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path: root/drivers/pinctrl/spear/pinctrl-plgpio.c
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Diffstat (limited to 'drivers/pinctrl/spear/pinctrl-plgpio.c')
-rw-r--r--drivers/pinctrl/spear/pinctrl-plgpio.c25
1 files changed, 15 insertions, 10 deletions
diff --git a/drivers/pinctrl/spear/pinctrl-plgpio.c b/drivers/pinctrl/spear/pinctrl-plgpio.c
index ada401ef4342..1ec22010a3f9 100644
--- a/drivers/pinctrl/spear/pinctrl-plgpio.c
+++ b/drivers/pinctrl/spear/pinctrl-plgpio.c
@@ -181,37 +181,39 @@ static int plgpio_get_value(struct gpio_chip *chip, unsigned offset)
return is_plgpio_set(plgpio->regmap, offset, plgpio->regs.rdata);
}
-static void plgpio_set_value(struct gpio_chip *chip, unsigned offset, int value)
+static int plgpio_set_value(struct gpio_chip *chip, unsigned int offset,
+ int value)
{
struct plgpio *plgpio = gpiochip_get_data(chip);
if (offset >= chip->ngpio)
- return;
+ return -EINVAL;
/* get correct offset for "offset" pin */
if (plgpio->p2o && (plgpio->p2o_regs & PTO_WDATA_REG)) {
offset = plgpio->p2o(offset);
if (offset == -1)
- return;
+ return -EINVAL;
}
if (value)
plgpio_reg_set(plgpio->regmap, offset, plgpio->regs.wdata);
else
plgpio_reg_reset(plgpio->regmap, offset, plgpio->regs.wdata);
+
+ return 0;
}
static int plgpio_request(struct gpio_chip *chip, unsigned offset)
{
struct plgpio *plgpio = gpiochip_get_data(chip);
- int gpio = chip->base + offset;
unsigned long flags;
int ret = 0;
if (offset >= chip->ngpio)
return -EINVAL;
- ret = pinctrl_gpio_request(gpio);
+ ret = pinctrl_gpio_request(chip, offset);
if (ret)
return ret;
@@ -249,14 +251,13 @@ err1:
if (!IS_ERR(plgpio->clk))
clk_disable(plgpio->clk);
err0:
- pinctrl_gpio_free(gpio);
+ pinctrl_gpio_free(chip, offset);
return ret;
}
static void plgpio_free(struct gpio_chip *chip, unsigned offset)
{
struct plgpio *plgpio = gpiochip_get_data(chip);
- int gpio = chip->base + offset;
unsigned long flags;
if (offset >= chip->ngpio)
@@ -280,7 +281,7 @@ disable_clk:
if (!IS_ERR(plgpio->clk))
clk_disable(plgpio->clk);
- pinctrl_gpio_free(gpio);
+ pinctrl_gpio_free(chip, offset);
}
/* PLGPIO IRQ */
@@ -301,6 +302,7 @@ static void plgpio_irq_disable(struct irq_data *d)
spin_lock_irqsave(&plgpio->lock, flags);
plgpio_reg_set(plgpio->regmap, offset, plgpio->regs.ie);
spin_unlock_irqrestore(&plgpio->lock, flags);
+ gpiochip_disable_irq(gc, irqd_to_hwirq(d));
}
static void plgpio_irq_enable(struct irq_data *d)
@@ -317,6 +319,7 @@ static void plgpio_irq_enable(struct irq_data *d)
return;
}
+ gpiochip_enable_irq(gc, irqd_to_hwirq(d));
spin_lock_irqsave(&plgpio->lock, flags);
plgpio_reg_reset(plgpio->regmap, offset, plgpio->regs.ie);
spin_unlock_irqrestore(&plgpio->lock, flags);
@@ -356,11 +359,13 @@ static int plgpio_irq_set_type(struct irq_data *d, unsigned trigger)
return 0;
}
-static struct irq_chip plgpio_irqchip = {
+static const struct irq_chip plgpio_irqchip = {
.name = "PLGPIO",
.irq_enable = plgpio_irq_enable,
.irq_disable = plgpio_irq_disable,
.irq_set_type = plgpio_irq_set_type,
+ .flags = IRQCHIP_IMMUTABLE,
+ GPIOCHIP_IRQ_RESOURCE_HELPERS,
};
static void plgpio_irq_handler(struct irq_desc *desc)
@@ -595,7 +600,7 @@ static int plgpio_probe(struct platform_device *pdev)
struct gpio_irq_chip *girq;
girq = &plgpio->chip.irq;
- girq->chip = &plgpio_irqchip;
+ gpio_irq_chip_set_chip(girq, &plgpio_irqchip);
girq->parent_handler = plgpio_irq_handler;
girq->num_parents = 1;
girq->parents = devm_kcalloc(&pdev->dev, 1,