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> --- Hi, Dropping usage of platform_get_resource() was agreed based on the discussion [0]. [0] https://patchwork.kernel.org/project/linux-renesas-soc/ patch/20211209001056.29774-1-prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx/ Cheers, Prabhakar --- 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) -- 2.17.1
