diff options
Diffstat (limited to 'drivers/gpio/gpio-vf610.c')
| -rw-r--r-- | drivers/gpio/gpio-vf610.c | 31 |
1 files changed, 25 insertions, 6 deletions
diff --git a/drivers/gpio/gpio-vf610.c b/drivers/gpio/gpio-vf610.c index 07e5e6323e86..27eff741fe9a 100644 --- a/drivers/gpio/gpio-vf610.c +++ b/drivers/gpio/gpio-vf610.c @@ -97,7 +97,7 @@ static inline u32 vf610_gpio_readl(void __iomem *reg) static int vf610_gpio_get(struct gpio_chip *gc, unsigned int gpio) { struct vf610_gpio_port *port = gpiochip_get_data(gc); - unsigned long mask = BIT(gpio); + u32 mask = BIT(gpio); unsigned long offset = GPIO_PDIR; if (port->sdata->have_paddr) { @@ -112,16 +112,16 @@ static int vf610_gpio_get(struct gpio_chip *gc, unsigned int gpio) static void vf610_gpio_set(struct gpio_chip *gc, unsigned int gpio, int val) { struct vf610_gpio_port *port = gpiochip_get_data(gc); - unsigned long mask = BIT(gpio); + u32 mask = BIT(gpio); unsigned long offset = val ? GPIO_PSOR : GPIO_PCOR; vf610_gpio_writel(mask, port->gpio_base + offset); } -static int vf610_gpio_direction_input(struct gpio_chip *chip, unsigned gpio) +static int vf610_gpio_direction_input(struct gpio_chip *chip, unsigned int gpio) { struct vf610_gpio_port *port = gpiochip_get_data(chip); - unsigned long mask = BIT(gpio); + u32 mask = BIT(gpio); u32 val; if (port->sdata->have_paddr) { @@ -133,11 +133,11 @@ static int vf610_gpio_direction_input(struct gpio_chip *chip, unsigned gpio) return pinctrl_gpio_direction_input(chip, gpio); } -static int vf610_gpio_direction_output(struct gpio_chip *chip, unsigned gpio, +static int vf610_gpio_direction_output(struct gpio_chip *chip, unsigned int gpio, int value) { struct vf610_gpio_port *port = gpiochip_get_data(chip); - unsigned long mask = BIT(gpio); + u32 mask = BIT(gpio); u32 val; vf610_gpio_set(chip, gpio, value); @@ -151,6 +151,19 @@ static int vf610_gpio_direction_output(struct gpio_chip *chip, unsigned gpio, return pinctrl_gpio_direction_output(chip, gpio); } +static int vf610_gpio_get_direction(struct gpio_chip *gc, unsigned int gpio) +{ + struct vf610_gpio_port *port = gpiochip_get_data(gc); + u32 mask = BIT(gpio); + + mask &= vf610_gpio_readl(port->gpio_base + GPIO_PDDR); + + if (mask) + return GPIO_LINE_DIRECTION_OUT; + + return GPIO_LINE_DIRECTION_IN; +} + static void vf610_gpio_irq_handler(struct irq_desc *desc) { struct vf610_gpio_port *port = @@ -362,6 +375,12 @@ static int vf610_gpio_probe(struct platform_device *pdev) gc->get = vf610_gpio_get; gc->direction_output = vf610_gpio_direction_output; gc->set = vf610_gpio_set; + /* + * only IP has Port Data Direction Register(PDDR) can + * support get direction + */ + if (port->sdata->have_paddr) + gc->get_direction = vf610_gpio_get_direction; /* Mask all GPIO interrupts */ for (i = 0; i < gc->ngpio; i++) |