From 49f698e2205299224dbf4599e87ca1b1d78683c3 Mon Sep 17 00:00:00 2001 From: Lad Prabhakar Date: Mon, 20 Dec 2021 01:15:24 +0000 Subject: [PATCH] rtc: ftrtc010: Use platform_get_irq() to get the interrupt [ 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 Reviewed-by: Linus Walleij Signed-off-by: Alexandre Belloni Link: https://lore.kernel.org/r/20211220011524.17206-1-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Sasha Levin --- 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 ad3add5..53bb08f 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) -- 2.7.4