| Message ID | 20210913224926.1260726-3-heiko@sntech.de |
|---|---|
| State | Accepted |
| Commit | b22a4705e2e60f342b1b851c9ebdb3ea02f21f8f |
| Headers | show |
| Series | None | expand |
On Tue, Sep 14, 2021 at 12:49 AM Heiko Stuebner <heiko@sntech.de> wrote: > The function uses the newly introduced rockchip_gpio_readl_bit() > which directly returns the actual value of the requeste bit. > So using the existing bit-wise check for the bit inside the value > will always return 0. > > Fix this by dropping the bit manipulation on the result. > > 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> Yours, Linus Walleij
On Tue, Sep 14, 2021 at 12:49 AM Heiko Stuebner <heiko@sntech.de> wrote: > > The function uses the newly introduced rockchip_gpio_readl_bit() > which directly returns the actual value of the requeste bit. > So using the existing bit-wise check for the bit inside the value > will always return 0. > > Fix this by dropping the bit manipulation on the result. > > Fixes: 3bcbd1a85b68 ("gpio/rockchip: support next version gpio controller") > Signed-off-by: Heiko Stuebner <heiko@sntech.de> > --- Queued for fixes. Thanks! Bart
diff --git a/drivers/gpio/gpio-rockchip.c b/drivers/gpio/gpio-rockchip.c index 16d9bf7188e3..3335bd57761d 100644 --- a/drivers/gpio/gpio-rockchip.c +++ b/drivers/gpio/gpio-rockchip.c @@ -141,7 +141,7 @@ static int rockchip_gpio_get_direction(struct gpio_chip *chip, u32 data; data = rockchip_gpio_readl_bit(bank, offset, bank->gpio_regs->port_ddr); - if (data & BIT(offset)) + if (data) return GPIO_LINE_DIRECTION_OUT; return GPIO_LINE_DIRECTION_IN;
The function uses the newly introduced rockchip_gpio_readl_bit() which directly returns the actual value of the requeste bit. So using the existing bit-wise check for the bit inside the value will always return 0. Fix this by dropping the bit manipulation on the result. Fixes: 3bcbd1a85b68 ("gpio/rockchip: support next version gpio controller") Signed-off-by: Heiko Stuebner <heiko@sntech.de> --- drivers/gpio/gpio-rockchip.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)