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authorDeepak Nibade <dnibade@nvidia.com>2014-03-11 16:06:31 +0530
committerDeepak Nibade <dnibade@nvidia.com>2014-03-13 11:01:40 +0530
commit50a3a706c880500ec305e7af51bd5f2363a8cc44 (patch)
tree5048357e0f00ac220b671942e210d41d0c739a5c /drivers/gpio
parent40a66a5c983a8bf93a8860bd9500bfea83411e08 (diff)
parent6969595f011b46b49c3f1b9e0bd7da27768c1fd9 (diff)
Merge branch 'linux-3.10.33' into dev-kernel-3.10
Bug 1456092 Change-Id: I3021247ec68a3c2dddd9e98cde13d70a45191d53 Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Diffstat (limited to 'drivers/gpio')
-rw-r--r--drivers/gpio/gpio-msm-v2.c4
-rw-r--r--drivers/gpio/gpio-rcar.c2
-rw-r--r--drivers/gpio/gpio-twl4030.c15
3 files changed, 15 insertions, 6 deletions
diff --git a/drivers/gpio/gpio-msm-v2.c b/drivers/gpio/gpio-msm-v2.c
index dd2eddeb1e0c..500c4d19322b 100644
--- a/drivers/gpio/gpio-msm-v2.c
+++ b/drivers/gpio/gpio-msm-v2.c
@@ -248,7 +248,7 @@ static void msm_gpio_irq_mask(struct irq_data *d)
spin_lock_irqsave(&tlmm_lock, irq_flags);
writel(TARGET_PROC_NONE, GPIO_INTR_CFG_SU(gpio));
- clear_gpio_bits(INTR_RAW_STATUS_EN | INTR_ENABLE, GPIO_INTR_CFG(gpio));
+ clear_gpio_bits(BIT(INTR_RAW_STATUS_EN) | BIT(INTR_ENABLE), GPIO_INTR_CFG(gpio));
__clear_bit(gpio, msm_gpio.enabled_irqs);
spin_unlock_irqrestore(&tlmm_lock, irq_flags);
}
@@ -260,7 +260,7 @@ static void msm_gpio_irq_unmask(struct irq_data *d)
spin_lock_irqsave(&tlmm_lock, irq_flags);
__set_bit(gpio, msm_gpio.enabled_irqs);
- set_gpio_bits(INTR_RAW_STATUS_EN | INTR_ENABLE, GPIO_INTR_CFG(gpio));
+ set_gpio_bits(BIT(INTR_RAW_STATUS_EN) | BIT(INTR_ENABLE), GPIO_INTR_CFG(gpio));
writel(TARGET_PROC_SCORPION, GPIO_INTR_CFG_SU(gpio));
spin_unlock_irqrestore(&tlmm_lock, irq_flags);
}
diff --git a/drivers/gpio/gpio-rcar.c b/drivers/gpio/gpio-rcar.c
index c45ad478f462..f3c5d39f138e 100644
--- a/drivers/gpio/gpio-rcar.c
+++ b/drivers/gpio/gpio-rcar.c
@@ -333,7 +333,7 @@ static int gpio_rcar_probe(struct platform_device *pdev)
}
if (devm_request_irq(&pdev->dev, irq->start,
- gpio_rcar_irq_handler, 0, name, p)) {
+ gpio_rcar_irq_handler, IRQF_SHARED, name, p)) {
dev_err(&pdev->dev, "failed to request IRQ\n");
ret = -ENOENT;
goto err1;
diff --git a/drivers/gpio/gpio-twl4030.c b/drivers/gpio/gpio-twl4030.c
index ed1d10ae1999..28d987661146 100644
--- a/drivers/gpio/gpio-twl4030.c
+++ b/drivers/gpio/gpio-twl4030.c
@@ -300,7 +300,7 @@ static int twl_direction_in(struct gpio_chip *chip, unsigned offset)
if (offset < TWL4030_GPIO_MAX)
ret = twl4030_set_gpio_direction(offset, 1);
else
- ret = -EINVAL;
+ ret = -EINVAL; /* LED outputs can't be set as input */
if (!ret)
priv->direction &= ~BIT(offset);
@@ -354,11 +354,20 @@ static void twl_set(struct gpio_chip *chip, unsigned offset, int value)
static int twl_direction_out(struct gpio_chip *chip, unsigned offset, int value)
{
struct gpio_twl4030_priv *priv = to_gpio_twl4030(chip);
- int ret = -EINVAL;
+ int ret = 0;
mutex_lock(&priv->mutex);
- if (offset < TWL4030_GPIO_MAX)
+ if (offset < TWL4030_GPIO_MAX) {
ret = twl4030_set_gpio_direction(offset, 0);
+ if (ret) {
+ mutex_unlock(&priv->mutex);
+ return ret;
+ }
+ }
+
+ /*
+ * LED gpios i.e. offset >= TWL4030_GPIO_MAX are always output
+ */
priv->direction |= BIT(offset);
mutex_unlock(&priv->mutex);