Commit Graph

4795 Commits

Author SHA1 Message Date
Qinglang Miao
5608215665 pinctrl: spear: simplify the return expression of tvc_connect()
Simplify the return expression.

Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Link: https://lore.kernel.org/r/20200921131058.92941-1-miaoqinglang@huawei.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-09-29 15:26:25 +02:00
Liu Shixin
43b7229ef8 pinctrl: spear: simplify the return expression of spear310_pinctrl_probe
Simplify the return expression.

Signed-off-by: Liu Shixin <liushixin2@huawei.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Link: https://lore.kernel.org/r/20200921082448.2591929-1-liushixin2@huawei.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-09-29 15:25:26 +02:00
Liu Shixin
da2ab12f99 pinctrl: sprd: use module_platform_driver to simplify the code
module_platform_driver() makes the code simpler by eliminating
boilerplate code.

Signed-off-by: Liu Shixin <liushixin2@huawei.com>
Acked-by: Chunyan Zhang <zhang.lyra@gmail.com>
Link: https://lore.kernel.org/r/20200914065402.3726408-1-liushixin2@huawei.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-09-29 14:53:11 +02:00
周琰杰 (Zhou Yanjie)
f4b5c348d6 pinctrl: Ingenic: Add I2S pins support for Ingenic SoCs.
1.Add I2S pins support for the JZ4780 SoC.
2.Add I2S pins support for the X1000 SoC.
3.Add I2S pins support for the X1500 SoC.
4.Add I2S pins support for the X1830 SoC.

Signed-off-by: 周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com>
Reviewed-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20200913065836.12156-4-zhouyanjie@wanyeetech.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-09-29 14:47:29 +02:00
周琰杰 (Zhou Yanjie)
d9f5dc4952 pinctrl: Ingenic: Correct the pullup and pulldown parameters of JZ4780.
Correct the pullup and pulldown parameters of JZ4780 to make them
consistent with the parameters on the datasheet.

Signed-off-by: 周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com>
Reviewed-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20200913065836.12156-3-zhouyanjie@wanyeetech.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-09-29 14:47:29 +02:00
周琰杰 (Zhou Yanjie)
d3ef8c6b22 pinctrl: Ingenic: Add SSI pins support for JZ4770 and JZ4780.
Add SSI pins support for the JZ4770 SoC and the
JZ4780 SoC from Ingenic.

Signed-off-by: 周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com>
Reviewed-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20200913065836.12156-2-zhouyanjie@wanyeetech.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-09-29 14:47:29 +02:00
Andrew Jeffery
05c0a8a9fe pinctrl: aspeed-g6: Add bias controls for 1.8V GPIO banks
These were skipped in the original patches adding pinconf support for
the AST2600.

Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Cc: Johnny Huang <johnny_huang@aspeedtech.com>
Link: https://lore.kernel.org/r/20200910025631.2996342-4-andrew@aj.id.au
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-09-29 14:38:44 +02:00
Andrew Jeffery
1d6db5ae6b pinctrl: aspeed: Use the right pinconf mask
The Aspeed pinconf data structures are split into 'conf' and 'map'
types, where the 'conf' struct defines which register and bitfield to
manipulate, while the 'map' struct defines what value to write to
the register and bitfield.

Both structs have a mask member, and the wrong mask was being used to
tell the regmap which bits to update.

A todo is to look at whether we can remove the mask from the 'map'
struct.

Fixes: 5f52c85384 ("pinctrl: aspeed: Use masks to describe pinconf bitfields")
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Cc: Johnny Huang <johnny_huang@aspeedtech.com>
Link: https://lore.kernel.org/r/20200910025631.2996342-3-andrew@aj.id.au
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-09-29 14:38:44 +02:00
Andrew Jeffery
7e8d8ac78f pinctrl: aspeed: Format pinconf debug consistent with pinmux
When displaying which pinconf register and field is being touched,
format the field mask so that it's consistent with the way the pinmux
portion formats the mask.

Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Link: https://lore.kernel.org/r/20200910025631.2996342-2-andrew@aj.id.au
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-09-29 14:38:44 +02:00
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
Fabien Parent
82d70627e9 pinctrl: mediatek: Add MT8167 Pinctrl driver
This commit adds the pinctrl driver for the MediaTek's MT8167 SoC.

Signed-off-by: Fabien Parent <fparent@baylibre.com>
Link: https://lore.kernel.org/r/20200907110221.1691168-2-fparent@baylibre.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-09-27 11:20:09 +02:00
Linus Walleij
5b398f8fc1 intel-pinctrl for v5.10-1
* Add last part of cleanup Cherryview driver to align with other drivers
 * Due to above clean up Cherryview and Baytrail drivers to use common API
 
 The following is an automated git shortlog grouped by driver:
 
 baytrail:
  -  Switch to use intel_pinctrl_get_soc_data()
 
 cherryview:
  -  Preserve CHV_PADCTRL1_INVRXTX_TXDATA flag on GPIOs
  -  Switch to use intel_pinctrl_get_soc_data()
  -  Utilize temporary variable to hold device pointer
  -  Switch to use struct intel_pinctrl
  -  Move custom community members to separate data struct
  -  Drop stale comment
 
 intel:
  -  Update header block to reflect direct dependencies
  -  Extract intel_pinctrl_get_soc_data() helper for wider use
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Merge tag 'intel-pinctrl-v5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pinctrl/intel into devel

intel-pinctrl for v5.10-1

* Add last part of cleanup Cherryview driver to align with other drivers
* Due to above clean up Cherryview and Baytrail drivers to use common API

The following is an automated git shortlog grouped by driver:

baytrail:
 -  Switch to use intel_pinctrl_get_soc_data()

cherryview:
 -  Preserve CHV_PADCTRL1_INVRXTX_TXDATA flag on GPIOs
 -  Switch to use intel_pinctrl_get_soc_data()
 -  Utilize temporary variable to hold device pointer
 -  Switch to use struct intel_pinctrl
 -  Move custom community members to separate data struct
 -  Drop stale comment

intel:
 -  Update header block to reflect direct dependencies
 -  Extract intel_pinctrl_get_soc_data() helper for wider use
2020-09-21 23:44:41 +02:00
Linus Walleij
e777f8c8f9 pinctrl: renesas: Updates for v5.10
- Add CAN and USB1 PWEN pin groups on R-Car H2 and RZ/G1,
   - Three more conversion of DT bindings to json-schema,
   - Group all Renesas pinctrl drivers and improve visual Kconfig
     structure,
   - Rename drivers/pinctrl/sh-pfc to drivers/pinctrl/renesas,
   - Minor fixes and improvements.
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Merge tag 'renesas-pinctrl-for-v5.10-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into devel

pinctrl: renesas: Updates for v5.10

  - Add CAN and USB1 PWEN pin groups on R-Car H2 and RZ/G1,
  - Three more conversion of DT bindings to json-schema,
  - Group all Renesas pinctrl drivers and improve visual Kconfig
    structure,
  - Rename drivers/pinctrl/sh-pfc to drivers/pinctrl/renesas,
  - Minor fixes and improvements.
2020-09-21 23:43:30 +02:00
Geert Uytterhoeven
540d9757ce pinctrl: renesas: Reintroduce SH_PFC for common sh-pfc code
Most, but not all, Renesas pin control drivers use the "sh-pfc" pin
control framework.  As of commit 8449bfa9e6a9f7ec ("pinctrl: sh-pfc:
Collect Renesas related CONFIGs in one place"), the code for this
framework is always built when Renesas SoC pin control support is
enabled, regardless of whether the enabled pin control drivers need it
or not.

Fix this by reintroducing the CONFIG_SH_PFC symbol to control inclusion
of the "sh-pfc" framework and its dependencies, and selecting it when
needed.

This reduces kernel size of a typical RZ/A1 or RZ/A2 kernel by more than
6 resp. 11 KiB.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20200909131534.12897-4-geert+renesas@glider.be
2020-09-15 10:04:35 +02:00
Geert Uytterhoeven
077365a941 pinctrl: Rename sh-pfc to renesas
The drivers/pinctrl/sh-pfc subdirectory was originally created to group
pin control drivers for various Renesas SuperH and SH-Mobile platforms.
However, the name "sh-pfc" no longer reflects its contents, as the
directory now contains pin control drivers for Renesas SuperH, ARM32,
and ARM64 SoCs.

Hence rename the subdirectory from drivers/pinctrl/sh-pfc to
drivers/pinctrl/renesas, and the related Kconfig symbol from
PINCTRL_SH_PFC to PINCTRL_RENESAS.

Rename the git branch in MAINTAINERS, too, for consistency.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20200909131534.12897-3-geert+renesas@glider.be
2020-09-15 10:04:35 +02:00
Geert Uytterhoeven
1308fb4e4e pinctrl: rzn1: Do not select GENERIC_PIN{CTRL_GROUPS,MUX_FUNCTIONS}
The RZ/N1 pin control driver does not use pin groups or pin functions,
so there is no need to select GENERIC_PINCTRL_GROUPS or
GENERIC_PINMUX_FUNCTIONS.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20200909131534.12897-2-geert+renesas@glider.be
2020-09-15 10:04:35 +02:00
Geert Uytterhoeven
a4eb6afa7c pinctrl: rza1: Switch to using "output-enable"
For pins requiring software driven IO output operations, the RZ/A1 Pin
Controller uses either the "output-high" or "output-low" DT property to
enable the corresponding output buffer.  The actual line value doesn't
matter, as it is ignored.

Commit 425562429d ("pinctrl: generic: Add output-enable property")
introduced a new DT property for this specific use case.

Update the RZ/A1 Pin Controller DT bindings and driver to use this new
property instead.  Preserve backwards compatibility with old DTBs in the
driver, as this comes at a very small cost.

Notes:
  - The DT binding examples already used the new property,
  - There are no upstream users of the old properties.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Chris Brandt <chris.brandt@renesas.com>
Acked-by: Jacopo Mondi <jacopo@jmondi.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200821111401.4021-1-geert+renesas@glider.be
2020-09-15 09:37:20 +02:00
Kuninori Morimoto
d89a08f52b pinctrl: sh-pfc: Tidy up driver description title
Sort each driver by description title in alphabetical order.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87h7ssy4qy.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2020-09-15 09:37:20 +02:00
Kuninori Morimoto
16261dcd7c pinctrl: sh-pfc: Align driver description title
Now, Renesas Pin Control drivers are under menu, but current
descriptions are not aligned.
This patch aligns them.

    - RZ/A2 gpio and pinctrl driver
    - RZ/N1 pinctrl driver
    - Emma Mobile EV2 pin control support
    - R-Mobile APE6 pin control support
    - R-Mobile A1 pin control support
    - RZ/G1H pin control support
    - RZ/G1M pin control support

    + pin control support for RZ/A2
    + pin control support for RZ/N1
    + pin control support for Emma Mobile EV2
    + pin control support for R-Mobile APE6
    + pin control support for R-Mobile A1
    + pin control support for RZ/G1H
    + pin control support for RZ/G1M

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87imd8y4r2.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2020-09-15 09:37:20 +02:00
Kuninori Morimoto
af028ecd54 pinctrl: sh-pfc: Collect Renesas related CONFIGs in one place
Renesas related pinctrl CONFIGs are located in many places, which is
confusing.
This patch collects them into the same place, grouped in a new "Renesas
pinctrl drivers" menu.
This patch also moves pinctrl-rz{a1,a2,n1}.c into the sh-pfc folder.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87k0xoy4r7.wl-kuninori.morimoto.gx@renesas.com
[geert: Update path in MAINTAINERS]
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2020-09-15 09:37:20 +02:00
Kuninori Morimoto
aa5b0f7e0f pinctrl: sh-pfc: Tidy up Emma Mobile EV2
It is "Emma Mobile EV2" not "AV2".
This patch tidies it up.

Reported-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87lfi4y4re.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2020-09-15 09:37:20 +02:00
Thierry Reding
84f28fc38d pinctrl: devicetree: Keep deferring even on timeout
driver_deferred_probe_check_state() may return -ETIMEDOUT instead of
-EPROBE_DEFER after all built-in drivers have been probed. This can
cause issues for built-in drivers that depend on resources provided by
loadable modules.

One such case happens on Tegra where I2C controllers are used during
early boot to set up the system PMIC, so the I2C driver needs to be a
built-in driver. At the same time, some instances of the I2C controller
depend on the DPAUX hardware for pinmuxing. Since the DPAUX is handled
by the display driver, which is usually not built-in, the pin control
states will not become available until after the root filesystem has
been mounted and the display driver loaded from it.

Fixes: bec6c0ecb2 ("pinctrl: Remove use of driver_deferred_probe_check_state_continue()")
Suggested-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20200825143348.1358679-1-thierry.reding@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-09-12 18:19:53 +02:00
Martin DEVERA
6d8e04f9d3 pinctrl: sx150x: Fix pinctrl enablement order bug
I encountered bug in SX1502 expander driver in 5.7.7. Here is relevant
DTS part:

compatible = "semtech,sx1502q";
gpio4_cfg_pins: gpio2-cfg {
                         pins = "gpio5";
                         output-high;
     };

And part of OOPS:

[    0.673996] [<c023cfa6>] (gpiochip_get_data) from [<c023b235>]
(sx150x_gpio_direction_output+0xd)
[    0.683259] [<c023b235>] (sx150x_gpio_direction_output) from
[<c023b363>] (sx150x_pinconf_set+0x)
[    0.692796] [<c023b363>] (sx150x_pinconf_set) from [<c0238fef>]
(pinconf_apply_setting+0x39/0x7e)
[    0.701635] [<c0238fef>] (pinconf_apply_setting) from [<c0236c77>]
(pinctrl_commit_state+0xa5/0x)
[    0.710648] [<c0236c77>] (pinctrl_commit_state) from [<c0237e03>]
(pinctrl_enable+0xff/0x1d4)
[    0.719139] [<c0237e03>] (pinctrl_enable) from [<c023b791>]
(sx150x_probe+0x1a3/0x358)
[    0.727027] [<c023b791>] (sx150x_probe) from [<c02c38bf>]
(i2c_device_probe+0x1bb/0x1dc)

The problem is that sx150x_pinconf_set uses sx150x_gpio_direction_output
but gpio is not setup yet. Patch below fixes it but I'm not sure whether
is it correct.

Link: https://lore.kernel.org/r/f32130bf-cfd4-b1bf-538c-dbc9ee2d947a@eaxlabs.cz
Signed-off-by: Martin DEVERA <devik@eaxlabs.cz>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-09-12 18:11:09 +02:00
Heiko Stuebner
0662e4a190 pinctrl: rockchip: depend on OF
The Rockchip pinctrl driver needs to handle information from Devicetree
so only makes sense getting compiled on systems with CONFIG_OF enabled.

This also fixes a problem found by the "kernel-test-robot" when compiling
the driver on test-builds that do not have CONFIG_OF enabled:

  drivers/pinctrl/pinctrl-rockchip.c: In function 'rockchip_pinctrl_parse_groups':
>> drivers/pinctrl/pinctrl-rockchip.c:2881:9: error: implicit declaration of function 'pinconf_generic_parse_dt_config'; did you mean 'pinconf_generic_dump_config'? [-Werror=implicit-function-declaration]
    2881 |   ret = pinconf_generic_parse_dt_config(np_config, NULL,
         |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
         |         pinconf_generic_dump_config
   drivers/pinctrl/pinctrl-rockchip.c: In function 'rockchip_gpiolib_register':
>> drivers/pinctrl/pinctrl-rockchip.c:3473:5: error: 'struct gpio_chip' has no member named 'of_node'
    3473 |   gc->of_node = bank->of_node;

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>
Link: https://lore.kernel.org/r/20200905214955.907950-1-heiko@sntech.de
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-09-12 13:20:42 +02:00
Yangtao Li
473436e764 pinctrl: sunxi: add support for the Allwinner A100 pin controller
This commit introduces support for the pin controller on A100.

Signed-off-by: Yangtao Li <frank@allwinnertech.com>
Acked-by: Maxime Ripard <mripard@kernel.org>
Link: https://lore.kernel.org/r/4e331a2ed4a30c883df6157bc5c52bb686aa8e0d.1595572867.git.frank@allwinnertech.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-09-12 12:35:42 +02:00
Nobuhiro Iwamatsu
a68a784426 pinctrl: visconti: Add Toshiba Visconti SoCs pinctrl support
Add pinctrl support to Toshiba Visconti SoCs.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>
Reviewed-by: Punit Agrawal <punit1.agrawal@toshiba.co.jp>
Link: https://lore.kernel.org/r/20200909204336.2558-3-nobuhiro1.iwamatsu@toshiba.co.jp
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-09-12 12:25:53 +02:00
Rikard Falkeborn
8a643cc8d5 pinctrl: actions: pinctrl-s900: Constify s900_padinfo[]
The only usage of s900_padinfo[] is to assign it to the padinfo field in
the owl_pinctrl_soc_data struct, which is a const pointer. Make it const
to allow the compiler to put it in read-only memory.

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20200830224311.36994-4-rikard.falkeborn@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-09-12 12:15:19 +02:00
Rikard Falkeborn
d01afb7115 pinctrl: actions: pinctrl-s700: Constify s700_padinfo[]
The only usage of s700_padinfo[] is to assign it to the padinfo field in
the owl_pinctrl_soc_data struct, which is a const pointer. Make it const
to allow the compiler to put it in read-only memory.

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20200830224311.36994-3-rikard.falkeborn@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-09-12 12:15:19 +02:00
Rikard Falkeborn
8e2f830aca pinctrl: actions: pinctrl-owl: Constify owl_pinctrl_ops and owl_pinmux_ops
The only usage of owl_pinctrl_ops and owl_pinmux_ops is to assign their
addresses to the pctlops and the pmxops fields in the pinctrl_desc struct,
which are const pointers. Make them const to allow the compiler to put them
in read-only memory.

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20200830224311.36994-2-rikard.falkeborn@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-09-12 12:15:19 +02:00
Thomas Preston
b9b7fb2943 pinctrl: mcp23s08: Fix mcp23x17 precious range
On page 23 of the datasheet [0] it says "The register remains unchanged
until the interrupt is cleared via a read of INTCAP or GPIO." Include
INTCAPA and INTCAPB registers in precious range, so that they aren't
accidentally cleared when we read via debugfs.

[0] https://ww1.microchip.com/downloads/en/DeviceDoc/20001952C.pdf

Fixes: 8f38910ba4 ("pinctrl: mcp23s08: switch to regmap caching")
Signed-off-by: Thomas Preston <thomas.preston@codethink.co.uk>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20200828213226.1734264-3-thomas.preston@codethink.co.uk
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-09-12 11:31:19 +02:00
Thomas Preston
b445f62377 pinctrl: mcp23s08: Fix mcp23x17_regmap initialiser
The mcp23x17_regmap is initialised with structs named "mcp23x16".
However, the mcp23s08 driver doesn't support the MCP23016 device yet, so
this appears to be a typo.

Fixes: 8f38910ba4 ("pinctrl: mcp23s08: switch to regmap caching")
Signed-off-by: Thomas Preston <thomas.preston@codethink.co.uk>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20200828213226.1734264-2-thomas.preston@codethink.co.uk
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-09-12 11:31:19 +02:00
Hans de Goede
a0bf06dc51 pinctrl: cherryview: Preserve CHV_PADCTRL1_INVRXTX_TXDATA flag on GPIOs
One some devices the GPIO should output the inverted value from what
device-drivers / ACPI code expects. The reason for this is unknown,
perhaps these systems use an external buffer chip on the GPIO which
inverts the signal. The BIOS makes this work by setting the
CHV_PADCTRL1_INVRXTX_TXDATA flag.

Before this commit we would unconditionally clear all INVRXTX flags,
including the CHV_PADCTRL1_INVRXTX_TXDATA flag when a GPIO is requested
by a driver (from chv_gpio_request_enable()).

This breaks systems using this setup. Specifically it is causing
problems for systems with a goodix touchscreen, where the BIOS sets the
INVRXTX_TXDATA flag on the GPIO used for the touchscreen's reset pin.

The goodix touchscreen driver by defaults configures this pin as input
(relying on the pull-up to keep it high), but the clearing of the
INVRXTX_TXDATA flag done by chv_gpio_request_enable() causes it to be
driven low for a brief time before the GPIO gets set to input mode.

This causes the touchscreen controller to get reset. On most CHT devs
with this touchscreen this leads to:

[   31.596534] Goodix-TS i2c-GDIX1001:00: i2c test failed attempt 1: -121

The driver retries this though and then everything is fine. But during
reset the touchscreen uses its interrupt pin as bootstrap to determine
which i2c address to use and on the Acer One S1003 the spurious reset
caused by the clearing of the INVRXTX_TXDATA flag causes the controller
to come back up again on the wrong i2c address, breaking things.

This commit fixes both the -121 errors, as well as the total breakage
on the Acer One S1003, by making chv_gpio_clear_triggering() not clear
the INVRXTX_TXDATA flag if the pin is already configured as a GPIO.

Note that chv_pinmux_set_mux() does still unconditionally clear the
flag, so this only affects GPIO usage.

Fixes: a7d4b17166 ("Input: goodix - add support for getting IRQ + reset GPIOs on Cherry Trail devices")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-09-07 11:57:19 +03:00
Lad Prabhakar
bbf369d4e5 pinctrl: sh-pfc: r8a7790: Add CAN pins, groups and functions
Add pins, groups and functions for the CAN{0,1} interface.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Chris Paterson <Chris.Paterson2@renesas.com>
Link: https://lore.kernel.org/r/20200825095448.13093-1-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2020-08-31 09:29:43 +02:00
Andy Shevchenko
ebc2599144 pinctrl: mcp23s08: Improve error messaging in ->probe()
Print particular message in each of error case in the ->probe().
While here, use dev_err_probe() for that.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200828103235.78380-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-08-28 16:41:15 +02:00
Zhiyong Tao
d32f38f2a8 pinctrl: mediatek: Add pinctrl driver for mt8192
This commit includes pinctrl driver for mt8192.

Signed-off-by: Zhiyong Tao <zhiyong.tao@mediatek.com>
Acked-by: Sean Wang <sean.wang@kernel.org>
Link: https://lore.kernel.org/r/20200817001702.1646-4-zhiyong.tao@mediatek.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-08-27 10:50:57 +02:00
Cristian Ciocaltea
45de28e31a pinctrl: actions: Add Actions S500 pinctrl driver
Add pinctrl and gpio driver for Actions Semi S500 SoC.

The driver supports pinctrl, pinmux, pinconf, gpio and interrupt
functions using a set of registers shared between gpio and pinctrl.

Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@gmail.com>
Link: https://lore.kernel.org/r/ce11c15f2f72798a8d740f8a7d5cbf1e6d70974a.1596461275.git.cristian.ciocaltea@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-08-27 10:40:13 +02:00
Bartosz Dudziak
db436a7198 pinctrl: qcom: Add msm8226 pinctrl driver.
Add initial Qualcomm msm8226 pinctrl driver to support pin configuration
with pinctrl framework for msm8226 SoC.

- Initial formatting and style was taken from the msm8x74 pinctrl driver
  added by Björn Andersson <bjorn.andersson@linaro.org>

Signed-off-by: Bartosz Dudziak <bartosz.dudziak@snejp.pl>
Link: https://lore.kernel.org/r/20200716205530.22910-3-bartosz.dudziak@snejp.pl
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-08-27 10:27:14 +02:00
Pali Rohár
0c0a41fb17 pinctrl: armada-37xx: Add comment for pcie1_reset pin group
Group name 'pcie1' is misleading as it controls only PCIe reset pin. Like
other PCIe groups it should have been called 'pcie1_reset'. But due to
backward compatibility it is not possible to change existing group name.
So just add comment describing this PCIe reset functionality.

Signed-off-by: Pali Rohár <pali@kernel.org>
Link: https://lore.kernel.org/r/20200724132457.7094-1-pali@kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-08-27 10:25:17 +02:00
Andrew Halaney
fe9c364427 pinctrl: nomadik: Fix pull direction debug info
The nomadik pinctrl hardware doesn't have any way to
determine if the active pull is up or down. Reading
the bit currently used to report if the pull is up/down
indicates if the gpio input is reading high or low, it
doesn't reflect the pull state.

For this reason change the output from "pull up"/"pull down" to
"pull enabled". This avoids confusing developers who were using
the output to determine what the pull state is.

Signed-off-by: Andrew Halaney <ajhalaney@gmail.com>
Link: https://lore.kernel.org/r/20200806155322.GA25523@ola-jn9phv2.ad.garmin.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-08-27 10:25:17 +02:00
Andy Shevchenko
04d5306850 pinctrl: intel: Update header block to reflect direct dependencies
Update header inclusion block to reflect all direct dependencies
that are being involved in pinctrl-intel.h.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2020-08-20 12:37:07 +03:00
Andy Shevchenko
10c857f063 pinctrl: cherryview: Switch to use intel_pinctrl_get_soc_data()
Since we have common helper to retrieve SoC data from driver data
we may switch to use it.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2020-08-20 12:37:07 +03:00
Andy Shevchenko
ce7793e9ef pinctrl: baytrail: Switch to use intel_pinctrl_get_soc_data()
Since we have common helper to retrieve SoC data from driver data
we may switch to use it.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2020-08-20 12:37:07 +03:00
Andy Shevchenko
ff360d62d9 pinctrl: intel: Extract intel_pinctrl_get_soc_data() helper for wider use
intel_pinctrl_get_soc_data() helper can be used in few driver instead of
open-coded variants. Thus, extract it as a standalone API.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2020-08-18 16:46:39 +03:00
Andy Shevchenko
359164fa73 pinctrl: cherryview: Utilize temporary variable to hold device pointer
By one of the previous clean up change we got a temporary variable to hold
a device pointer. It can be utilized in other calls in the ->probe() and
save a bit of LOCs.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2020-08-18 15:10:43 +03:00
Andy Shevchenko
3ea2e2cabd pinctrl: cherryview: Switch to use struct intel_pinctrl
Now when all preparations are done we may easily switch to use
struct intel_pinctrl instead of custom one.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2020-08-18 15:03:33 +03:00
Andy Shevchenko
8a82857077 pinctrl: cherryview: Move custom community members to separate data struct
This is a preparatory patch for bigger clean up pending for Cherryview driver.
There is no functional change intended.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2020-08-18 15:03:33 +03:00
Andy Shevchenko
0e2d769d4b pinctrl: cherryview: Drop stale comment
There is no more .groups member in struct chv_pinctrl,
drop associated comment because it's not applicable anymore.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2020-08-18 15:03:33 +03:00
Lad Prabhakar
417e249869 pinctrl: sh-pfc: r8a7790: Add USB1 PWEN pin and group
Add USB1 PWEN pin and group for USB1 interface.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/1595005225-11519-2-git-send-email-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2020-08-17 09:54:40 +02:00