Commit Graph

153 Commits

Author SHA1 Message Date
Fabio Estevam 8a83ecd8ec pinctrl: imx: Disallow driver unbind
Performing the 'unbind' operation on pinctrl drivers is
not a sensible usecase, so pass the suppress_bind_attrs
atribute to prevent it.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Link: https://lore.kernel.org/r/20210328183034.555702-2-festevam@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-04-08 16:00:53 +02:00
Fabio Estevam f6b6db2dfd pinctrl: imx: Remove unneeded of_match_ptr()
i.MX is a DT-only platform, so of_match_ptr() can be safely
removed.

Remove the unneeded of_match_ptr().

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Link: https://lore.kernel.org/r/20210328183034.555702-1-festevam@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-04-08 16:00:53 +02:00
Zhaoyu Liu 43878eb7c8 pinctrl: remove empty lines in pinctrl subsystem
Remove all empty lines at the end of functions in pinctrl subsystem,
and make the code neat.

Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Zhaoyu Liu <zackaryliu@yeah.net>
Link: https://lore.kernel.org/r/X98NP6NFK1Afzrgd@manjaro
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-01-05 16:09:24 +01:00
Fabio Estevam 8d1e4f90ce pinctrl: imx21: Remove the driver
Since commit 4b563a0666 ("ARM: imx: Remove imx21 support") the imx21
SoC is no longer supported.

Get rid of its pinctrl driver too, which is now unused.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Acked-by: Shawn Guo <shawnguo@kernel.org>
Link: https://lore.kernel.org/r/20201110190210.29376-1-festevam@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-11-17 22:13:00 +01:00
Anson Huang 7233f7cf4b pinctrl: imx: Support building i.MX pinctrl core driver as module
Change PINCTRL_IMX to tristate to support loadable module build.

And i.MX common pinctrl driver should depend on CONFIG_OF to make sure
no build error when i.MX common pinctrl driver is enabled for different
architectures without CONFIG_OF.

Also add module author, description and license.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Link: https://lore.kernel.org/r/1599552721-24872-3-git-send-email-Anson.Huang@nxp.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-09-29 13:44:36 +02:00
Anson Huang 0080c53428 pinctrl: imx: Support building SCU pinctrl core driver as module
Change PINCTR_IMX_SCU to tristate, add module author, description
and license to support building SCU pinctrl core driver as module.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Link: https://lore.kernel.org/r/1599552721-24872-2-git-send-email-Anson.Huang@nxp.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-09-29 13:44:36 +02:00
Anson Huang 07ae3f0784 pinctrl: imx: Use function callbacks for SCU related functions
Use function callbacks for SCU related functions in pinctrl-imx.c
in order to support the scenario of PINCTRL_IMX is built in while
PINCTRL_IMX_SCU is built as module, all drivers using SCU pinctrl
driver need to initialize the SCU related function callback, and
no need to check CONFIG_PINCTRL_IMX_SCU anymore, hence stub functions
also can be removed.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Link: https://lore.kernel.org/r/1599552721-24872-1-git-send-email-Anson.Huang@nxp.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-09-29 13:44:36 +02:00
Linus Torvalds 9420f1ce01 This is the bulk of the pin control changes for the v5.9
kernel series:
 
 Core changes:
 
 - The GPIO patch "gpiolib: Introduce
   for_each_requested_gpio_in_range() macro" was put in an
   immutable branch and merged into the pinctrl tree as well.
   We see these changes also here.
 
 - Improved debug output for pins used as GPIO.
 
 New drivers:
 
 - Ocelot Sparx5 SoC driver.
 
 - Intel Emmitsburg SoC subdriver.
 
 - Intel Tiger Lake-H SoC subdriver.
 
 - Qualcomm PM660 SoC subdriver.
 
 - Renesas SH-PFC R8A774E1 subdriver.
 
 Driver improvements:
 
 - Linear improvement and cleanups of the Intel drivers for
   Cherryview, Lynxpoint, Baytrail etc. Improved locking among
   other things.
 
 - Renesas SH-PFC has added support for RPC pins, groups, and
   functions to r8a77970 and r8a77980.
 
 - The newere Freescale (now NXP) i.MX8 pin controllers have
   been modularized. This is driven by the Google Android
   GKI initiative I think.
 
 - Open drain support for pins on the Qualcomm IPQ4019.
 
 - The Ingenic driver can handle both edges IRQ detection.
 
 - A big slew of documentation fixes all over the place.
 
 - A few irqchip template conversions by yours truly.
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Merge tag 'pinctrl-v5.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin control updates from Linus Walleij:
 "This is the bulk of the pin control changes for the v5.9 kernel
  series:

  Core changes:

   - The GPIO patch "gpiolib: Introduce for_each_requested_gpio_in_range()
     macro" was put in an immutable branch and merged into the pinctrl
     tree as well. We see these changes also here.

   - Improved debug output for pins used as GPIO.

  New drivers:

   - Ocelot Sparx5 SoC driver.

   - Intel Emmitsburg SoC subdriver.

   - Intel Tiger Lake-H SoC subdriver.

   - Qualcomm PM660 SoC subdriver.

   - Renesas SH-PFC R8A774E1 subdriver.

  Driver improvements:

   - Linear improvement and cleanups of the Intel drivers for
     Cherryview, Lynxpoint, Baytrail etc. Improved locking among other
     things.

   - Renesas SH-PFC has added support for RPC pins, groups, and
     functions to r8a77970 and r8a77980.

   - The newere Freescale (now NXP) i.MX8 pin controllers have been
     modularized. This is driven by the Google Android GKI initiative I
     think.

   - Open drain support for pins on the Qualcomm IPQ4019.

   - The Ingenic driver can handle both edges IRQ detection.

   - A big slew of documentation fixes all over the place.

   - A few irqchip template conversions by yours truly.

* tag 'pinctrl-v5.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (107 commits)
  dt-bindings: pinctrl: add bindings for MediaTek MT6779 SoC
  pinctrl: stmfx: Use irqchip template
  pinctrl: amd: Use irqchip template
  pinctrl: mediatek: fix build for tristate changes
  pinctrl: samsung: Use bank name as irqchip name
  pinctrl: core: print gpio in pins debugfs file
  pinctrl: mediatek: add mt6779 eint support
  pinctrl: mediatek: add pinctrl support for MT6779 SoC
  pinctrl: mediatek: avoid virtual gpio trying to set reg
  pinctrl: mediatek: update pinmux definitions for mt6779
  pinctrl: stm32: use the hwspin_lock_timeout_in_atomic() API
  pinctrl: mcp23s08: Use irqchip template
  pinctrl: sx150x: Use irqchip template
  dt-bindings: ingenic,pinctrl: Support pinmux/pinconf nodes
  pinctrl: intel: Add Intel Emmitsburg pin controller support
  pinctl: ti: iodelay: Replace HTTP links with HTTPS ones
  Revert "gpio: omap: handle pin config bias flags"
  pinctrl: single: Use fallthrough pseudo-keyword
  pinctrl: qcom: spmi-gpio: Use fallthrough pseudo-keyword
  pinctrl: baytrail: Use fallthrough pseudo-keyword
  ...
2020-08-09 12:52:28 -07:00
Anson Huang 614038d628 pinctrl: imx8dxl: Support building as module
Change configuration to "tristate", add module device table,
author, description and license to support building i.MX8DXL
pinctrl driver as module.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Link: https://lore.kernel.org/r/1592979844-18833-10-git-send-email-Anson.Huang@nxp.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-06 15:53:25 +02:00
Anson Huang 36d640fa90 pinctrl: imx8qm: Support building as module
Change configuration to "tristate", add module device table,
author, description and license to support building i.MX8QM
pinctrl driver as module.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Link: https://lore.kernel.org/r/1592979844-18833-9-git-send-email-Anson.Huang@nxp.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-06 15:53:25 +02:00
Anson Huang 3aace899ec pinctrl: imx8qxp: Support building as module
Change configuration to "tristate", add module device table,
author, description and license to support building i.MX8QXP
pinctrl driver as module.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Link: https://lore.kernel.org/r/1592979844-18833-8-git-send-email-Anson.Huang@nxp.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-06 15:53:25 +02:00
Anson Huang d73080c393 pinctrl: imx8mp: Support building as module
Change configuration to "tristate", add module device table,
author, description and license to support building i.MX8MP
pinctrl driver as module.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Link: https://lore.kernel.org/r/1592979844-18833-7-git-send-email-Anson.Huang@nxp.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-06 15:53:25 +02:00
Anson Huang e38b6bb211 pinctrl: imx8mq: Support building as module
Change configuration to "tristate", add module device table,
author, description and license to support building i.MX8MQ
pinctrl driver as module.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Link: https://lore.kernel.org/r/1592979844-18833-6-git-send-email-Anson.Huang@nxp.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-06 15:53:24 +02:00
Anson Huang 4bb63d2166 pinctrl: imx8mn: Support building as module
Change configuration to "tristate", add module device table,
author, description and license to support building i.MX8MN
pinctrl driver as module.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Link: https://lore.kernel.org/r/1592979844-18833-5-git-send-email-Anson.Huang@nxp.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-06 15:53:24 +02:00
Anson Huang a302b0e100 pinctrl: imx8mm: Support building as module
Change configuration to "tristate", add module device table,
author, description and license to support building i.MX8MM
pinctrl driver as module.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Link: https://lore.kernel.org/r/1592979844-18833-4-git-send-email-Anson.Huang@nxp.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-06 15:53:24 +02:00
Anson Huang 0adbfcee61 pinctrl: imx: scu: Support i.MX8 SCU SoCs pinctrl driver built as module
Export necessary APIs to support i.MX8 SCU SoCs pinctrl driver to be
built as module.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Link: https://lore.kernel.org/r/1592979844-18833-3-git-send-email-Anson.Huang@nxp.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-06 15:53:24 +02:00
Anson Huang b4554dee38 pinctrl: imx: Support i.MX8 SoCs pinctrl driver built as module
Export necessary APIs to support i.MX8 SoCs pinctrl driver to be
built as module.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Link: https://lore.kernel.org/r/1592979844-18833-2-git-send-email-Anson.Huang@nxp.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-06 15:53:24 +02:00
Haibo Chen 13f2d25b95 Revert "pinctrl: freescale: imx: Use 'devm_of_iomap()' to avoid a resource leak in case of error in 'imx_pinctrl_probe()'"
This reverts commit ba40324261.

After commit 26d8cde526 ("pinctrl: freescale: imx: add shared
input select reg support"). i.MX7D has two iomux controllers
iomuxc and iomuxc-lpsr which share select_input register for
daisy chain settings.
If use 'devm_of_iomap()', when probe the iomuxc-lpsr, will call
devm_request_mem_region() for the region <0x30330000-0x3033ffff>
for the first time. Then, next time when probe the iomuxc, API
devm_platform_ioremap_resource() will also use the API
devm_request_mem_region() for the share region <0x30330000-0x3033ffff>
again, then cause issue, log like below:

[    0.179561] imx7d-pinctrl 302c0000.iomuxc-lpsr: initialized IMX pinctrl driver
[    0.191742] imx7d-pinctrl 30330000.pinctrl: can't request region for resource [mem 0x30330000-0x3033ffff]
[    0.191842] imx7d-pinctrl: probe of 30330000.pinctrl failed with error -16

Fixes: ba40324261 ("pinctrl: freescale: imx: Use 'devm_of_iomap()' to avoid a resource leak in case of error in 'imx_pinctrl_probe()'")
Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Link: https://lore.kernel.org/r/1591673223-1680-1-git-send-email-haibo.chen@nxp.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-06-20 22:04:39 +02:00
Christophe JAILLET ba40324261 pinctrl: freescale: imx: Use 'devm_of_iomap()' to avoid a resource leak in case of error in 'imx_pinctrl_probe()'
Use 'devm_of_iomap()' instead 'of_iomap()' to avoid a resource leak in
case of error.

Update the error handling code accordingly.

Fixes: 26d8cde526 ("pinctrl: freescale: imx: add shared input select reg support")
Suggested-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20200602200626.677981-1-christophe.jaillet@wanadoo.fr
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-06-03 14:35:41 +02:00
Christophe JAILLET 11d8da5cab pinctrl: freescale: imx: Fix an error handling path in 'imx_pinctrl_probe()'
'pinctrl_unregister()' should not be called to undo
'devm_pinctrl_register_and_init()', it is already handled by the framework.

This simplifies the error handling paths of the probe function.
The 'imx_free_resources()' can be removed as well.

Fixes: a51c158bf0 ("pinctrl: imx: use radix trees for groups and functions")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Link: https://lore.kernel.org/r/20200530204955.588962-1-christophe.jaillet@wanadoo.fr
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-06-03 14:34:21 +02:00
Christophe JAILLET 9eb7283212 pinctrl: imxl: Fix an error handling path in 'imx1_pinctrl_core_probe()'
When 'pinctrl_register()' has been turned into 'devm_pinctrl_register()',
an error handling path has not been updated.

Axe a now unneeded 'pinctrl_unregister()'.

Fixes: e55e025d16 ("pinctrl: imxl: Use devm_pinctrl_register() for pinctrl registration")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/20200530201952.585798-1-christophe.jaillet@wanadoo.fr
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-06-03 14:30:49 +02:00
Dejin Zheng d71ffeb9f2 pinctrl: fix several typos
use codespell to fix lots of typos over frontends.

Signed-off-by: Dejin Zheng <zhengdejin5@gmail.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
CC: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20200421142402.9524-1-zhengdejin5@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-04-28 13:26:49 +02:00
Anson Huang f9a8744dde pinctrl: imx: Add imx8dxl driver
i.MX8DXL contains a system controller that is responsible for controlling
the pad setting of the IPs that are present. Communication between the
host processor running an OS and the system controller happens through
a SCU protocol, add support for the SCU based i.MX8DXL pinctrl driver.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Link: https://lore.kernel.org/r/1585306559-13973-2-git-send-email-Anson.Huang@nxp.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-04-16 14:21:22 +02:00
Linus Torvalds bc3b3f4bfb This is the bulk of pin control changes for the v5.7 kernel cycle.
There are no core changes this time, only driver developments.
 
 - New driver for the Dialog Semiconductor DA9062 Power Management
   Integrated Circuit (PMIC).
 
 - Renesas SH-PFC has improved consistency, with group and
   register checks in the configuration checker.
 
 - New subdriver for the Qualcomm IPQ6018.
 
 - Add the RGMII pin control functionality to Qualcomm IPQ8064.
 
 - Performance and code quality cleanups in the Mediatek
   driver.
 
 - Improve the Broadcom BCM2835 support to cover all the GPIOs
   that exist in it.
 
 - The Allwinner/Sunxi driver properly masks non-wakeup IRQs on
   suspend.
 
 - Add some missing groups and functions to the Ingenic driver.
 
 - Convert some of the Freescale device tree bindings to use the
   new and all improved JSON YAML markup.
 
 - Refactorings and support for the SFIO/GPIO in the Tegra194
   SoC driver.
 
 - Support high impedance mode in the Spreadtrum/Unisoc driver.
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Merge tag 'pinctrl-v5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin control updates from Linus Walleij:
 "This is the bulk of pin control changes for the v5.7 kernel cycle.

  There are no core changes this time, only driver developments:

   - New driver for the Dialog Semiconductor DA9062 Power Management
     Integrated Circuit (PMIC).

   - Renesas SH-PFC has improved consistency, with group and register
     checks in the configuration checker.

   - New subdriver for the Qualcomm IPQ6018.

   - Add the RGMII pin control functionality to Qualcomm IPQ8064.

   - Performance and code quality cleanups in the Mediatek driver.

   - Improve the Broadcom BCM2835 support to cover all the GPIOs that
     exist in it.

   - The Allwinner/Sunxi driver properly masks non-wakeup IRQs on
     suspend.

   - Add some missing groups and functions to the Ingenic driver.

   - Convert some of the Freescale device tree bindings to use the new
     and all improved JSON YAML markup.

   - Refactorings and support for the SFIO/GPIO in the Tegra194 SoC
     driver.

   - Support high impedance mode in the Spreadtrum/Unisoc driver"

* tag 'pinctrl-v5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (64 commits)
  pinctrl: qcom: fix compilation error
  pinctrl: qcom: use scm_call to route GPIO irq to Apps
  pinctrl: sprd: Add pin high impedance mode support
  pinctrl: sprd: Use the correct pin output configuration
  pinctrl: tegra: Add SFIO/GPIO programming on Tegra194
  pinctrl: tegra: Renumber the GG.0 and GG.1 pins
  pinctrl: tegra: Do not add default pin range on Tegra194
  pinctrl: tegra: Pass struct tegra_pmx for pin range check
  pinctrl: tegra: Fix "Scmitt" -> "Schmitt" typo
  pinctrl: tegra: Fix whitespace issues for improved readability
  pinctrl: mediatek: Use scnprintf() for avoiding potential buffer overflow
  pinctrl: freescale: drop the dependency on ARM64 for i.MX8M
  Revert "pinctrl: mvebu: armada-37xx: use use platform api"
  dt-bindings: pinctrl: at91: Fix a typo ("descibe")
  pinctrl: meson: add tsin pinctrl for meson gxbb/gxl/gxm
  pinctrl: sprd: Fix the kconfig warning
  pinctrl: ingenic: add hdmi-ddc pin control group
  pinctrl: sirf/atlas7: Replace zero-length array with flexible-array member
  pinctrl: sprd: Allow the SPRD pinctrl driver building into a module
  pinctrl: Export some needed symbols at module load time
  ...
2020-04-02 15:47:18 -07:00
Peng Fan 492464cd46 pinctrl: freescale: drop the dependency on ARM64 for i.MX8M
Moving to support aarch32 mode on aarch64 hardware, need to drop
the dependency on ARM64 to make the driver could be selected for
ARM32.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Link: https://lore.kernel.org/r/1584070036-26447-2-git-send-email-peng.fan@nxp.com
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-03-26 00:22:42 +01:00
Leonard Crestez 4c48e549f3 pinctrl: imx: scu: Align imx sc msg structs to 4
The imx SC api strongly assumes that messages are composed out of
4-bytes words but some of our message structs have odd sizeofs.

This produces many oopses with CONFIG_KASAN=y.

Fix by marking with __aligned(4).

Fixes: b96eea718b ("pinctrl: fsl: add scu based pinctrl support")
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Link: https://lore.kernel.org/r/bd7ad5fd755739a6d8d5f4f65e03b3ca4f457bd2.1582216144.git.leonard.crestez@nxp.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-02-21 16:33:27 +01:00
Linus Torvalds 6ba3d7066c This is the bulk of pin control changes for the v5.6 kernel cycle:
Core changes:
 
 - Dropped the chained IRQ setup callback into GPIOLIB as we
   got rid of the last users of that in this changeset.
 
 New drivers:
 
 - New driver for Ingenic X1830.
 
 - New driver for Freescale i.MX8MP.
 
 Driver enhancements:
 
 - Fix all remaining Intel drivers to pass their IRQ chips
   along with the GPIO chips.
 
 - Intel Baytrail allocates its irqchip dynamically.
 
 - Intel Lynxpoint is thoroughly rewritten and modernized.
 
 - Aspeed AST2600 pin muxing and configuration is much
   improved.
 
 - Qualcomm SC7180 functions are updated and wakeup interrupt
   map is provided.
 
 - A whole slew of Renesas SH-PFC cleanups and improvements.
 
 - Fix up the Intel DT bindings to use the generic YAML
   DT bindings schema. (A first user of this.)
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Merge tag 'pinctrl-v5.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin control updates from Linus Walleij:
 "This is the bulk of pin control changes, nothing too exciting about
  this.

  Some changes hit arch/sh and arch/arm but are well isolated and
  acknowledged by the respective arch maintainers.

  Core changes:

   - Dropped the chained IRQ setup callback into GPIOLIB as we got rid
     of the last users of that in this changeset.

  New drivers:

   - New driver for Ingenic X1830.

   - New driver for Freescale i.MX8MP.

  Driver enhancements:

   - Fix all remaining Intel drivers to pass their IRQ chips along with
     the GPIO chips.

   - Intel Baytrail allocates its irqchip dynamically.

   - Intel Lynxpoint is thoroughly rewritten and modernized.

   - Aspeed AST2600 pin muxing and configuration is much improved.

   - Qualcomm SC7180 functions are updated and wakeup interrupt map is
     provided.

   - A whole slew of Renesas SH-PFC cleanups and improvements.

   - Fix up the Intel DT bindings to use the generic YAML DT bindings
     schema (a first user of this)"

* tag 'pinctrl-v5.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (99 commits)
  pinctrl: madera: Remove extra blank line
  pinctrl: qcom: Don't lock around irq_set_irq_wake()
  pinctrl: mvebu: armada-37xx: use use platform api
  gpio: Drop the chained IRQ handler assign function
  pinctrl: freescale: Add i.MX8MP pinctrl driver support
  dt-bindings: imx: Add pinctrl binding doc for i.MX8MP
  pinctrl: tigerlake: Tiger Lake uses _HID enumeration
  pinctrl: sunrisepoint: Add Coffee Lake-S ACPI ID
  pinctrl: iproc: Use platform_get_irq_optional() to avoid error message
  pinctrl: dt-bindings: Fix some errors in the lgm and pinmux schema
  pinctrl: intel: Pass irqchip when adding gpiochip
  pinctrl: intel: Add GPIO <-> pin mapping ranges via callback
  pinctrl: baytrail: Replace WARN with dev_info_once when setting direct-irq pin to output
  pinctrl: baytrail: Do not clear IRQ flags on direct-irq enabled pins
  pinctrl: sunrisepoint: Add missing Interrupt Status register offset
  pinctrl: sh-pfc: Split R-Car H3 support in two independent drivers
  pinctrl: artpec6: fix __iomem on reg in set
  pinctrl: ingenic: Use devm_platform_ioremap_resource()
  pinctrl: ingenic: Factorize irq_set_type function
  pinctrl: ingenic: Remove duplicated ingenic_chip_info structures
  ...
2020-01-29 09:51:36 -08:00
Anson Huang eec6d97d6d pinctrl: freescale: Add i.MX8MP pinctrl driver support
Add the pinctrl driver support for i.MX8MP.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Abel Vesa <abel.vesa@nxp.com>
Link: https://lore.kernel.org/r/1579052348-32167-2-git-send-email-Anson.Huang@nxp.com
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-01-23 15:49:39 +01:00
Christoph Hellwig 4bdc0d676a remove ioremap_nocache and devm_ioremap_nocache
ioremap has provided non-cached semantics by default since the Linux 2.6
days, so remove the additional ioremap_nocache interface.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
2020-01-06 09:45:59 +01:00
Krzysztof Kozlowski 2635adb48b pinctrl: Fix Kconfig indentation
Adjust indentation from spaces to tab (+optional two spaces) as in
coding style with command like:
	$ sed -e 's/^        /\t/' -i */Kconfig

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

Link: https://lore.kernel.org/r/1574306382-32516-1-git-send-email-krzk@kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-11-21 15:06:07 +01:00
Nishka Dasgupta bf4b87b0d0 pinctrl: freescale: imx: Add of_node_put() before return
Each iteration of for_each_child_of_node() puts the previous node;
however, in the case of a return from the middle of the loop, there is no
put, thus causing a memory leak. Hence put of_node_put() statements as
required before two mid-loop return statements.
Issue found with Coccinelle.

Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com>
Link: https://lore.kernel.org/r/20190808074720.15754-1-nishkadg.linux@gmail.com
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-08-10 10:29:19 +02:00
Nishka Dasgupta 646d90c3c2 pinctrl: freescale: mxs: Add of_node_put() before return
Each iteration of for_each_child_of_node puts the previous node, but in
the case of a return from the middle of the loop, there is no put, thus
causing a memory leak. Hence add an of_node_put before the return in
three places.
Issue found with Coccinelle.

Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com>
Link: https://lore.kernel.org/r/20190804160420.5309-1-nishkadg.linux@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-08-06 14:52:24 +02:00
Linus Torvalds 43c95d3694 This is the bulk of pin control changes for the v5.3 kernel
cycle:
 
 Core changes:
 
 - Device links can optionally be added between a pin control
   producer and its consumers. This will affect how the system
   power management is handled: a pin controller will not suspend
   before all of its consumers have been suspended. This was
   necessary for the ST Microelectronics STMFX expander and
   need to be tested on other systems as well: it makes sense
   to make this default in the long run. Right now it is
   opt-in per driver.
 
 - Drive strength can be specified in microamps. With decreases
   in silicon technology, milliamps isn't granular enough, let's
   make it possible to select drive strengths in microamps. Right
   now the Meson (AMlogic) driver needs this.
 
 New drivers:
 
 - New subdriver for the Tegra 194 SoC.
 
 - New subdriver for the Qualcomm SDM845.
 
 - New subdriver for the Qualcomm SM8150.
 
 - New subdriver for the Freescale i.MX8MN (Freescale is now a
   product line of NXP).
 
 - New subdriver for Marvell MV98DX1135.
 
 Driver improvements:
 
 - The Bitmain BM1880 driver now supports pin config in
   addition to muxing.
 
 - The Qualcomm drivers can now reserve some GPIOs as taken
   aside and not usable for users. This is used in ACPI systems
   to take out some GPIO lines used by the BIOS so that
   noone else (neither kernel nor userspace) will play with them
   by mistake and crash the machine.
 
 - A slew of refurbishing around the Aspeed drivers (board
   management controllers for servers) in preparation for the
   new Aspeed AST2600 SoC.
 
 - A slew of improvements over the SH PFC drivers as usual.
 
 - Misc cleanups and fixes.
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Merge tag 'pinctrl-v5.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin control updates from Linus Walleij:
 "This is the bulk of pin control changes for the v5.3 kernel cycle:

  Core changes:

   - Device links can optionally be added between a pin control producer
     and its consumers. This will affect how the system power management
     is handled: a pin controller will not suspend before all of its
     consumers have been suspended.

     This was necessary for the ST Microelectronics STMFX expander and
     need to be tested on other systems as well: it makes sense to make
     this default in the long run.

     Right now it is opt-in per driver.

   - Drive strength can be specified in microamps. With decreases in
     silicon technology, milliamps isn't granular enough, let's make it
     possible to select drive strengths in microamps.

     Right now the Meson (AMlogic) driver needs this.

  New drivers:

   - New subdriver for the Tegra 194 SoC.

   - New subdriver for the Qualcomm SDM845.

   - New subdriver for the Qualcomm SM8150.

   - New subdriver for the Freescale i.MX8MN (Freescale is now a product
     line of NXP).

   - New subdriver for Marvell MV98DX1135.

  Driver improvements:

   - The Bitmain BM1880 driver now supports pin config in addition to
     muxing.

   - The Qualcomm drivers can now reserve some GPIOs as taken aside and
     not usable for users. This is used in ACPI systems to take out some
     GPIO lines used by the BIOS so that noone else (neither kernel nor
     userspace) will play with them by mistake and crash the machine.

   - A slew of refurbishing around the Aspeed drivers (board management
     controllers for servers) in preparation for the new Aspeed AST2600
     SoC.

   - A slew of improvements over the SH PFC drivers as usual.

   - Misc cleanups and fixes"

* tag 'pinctrl-v5.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (106 commits)
  pinctrl: aspeed: Strip moved macros and structs from private header
  pinctrl: aspeed: Fix missed include
  pinctrl: baytrail: Use GENMASK() consistently
  pinctrl: baytrail: Re-use data structures from pinctrl-intel.h
  pinctrl: baytrail: Use defined macro instead of magic in byt_get_gpio_mux()
  pinctrl: qcom: Add SM8150 pinctrl driver
  dt-bindings: pinctrl: qcom: Add SM8150 pinctrl binding
  dt-bindings: pinctrl: qcom: Document missing gpio nodes
  pinctrl: aspeed: Add implementation-related documentation
  pinctrl: aspeed: Split out pinmux from general pinctrl
  pinctrl: aspeed: Clarify comment about strapping W1C
  pinctrl: aspeed: Correct comment that is no longer true
  MAINTAINERS: Add entry for ASPEED pinctrl drivers
  dt-bindings: pinctrl: aspeed: Convert AST2500 bindings to json-schema
  dt-bindings: pinctrl: aspeed: Convert AST2400 bindings to json-schema
  dt-bindings: pinctrl: aspeed: Split bindings document in two
  pinctrl: qcom: Add irq_enable callback for msm gpio
  pinctrl: madera: Fixup SPDX headers
  pinctrl: qcom: sdm845: Fix CONFIG preprocessor guard
  pinctrl: tegra: Add bitmask support for parked bits
  ...
2019-07-13 15:02:27 -07:00
Anson Huang d9c238c5a6 pinctrl: freescale: Add i.MX8MN pinctrl driver support
Add the pinctrl driver support for i.MX8MN.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Acked-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-06-25 10:40:23 +02:00
Thomas Gleixner ec8f24b7fa treewide: Add SPDX license identifier - Makefile/Kconfig
Add SPDX license identifiers to all Make/Kconfig files which:

 - Have no license information of any form

These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:

  GPL-2.0-only

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-21 10:50:46 +02:00
Abel Vesa 855811eaeb pinctrl: imx8mq: Add suspend/resume ops
To support pinctl hog restore after LPSR resume back,
add the generic suspend/resume in pinctrl-imx along with the
generic pm ops to be used by platform specific drivers. Then
make use of the newly added ops in i.MX8MQ platform specific
driver.

Signed-off-by: Robin Gong <yibin.gong@nxp.com>
Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Acked-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-04-11 15:41:43 +02:00
Anson Huang e05487d45b pinctrl: freescale: use devm_platform_ioremap_resource() to simplify code
Use the new helper devm_platform_ioremap_resource() which wraps the
platform_get_resource() and devm_ioremap_resource() together, to
simplify the code.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Mukesh Ojha <mojha@codeaurora.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-04-08 13:41:03 +02:00
Dan Carpenter c7df94c64c pinctrl: imx: remove an unnecessary NULL check
The address of "ipctl->pin_regs[pin_id]" can't be NULL.  It's the offset
into an array in the middle of a struct.  This patch removes the check.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-04-08 13:06:30 +02:00
YueHaibing d1ff8d0716 pinctrl: fsl: Make pinctrl_ipc_handle static
Fix sparse warning:

drivers/pinctrl/freescale/pinctrl-scu.c:38:19: warning:
 symbol 'pinctrl_ipc_handle' was not declared. Should it be static?

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Mukesh Ojha <mojha@codeaurora.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-04-04 12:15:36 +07:00
Anders Roxell 9bc8fee96e pinctrl: imx: fix scu link errors
Currently PINCTRL_IMX8QM and PINCTRL_IMX8QXP will select PINCTRL_IMX_SCU.
However, PINCTRL_IMX_SCU may not be valid due to it depends on IMX_MBOX.
Then we may meet the following link errors:
ld: drivers/pinctrl/freescale/pinctrl-scu.o: in function `imx_pinctrl_sc_ipc_init':
pinctrl-scu.c:(.text+0x10): undefined reference to `imx_scu_get_handle'
ld: pinctrl-scu.c:(.text+0x10): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `imx_scu_get_handle'
ld: drivers/pinctrl/freescale/pinctrl-scu.o: in function `imx_pinconf_get_scu':
pinctrl-scu.c:(.text+0xa0): undefined reference to `imx_scu_call_rpc'
ld: pinctrl-scu.c:(.text+0xa0): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `imx_scu_call_rpc'
ld: drivers/pinctrl/freescale/pinctrl-scu.o: in function `imx_pinconf_set_scu':
pinctrl-scu.c:(.text+0x1b4): undefined reference to `imx_scu_call_rpc'
ld: pinctrl-scu.c:(.text+0x1b4): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `imx_scu_call_rpc'
ld: drivers/pinctrl/freescale/pinctrl-imx8qxp.o: in function `imx8qxp_pinctrl_probe':
pinctrl-imx8qxp.c:(.text+0x28): undefined reference to `imx_pinctrl_probe'
ld: pinctrl-imx8qxp.c:(.text+0x28): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `imx_pinctrl_probe'

Rework so that PINCTRL_IMX8QM and PINCTRL_IMX8QXP depends on IMX_SCU
as well in case they're wrongly enabled.

Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-03-08 13:17:24 +01:00
Bai Ping 85e4e6881d pinctrl: freescale: Add imx8mm pinctrl driver support
Add the pinctrl driver support for i.MX8MM.

Signed-off-by: Bai Ping <ping.bai@nxp.com>
Acked-by: Aisheng Dong <aisheng.dong@nxp.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-01-30 10:35:22 +01:00
Aisheng Dong f05c07b05d pinctrl: imx: add imx8qm driver
MX8QM contains a system controller that is responsible for controlling
the pad setting of the IPs that are present. Communication between the
host processor running an OS and the system controller happens through
a SCU protocol. This patch adds the SCU based MX8QM pinctrl driver.

Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Stefan Agner <stefan@agner.ch>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-01-11 09:25:01 +01:00
Abel Vesa b09f629ce3 pinctrl: freescale: Break dependency on SOC_IMX8MQ for i.MX8MQ
The CONFIG_SOC_IMX8MQ will go away, so the dependency can be based on
ARCH_MXC && ARM64.

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Acked-by: Dong Aisheng <aisheng.dong@nxp.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-12-27 10:39:27 +01:00
Guido Günther df50fcf546 pinctrl: imx-scu: Depend on IMX_SCU
Otherwise building fails with only PINCTRL_IMX_SCU selected:

    aarch64-linux-gnu-ld: drivers/pinctrl/freescale/pinctrl-scu.o: in function `imx_pinctrl_sc_ipc_init':
    pinctrl-scu.c:(.text+0x10): undefined reference to `imx_scu_get_handle'
    aarch64-linux-gnu-ld: pinctrl-scu.c:(.text+0x10): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `imx_scu_get_handle'
    aarch64-linux-gnu-ld: drivers/pinctrl/freescale/pinctrl-scu.o: in function `imx_pinconf_get_scu':
    pinctrl-scu.c:(.text+0x64): undefined reference to `imx_scu_call_rpc'
    aarch64-linux-gnu-ld: pinctrl-scu.c:(.text+0x64): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `imx_scu_call_rpc'
    aarch64-linux-gnu-ld: drivers/pinctrl/freescale/pinctrl-scu.o: in function `imx_pinconf_set_scu':
    pinctrl-scu.c:(.text+0x104): undefined reference to `imx_scu_call_rpc'
    aarch64-linux-gnu-ld: pinctrl-scu.c:(.text+0x104): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `imx_scu_call_rpc'
    make: *** [Makefile:1038: vmlinux] Error 1

Signed-off-by: Guido Günther <agx@sigxcpu.or>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-12-27 10:36:30 +01:00
Aisheng Dong a2161fd7c2 pinctrl: imx8qxp: break the dependency on SOC_IMX8QXP
ARM64 SoC does not encourage people to add more finegrained SoC
config options rather than a single ARCH_<family> in arch Kconfig.
So this patch aims to break the dependency on SOC_IMX8QXP.

Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Stefan Agner <stefan@agner.ch>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Acked-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-12-21 11:23:18 +01:00
A.s. Dong 571610678b pinctrl: imx: fix NO_PAD_CTL setting for MMIO pads
After patch b96eea718b ("pinctrl: fsl: add scu based pinctrl support"),
NO_PAD_CTL pads map are not skipped anymore which results in
a possible memory corruption. As we actually only need to create config
maps for SCU pads and MMIO pads which are not using the default config
(a.k.a IMX_NO_PAD_CTL), so let's add a proper check before creating
the config maps. And during MMIO pads parsing, we also need update the
list_p point as SCU case to ensure the pin data next parsed is correct.

Cc: Linus Walleij <linus.walleij@linaro.org>
Fixes: b96eea718b ("pinctrl: fsl: add scu based pinctrl support")
Reported-by: Martin Kaiser <martin@kaiser.cx>
Suggested-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Reviewed-by: Martin Kaiser <martin@kaiser.cx>
Tested-by: Leonard Crestez <leonard.crestez@nxp.com>
Tested-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-11-19 14:51:42 +01:00
A.s. Dong dbffda08f0 pinctrl: fsl: imx7ulp: change to use imx legacy binding
We already had an earlier conclusion that all new i.MX Socs will keep
using the legacy i.MX Pinctrl bindings instead of generic pin config.
However, MX7ULP generic pin config binding support has already been in
tree before that time. Per SoC maintainers' suggestions, in order to
get a better consistency for all i.MX devices, we'd like to go back to
imx legacy binding for MX7ULP as well.

Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Stefan Agner <stefan@agner.ch>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: linux-gpio@vger.kernel.org
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-11-09 10:54:29 +01:00
A.s. Dong 623f788d0e pinctrl: imx: add imx8qxp driver
MX8QXP contains a system controller that is responsible for controlling
the pad setting of the IPs that are present. Communication between the
host processor running an OS and the system controller happens through
a SCU protocol. This patch adds the SCU based MX8QXP pinctrl driver.

Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Stefan Agner <stefan@agner.ch>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-11-05 09:33:32 +01:00
A.s. Dong b96eea718b pinctrl: fsl: add scu based pinctrl support
Some i.MX SoCs (e.g. MX8QXP and MX8QM) contain a system controller
that is responsible for controlling the pad setting of the IPs that
are present. Communication between the host processor running an OS
and the system controller happens through a SCU protocol.

This patch classifies the pad settings into two categories: MMIO and SCU.
For the original MMIO method, no functional changes except organize them
into a few imx_*_mmio() functions. Besides that, we add the SCU based
Pad Mux and Pinconf setting support which are implemented in pinctrl-scu.c.

Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Stefan Agner <stefan@agner.ch>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-11-05 09:33:32 +01:00
Fabio Estevam c98b0d2db7 pinctrl: mxs: do not export mxs_pinctrl_probe
No user of mxs_pinctrl_probe() can be built as a module, hence
exporting the symbol is not necessary. Drop EXPORT_SYMBOL_GPL.

Inspired by a patch from Stefan Agner for the tegra pinctrl driver.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-09-20 15:45:14 -07:00