linux-stable.git/drivers/gpio, branch linux-6.5.y

gpiolib: of: Add quirk for mt2701-cs42448 ASoC sound

2023-11-28T17:14:47+00:00

[ Upstream commit 9e189e80dcb68528dea9e061d9704993f98cb84f ]

These gpio names are due to old DT bindings not following the
"-gpio"/"-gpios" conventions. Handle it using a quirk so the
driver can just look up the GPIOs.

Signed-off-by: Linus Walleij 
Acked-by: Bartosz Golaszewski 
Reviewed-by: AngeloGioacchino Del Regno 
Link: https://lore.kernel.org/r/20231006-descriptors-asoc-mediatek-v1-1-07fe79f337f5@linaro.org
Signed-off-by: Mark Brown 
Signed-off-by: Sasha Levin

gpiolib: acpi: Add a ignore interrupt quirk for Peaq C1010

2023-11-28T17:14:43+00:00

[ Upstream commit 6cc64f6173751d212c9833bde39e856b4f585a3e ]

On the Peaq C1010 2-in-1 INT33FC:00 pin 3 is connected to
a "dolby" button. At the ACPI level an _AEI event-handler
is connected which sets an ACPI variable to 1 on both
edges. This variable can be polled + cleared to 0 using WMI.

Since the variable is set on both edges the WMI interface is pretty
useless even when polling. So instead of writing a custom WMI
driver for this the x86-android-tablets code instantiates
a gpio-keys platform device for the "dolby" button.

Add an ignore_interrupt quirk for INT33FC:00 pin 3 on the Peaq C1010,
so that it is not seen as busy when the gpio-keys driver requests it.

Note this replaces a hack in x86-android-tablets where it would
call acpi_gpiochip_free_interrupts() on the INT33FC:00 GPIO
controller. acpi_gpiochip_free_interrupts() is considered private
(internal) gpiolib API so x86-android-tablets should stop using it.

Signed-off-by: Hans de Goede 
Reviewed-by: Andy Shevchenko 
Reviewed-by: Mika Westerberg 
Acked-by: Linus Walleij 
Acked-by: Bartosz Golaszewski 
Link: https://lore.kernel.org/r/20230909141816.58358-3-hdegoede@redhat.com
Signed-off-by: Sasha Levin

gpio: vf610: mask the gpio irq in system suspend and support wakeup

2023-10-25T10:16:28+00:00

commit 430232619791e7de95191f2cd8ebaa4c380d17d0 upstream.

Add flag IRQCHIP_MASK_ON_SUSPEND to make sure gpio irq is masked on
suspend, if lack this flag, current irq arctitecture will not mask
the irq, and these unmasked gpio irq will wrongly wakeup the system
even they are not config as wakeup source.

Also add flag IRQCHIP_ENABLE_WAKEUP_ON_SUSPEND to make sure the gpio
irq which is configed as wakeup source can work as expect.

Fixes: 7f2691a19627 ("gpio: vf610: add gpiolib/IRQ chip driver for Vybrid")
Signed-off-by: Haibo Chen 
Signed-off-by: Bartosz Golaszewski 
Signed-off-by: Greg Kroah-Hartman

gpio: vf610: set value before the direction to avoid a glitch

2023-10-25T10:16:28+00:00

commit fc363413ef8ea842ae7a99e3caf5465dafdd3a49 upstream.

We found a glitch when configuring the pad as output high. To avoid this
glitch, move the data value setting before direction config in the
function vf610_gpio_direction_output().

Fixes: 659d8a62311f ("gpio: vf610: add imx7ulp support")
Signed-off-by: Haibo Chen 
[Bartosz: tweak the commit message]
Signed-off-by: Bartosz Golaszewski 
Signed-off-by: Greg Kroah-Hartman

gpiolib: acpi: Add missing memset(0) to acpi_get_gpiod_from_data()

2023-10-25T10:16:28+00:00

commit 479ac419206b5fe4ce4e40de61ac3210a36711aa upstream.

When refactoring the acpi_get_gpiod_from_data() the change missed
cleaning up the variable on stack. Add missing memset().

Reported-by: Ferry Toth 
Fixes: 16ba046e86e9 ("gpiolib: acpi: teach acpi_find_gpio() to handle data-only nodes")
Signed-off-by: Andy Shevchenko 
Reviewed-by: Dmitry Torokhov 
Signed-off-by: Bartosz Golaszewski 
Signed-off-by: Greg Kroah-Hartman

gpio: timberdale: Fix potential deadlock on &tgpio->lock

2023-10-25T10:16:17+00:00

[ Upstream commit 9e8bc2dda5a7a8e2babc9975f4b11c9a6196e490 ]

As timbgpio_irq_enable()/timbgpio_irq_disable() callback could be
executed under irq context, it could introduce double locks on
&tgpio->lock if it preempts other execution units requiring
the same locks.

timbgpio_gpio_set()
--> timbgpio_update_bit()
--> spin_lock(&tgpio->lock)

   --> timbgpio_irq_disable()
   --> spin_lock_irqsave(&tgpio->lock)

This flaw was found by an experimental static analysis tool I am
developing for irq-related deadlock.

To prevent the potential deadlock, the patch uses spin_lock_irqsave()
on &tgpio->lock inside timbgpio_gpio_set() to prevent the possible
deadlock scenario.

Signed-off-by: Chengfeng Ye 
Reviewed-by: Andy Shevchenko 
Signed-off-by: Bartosz Golaszewski 
Signed-off-by: Sasha Levin

gpio: pxa: disable pinctrl calls for MMP_GPIO

2023-10-10T20:03:05+00:00

commit f0575116507b981e6a810e78ce3c9040395b958b upstream.

Similarly to PXA3xx and MMP2, pinctrl-single isn't capable of setting
pin direction on MMP either.

Fixes: a770d946371e ("gpio: pxa: add pin control gpio direction and request")
Signed-off-by: Duje Mihanović 
Reviewed-by: Andy Shevchenko 
Signed-off-by: Bartosz Golaszewski 
Signed-off-by: Greg Kroah-Hartman

gpio: aspeed: fix the GPIO number passed to pinctrl_gpio_set_config()

2023-10-10T20:03:04+00:00

commit f9315f17bf778cb8079a29639419fcc8a41a3c84 upstream.

pinctrl_gpio_set_config() expects the GPIO number from the global GPIO
numberspace, not the controller-relative offset, which needs to be added
to the chip base.

Fixes: 5ae4cb94b313 ("gpio: aspeed: Add debounce support")
Signed-off-by: Bartosz Golaszewski 
Reviewed-by: Andy Shevchenko 
Reviewed-by: Andrew Jeffery 
Signed-off-by: Greg Kroah-Hartman

gpio: pmic-eic-sprd: Add can_sleep flag for PMIC EIC chip

2023-10-06T11:16:06+00:00

[ Upstream commit 26d9e5640d2130ee16df7b1fb6a908f460ab004c ]

The drivers uses a mutex and I2C bus access in its PMIC EIC chip
get implementation. This means these functions can sleep and the PMIC EIC
chip should set the can_sleep property to true.

This will ensure that a warning is printed when trying to get the
value from a context that potentially can't sleep.

Fixes: 348f3cde84ab ("gpio: Add Spreadtrum PMIC EIC driver support")
Signed-off-by: Wenhua Lin 
Signed-off-by: Bartosz Golaszewski 
Signed-off-by: Sasha Levin

gpio: tb10x: Fix an error handling path in tb10x_gpio_probe()

2023-10-06T11:15:59+00:00

[ Upstream commit b547b5e52a0587e6b25ea520bf2f9e03d00cbcb6 ]

If an error occurs after a successful irq_domain_add_linear() call, it
should be undone by a corresponding irq_domain_remove(), as already done
in the remove function.

Fixes: c6ce2b6bffe5 ("gpio: add TB10x GPIO driver")
Signed-off-by: Christophe JAILLET 
Signed-off-by: Bartosz Golaszewski 
Signed-off-by: Sasha Levin