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path: root/drivers/gpio/langwell_gpio.c
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Diffstat (limited to 'drivers/gpio/langwell_gpio.c')
-rw-r--r--drivers/gpio/langwell_gpio.c11
1 files changed, 1 insertions, 10 deletions
diff --git a/drivers/gpio/langwell_gpio.c b/drivers/gpio/langwell_gpio.c
index 5711ce5353c..4baf3d7d0f8 100644
--- a/drivers/gpio/langwell_gpio.c
+++ b/drivers/gpio/langwell_gpio.c
@@ -144,13 +144,6 @@ static int lnw_irq_type(unsigned irq, unsigned type)
static void lnw_irq_unmask(unsigned irq)
{
- struct lnw_gpio *lnw = get_irq_chip_data(irq);
- u32 gpio = irq - lnw->irq_base;
- u8 reg = gpio / 32;
- void __iomem *gedr;
-
- gedr = (void __iomem *)(&lnw->reg_base->GEDR[reg]);
- writel(BIT(gpio % 32), gedr);
};
static void lnw_irq_mask(unsigned irq)
@@ -183,13 +176,11 @@ static void lnw_irq_handler(unsigned irq, struct irq_desc *desc)
gedr_v = readl(gedr);
if (!gedr_v)
continue;
- for (gpio = reg*32; gpio < reg*32+32; gpio++) {
- gedr_v = readl(gedr);
+ for (gpio = reg*32; gpio < reg*32+32; gpio++)
if (gedr_v & BIT(gpio % 32)) {
pr_debug("pin %d triggered\n", gpio);
generic_handle_irq(lnw->irq_base + gpio);
}
- }
/* clear the edge detect status bit */
writel(gedr_v, gedr);
}