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path: root/drivers/gpio/gpio-ftgpio010.c
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Diffstat (limited to 'drivers/gpio/gpio-ftgpio010.c')
-rw-r--r--drivers/gpio/gpio-ftgpio010.c30
1 files changed, 17 insertions, 13 deletions
diff --git a/drivers/gpio/gpio-ftgpio010.c b/drivers/gpio/gpio-ftgpio010.c
index b90a45c939a4..f77a965f5780 100644
--- a/drivers/gpio/gpio-ftgpio010.c
+++ b/drivers/gpio/gpio-ftgpio010.c
@@ -41,14 +41,12 @@
* struct ftgpio_gpio - Gemini GPIO state container
* @dev: containing device for this instance
* @gc: gpiochip for this instance
- * @irq: irqchip for this instance
* @base: remapped I/O-memory base
* @clk: silicon clock
*/
struct ftgpio_gpio {
struct device *dev;
struct gpio_chip gc;
- struct irq_chip irq;
void __iomem *base;
struct clk *clk;
};
@@ -70,6 +68,7 @@ static void ftgpio_gpio_mask_irq(struct irq_data *d)
val = readl(g->base + GPIO_INT_EN);
val &= ~BIT(irqd_to_hwirq(d));
writel(val, g->base + GPIO_INT_EN);
+ gpiochip_disable_irq(gc, irqd_to_hwirq(d));
}
static void ftgpio_gpio_unmask_irq(struct irq_data *d)
@@ -78,6 +77,7 @@ static void ftgpio_gpio_unmask_irq(struct irq_data *d)
struct ftgpio_gpio *g = gpiochip_get_data(gc);
u32 val;
+ gpiochip_enable_irq(gc, irqd_to_hwirq(d));
val = readl(g->base + GPIO_INT_EN);
val |= BIT(irqd_to_hwirq(d));
writel(val, g->base + GPIO_INT_EN);
@@ -221,6 +221,16 @@ static int ftgpio_gpio_set_config(struct gpio_chip *gc, unsigned int offset,
return 0;
}
+static const struct irq_chip ftgpio_irq_chip = {
+ .name = "FTGPIO010",
+ .irq_ack = ftgpio_gpio_ack_irq,
+ .irq_mask = ftgpio_gpio_mask_irq,
+ .irq_unmask = ftgpio_gpio_unmask_irq,
+ .irq_set_type = ftgpio_gpio_set_irq_type,
+ .flags = IRQCHIP_IMMUTABLE,
+ GPIOCHIP_IRQ_RESOURCE_HELPERS,
+};
+
static int ftgpio_gpio_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
@@ -277,14 +287,8 @@ static int ftgpio_gpio_probe(struct platform_device *pdev)
if (!IS_ERR(g->clk))
g->gc.set_config = ftgpio_gpio_set_config;
- g->irq.name = "FTGPIO010";
- g->irq.irq_ack = ftgpio_gpio_ack_irq;
- g->irq.irq_mask = ftgpio_gpio_mask_irq;
- g->irq.irq_unmask = ftgpio_gpio_unmask_irq;
- g->irq.irq_set_type = ftgpio_gpio_set_irq_type;
-
girq = &g->gc.irq;
- girq->chip = &g->irq;
+ gpio_irq_chip_set_chip(girq, &ftgpio_irq_chip);
girq->parent_handler = ftgpio_gpio_irq_handler;
girq->num_parents = 1;
girq->parents = devm_kcalloc(dev, 1, sizeof(*girq->parents),
@@ -315,8 +319,8 @@ static int ftgpio_gpio_probe(struct platform_device *pdev)
return 0;
dis_clk:
- if (!IS_ERR(g->clk))
- clk_disable_unprepare(g->clk);
+ clk_disable_unprepare(g->clk);
+
return ret;
}
@@ -324,8 +328,8 @@ static int ftgpio_gpio_remove(struct platform_device *pdev)
{
struct ftgpio_gpio *g = platform_get_drvdata(pdev);
- if (!IS_ERR(g->clk))
- clk_disable_unprepare(g->clk);
+ clk_disable_unprepare(g->clk);
+
return 0;
}