support to configure link_cmn_vals and xcvr_diag_vals in case of single
link PHY configuration.

Signed-off-by: Swapnil Jakhade <sjakhade@cadence.com>
Link: https://lore.kernel.org/r/1600327846-9733-9-git-send-email-sjakhade@cadence.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-18 10:47:20 +05:30
Swapnil Jakhade
07084c9566 phy: cadence-torrent: Add clk changes for multilink configuration
Prepare and enable clock in probe instead of phy_init.
Also, remove phy_exit callback.

Signed-off-by: Swapnil Jakhade <sjakhade@cadence.com>
Link: https://lore.kernel.org/r/1600327846-9733-8-git-send-email-sjakhade@cadence.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-18 10:47:20 +05:30
Swapnil Jakhade
f0f1fa0458 phy: cadence-torrent: Update PHY reset for multilink configuration
For multilink configuration, deassert PHY and link reset after PHY
registers are configured in probe and only check link status in
power_on callback.

Signed-off-by: Swapnil Jakhade <sjakhade@cadence.com>
Link: https://lore.kernel.org/r/1600327846-9733-7-git-send-email-sjakhade@cadence.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-18 10:47:20 +05:30
Swapnil Jakhade
6bcf3cb300 phy: cadence-torrent: Add support for PHY multilink configuration
Added support for multilink configuration of Torrent PHY. Currently,
maximum two links are supported. In case of multilink configuration,
PHY needs to be configured for both the protocols simultaneously at
the beginning as per the requirement of Torrent PHY.
Also, register sequences for PCIe + SGMII/QSGMII Unique SSC PHY multilink
configurations are added.

Signed-off-by: Swapnil Jakhade <sjakhade@cadence.com>
Link: https://lore.kernel.org/r/1600327846-9733-6-git-send-email-sjakhade@cadence.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-18 10:47:19 +05:30
Swapnil Jakhade
15c6a048e5 phy: cadence-torrent: Add PHY APB reset support
Add support for PHY APB reset and make it optional.

Signed-off-by: Swapnil Jakhade <sjakhade@cadence.com>
Link: https://lore.kernel.org/r/1600327846-9733-4-git-send-email-sjakhade@cadence.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-18 10:47:19 +05:30
Swapnil Jakhade
8e4c95b9c9 phy: cadence-torrent: Check cmn_ready assertion during PHY power on
Check if cmn_ready is set after both PLL0 and PLL1 are locked.

Signed-off-by: Swapnil Jakhade <sjakhade@cadence.com>
Link: https://lore.kernel.org/r/1600327846-9733-3-git-send-email-sjakhade@cadence.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-18 10:47:18 +05:30
Swapnil Jakhade
b54b47bd03 phy: cadence-torrent: Add single link PCIe support
Add single link PCIe register sequences in Torrent PHY driver.
Also, add support for getting SSC type from DT.

Signed-off-by: Swapnil Jakhade <sjakhade@cadence.com>
Link: https://lore.kernel.org/r/1600327846-9733-2-git-send-email-sjakhade@cadence.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-18 10:47:18 +05:30
Swapnil Jakhade
d09945eaca phy: cadence-torrent: Check total lane count for all subnodes is within limit
Add checking if total number of lanes for all subnodes is not greater than
number of lanes supported by PHY.

Signed-off-by: Swapnil Jakhade <sjakhade@cadence.com>
Link: https://lore.kernel.org/r/1600280911-9214-6-git-send-email-sjakhade@cadence.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-18 10:34:47 +05:30
Swapnil Jakhade
2e70c84995 phy: cadence-torrent: Add separate regmap functions for torrent and DP
Added separate functions for regmap initialization of torrent PHY
generic registers and DP specific registers.

Signed-off-by: Swapnil Jakhade <sjakhade@cadence.com>
Link: https://lore.kernel.org/r/1600280911-9214-5-git-send-email-sjakhade@cadence.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-18 10:34:47 +05:30
Swapnil Jakhade
7c12b46c63 phy: cadence-torrent: Enable support for multiple subnodes
Enable support for multiple subnodes in torrent PHY to
include multi-link combinations.

Signed-off-by: Swapnil Jakhade <sjakhade@cadence.com>
Link: https://lore.kernel.org/r/1600280911-9214-4-git-send-email-sjakhade@cadence.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-18 10:34:47 +05:30
Swapnil Jakhade
46d205af30 phy: cadence-torrent: Use devm_platform_ioremap_resource() to get reg addresses
Use devm_platform_ioremap_resource() to get register addresses instead of
boilerplate code.

Signed-off-by: Swapnil Jakhade <sjakhade@cadence.com>
Link: https://lore.kernel.org/r/1600280911-9214-3-git-send-email-sjakhade@cadence.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-18 10:34:46 +05:30
Swapnil Jakhade
29d1fd2f2c phy: cadence-torrent: Use of_device_get_match_data() to get driver data
Use of_device_get_match_data() to get driver data instead of boilerplate
code.

Signed-off-by: Swapnil Jakhade <sjakhade@cadence.com>
Link: https://lore.kernel.org/r/1600280911-9214-2-git-send-email-sjakhade@cadence.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-18 10:34:46 +05:30
Wan Ahmad Zainie
885c4f4d6c phy: intel: Add Keem Bay eMMC PHY support
Add support for eMMC PHY on Intel Keem Bay SoC.

Signed-off-by: Wan Ahmad Zainie <wan.ahmad.zainie.wan.mohamad@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200913235522.4316-4-wan.ahmad.zainie.wan.mohamad@intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-16 17:45:19 +05:30
Wan Ahmad Zainie
fa687038ba phy: intel: Rename phy-intel to phy-intel-lgm
Rename phy-intel-{combo,emmc}.c to phy-intel-lgm-{combo,emmc}.c
to make drivers/phy/intel directory more generic for future use.

Signed-off-by: Wan Ahmad Zainie <wan.ahmad.zainie.wan.mohamad@intel.com>
Reviewed-by: Ramuthevar Vadivel Murugan <vadivel.muruganx.ramuthevar@linux.intel.com>
Link: https://lore.kernel.org/r/20200913235522.4316-2-wan.ahmad.zainie.wan.mohamad@intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-16 17:45:19 +05:30
Rikard Falkeborn
57d39c7697 phy: cadence: torrent: Constify regmap_config structs
The regmap_config structs are never modified and can be made const to
allow the compiler to put them in read-only memory.

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Link: https://lore.kernel.org/r/20200912204639.501669-4-rikard.falkeborn@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-16 17:43:31 +05:30
Rikard Falkeborn
2f4a3d8b7c phy: cadence: salvo: Constify cdns_nxp_sequence_pair
cdns_nxp_sequence_pair[] are never modified and can be made const to allow
the compiler to put them in read-only memory.

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Reviewed-by: Peter Chen <peter.chen@nxp.com>
Link: https://lore.kernel.org/r/20200912204639.501669-3-rikard.falkeborn@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-16 17:43:31 +05:30
Rikard Falkeborn
3cfb0e8e41 phy: cadence: Sierra: Constify static structs
The static cdns_reg_pairs and regmap_config structs are not modified and
can be made const. This allows the compiler to put them in read-only
memory.

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Link: https://lore.kernel.org/r/20200912204639.501669-2-rikard.falkeborn@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-16 17:43:31 +05:30
Vinod Koul
5408b22043 Merge branch 'topic/phy_attrs' into next 2020-09-16 17:38:33 +05:30
Swapnil Jakhade
0ffcc3787e phy: cadence-torrent: Set Torrent PHY attributes
Set Torrent PHY attributes bus_width, max_link_rate and mode
for DisplayPort.

Signed-off-by: Swapnil Jakhade <sjakhade@cadence.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Link: https://lore.kernel.org/r/1599805114-22063-3-git-send-email-sjakhade@cadence.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-16 17:38:02 +05:30
chunhui dai
09e872d558 drm/mediatek: Disable tmds on mt2701
Without that patch if you use specific resolutions like 1280x1024,
I can see distortion in the output. It seems as if the
frequency for updating the pixel of the image is out of sync.

For initialization tmds needs to be active, but can be disabled after init
to fix blurry display

Signed-off-by: chunhui dai <chunhui.dai@mediatek.com>
Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
Tested-by: Frank Wunderlich <frank-w@public-files.de>
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
2020-09-14 23:05:23 +08:00
Ramuthevar Vadivel Murugan
1cce8f73a5 phy: Add USB3 PHY support for Intel LGM SoC
Add support for USB PHY on Intel LGM SoC.

Signed-off-by: Ramuthevar Vadivel Murugan <vadivel.muruganx.ramuthevar@linux.intel.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Link: https://lore.kernel.org/r/20200828022312.52724-3-vadivel.muruganx.ramuthevar@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-11 17:12:49 +05:30
Dan Carpenter
850280156f phy: ti: am654: Fix a leak in serdes_am654_probe()
If devm_phy_create() fails then we need to call of_clk_del_provider(node)
to undo the call to of_clk_add_provider().

Fixes: 71e2f5c5c2 ("phy: ti: Add a new SERDES driver for TI's AM654x SoC")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20200905124648.GA183976@mwanda
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-08 16:23:09 +05:30
Grygorii Strashko
7f78322cdd phy: ti: gmii-sel: retrieve ports number and base offset from dt
On K3 AM654x/J721E platforms the Port MII mode selection register(s) have
similar format and placed in the System Control Module (SCM) module
sequentially as one register per port, but, depending SOC and CPSW
instance, the base offset and number of ports can be different.

Hence, add possibility to retrieve number of ports and base registers
offset from DT and support for max possible number of ports supported by K3
SoCs like J721E.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Link: https://lore.kernel.org/r/20200828201943.29155-4-grygorii.strashko@ti.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-08 15:53:10 +05:30
Grygorii Strashko
d3fa20b97c phy: ti: gmii-sel: use features mask during init
Use features mask during PHYs initialization to simplify code.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Link: https://lore.kernel.org/r/20200828201943.29155-3-grygorii.strashko@ti.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-08 15:53:10 +05:30
Grygorii Strashko
15819a6c9a phy: ti: gmii-sel: move phy init in separate function
Move phy initialization in separate function to improve code readability
and simplify future changes.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Link: https://lore.kernel.org/r/20200828201943.29155-2-grygorii.strashko@ti.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-08 15:53:10 +05:30