Commit e9133760 authored by Jamie Lentin's avatar Jamie Lentin Committed by Linus Walleij

mvebu-gpio: Disable blinking when enabling a GPIO for output

The plat-orion GPIO driver would disable any pin blinking whenever
using a pin for output. Do the same here, as a blinking LED will
continue to blink regardless of what the GPIO pin level is.
Signed-off-by: default avatarJamie Lentin <jm@lentin.co.uk>
Acked-by: default avatarThomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent 77b67063
...@@ -92,6 +92,11 @@ static inline void __iomem *mvebu_gpioreg_out(struct mvebu_gpio_chip *mvchip) ...@@ -92,6 +92,11 @@ static inline void __iomem *mvebu_gpioreg_out(struct mvebu_gpio_chip *mvchip)
return mvchip->membase + GPIO_OUT_OFF; return mvchip->membase + GPIO_OUT_OFF;
} }
static inline void __iomem *mvebu_gpioreg_blink(struct mvebu_gpio_chip *mvchip)
{
return mvchip->membase + GPIO_BLINK_EN_OFF;
}
static inline void __iomem *mvebu_gpioreg_io_conf(struct mvebu_gpio_chip *mvchip) static inline void __iomem *mvebu_gpioreg_io_conf(struct mvebu_gpio_chip *mvchip)
{ {
return mvchip->membase + GPIO_IO_CONF_OFF; return mvchip->membase + GPIO_IO_CONF_OFF;
...@@ -206,6 +211,23 @@ static int mvebu_gpio_get(struct gpio_chip *chip, unsigned pin) ...@@ -206,6 +211,23 @@ static int mvebu_gpio_get(struct gpio_chip *chip, unsigned pin)
return (u >> pin) & 1; return (u >> pin) & 1;
} }
static void mvebu_gpio_blink(struct gpio_chip *chip, unsigned pin, int value)
{
struct mvebu_gpio_chip *mvchip =
container_of(chip, struct mvebu_gpio_chip, chip);
unsigned long flags;
u32 u;
spin_lock_irqsave(&mvchip->lock, flags);
u = readl_relaxed(mvebu_gpioreg_blink(mvchip));
if (value)
u |= 1 << pin;
else
u &= ~(1 << pin);
writel_relaxed(u, mvebu_gpioreg_blink(mvchip));
spin_unlock_irqrestore(&mvchip->lock, flags);
}
static int mvebu_gpio_direction_input(struct gpio_chip *chip, unsigned pin) static int mvebu_gpio_direction_input(struct gpio_chip *chip, unsigned pin)
{ {
struct mvebu_gpio_chip *mvchip = struct mvebu_gpio_chip *mvchip =
...@@ -244,6 +266,7 @@ static int mvebu_gpio_direction_output(struct gpio_chip *chip, unsigned pin, ...@@ -244,6 +266,7 @@ static int mvebu_gpio_direction_output(struct gpio_chip *chip, unsigned pin,
if (ret) if (ret)
return ret; return ret;
mvebu_gpio_blink(chip, pin, 0);
mvebu_gpio_set(chip, pin, value); mvebu_gpio_set(chip, pin, value);
spin_lock_irqsave(&mvchip->lock, flags); spin_lock_irqsave(&mvchip->lock, flags);
......
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