This is a note to let you know that I've just added the patch titled
gpio: gpio-wcove: fix irq pending status bit width
to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
gpio-gpio-wcove-fix-irq-pending-status-bit-width.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Thu Mar 22 14:40:23 CET 2018
From: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@xxxxxxxxxxxxxxx>
Date: Fri, 14 Apr 2017 10:29:25 -0700
Subject: gpio: gpio-wcove: fix irq pending status bit width
From: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@xxxxxxxxxxxxxxx>
[ Upstream commit 7c2d176fe3f8dce632b948f79c7e89916ffe2c70 ]
Whiskey cove PMIC has three GPIO banks with total number of 13 GPIO
pins. But when checking for the pending status, for_each_set_bit() uses
bit width of 7 and hence it only checks the status for first 7 GPIO pins
missing to check/clear the status of rest of the GPIO pins. This patch
fixes this issue.
Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@xxxxxxxxxxxxxxx>
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpio/gpio-wcove.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/gpio/gpio-wcove.c
+++ b/drivers/gpio/gpio-wcove.c
@@ -318,7 +318,7 @@ static irqreturn_t wcove_gpio_irq_handle
while (pending) {
/* One iteration is for all pending bits */
for_each_set_bit(gpio, (const unsigned long *)&pending,
- GROUP0_NR_IRQS) {
+ WCOVE_GPIO_NUM) {
offset = (gpio > GROUP0_NR_IRQS) ? 1 : 0;
mask = (offset == 1) ? BIT(gpio - GROUP0_NR_IRQS) :
BIT(gpio);
Patches currently in stable-queue which might be from sathyanarayanan.kuppuswamy@xxxxxxxxxxxxxxx are
queue-4.9/gpio-gpio-wcove-fix-gpio-irq-status-mask.patch
queue-4.9/gpio-gpio-wcove-fix-irq-pending-status-bit-width.patch