From: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx> [ Upstream commit 05020a733b02cf7a474305e620fb306cd3abfe84 ] 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 bypasses the hierarchical setup and messes 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@xxxxxxxxxxxxxx> Reviewed-by: Linus Walleij <linus.walleij@xxxxxxxxxx> Signed-off-by: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxx> Link: https://lore.kernel.org/r/20211220011524.17206-1-prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- drivers/rtc/rtc-ftrtc010.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/drivers/rtc/rtc-ftrtc010.c b/drivers/rtc/rtc-ftrtc010.c index ad3add5db4c8..53bb08fe1cd4 100644 --- a/drivers/rtc/rtc-ftrtc010.c +++ b/drivers/rtc/rtc-ftrtc010.c @@ -141,11 +141,9 @@ static int ftrtc010_rtc_probe(struct platform_device *pdev) } } - res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); - if (!res) - return -ENODEV; - - rtc->rtc_irq = res->start; + rtc->rtc_irq = platform_get_irq(pdev, 0); + if (rtc->rtc_irq < 0) + return rtc->rtc_irq; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) -- 2.35.1
