The default output state may be different to request, change the configuration sequence to avoid glitch.
Signed-off-by: Jim Liu JJLIU0@nuvoton.com --- drivers/gpio/npcm_gpio.c | 6 +++--- drivers/pinctrl/nuvoton/pinctrl-npcm7xx.c | 4 ++-- drivers/pinctrl/nuvoton/pinctrl-npcm8xx.c | 4 ++-- 3 files changed, 7 insertions(+), 7 deletions(-)
diff --git a/drivers/gpio/npcm_gpio.c b/drivers/gpio/npcm_gpio.c index 8afd57fa8e..98e5dc79c1 100644 --- a/drivers/gpio/npcm_gpio.c +++ b/drivers/gpio/npcm_gpio.c @@ -37,14 +37,14 @@ static int npcm_gpio_direction_output(struct udevice *dev, unsigned int offset, { struct npcm_gpio_priv *priv = dev_get_priv(dev);
- clrbits_le32(priv->base + GPIO_IEM, BIT(offset)); - writel(BIT(offset), priv->base + GPIO_OES); - if (value) setbits_le32(priv->base + GPIO_DOUT, BIT(offset)); else clrbits_le32(priv->base + GPIO_DOUT, BIT(offset));
+ clrbits_le32(priv->base + GPIO_IEM, BIT(offset)); + writel(BIT(offset), priv->base + GPIO_OES); + return 0; }
diff --git a/drivers/pinctrl/nuvoton/pinctrl-npcm7xx.c b/drivers/pinctrl/nuvoton/pinctrl-npcm7xx.c index 1ad8bfbd88..92513822e7 100644 --- a/drivers/pinctrl/nuvoton/pinctrl-npcm7xx.c +++ b/drivers/pinctrl/nuvoton/pinctrl-npcm7xx.c @@ -1552,12 +1552,12 @@ static int npcm7xx_pinconf_set(struct udevice *dev, unsigned int pin, setbits_le32(base + NPCM7XX_GP_N_OES, BIT(gpio)); case PIN_CONFIG_OUTPUT: dev_dbg(dev, "set pin %d output %d\n", pin, arg); - clrbits_le32(base + NPCM7XX_GP_N_IEM, BIT(gpio)); - setbits_le32(base + NPCM7XX_GP_N_OES, BIT(gpio)); if (arg) setbits_le32(base + NPCM7XX_GP_N_DOUT, BIT(gpio)); else clrbits_le32(base + NPCM7XX_GP_N_DOUT, BIT(gpio)); + clrbits_le32(base + NPCM7XX_GP_N_IEM, BIT(gpio)); + setbits_le32(base + NPCM7XX_GP_N_OES, BIT(gpio)); break; case PIN_CONFIG_DRIVE_PUSH_PULL: dev_dbg(dev, "set pin %d push pull\n", pin); diff --git a/drivers/pinctrl/nuvoton/pinctrl-npcm8xx.c b/drivers/pinctrl/nuvoton/pinctrl-npcm8xx.c index 0ec47e9577..f18be08518 100644 --- a/drivers/pinctrl/nuvoton/pinctrl-npcm8xx.c +++ b/drivers/pinctrl/nuvoton/pinctrl-npcm8xx.c @@ -900,12 +900,12 @@ static int npcm8xx_pinconf_set(struct udevice *dev, unsigned int selector, setbits_le32(base + GPIO_OES, BIT(gpio)); case PIN_CONFIG_OUTPUT: dev_dbg(dev, "set pin %d output %d\n", pin, arg); - clrbits_le32(base + GPIO_IEM, BIT(gpio)); - setbits_le32(base + GPIO_OES, BIT(gpio)); if (arg) setbits_le32(base + GPIO_DOUT, BIT(gpio)); else clrbits_le32(base + GPIO_DOUT, BIT(gpio)); + clrbits_le32(base + GPIO_IEM, BIT(gpio)); + setbits_le32(base + GPIO_OES, BIT(gpio)); break; case PIN_CONFIG_DRIVE_PUSH_PULL: dev_dbg(dev, "set pin %d push pull\n", pin);