@@ -513,9 +513,9 @@ static int s3c2410wdt_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct s3c2410_wdt *wdt;
- struct resource *wdt_irq;
unsigned int wtcon;
int started = 0;
+ int wdt_irq;
int ret;
wdt = devm_kzalloc(dev, sizeof(*wdt), GFP_KERNEL);
@@ -536,10 +536,9 @@ static int s3c2410wdt_probe(struct platform_device *pdev)
}
}
- wdt_irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
- if (wdt_irq == NULL) {
- dev_err(dev, "no irq resource specified\n");
- ret = -ENOENT;
+ wdt_irq = platform_get_irq(pdev, 0);
+ if (wdt_irq < 0) {
+ ret = wdt_irq;
goto err;
}
@@ -592,8 +591,8 @@ static int s3c2410wdt_probe(struct platform_device *pdev)
dev_info(dev, "default timer value is out of range, cannot start\n");
}
- ret = devm_request_irq(dev, wdt_irq->start, s3c2410wdt_irq, 0,
- pdev->name, pdev);
+ ret = devm_request_irq(dev, wdt_irq, s3c2410wdt_irq, 0,
+ pdev->name, pdev);
if (ret != 0) {
dev_err(dev, "failed to install irq (%d)\n", ret);
goto err_cpufreq;
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> --- drivers/watchdog/s3c2410_wdt.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-)