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path: root/drivers/gpio
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Diffstat (limited to 'drivers/gpio')
-rw-r--r--drivers/gpio/gpio-aspeed.c4
-rw-r--r--drivers/gpio/gpio-davinci.c10
-rw-r--r--drivers/gpio/gpiolib.c4
3 files changed, 10 insertions, 8 deletions
diff --git a/drivers/gpio/gpio-aspeed.c b/drivers/gpio/gpio-aspeed.c
index 04c03402db6d..ea40ad43a79b 100644
--- a/drivers/gpio/gpio-aspeed.c
+++ b/drivers/gpio/gpio-aspeed.c
@@ -406,6 +406,8 @@ static void __aspeed_gpio_set(struct gpio_chip *gc, unsigned int offset,
gpio->dcache[GPIO_BANK(offset)] = reg;
iowrite32(reg, addr);
+ /* Flush write */
+ ioread32(addr);
}
static void aspeed_gpio_set(struct gpio_chip *gc, unsigned int offset,
@@ -1191,7 +1193,7 @@ static int __init aspeed_gpio_probe(struct platform_device *pdev)
if (!gpio_id)
return -EINVAL;
- gpio->clk = of_clk_get(pdev->dev.of_node, 0);
+ gpio->clk = devm_clk_get_enabled(&pdev->dev, NULL);
if (IS_ERR(gpio->clk)) {
dev_warn(&pdev->dev,
"Failed to get clock from devicetree, debouncing disabled\n");
diff --git a/drivers/gpio/gpio-davinci.c b/drivers/gpio/gpio-davinci.c
index b54fef6b1e12..76b58c70b257 100644
--- a/drivers/gpio/gpio-davinci.c
+++ b/drivers/gpio/gpio-davinci.c
@@ -253,7 +253,7 @@ static int davinci_gpio_probe(struct platform_device *pdev)
* serve as EDMA event triggers.
*/
-static void gpio_irq_disable(struct irq_data *d)
+static void gpio_irq_mask(struct irq_data *d)
{
struct davinci_gpio_regs __iomem *g = irq2regs(d);
uintptr_t mask = (uintptr_t)irq_data_get_irq_handler_data(d);
@@ -262,7 +262,7 @@ static void gpio_irq_disable(struct irq_data *d)
writel_relaxed(mask, &g->clr_rising);
}
-static void gpio_irq_enable(struct irq_data *d)
+static void gpio_irq_unmask(struct irq_data *d)
{
struct davinci_gpio_regs __iomem *g = irq2regs(d);
uintptr_t mask = (uintptr_t)irq_data_get_irq_handler_data(d);
@@ -288,8 +288,8 @@ static int gpio_irq_type(struct irq_data *d, unsigned trigger)
static struct irq_chip gpio_irqchip = {
.name = "GPIO",
- .irq_enable = gpio_irq_enable,
- .irq_disable = gpio_irq_disable,
+ .irq_unmask = gpio_irq_unmask,
+ .irq_mask = gpio_irq_mask,
.irq_set_type = gpio_irq_type,
.flags = IRQCHIP_SET_TYPE_MASKED | IRQCHIP_SKIP_SET_WAKE,
};
@@ -472,7 +472,7 @@ static int davinci_gpio_irq_setup(struct platform_device *pdev)
return PTR_ERR(clk);
}
- if (chips->gpio_unbanked) {
+ if (!chips->gpio_unbanked) {
irq = devm_irq_alloc_descs(dev, -1, 0, ngpio, 0);
if (irq < 0) {
dev_err(dev, "Couldn't allocate IRQ numbers\n");
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index c6afbf434366..d5952ab7752c 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -114,12 +114,12 @@ const char *gpiod_get_label(struct gpio_desc *desc)
srcu_read_lock_held(&desc->gdev->desc_srcu));
if (test_bit(FLAG_USED_AS_IRQ, &flags))
- return label->str ?: "interrupt";
+ return label ? label->str : "interrupt";
if (!test_bit(FLAG_REQUESTED, &flags))
return NULL;
- return label->str;
+ return label ? label->str : NULL;
}
static void desc_free_label(struct rcu_head *rh)