From a51f589693899a0325a4381098bbb96e06204983 Mon Sep 17 00:00:00 2001 From: Lad Prabhakar Date: Thu, 16 Dec 2021 21:47:47 +0000 Subject: watchdog: s3c2410: 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 Reviewed-by: Guenter Roeck Reviewed-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/20211216214747.10454-1-prabhakar.mahadev-lad.rj@bp.renesas.com [groeck: Fixed context conflicts] Signed-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck --- drivers/watchdog/s3c2410_wdt.c | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-) (limited to 'drivers/watchdog/s3c2410_wdt.c') diff --git a/drivers/watchdog/s3c2410_wdt.c b/drivers/watchdog/s3c2410_wdt.c index bb374b9fc163..523a6707bb31 100644 --- a/drivers/watchdog/s3c2410_wdt.c +++ b/drivers/watchdog/s3c2410_wdt.c @@ -661,8 +661,8 @@ 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 wdt_irq; int ret; wdt = devm_kzalloc(dev, sizeof(*wdt), GFP_KERNEL); @@ -686,11 +686,9 @@ 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"); - return -ENOENT; - } + wdt_irq = platform_get_irq(pdev, 0); + if (wdt_irq < 0) + return wdt_irq; /* get the memory region for the watchdog timer */ wdt->reg_base = devm_platform_ioremap_resource(pdev, 0); @@ -754,8 +752,8 @@ static int s3c2410wdt_probe(struct platform_device *pdev) } } - 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; -- cgit v1.2.3-70-g09d2