The patch below does not apply to the 4.19-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 63bdef6cd6941917c823b9cc9aa0219d19fcb716 Mon Sep 17 00:00:00 2001
From: Hans de Goede hdegoede@redhat.com Date: Fri, 18 Oct 2019 11:08:42 +0200 Subject: [PATCH] pinctrl: cherryview: Fix irq_valid_mask calculation
Commit 03c4749dd6c7 ("gpio / ACPI: Drop unnecessary ACPI GPIO to Linux GPIO translation") has made the cherryview gpio numbers sparse, to get a 1:1 mapping between ACPI pin numbers and gpio numbers in Linux.
This has greatly simplified things, but the code setting the irq_valid_mask was not updated for this, so the valid mask is still in the old "compressed" numbering with the gaps in the pin numbers skipped, which is wrong as irq_valid_mask needs to be expressed in gpio numbers.
This results in the following error on devices using pin 24 (0x0018) on the north GPIO controller as an ACPI event source:
[ 0.422452] cherryview-pinctrl INT33FF:01: Failed to translate GPIO to IRQ
This has been reported (by email) to be happening on a Caterpillar CAT T20 tablet and I've reproduced this myself on a Medion Akoya e2215t 2-in-1.
This commit uses the pin number instead of the compressed index into community->pins to clear the correct bits in irq_valid_mask for GPIOs using GPEs for interrupts, fixing these errors and in case of the Medion Akoya e2215t also fixing the LID switch not working.
Cc: stable@vger.kernel.org Fixes: 03c4749dd6c7 ("gpio / ACPI: Drop unnecessary ACPI GPIO to Linux GPIO translation") Signed-off-by: Hans de Goede hdegoede@redhat.com Reviewed-by: Andy Shevchenko andriy.shevchenko@linux.intel.com Signed-off-by: Mika Westerberg mika.westerberg@linux.intel.com
diff --git a/drivers/pinctrl/intel/pinctrl-cherryview.c b/drivers/pinctrl/intel/pinctrl-cherryview.c index c6251eac8946..c31266e70559 100644 --- a/drivers/pinctrl/intel/pinctrl-cherryview.c +++ b/drivers/pinctrl/intel/pinctrl-cherryview.c @@ -1559,7 +1559,7 @@ static void chv_init_irq_valid_mask(struct gpio_chip *chip, intsel >>= CHV_PADCTRL0_INTSEL_SHIFT;
if (intsel >= community->nirqs) - clear_bit(i, valid_mask); + clear_bit(desc->number, valid_mask); } }