4.9-stable review patch. If anyone has any objections, please let me know.
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From: Kuppuswamy Sathyanarayanan sathyanarayanan.kuppuswamy@linux.intel.com
[ 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@linux.intel.com Signed-off-by: Linus Walleij linus.walleij@linaro.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- 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);