diff options
| author | Heiko Stuebner <heiko@sntech.de> | 2021-09-14 00:49:23 +0200 |
|---|---|---|
| committer | Bartosz Golaszewski <brgl@bgdev.pl> | 2021-09-22 11:31:43 +0200 |
| commit | 0f562b7de99085935d76b00c41ab5caa26ff5c74 (patch) | |
| tree | d0e1a301015e855cd120b1bdcdbba71851440274 /drivers/gpio/gpio-rockchip.c | |
| parent | f6c35df22708438c94605b8896d2b4e4d5f342a3 (diff) | |
gpio/rockchip: extended debounce support is only available on v2
The gpio driver runs into issues on v1 gpio blocks, as the db_clk
and the whole extended debounce support is only ever defined on v2.
So checking for the IS_ERR on the db_clk is not enough, as it will
be NULL on v1.
Fix this by adding the needed condition for v2 first before checking
the existence of the db_clk.
This caused my rk3288-veyron-pinky to enter a reboot loop when it
tried to enable the power-key as adc-key device.
Fixes: 3bcbd1a85b68 ("gpio/rockchip: support next version gpio controller")
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Diffstat (limited to 'drivers/gpio/gpio-rockchip.c')
| -rw-r--r-- | drivers/gpio/gpio-rockchip.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpio/gpio-rockchip.c b/drivers/gpio/gpio-rockchip.c index 036b2d959503..16d9bf7188e3 100644 --- a/drivers/gpio/gpio-rockchip.c +++ b/drivers/gpio/gpio-rockchip.c @@ -195,7 +195,7 @@ static int rockchip_gpio_set_debounce(struct gpio_chip *gc, unsigned int cur_div_reg; u64 div; - if (!IS_ERR(bank->db_clk)) { + if (bank->gpio_type == GPIO_TYPE_V2 && !IS_ERR(bank->db_clk)) { div_debounce_support = true; freq = clk_get_rate(bank->db_clk); max_debounce = (GENMASK(23, 0) + 1) * 2 * 1000000 / freq; |