Commit Graph

4632 Commits

Author SHA1 Message Date
Douglas Anderson
c3c0c2e18d pinctrl: qcom: Handle broken/missing PDC dual edge IRQs on sc7180
Depending on how you look at it, you can either say that:
a) There is a PDC hardware issue (with the specific IP rev that exists
   on sc7180) that causes the PDC not to work properly when configured
   to handle dual edges.
b) The dual edge feature of the PDC hardware was only added in later
   HW revisions and thus isn't in all hardware.

Regardless of how you look at it, let's work around the lack of dual
edge support by only ever letting our parent see requests for single
edge interrupts on affected hardware.

NOTE: it's possible that a driver requesting a dual edge interrupt
might get several edges coalesced into a single IRQ.  For instance if
a line starts low and then goes high and low again, the driver that
requested the IRQ is not guaranteed to be called twice.  However, it
is guaranteed that once the driver's interrupt handler starts running
its first instruction that any new edges coming in will cause the
interrupt to fire again.  This is relatively commonplace for dual-edge
gpio interrupts (many gpio controllers require software to emulate
dual edge with single edge) so client drivers should be setup to
handle it.

Fixes: e35a6ae0eb ("pinctrl/msm: Setup GPIO chip in hierarchy")
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20200714080254.v3.1.Ie0d730120b232a86a4eac1e2909bcbec844d1766@changeid
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-16 15:41:41 +02:00
Linus Torvalds
cf0c97f148 This is the bulk of pin control changes for the v5.8
kernel cycle.
 
 New drivers:
 
 - Intel Jasper Lake support.
 
 - NXP Freescale i.MX8DXL support.
 
 - Qualcomm SM8250 support.
 
 - Renesas R8A7742 SH-PFC support.
 
 Driver improvements:
 
 - Severe cleanup and modernization of the MCP23s08 driver.
 
 - Mediatek driver modularized.
 
 - Setting config supported in the Meson driver.
 
 - Wakeup support for the Broadcom BCM7211.
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Merge tag 'pinctrl-v5.8-1' 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 v5.8 kernel cycle.

  It's just really boring this time. Zero core changes. Just linear
  development, cleanups and misc noncritical fixes. Some new drivers for
  very new Qualcomm and Intel chips.

  New drivers:

   - Intel Jasper Lake support.

   - NXP Freescale i.MX8DXL support.

   - Qualcomm SM8250 support.

   - Renesas R8A7742 SH-PFC support.

  Driver improvements:

   - Severe cleanup and modernization of the MCP23s08 driver.

   - Mediatek driver modularized.

   - Setting config supported in the Meson driver.

   - Wakeup support for the Broadcom BCM7211"

* tag 'pinctrl-v5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (72 commits)
  pinctrl: sprd: Fix the incorrect pull-up definition
  pinctrl: pxa: pxa2xx: Remove 'pxa2xx_pinctrl_exit()' which is unused and broken
  pinctrl: freescale: imx: Use 'devm_of_iomap()' to avoid a resource leak in case of error in 'imx_pinctrl_probe()'
  pinctrl: freescale: imx: Fix an error handling path in 'imx_pinctrl_probe()'
  pinctrl: sirf: add missing put_device() call in sirfsoc_gpio_probe()
  pinctrl: imxl: Fix an error handling path in 'imx1_pinctrl_core_probe()'
  pinctrl: bcm2835: Add support for wake-up interrupts
  pinctrl: bcm2835: Match BCM7211 compatible string
  dt-bindings: pinctrl: Document optional BCM7211 wake-up interrupts
  dt-bindings: pinctrl: Document 7211 compatible for brcm, bcm2835-gpio.txt
  dt-bindings: pinctrl: stm32: Add missing interrupts property
  pinctrl: at91-pio4: Add COMPILE_TEST support
  pinctrl: Fix return value about devm_platform_ioremap_resource()
  MAINTAINERS: Renesas Pin Controllers are supported
  dt-bindings: pinctrl: ocelot: Add Sparx5 SoC support
  pinctrl: ocelot: Fix GPIO interrupt decoding on Jaguar2
  pinctrl: ocelot: Remove instance number from pin functions
  pinctrl: ocelot: Always register GPIO driver
  dt-bindings: pinctrl: rockchip: update example
  pinctrl: amd: Add ACPI dependency
  ...
2020-06-07 16:13:43 -07:00
Baolin Wang
94873f6b46 pinctrl: sprd: Fix the incorrect pull-up definition
The bits of pull up resistor selection were defined mistakenly,
thus fix them.

Fixes: 41d32cfce1 ("pinctrl: sprd: Add Spreadtrum pin control driver")
Signed-off-by: Baolin Wang <baolin.wang7@gmail.com>
Link: https://lore.kernel.org/r/e973f8f194ce4cb2639121572e8621b5efa5bfbe.1588823152.git.baolin.wang7@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-06-04 00:15:20 +02:00
Christophe JAILLET
08acc96319 pinctrl: pxa: pxa2xx: Remove 'pxa2xx_pinctrl_exit()' which is unused and broken
Commit 6d33ee7a05 ("pinctrl: pxa: Use devm_pinctrl_register() for pinctrl registration")
has turned a 'pinctrl_register()' into 'devm_pinctrl_register()' in
'pxa2xx_pinctrl_init()'.
However, the corresponding 'pinctrl_unregister()' call in
'pxa2xx_pinctrl_exit()' has not been removed.

This is not an issue, because 'pxa2xx_pinctrl_exit()' is unused.
Remove it now to avoid some wondering in the future and save a few LoC.

Fixes: 6d33ee7a05 ("pinctrl: pxa: Use devm_pinctrl_register() for pinctrl registration")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Link: https://lore.kernel.org/r/20200531073716.593343-1-christophe.jaillet@wanadoo.fr
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-06-04 00:05:13 +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
yu kuai
66339f2fba pinctrl: sirf: add missing put_device() call in sirfsoc_gpio_probe()
A coccicheck run provided information like the following:

drivers/pinctrl/sirf/pinctrl-sirf.c:798:2-8: ERROR: missing put_device;
call of_find_device_by_node on line 792, but without a corresponding
object release within this function.

Generated by: scripts/coccinelle/free/put_device.cocci

Thus add a jump target to fix the exception handling for this
function implementation.

Fixes: 5130216265 ("PINCTRL: SiRF: add GPIO and GPIO irq support in CSR SiRFprimaII")
Signed-off-by: yu kuai <yukuai3@huawei.com>
Link: https://lore.kernel.org/r/20200603013532.755220-1-yukuai3@huawei.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-06-03 14:32:28 +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
Florian Fainelli
920fecc1aa pinctrl: bcm2835: Add support for wake-up interrupts
Leverage the IRQCHIP_MASK_ON_SUSPEND flag in order to avoid having to
specifically treat the GPIO interrupts during suspend and resume, and
simply implement an irq_set_wake() callback that is responsible for
enabling the parent wake-up interrupt as a wake-up interrupt.

To avoid allocating unnecessary resources for other chips, the wake-up
interrupts are only initialized if we have a brcm,bcm7211-gpio
compatibility string.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20200531001101.24945-5-f.fainelli@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-06-03 14:16:38 +02:00
Florian Fainelli
562c856f96 pinctrl: bcm2835: Match BCM7211 compatible string
The BCM7211 SoC uses the same pinconf_ops as the ones defined for the
BCM2711 SoC, match the compatible string and use the correct set of
options.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20200531001101.24945-4-f.fainelli@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-06-03 14:16:38 +02:00
Tiezhu Yang
e682fcc769 pinctrl: at91-pio4: Add COMPILE_TEST support
Add COMPILE_TEST support to the AT91 PIO4 pinctrl driver for better compile
testing coverage.

Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Link: https://lore.kernel.org/r/1590234326-2194-2-git-send-email-yangtiezhu@loongson.cn
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-05-25 13:40:48 +02:00
Tiezhu Yang
b5d9ff10dc pinctrl: Fix return value about devm_platform_ioremap_resource()
When call function devm_platform_ioremap_resource(), we should use IS_ERR()
to check the return value and return PTR_ERR() if failed.

Fixes: 4b024225c4 ("pinctrl: use devm_platform_ioremap_resource() to simplify code")
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Link: https://lore.kernel.org/r/1590234326-2194-1-git-send-email-yangtiezhu@loongson.cn
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-05-25 13:40:47 +02:00
Linus Walleij
6fe7c07a9a pinctrl: sh-pfc: Updates for v5.8 (take two)
- Add support for the new RZ/G1H (r8a7742) SoC,
   - Minor fixes and improvements.
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Merge tag 'sh-pfc-for-v5.8-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into devel

pinctrl: sh-pfc: Updates for v5.8 (take two)

  - Add support for the new RZ/G1H (r8a7742) SoC,
  - Minor fixes and improvements.
2020-05-25 11:19:44 +02:00
Linus Walleij
d04996eac5 Samsung pinctrl drivers changes for v5.8
Two fixes for S5Pv210 pinctrl driver: setting proper external interrupt
 wakeup mask and restoring external interrupt mask value after system
 suspend.
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Merge tag 'samsung-pinctrl-5.8' of https://git.kernel.org/pub/scm/linux/kernel/git/pinctrl/samsung into devel

Samsung pinctrl drivers changes for v5.8

Two fixes for S5Pv210 pinctrl driver: setting proper external interrupt
wakeup mask and restoring external interrupt mask value after system
suspend.
2020-05-19 10:45:50 +02:00
Lars Povlsen
0b47afc654 pinctrl: ocelot: Fix GPIO interrupt decoding on Jaguar2
This fixes a problem with using the GPIO as an interrupt on Jaguar2
(and similar), as the register layout of the platforms with 64 GPIO's
are pairwise, such that the original offset must be multiplied with
the platform stride.

Fixes: da801ab56a pinctrl: ocelot: add MSCC Jaguar2 support.
Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Lars Povlsen <lars.povlsen@microchip.com>
Link: https://lore.kernel.org/r/20200513125532.24585-4-lars.povlsen@microchip.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-05-18 09:31:27 +02:00
Lars Povlsen
edc7254664 pinctrl: ocelot: Remove instance number from pin functions
This patch removes the instance number from the "miim", "reco_clk" and
"sfp" pin function.

The change needed is to prepare the driver for adding new platforms
with more of these instances. The instance number is also redundant,
as this is implicit for each pin.

Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Lars Povlsen <lars.povlsen@microchip.com>
Link: https://lore.kernel.org/r/20200513125532.24585-3-lars.povlsen@microchip.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-05-18 09:30:35 +02:00
Lars Povlsen
550713e33f pinctrl: ocelot: Always register GPIO driver
This fixes the situation where the GPIO controller is not
used as an interrupt controller as well.

Previously, the driver would silently fail to register even the
GPIO's. With this change, the driver will only register as an
interrupt controller if a parent interrupt is provided.

Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Lars Povlsen <lars.povlsen@microchip.com>
Link: https://lore.kernel.org/r/20200513125532.24585-2-lars.povlsen@microchip.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-05-18 09:28:51 +02:00
Geert Uytterhoeven
47fa5c971b pinctrl: amd: Add ACPI dependency
Currently the AMD pin controller driver supports ACPI platform only.
Make the PINCTRL_AMD config symbol depend on ACPI, to avoid asking the
user about it when configuring a kernel without ACPI support.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20200507113751.24213-1-geert+renesas@glider.be
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-05-16 11:23:11 +02:00
Geert Uytterhoeven
80691a8ac7 pinctrl: equilibrium: Add architecture dependency
The Equilibrium pin controller is only present on Intel Lightning
Mountain SoCs.  Add an architecture dependency to the
PINCTRL_EQUILIBRIUM config symbol, to avoid asking the user about it
when configuring a kernel for a non-x86 architecture.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20200507113626.24026-2-geert+renesas@glider.be
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-05-16 11:21:25 +02:00
Linus Walleij
98a09fb4cb intel-pinctrl for v5.8-1
* Introduce GPIO driver for Jasper Lake
 * Fix long standing bug in Sunrisepoint-H PAD locking code
 * Enable pin configuration setting for GPIO chip for Baytrail
 * Work around race condition in Cherriview hardware when handle IRQ
 * Clean up Cherryview code to be closer to other drivers
 
 The following is an automated git shortlog grouped by driver:
 
 baytrail:
  -  Use platform_get_irq_optional() explicitly
  -  Enable pin configuration setting for GPIO chip
 
 cannonlake:
  -  Use generic flag for special GPIO base treatment
 
 cherryview:
  -  Add missing spinlock usage in chv_gpio_irq_handler
  -  Use GENMASK() consistently
  -  Re-use data structures from pinctrl-intel.h (part 2)
 
 icelake:
  -  Use generic flag for special GPIO base treatment
 
 intel:
  -  Move npins closer to pin_base in struct intel_community
  -  Update description in struct intel_community
  -  Add Intel Jasper Lake pin controller support
  -  Introduce new flag to force GPIO base to be 0
  -  Introduce common flags for GPIO mapping scheme
 
 lynxpoint:
  -  Use platform_get_irq_optional() explicitly
 
 sunrisepoint:
  -  Fix PAD lock register offset for SPT-H
 
 tigerlake:
  -  Use generic flag for special GPIO base treatment
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Merge tag 'intel-pinctrl-v5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pinctrl/intel into devel

intel-pinctrl for v5.8-1

* Introduce GPIO driver for Jasper Lake
* Fix long standing bug in Sunrisepoint-H PAD locking code
* Enable pin configuration setting for GPIO chip for Baytrail
* Work around race condition in Cherriview hardware when handle IRQ
* Clean up Cherryview code to be closer to other drivers

The following is an automated git shortlog grouped by driver:

baytrail:
 -  Use platform_get_irq_optional() explicitly
 -  Enable pin configuration setting for GPIO chip

cannonlake:
 -  Use generic flag for special GPIO base treatment

cherryview:
 -  Add missing spinlock usage in chv_gpio_irq_handler
 -  Use GENMASK() consistently
 -  Re-use data structures from pinctrl-intel.h (part 2)

icelake:
 -  Use generic flag for special GPIO base treatment

intel:
 -  Move npins closer to pin_base in struct intel_community
 -  Update description in struct intel_community
 -  Add Intel Jasper Lake pin controller support
 -  Introduce new flag to force GPIO base to be 0
 -  Introduce common flags for GPIO mapping scheme

lynxpoint:
 -  Use platform_get_irq_optional() explicitly

sunrisepoint:
 -  Fix PAD lock register offset for SPT-H

tigerlake:
 -  Use generic flag for special GPIO base treatment
2020-05-15 15:06:00 +02:00
Geert Uytterhoeven
7227797a4e pinctrl: rza1: Fix flag name in comment
rza1_swio_pin relates to the swio flag instead of the bidir flag.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Link: https://lore.kernel.org/r/20200507074516.29903-1-geert+renesas@glider.be
2020-05-15 10:47:06 +02:00
Lad Prabhakar
4ecc7ff82e pinctrl: sh-pfc: r8a7790: Add r8a7742 PFC support
Renesas RZ/G1H (R8A7742) is pin compatible with R-Car H2 (R8A7790),
however it doesn't have several automotive specific peripherals. Add
automotive-specific pin groups/functions along with common pin
groups/functions for supporting both r8a7790 and r8a7742 SoC.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Marian-Cristian Rotariu <marian-cristian.rotariu.rb@bp.renesas.com>
Link: https://lore.kernel.org/r/1588542414-14826-3-git-send-email-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2020-05-15 10:47:06 +02:00
Dafna Hirschfeld
d7faa8ffb6 pinctrl: rockchip: fix memleak in rockchip_dt_node_to_map
In function rockchip_dt_node_to_map, a new_map variable is
allocated by:

new_map = devm_kcalloc(pctldev->dev, map_num, sizeof(*new_map),
		       GFP_KERNEL);

This uses devres and attaches new_map to the pinctrl driver.
This cause a leak since new_map is not released when the probed
driver is removed. Fix it by using kcalloc to allocate new_map
and free it in `rockchip_dt_free_map`

Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20200506100903.15420-1-dafna.hirschfeld@collabora.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-05-12 19:45:33 +02:00
Dafna Hirschfeld
c4f333b758 pinctrl: rockchip: return ENOMEM instead of EINVAL if allocation fails
The function rockchip_pinctrl_parse_dt returns -EINVAL if
allocation fails. Change the return error to -ENOMEM

Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20200506101424.15691-1-dafna.hirschfeld@collabora.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-05-12 15:19:07 +02:00
Arnd Bergmann
c7acd6fe8a pinctrl: mediatek: add pinctrl-mtk-common-v2 module license
Kbuild warns when this file is built as a loadable module:

WARNING: modpost: missing MODULE_LICENSE() in drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.o
see include/linux/module.h for more information

Add the missing license/author/description tags.

Fixes: 8174a8512e ("pinctrl: mediatek: make MediaTek pinctrl v2 driver ready for buidling loadable module")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20200505140848.554957-1-arnd@arndb.de
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-05-12 15:10:36 +02:00
Paul Cercueil
9a0f1341df pinctrl: ingenic: Add irq_{request,release}_resources callbacks
These are called when a GPIO is to be used as IRQ.

Without these custom callbacks, when an interrupt is requested directly
and not through gpiod_to_irq(), the request fails because the GPIO is
not necesarily in input mode. These callbacks simply enforce that the
requested GPIO is in input mode.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20200503164549.163884-1-paul@crapouillou.net
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-05-12 15:05:02 +02:00
Venkata Narendra Kumar Gutta
dca4f40742 pinctrl: qcom: Add affinity callbacks to msmgpio IRQ chip
Wakeup capable GPIO IRQs routed via PDC are not being migrated when a CPU
is hotplugged. Add affinity callbacks to msmgpio IRQ chip to update the
affinity of wakeup capable IRQs.

Fixes: e35a6ae0eb ("pinctrl/msm: Setup GPIO chip in hierarchy")
Signed-off-by: Venkata Narendra Kumar Gutta <vnkgutta@codeaurora.org>
[mkshah: updated commit text and minor code fixes]
Signed-off-by: Maulik Shah <mkshah@codeaurora.org>
Tested-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/1588314617-4556-1-git-send-email-mkshah@codeaurora.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-05-12 14:29:29 +02:00
Rikard Falkeborn
8068071c09 pinctrl: rk805: Constify rk805_gpio_cfgs
Mark pin_cfg as const, allowing the compiler to put the struct in
.rodata instead of .data.

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Link: https://lore.kernel.org/r/20200425203813.6442-1-rikard.falkeborn@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-05-12 13:35:33 +02:00
Linus Walleij
7740dda5b4 pinctrl: sh-pfc: Updates for v5.8
- Fix SWIO pins on RZ/A1L,
   - Add missing bindings to MAINTAINERS.
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Merge tag 'sh-pfc-for-v5.8-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into devel

pinctrl: sh-pfc: Updates for v5.8

  - Fix SWIO pins on RZ/A1L,
  - Add missing bindings to MAINTAINERS.
2020-05-09 00:37:04 +02:00
Linus Walleij
32c8a94660 pinctrl: db8500: Fix some old bugs
The Hulk robot reports these build warnings:

drivers/pinctrl/nomadik/pinctrl-nomadik-db8500.c:899:20: warning:
‘sbag_groups’ defined but not used [-Wunused-const-variable=]
 DB8500_FUNC_GROUPS(sbag, "sbag_oc2_1", "sbag_oc4_1");
                    ^
drivers/pinctrl/nomadik/pinctrl-nomadik-db8500.c:570:23: warning:
‘ipgpio6_c_2_pins’ defined but not used [-Wunused-const-variable=]
 static const unsigned ipgpio6_c_2_pins[] = { DB8500_PIN_G3 };
                       ^~~~~~~~~~~~~~~~
drivers/pinctrl/nomadik/pinctrl-nomadik-db8500.c:472:23: warning:
‘mc1dir_a_1_pins’ defined but not used [-Wunused-const-variable=]
 static const unsigned mc1dir_a_1_pins[] = { DB8500_PIN_AH13,
DB8500_PIN_AG12,
                       ^~~~~~~~~~~~~~~
drivers/pinctrl/nomadik/pinctrl-nomadik-db8500.c:453:23: warning:
‘modem_a_1_pins’ defined but not used [-Wunused-const-variable=]
 static const unsigned modem_a_1_pins[] = { DB8500_PIN_D22,
DB8500_PIN_C23,
                       ^~~~~~~~~~~~~~
drivers/pinctrl/nomadik/pinctrl-nomadik-db8500.c:430:23: warning:
‘kpskaskb_a_1_pins’ defined but not used [-Wunused-const-variable=]
 static const unsigned kpskaskb_a_1_pins[] = { DB8500_PIN_D17,
DB8500_PIN_D16 };
                       ^~~~~~~~~~~~~~~~~

They are just very old bugs in seldomly used pin groups.
Fix the problem by using the pins and referencing the
function.

Reported-by: Hulk Robot <hulkci@huawei.com>
Reported-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-04-28 16:33:08 +02:00
Linus Walleij
767972b9b4 pinctrl: ab8505: Define group for GPIO pin 50
The Hulk robot reports an usused varible:

drivers/pinctrl/nomadik/pinctrl-ab8505.c:137:23: warning:
‘gpio50_a_1_pins’ defined but not used [-Wunused-const-variable=]
 static const unsigned gpio50_a_1_pins[] = { AB8505_PIN_L4 };
                       ^~~~~~~~~~~~~~~

This variable actually should be used. Probably an oversight
by the driver author.

Cc: Patrice Chotard <patrice.chotard@st.com>
Reported-by: Hulk Robot <hulkci@huawei.com>
Reported-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-04-28 16:32:57 +02:00
Jason Yan
0320d260a7 pinctrl: bm1880: add pwm37 to bm1880_pctrl_groups
The 'pwm37' is not added to bm1880_pctrl_groups, which triggers a gcc
build warning:

drivers/pinctrl/pinctrl-bm1880.c:263:27: warning: ‘pwm37_pins’ defined
but not used [-Wunused-const-variable=]
 static const unsigned int pwm37_pins[] = { 110 };

Signed-off-by: Jason Yan <yanaijie@huawei.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20200428115543.33379-1-yanaijie@huawei.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-04-28 16:28:37 +02:00
Amelie Delaunay
36126f5309 pinctrl: stmfx: stmfx_pinconf_set doesn't require to get direction anymore
Pin direction is not used to set pin configuration.

Fixes: a502b343eb ("pinctrl: stmfx: update pinconf settings")
Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com>
Link: https://lore.kernel.org/r/20200422072513.8352-1-amelie.delaunay@st.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-04-28 14:49:11 +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
Martin Blumenstingl
f8f0aa0089 pinctrl: meson: wire up the gpio_chip's set_config callback
Use gpiochip_generic_config for the gpio_chip's set_config callback so
GPIO flags like GPIO_PULL_UP or GPIO_PULL_DOWN can be used in the board
.dts descriptions.
This is required for some Meson8m2 boards where GPIO_BSD_EN provides the
"MUTE" signal and requires enabling the internal pull-up resistor.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Link: https://lore.kernel.org/r/20200417183349.1283092-3-martin.blumenstingl@googlemail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-04-28 12:00:46 +02:00
Martin Blumenstingl
ef1d0bce38 pinctrl: meson: implement the gpio_chip get_direction callback
Implement the get_direction callback so we read the direction from the
actual GPIO controller register. This is recommended by the gpio_chip
kernel doc.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Link: https://lore.kernel.org/r/20200417183349.1283092-2-martin.blumenstingl@googlemail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-04-28 12:00:46 +02:00
Jonathan Bakker
f354157a7d pinctrl: samsung: Save/restore eint_mask over suspend for EINT_TYPE GPIOs
Currently, for EINT_TYPE GPIOs, the CON and FLTCON registers
are saved and restored over a suspend/resume cycle.  However, the
EINT_MASK registers are not.

On S5PV210 at the very least, these registers are not retained over
suspend, leading to the interrupts remaining masked upon resume and
therefore no interrupts being triggered for the device.  There should
be no effect on any SoCs that do retain these registers as theoretically
we would just be re-writing what was already there.

Fixes: 7ccbc60cd9 ("pinctrl: exynos: Handle suspend/resume of GPIO EINT registers")
Cc: <stable@vger.kernel.org>
Signed-off-by: Jonathan Bakker <xc-racer2@live.ca>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-04-28 11:38:11 +02:00
Venkata Narendra Kumar Gutta
4e3ec9e407 pinctrl: qcom: Add sm8250 pinctrl driver.
Add initial Qualcomm SM8250 pinctrl driver to support pin configuration
with pinctrl framework for SM8250 SoC.

Signed-off-by: Rishabh Bhatnagar <rishabhb@codeaurora.org>
Signed-off-by: Venkata Narendra Kumar Gutta <vnkgutta@codeaurora.org>
Link: https://lore.kernel.org/r/1586477057-7636-2-git-send-email-vnkgutta@codeaurora.org
[bjorn: Regrouped functions, upstream tiles implementation, dropped
        downstream-only features]
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20200417061907.1226490-3-bjorn.andersson@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-04-28 11:18:05 +02:00
Andy Shevchenko
6d649fca34 pinctrl: intel: Move npins closer to pin_base in struct intel_community
It's common across the drivers to use the (pin_base, npins) pair to describe
community characteristics. Thus, move them in the struct intel_community
to be closer to each other.

While at it, add a blank line to cut driver usable fields from what core
reserves for itself.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2020-04-22 14:20:00 +03:00
Andy Shevchenko
2ccb9cc3b4 pinctrl: intel: Update description in struct intel_community
It appears that most of the drivers, that are using struct intel_community,
utilize gpps rather than gpp_size. Update comment accordingly.

While here, correct the description of gpp_size, i.e. remove double space
and drop redundant 'etc.' part.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2020-04-22 14:19:03 +03:00
Jason Yan
4b4e8e93ec pinctrl: rza1: Fix wrong array assignment of rza1l_swio_entries
The rza1l_swio_entries referred to the wrong array rza1h_swio_pins,
which was intended to be rza1l_swio_pins. So let's fix it.

This is detected by the following gcc warning:

drivers/pinctrl/pinctrl-rza1.c:401:35: warning: ‘rza1l_swio_pins’
defined but not used [-Wunused-const-variable=]
 static const struct rza1_swio_pin rza1l_swio_pins[] = {
                                   ^~~~~~~~~~~~~~~

Fixes: 039bc58e73 ("pinctrl: rza1: Add support for RZ/A1L")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Link: https://lore.kernel.org/r/20200417111604.19143-1-yanaijie@huawei.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2020-04-20 10:12:55 +02:00
Linus Walleij
9cd347294b intel-pinctrl for v5.7-2
* Enable pin configuration setting for Baytrail
 * Fix interrupt handling due to hardware sighting for Cherryview
 * Fix PAD lock offset for Sunrisepoint-H
 
 The following is an automated git shortlog grouped by driver:
 
 baytrail:
  -  Enable pin configuration setting for GPIO chip
 
 cherryview:
  -  Add missing spinlock usage in chv_gpio_irq_handler
 
 sunrisepoint:
  -  Fix PAD lock register offset for SPT-H
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Merge tag 'intel-pinctrl-v5.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pinctrl/intel into fixes

intel-pinctrl for v5.7-2

* Enable pin configuration setting for Baytrail
* Fix interrupt handling due to hardware sighting for Cherryview
* Fix PAD lock offset for Sunrisepoint-H

The following is an automated git shortlog grouped by driver:

baytrail:
 -  Enable pin configuration setting for GPIO chip

cherryview:
 -  Add missing spinlock usage in chv_gpio_irq_handler

sunrisepoint:
 -  Fix PAD lock register offset for SPT-H
2020-04-17 16:36:04 +02:00
Grace Kao
69388e15f5 pinctrl: cherryview: Add missing spinlock usage in chv_gpio_irq_handler
According to Braswell NDA Specification Update (#557593),
concurrent read accesses may result in returning 0xffffffff and write
instructions may be dropped. We have an established format for the
commit references, i.e.
cdca06e4e8 ("pinctrl: baytrail: Add missing spinlock usage in
byt_gpio_irq_handler")

Fixes: 0bd50d719b ("pinctrl: cherryview: prevent concurrent access to GPIO controllers")
Signed-off-by: Grace Kao <grace.kao@intel.com>
Reported-by: Brian Norris <briannorris@chromium.org>
Reviewed-by: Brian Norris <briannorris@chromium.org>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-04-17 14:37:40 +03:00
Grace Kao
3dbf1ee6ab pinctrl: cherryview: Add missing spinlock usage in chv_gpio_irq_handler
According to Braswell NDA Specification Update (#557593),
concurrent read accesses may result in returning 0xffffffff and write
instructions may be dropped. We have an established format for the
commit references, i.e.
cdca06e4e8 ("pinctrl: baytrail: Add missing spinlock usage in
byt_gpio_irq_handler")

Fixes: 0bd50d719b ("pinctrl: cherryview: prevent concurrent access to GPIO controllers")
Signed-off-by: Grace Kao <grace.kao@intel.com>
Reported-by: Brian Norris <briannorris@chromium.org>
Reviewed-by: Brian Norris <briannorris@chromium.org>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-04-17 14:36:22 +03:00
Jason Yan
7045e673c2 pinctrl: mcp23s08: add module license
Fix the following build warning:

WARNING: modpost: missing MODULE_LICENSE() in
drivers/pinctrl/pinctrl-mcp23s08.o
see include/linux/module.h for more information

Signed-off-by: Jason Yan <yanaijie@huawei.com>
Link: https://lore.kernel.org/r/20200417092125.12513-1-yanaijie@huawei.com
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-04-17 12:24:59 +02:00
YueHaibing
5da42a3d25 pinctrl: qcom: Remove duplicated include from pinctrl-msm.c
Remove duplicated include.

Fixes: 13bec8d49b ("pinctrl: qcom: use scm_call to route GPIO irq to Apps")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20200408070504.134847-1-yuehaibing@huawei.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-04-17 12:24:52 +02:00
Andy Shevchenko
5f3b82a168 pinctrl: lynxpoint: Use platform_get_irq_optional() explicitly
There is no need to repeat functionality of platform_get_irq_optional()
in the driver. Replace it with explicit call to the helper.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
2020-04-16 18:54:34 +03:00
Andy Shevchenko
0f04a81784 pinctrl: mcp23s08: Split to three parts: core, I²C, SPI
Split the driver to three parts: core, I²C, SPI.
No functional change intended.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200407173849.43628-9-andriy.shevchenko@linux.intel.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-04-16 14:21:23 +02:00
Andy Shevchenko
7b04aaaf66 pinctrl: mcp23s08: Use for_each_set_bit() and hweight_long()
Here is a simplification of SPI code by using for_each_set_bit() and
hweight_long() library functions.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200407173849.43628-8-andriy.shevchenko@linux.intel.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-04-16 14:21:23 +02:00
Andy Shevchenko
1ac30db20b pinctrl: mcp23s08: Make use of device properties
Device property API allows to gather device resources from different sources,
such as ACPI. Convert the drivers to unleash the power of device property API.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200407173849.43628-7-andriy.shevchenko@linux.intel.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-04-16 14:21:23 +02:00