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authorLad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>2021-12-22 17:19:15 +0000
committerBartosz Golaszewski <brgl@bgdev.pl>2022-01-05 09:57:20 +0100
commitf1ff272c60eded6ba1aa4c64a313910ce6e85bff (patch)
tree9399f4d3b19f8a61c73b3f2964a8ae6338c5a795 /drivers/gpio/gpio-rcar.c
parent6408693f95275ffec5327d97a4ed22def8b20692 (diff)
gpio: rcar: Use platform_get_irq() to get the interrupt
platform_get_resource(pdev, IORESOURCE_IRQ, ..) relies on static allocation of IRQ resources in DT core code, this causes an issue when using hierarchical interrupt domains using "interrupts" property in the node as this bypassed the hierarchical setup and messed up the irq chaining. In preparation for removal of static setup of IRQ resource from DT core code use platform_get_irq(). Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Diffstat (limited to 'drivers/gpio/gpio-rcar.c')
-rw-r--r--drivers/gpio/gpio-rcar.c12
1 files changed, 4 insertions, 8 deletions
diff --git a/drivers/gpio/gpio-rcar.c b/drivers/gpio/gpio-rcar.c
index f7b653314e7e..437baecc434e 100644
--- a/drivers/gpio/gpio-rcar.c
+++ b/drivers/gpio/gpio-rcar.c
@@ -477,7 +477,6 @@ static void gpio_rcar_enable_inputs(struct gpio_rcar_priv *p)
static int gpio_rcar_probe(struct platform_device *pdev)
{
struct gpio_rcar_priv *p;
- struct resource *irq;
struct gpio_chip *gpio_chip;
struct irq_chip *irq_chip;
struct gpio_irq_chip *girq;
@@ -502,12 +501,10 @@ static int gpio_rcar_probe(struct platform_device *pdev)
pm_runtime_enable(dev);
- irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
- if (!irq) {
- dev_err(dev, "missing IRQ\n");
- ret = -EINVAL;
+ ret = platform_get_irq(pdev, 0);
+ if (ret < 0)
goto err0;
- }
+ p->irq_parent = ret;
p->base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(p->base)) {
@@ -555,8 +552,7 @@ static int gpio_rcar_probe(struct platform_device *pdev)
goto err0;
}
- p->irq_parent = irq->start;
- if (devm_request_irq(dev, irq->start, gpio_rcar_irq_handler,
+ if (devm_request_irq(dev, p->irq_parent, gpio_rcar_irq_handler,
IRQF_SHARED, name, p)) {
dev_err(dev, "failed to request IRQ\n");
ret = -ENOENT;