Commit Graph

948943 Commits

Author SHA1 Message Date
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
Fabien Parent 3c41f0609e pinctrl: mt65xx: add OF bindings for MT8167
Add binding documentation of pinctrl-mt65xx for MT8167 SoC.

Signed-off-by: Fabien Parent <fparent@baylibre.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200907110221.1691168-1-fparent@baylibre.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-09-27 11:18:57 +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 5f76771a4a dt-bindings: pinctrl: rzn1: Convert to json-schema
Convert the Renesas RZ/N1 Pin controller Device Tree binding
documentation to json-schema.

Use "pinctrl" generic node name.
Drop generic and consumer examples, as they do not belong here.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Gareth Williams <gareth.williams.jx@renesas.com>
Reviewed-by: Gareth Williams <gareth.williams.jx@renesas.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200821112059.5133-1-geert+renesas@glider.be
2020-09-15 09:37:20 +02:00
Geert Uytterhoeven 5398b2fa46 dt-bindings: pinctrl: rza1: Convert to json-schema
Convert the Renesas RZ/A1 combined Pin and GPIO controller Device Tree
binding documentation to json-schema.

Rename "rza1-pinctrl" to "rza1-ports", to match the compatible value
scheme.
Use "pinctrl" generic node name.
Drop generic and consumer examples, as they do not belong here.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200821111956.4989-1-geert+renesas@glider.be
2020-09-15 09:37:20 +02:00
Geert Uytterhoeven d4691b7f62 dt-bindings: pinctrl: renesas,rza2-pinctrl: Fix pin controller node name
According to Devicetree Specification v0.2 and later, Section "Generic
Names Recommendation", the node name for a pin controller device node
should be "pinctrl".

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200821111127.3771-1-geert+renesas@glider.be
2020-09-15 09:37:20 +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
Geert Uytterhoeven 7b9ec81175 dt-bindings: pinctrl: sh-pfc: Convert to json-schema
Convert the Renesas Pin Function Controller (PFC) Device Tree binding
documentation to json-schema.

Document missing properties.
Drop deprecated and obsolete #gpio-range-cells property.
Update the example to match reality.
Drop consumer examples, as they do not belong here.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20200821112208.5295-1-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
Yangtao Li 5e842dc23c dt-bindings: pinctrl: sunxi: Add A100 pinctrl bindings
Add device tree binding Documentation details for A100 pinctrl driver,
which has a r pin controller and a pin controller with more irq lines.

Signed-off-by: Yangtao Li <frank@allwinnertech.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Maxime Ripard <mripard@kernel.org>
Link: https://lore.kernel.org/r/a5773d677bcc89af3810cdd187fae54eced82f27.1595572867.git.frank@allwinnertech.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-09-12 12:35:31 +02:00
Yangtao Li 96bef667dd dt-bindings: pinctrl: sunxi: Get rid of continual nesting
Rather than a continual nesting of 'else' clauses, just make
each 'if' a new entry under 'allOf' and get rid of the else.

Signed-off-by: Yangtao Li <frank@allwinnertech.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Maxime Ripard <mripard@kernel.org>
Link: https://lore.kernel.org/r/229e4870dab1b34797304c384e68c7d04196423b.1595572867.git.frank@allwinnertech.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-09-12 12:35:04 +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
Nobuhiro Iwamatsu 1825c1fe00 pinctrl: Add DT bindings for Toshiba Visconti TMPV7700 SoC
Add pinctrl bindings for Toshiba Visconti TMPV7700 SoC series.

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/20200909204336.2558-2-nobuhiro1.iwamatsu@toshiba.co.jp
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-09-12 12:25:30 +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
Zhiyong Tao d2f2f1321c dt-bindings: pinctrl: mt8192: add binding document
The commit adds mt8192 compatible node in binding document.

Signed-off-by: Zhiyong Tao <zhiyong.tao@mediatek.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200817001702.1646-3-zhiyong.tao@mediatek.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-08-27 10:50:49 +02:00
Zhiyong Tao 7c81b7199b dt-bindings: pinctrl: mt8192: add pinctrl file
This patch adds pinctrl file for mt8192.

Signed-off-by: Zhiyong Tao <zhiyong.tao@mediatek.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200817001702.1646-2-zhiyong.tao@mediatek.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-08-27 10:50:49 +02:00
Cristian Ciocaltea e1c1743185 MAINTAINERS: Set pinctrl binding entry for all Actions Semi Owl SoCs
Update the pinctrl binding entry to match all members of Actions Semi
Owl SoCs.

Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@gmail.com>
Link: https://lore.kernel.org/r/1a9eb2b12c151d4d765d2aa74dc9cd58b3c117dc.1596461275.git.cristian.ciocaltea@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-08-27 10:40:13 +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
Cristian Ciocaltea aebebcf910 dt-bindings: pinctrl: Add bindings for Actions S500 SoC
Add pinctrl and gpio bindings for Actions Semi S500 SoC.

Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/7abf618c446b7b648f512afe72e46704156e9912.1596461275.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
Bartosz Dudziak 441717c46f dt-bindings: pinctrl: qcom: Add msm8226 pinctrl bindings
Add device tree binding Documentation details for Qualcomm msm8226
pinctrl driver.

- Bindings documentation was based on qcom,ipq6018-pinctrl.yaml added by
  Sricharan R <sricharan@codeaurora.org> and then modified for msm8226
  content

Signed-off-by: Bartosz Dudziak <bartosz.dudziak@snejp.pl>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200716205530.22910-2-bartosz.dudziak@snejp.pl
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-08-27 10:26:24 +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