Am Montag, 31. August 2020, 10:47:51 CEST schrieb Jianqun Xu: > Add valid check for gpio bank.
As this obviously fixes a problem you encountered please elaborate a bit more. Just so that people reading the log later understand when this issue surfaced. Also - maybe even more important - why is this limited to PIN_CONFIG_OUTPUT? Like when the whole bank is not valid, you should be able to return the -ENOTSUPP even before entering the "for" loop in these functions. > Change-Id: Ib03e2910a7316bd61df18236151e371c4d04077a Please remove the changeId. Thanks Heiko > Signed-off-by: Jianqun Xu <jay...@rock-chips.com> > --- > drivers/pinctrl/pinctrl-rockchip.c | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/drivers/pinctrl/pinctrl-rockchip.c > b/drivers/pinctrl/pinctrl-rockchip.c > index 265d64b8c4f5..6080573155f6 100644 > --- a/drivers/pinctrl/pinctrl-rockchip.c > +++ b/drivers/pinctrl/pinctrl-rockchip.c > @@ -2687,6 +2687,9 @@ static int rockchip_pinconf_set(struct pinctrl_dev > *pctldev, unsigned int pin, > return rc; > break; > case PIN_CONFIG_OUTPUT: > + if (!bank->valid) > + return -ENOTSUPP; > + > rockchip_gpio_set(&bank->gpio_chip, > pin - bank->pin_base, arg); > rc = _rockchip_pmx_gpio_set_direction(&bank->gpio_chip, > @@ -2752,6 +2755,9 @@ static int rockchip_pinconf_get(struct pinctrl_dev > *pctldev, unsigned int pin, > arg = 1; > break; > case PIN_CONFIG_OUTPUT: > + if (!bank->valid) > + return -ENOTSUPP; > + > rc = rockchip_get_mux(bank, pin - bank->pin_base); > if (rc != RK_FUNC_GPIO) > return -EINVAL; >
