This is a note to let you know that I've just added the patch titled
pinctrl: rockchip: enable gpio pclk for rockchip_gpio_to_irq
to the 4.4-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:
pinctrl-rockchip-enable-gpio-pclk-for-rockchip_gpio_.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 99b04d89a9a2211ffb06d1051f8bd4431aeec2c0
Author: Jianqun Xu <jay.xu@xxxxxxxxxxxxxx>
Date: Tue Oct 13 14:37:30 2020 +0800
pinctrl: rockchip: enable gpio pclk for rockchip_gpio_to_irq
[ Upstream commit 63fbf8013b2f6430754526ef9594f229c7219b1f ]
There need to enable pclk_gpio when do irq_create_mapping, since it will
do access to gpio controller.
Signed-off-by: Jianqun Xu <jay.xu@xxxxxxxxxxxxxx>
Reviewed-by: Heiko Stuebner <heiko@xxxxxxxxx>
Reviewed-by: Kever Yang<kever.yang@xxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20201013063731.3618-3-jay.xu@xxxxxxxxxxxxxx
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c
index 616055b5e9967..eba400df82154 100644
--- a/drivers/pinctrl/pinctrl-rockchip.c
+++ b/drivers/pinctrl/pinctrl-rockchip.c
@@ -1445,7 +1445,9 @@ static int rockchip_gpio_to_irq(struct gpio_chip *gc, unsigned offset)
if (!bank->domain)
return -ENXIO;
+ clk_enable(bank->clk);
virq = irq_create_mapping(bank->domain, offset);
+ clk_disable(bank->clk);
return (virq) ? : -ENXIO;
}
