gpio: amd-fch: Set proper output level for direction_output
Current amd_fch_gpio_direction_output implementation ignores the value argument, fix it so direction_output will set proper output level. Signed-off-by: Axel Lin <axel.lin@ingics.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Reviewed-by: Enrico Weigelt <info@metux.net> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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@ -65,9 +65,18 @@ static int amd_fch_gpio_direction_output(struct gpio_chip *gc,
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unsigned long flags;
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struct amd_fch_gpio_priv *priv = gpiochip_get_data(gc);
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void __iomem *ptr = amd_fch_gpio_addr(priv, gpio);
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u32 val;
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spin_lock_irqsave(&priv->lock, flags);
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writel_relaxed(readl_relaxed(ptr) | AMD_FCH_GPIO_FLAG_DIRECTION, ptr);
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val = readl_relaxed(ptr);
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if (value)
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val |= AMD_FCH_GPIO_FLAG_WRITE;
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else
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val &= ~AMD_FCH_GPIO_FLAG_WRITE;
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writel_relaxed(val | AMD_FCH_GPIO_FLAG_DIRECTION, ptr);
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spin_unlock_irqrestore(&priv->lock, flags);
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return 0;
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