Łukasz Bartosik 752d9eafc6 pinctrl: intel: fix unexpected interrupt ... commit e986f0e602 upstream. ASUS Chromebook C223 with Celeron N3350 crashes sometimes during cold booot. Inspection of the kernel log showed that it gets into an inifite loop logging the following message: ->handle_irq(): 000000009cdb51e8, handle_bad_irq+0x0/0x251 ->irq_data.chip(): 000000005ec212a7, 0xffffa043009d8e7 ->action(): 00000 IRQ_NOPROBE set unexpected IRQ trap at vector 7c The issue happens during cold boot but only if cold boot happens at most several dozen seconds after Chromebook is powered off. For longer intervals between power off and power on (cold boot) the issue does not reproduce. The unexpected interrupt is sourced from INT3452 GPIO pin which is used for SD card detect. Investigation relevealed that when the interval between power off and power on (cold boot) is less than several dozen seconds then values of INT3452 GPIO interrupt enable and interrupt pending registers survive power off and power on sequence and interrupt for SD card detect pin is enabled and pending during probe of SD controller which causes the unexpected IRQ message. "Intel Pentium and Celeron Processor N- and J- Series" volume 3 doc mentions that GPIO interrupt enable and status registers default value is 0x0. The fix clears INT3452 GPIO interrupt enabled and interrupt pending registers in its probe function. Fixes: 7981c0015a ("pinctrl: intel: Add Intel Sunrisepoint pin controller and GPIO support") Signed-off-by: Łukasz Bartosik <lb@semihalf.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-02-08 18:30:39 +01:00
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Kconfig	pinctrl: cherryview: Switch to use intel_pinctrl_get_soc_data()	2020-08-20 12:37:07 +03:00
Makefile	pinctrl: intel: Add Intel Emmitsburg pin controller support	2020-07-21 11:44:21 +03:00
pinctrl-baytrail.c	pinctrl: baytrail: Avoid clearing debounce value when turning it off	2020-11-16 12:07:57 +02:00
pinctrl-broxton.c
pinctrl-cannonlake.c	pinctrl: cannonlake: Modify COMMUNITY macros to be consistent	2020-09-30 11:43:56 +02:00
pinctrl-cedarfork.c
pinctrl-cherryview.c	pinctrl: cherryview: Preserve CHV_PADCTRL1_INVRXTX_TXDATA flag on GPIOs	2020-09-07 11:57:19 +03:00
pinctrl-denverton.c
pinctrl-emmitsburg.c	pinctrl: intel: Add Intel Emmitsburg pin controller support	2020-07-21 11:44:21 +03:00
pinctrl-geminilake.c
pinctrl-icelake.c
pinctrl-intel.c	pinctrl: intel: fix unexpected interrupt	2022-02-08 18:30:39 +01:00
pinctrl-intel.h	pinctrl: intel: Update header block to reflect direct dependencies	2020-08-20 12:37:07 +03:00
pinctrl-jasperlake.c	pinctrl: jasperlake: Fix HOSTSW_OWN offset	2020-11-16 12:07:57 +02:00
pinctrl-lewisburg.c	pinctrl: lewisburg: Update number of pins in community	2021-04-28 13:39:59 +02:00
pinctrl-lynxpoint.c	pinctrl: lynxpoint: Drop no-op ACPI_PTR() call	2020-06-22 13:55:36 +03:00
pinctrl-merrifield.c	pinctrl: merrifield: Set default bias in case no particular value given	2020-11-16 12:07:57 +02:00
pinctrl-sunrisepoint.c	pinctrl: sunrisepoint: Modify COMMUNITY macros to be consistent	2020-09-30 11:43:56 +02:00
pinctrl-tigerlake.c	pinctrl: tigerlake: Fix GPIO mapping for newer version of software	2021-08-18 08:59:09 +02:00