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authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2021-02-25 19:33:20 +0300
committerBartosz Golaszewski <bgolaszewski@baylibre.com>2021-03-08 13:59:17 +0300
commiteb441337c7147514ab45036cadf09c3a71e4ce31 (patch)
tree9d26158bed79fe8a6d8e83e6a46c878a0286b657 /COPYING
parent809390219fb9c2421239afe5c9eb862d73978ba0 (diff)
downloadlinux-eb441337c7147514ab45036cadf09c3a71e4ce31.tar.xz
gpio: pca953x: Set IRQ type when handle Intel Galileo Gen 2
The commit 0ea683931adb ("gpio: dwapb: Convert driver to using the GPIO-lib-based IRQ-chip") indeliberately made a regression on how IRQ line from GPIO I²C expander is handled. I.e. it reveals that the quirk for Intel Galileo Gen 2 misses the part of setting IRQ type which previously was predefined by gpio-dwapb driver. Now, we have to reorganize the approach to call necessary parts, which can be done via ACPI_GPIO_QUIRK_ABSOLUTE_NUMBER quirk. Without this fix and with above mentioned change the kernel hangs on the first IRQ event with: gpio gpiochip3: Persistence not supported for GPIO 1 irq 32, desc: 62f8fb50, depth: 0, count: 0, unhandled: 0 ->handle_irq(): 41c7b0ab, handle_bad_irq+0x0/0x40 ->irq_data.chip(): e03f1e72, 0xc2539218 ->action(): 0ecc7e6f ->action->handler(): 8a3db21e, irq_default_primary_handler+0x0/0x10 IRQ_NOPROBE set unexpected IRQ trap at vector 20 Fixes: ba8c90c61847 ("gpio: pca953x: Override IRQ for one of the expanders on Galileo Gen 2") Depends-on: 0ea683931adb ("gpio: dwapb: Convert driver to using the GPIO-lib-based IRQ-chip") 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>
Diffstat (limited to 'COPYING')
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