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Subject[PATCH 4/4] gpio/nomadik: use genirq core to track enablement
Date
From: Linus Walleij <linus.walleij@linaro.org>

Currently the Nomadik GPIO driver tracks enabled/disabled interrupt
status with a local variable, switch to using the interrupt core.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
drivers/gpio/gpio-nomadik.c | 11 ++---------
1 files changed, 2 insertions(+), 9 deletions(-)

diff --git a/drivers/gpio/gpio-nomadik.c b/drivers/gpio/gpio-nomadik.c
index 4300b9f..f74a29f 100644
--- a/drivers/gpio/gpio-nomadik.c
+++ b/drivers/gpio/gpio-nomadik.c
@@ -58,7 +58,6 @@ struct nmk_gpio_chip {
u32 rwimsc;
u32 fwimsc;
u32 slpm;
- u32 enabled;
u32 pull_up;
};

@@ -605,11 +604,6 @@ static int nmk_gpio_irq_maskunmask(struct irq_data *d, bool enable)
if (!nmk_chip)
return -EINVAL;

- if (enable)
- nmk_chip->enabled |= bitmask;
- else
- nmk_chip->enabled &= ~bitmask;
-
clk_enable(nmk_chip->clk);
spin_lock_irqsave(&nmk_gpio_slpm_lock, flags);
spin_lock(&nmk_chip->lock);
@@ -653,7 +647,7 @@ static int nmk_gpio_irq_set_wake(struct irq_data *d, unsigned int on)
spin_lock_irqsave(&nmk_gpio_slpm_lock, flags);
spin_lock(&nmk_chip->lock);

- if (!(nmk_chip->enabled & bitmask))
+ if (irqd_irq_disabled(d))
__nmk_gpio_set_wake(nmk_chip, gpio, on);

if (on)
@@ -670,7 +664,7 @@ static int nmk_gpio_irq_set_wake(struct irq_data *d, unsigned int on)

static int nmk_gpio_irq_set_type(struct irq_data *d, unsigned int type)
{
- bool enabled;
+ bool enabled = !irqd_irq_disabled(d);
bool wake = irqd_is_wakeup_set(d);
int gpio;
struct nmk_gpio_chip *nmk_chip;
@@ -691,7 +685,6 @@ static int nmk_gpio_irq_set_type(struct irq_data *d, unsigned int type)
clk_enable(nmk_chip->clk);
spin_lock_irqsave(&nmk_chip->lock, flags);

- enabled = !!(nmk_chip->enabled & bitmask);
if (enabled)
__nmk_gpio_irq_modify(nmk_chip, gpio, NORMAL, false);

--
1.7.3.2


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