[PATCH AUTOSEL 5.4 01/11] pinctrl: rockchip: enable gpio pclk for rockchip_gpio_to_irq

From: Sasha Levin
Date: Tue Nov 17 2020 - 07:58:09 EST


From: Jianqun Xu <jay.xu@xxxxxxxxxxxxxx>

[ 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>
---
drivers/pinctrl/pinctrl-rockchip.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c
index 1bd8840e11a6e..930edfc32f597 100644
--- a/drivers/pinctrl/pinctrl-rockchip.c
+++ b/drivers/pinctrl/pinctrl-rockchip.c
@@ -2811,7 +2811,9 @@ 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;
}
--
2.27.0