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-rw-r--r--target/linux/ramips/patches-3.14/999-gpi_irq.patch42
1 files changed, 42 insertions, 0 deletions
diff --git a/target/linux/ramips/patches-3.14/999-gpi_irq.patch b/target/linux/ramips/patches-3.14/999-gpi_irq.patch
new file mode 100644
index 0000000000..a421570672
--- /dev/null
+++ b/target/linux/ramips/patches-3.14/999-gpi_irq.patch
@@ -0,0 +1,42 @@
+--- a/drivers/gpio/gpio-ralink.c
++++ b/drivers/gpio/gpio-ralink.c
+@@ -148,14 +148,15 @@
+ {
+ struct ralink_gpio_chip *rg;
+ unsigned long flags;
+- u32 val;
++ u32 rise, fall;
+
+ rg = (struct ralink_gpio_chip *) d->domain->host_data;
+- val = rt_gpio_r32(rg, GPIO_REG_RENA);
++ rise = rt_gpio_r32(rg, GPIO_REG_RENA);
++ fall = rt_gpio_r32(rg, GPIO_REG_FENA);
+
+ spin_lock_irqsave(&rg->lock, flags);
+- rt_gpio_w32(rg, GPIO_REG_RENA, val | (BIT(d->hwirq) & rg->rising));
+- rt_gpio_w32(rg, GPIO_REG_FENA, val | (BIT(d->hwirq) & rg->falling));
++ rt_gpio_w32(rg, GPIO_REG_RENA, rise | (BIT(d->hwirq) & rg->rising));
++ rt_gpio_w32(rg, GPIO_REG_FENA, fall | (BIT(d->hwirq) & rg->falling));
+ spin_unlock_irqrestore(&rg->lock, flags);
+ }
+
+@@ -163,14 +164,15 @@
+ {
+ struct ralink_gpio_chip *rg;
+ unsigned long flags;
+- u32 val;
++ u32 rise, fall;
+
+ rg = (struct ralink_gpio_chip *) d->domain->host_data;
+- val = rt_gpio_r32(rg, GPIO_REG_RENA);
++ rise = rt_gpio_r32(rg, GPIO_REG_RENA);
++ fall = rt_gpio_r32(rg, GPIO_REG_FENA);
+
+ spin_lock_irqsave(&rg->lock, flags);
+- rt_gpio_w32(rg, GPIO_REG_FENA, val & ~BIT(d->hwirq));
+- rt_gpio_w32(rg, GPIO_REG_RENA, val & ~BIT(d->hwirq));
++ rt_gpio_w32(rg, GPIO_REG_FENA, fall & ~BIT(d->hwirq));
++ rt_gpio_w32(rg, GPIO_REG_RENA, rise & ~BIT(d->hwirq));
+ spin_unlock_irqrestore(&rg->lock, flags);
+ }
+