linux-stable.git/drivers/gpio, branch v6.0.2

gpiolib: acpi: Add a quirk for Asus UM325UAZ

2022-10-12T07:39:04+00:00

commit 0ea76c401f9245ac209f1b1ce03a7e1fb9de36e5 upstream.

Asus UM325UAZ has GPIO 18 programmed as both an interrupt and a wake
source, but confirmed with internal team on this design this pin is
floating and shouldn't have been programmed. This causes lots of
spurious IRQs on the system and horrendous battery life.

Add a quirk to ignore attempts to program this pin on this system.

Reported-by: Pavel Krc 
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216208
Reviewed-by: Hans de Goede 
Signed-off-by: Mario Limonciello 
Reviewed-by: Mika Westerberg 
Signed-off-by: Andy Shevchenko 
Signed-off-by: Greg Kroah-Hartman

gpiolib: acpi: Add support to ignore programming an interrupt

2022-10-12T07:39:04+00:00

commit 6b6af7bd5718f4e45a9b930533aec1158387d552 upstream.

gpiolib-acpi already had support for ignoring a pin for wakeup, but
if an OEM configures a floating pin as an interrupt source then
stopping it from being a wakeup won't do much good to stop the
interrupt storm.

Add support for a module parameter and quirk infrastructure to
ignore interrupts as well.

Signed-off-by: Mario Limonciello 
Reviewed-by: Hans de Goede 
Reviewed-by: Mika Westerberg 
Signed-off-by: Andy Shevchenko 
Signed-off-by: Greg Kroah-Hartman

gpio: mvebu: Fix check for pwm support on non-A8K platforms

2022-09-26T07:20:09+00:00

pwm support incompatible with Armada 80x0/70x0 API is not only in
Armada 370, but also in Armada XP, 38x and 39x. So basically every non-A8K
platform. Fix check for pwm support appropriately.

Fixes: 85b7d8abfec7 ("gpio: mvebu: add pwm support for Armada 8K/7K")
Signed-off-by: Pali Rohár 
Signed-off-by: Bartosz Golaszewski

gpiolib: cdev: Set lineevent_state::irq after IRQ register successfully

2022-09-21T07:32:11+00:00

When running gpio test on nxp-ls1028 platform with below command
gpiomon --num-events=3 --rising-edge gpiochip1 25
There will be a warning trace as below:
Call trace:
free_irq+0x204/0x360
lineevent_free+0x64/0x70
gpio_ioctl+0x598/0x6a0
__arm64_sys_ioctl+0xb4/0x100
invoke_syscall+0x5c/0x130
......
el0t_64_sync+0x1a0/0x1a4
The reason of this issue is that calling request_threaded_irq()
function failed, and then lineevent_free() is invoked to release
the resource. Since the lineevent_state::irq was already set, so
the subsequent invocation of free_irq() would trigger the above
warning call trace. To fix this issue, set the lineevent_state::irq
after the IRQ register successfully.

Fixes: 468242724143 ("gpiolib: cdev: refactor lineevent cleanup into lineevent_free")
Cc: stable@vger.kernel.org
Signed-off-by: Meng Li 
Reviewed-by: Kent Gibson 
Signed-off-by: Bartosz Golaszewski

gpio: tqmx86: fix uninitialized variable girq

2022-09-21T07:31:22+00:00

The commit 924610607f19 ("gpio: tpmx86: Move PM device over to
irq domain") adds a dereference of girq that may be uninitialized.

Fix this by moving irq_domain_set_pm_device into if true branch
as suggested by Marc Zyngier.

Fixes: 924610607f19 ("gpio: tpmx86: Move PM device over to irq domain")
Suggested-by: Marc Zyngier 
Signed-off-by: Dongliang Mu 
Acked-by: Marc Zyngier 
Signed-off-by: Bartosz Golaszewski

gpio: ftgpio010: Make irqchip immutable

2022-09-20T14:10:53+00:00

This turns the FTGPIO010 irqchip immutable.

Tested on the D-Link DIR-685.

Cc: Marc Zyngier 
Signed-off-by: Linus Walleij 
Acked-by: Marc Zyngier 
Signed-off-by: Bartosz Golaszewski

gpio: mockup: Fix potential resource leakage when register a chip

2022-09-20T14:07:15+00:00

If creation of software node fails, the locally allocated string
array is left unfreed. Free it on error path.

Fixes: 6fda593f3082 ("gpio: mockup: Convert to use software nodes")
Cc: stable@vger.kernel.org
Signed-off-by: Andy Shevchenko 
Signed-off-by: Bartosz Golaszewski

gpio: mockup: fix NULL pointer dereference when removing debugfs

2022-09-20T14:06:42+00:00

We now remove the device's debugfs entries when unbinding the driver.
This now causes a NULL-pointer dereference on module exit because the
platform devices are unregistered *after* the global debugfs directory
has been recursively removed. Fix it by unregistering the devices first.

Fixes: 303e6da99429 ("gpio: mockup: remove gpio debugfs when remove device")
Cc: Wei Yongjun 
Cc: stable@vger.kernel.org
Signed-off-by: Bartosz Golaszewski

Merge tag 'gpio-fixes-for-v6.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux

2022-09-16T19:58:17+00:00

Pull gpio fixes from Bartosz Golaszewski:

 - fix the level-low interrupt type support in gpio-mpc8xxx

 - convert another two drivers to using immutable irq chips

 - MAINTAINERS update

* tag 'gpio-fixes-for-v6.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
  gpio: mt7621: Make the irqchip immutable
  gpio: ixp4xx: Make irqchip immutable
  MAINTAINERS: Update HiSilicon GPIO Driver maintainer
  gpio: mpc8xxx: Fix support for IRQ_TYPE_LEVEL_LOW flow_type in mpc85xx

Merge tag 'pinctrl-v6.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

2022-09-16T14:06:05+00:00

Pull pin control fixes from Linus Walleij:
 "Nothing special, just driver fixes:

   - Fix IRQ wakeup and pins for UFS and SDC2 issues on the Qualcomm
     SC8180x

   - Fix the Rockchip driver to support interrupt on both rising and
     falling edges.

   - Name the Allwinner A100 R_PIO properly

   - Fix several issues with the Ocelot interrupts"

* tag 'pinctrl-v6.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinctrl: ocelot: Fix interrupt controller
  pinctrl: sunxi: Fix name for A100 R_PIO
  pinctrl: rockchip: Enhance support for IRQ_TYPE_EDGE_BOTH
  pinctrl: qcom: sc8180x: Fix wrong pin numbers
  pinctrl: qcom: sc8180x: Fix gpio_wakeirq_map