[PATCH AUTOSEL 4.9 1/3] pinctrl: rockchip: enable gpio pclk for rockchip_gpio_to_irq

[Sasha Levin]

From: Jianqun Xu <jay.xu at rock-chips.com>

[ 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 at rock-chips.com>
Reviewed-by: Heiko Stuebner <heiko at sntech.de>
Reviewed-by: Kever Yang<kever.yang at rock-chips.com>
Link: https://lore.kernel.org/r/20201013063731.3618-3-jay.xu@rock-chips.com
Signed-off-by: Linus Walleij <linus.walleij at linaro.org>
Signed-off-by: Sasha Levin <sashal at kernel.org>
---
 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 417cd3bd7e0c9..ee2dcea1e54b9 100644
--- a/drivers/pinctrl/pinctrl-rockchip.c
+++ b/drivers/pinctrl/pinctrl-rockchip.c
@@ -1815,7 +1815,9 @@ 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