diff options
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpio-amd-fch.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/gpio/gpio-amd-fch.c b/drivers/gpio/gpio-amd-fch.c index 4c585d4e7e74..38c3f4a3d4aa 100644 --- a/drivers/gpio/gpio-amd-fch.c +++ b/drivers/gpio/gpio-amd-fch.c @@ -65,9 +65,18 @@ static int amd_fch_gpio_direction_output(struct gpio_chip *gc, unsigned long flags; struct amd_fch_gpio_priv *priv = gpiochip_get_data(gc); void __iomem *ptr = amd_fch_gpio_addr(priv, gpio); + u32 val; spin_lock_irqsave(&priv->lock, flags); - writel_relaxed(readl_relaxed(ptr) | AMD_FCH_GPIO_FLAG_DIRECTION, ptr); + + val = readl_relaxed(ptr); + if (value) + val |= AMD_FCH_GPIO_FLAG_WRITE; + else + val &= ~AMD_FCH_GPIO_FLAG_WRITE; + + writel_relaxed(val | AMD_FCH_GPIO_FLAG_DIRECTION, ptr); + spin_unlock_irqrestore(&priv->lock, flags); return 0; |