From: Lad Prabhakar Date: Fri, 24 Dec 2021 15:37:53 +0000 (+0000) Subject: tty: goldfish: Use platform_get_irq() to get the interrupt X-Git-Tag: v6.1-rc5~2246^2~11 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=5acb78dc72b48bc44226a86368fb442800981a0c;p=platform%2Fkernel%2Flinux-starfive.git tty: goldfish: 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 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 Link: https://lore.kernel.org/r/20211224153753.22210-1-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/tty/goldfish.c b/drivers/tty/goldfish.c index c01cd36..5ed19a9 100644 --- a/drivers/tty/goldfish.c +++ b/drivers/tty/goldfish.c @@ -298,7 +298,7 @@ static int goldfish_tty_probe(struct platform_device *pdev) struct resource *r; struct device *ttydev; void __iomem *base; - u32 irq; + int irq; unsigned int line; r = platform_get_resource(pdev, IORESOURCE_MEM, 0); @@ -313,14 +313,12 @@ static int goldfish_tty_probe(struct platform_device *pdev) return -ENOMEM; } - r = platform_get_resource(pdev, IORESOURCE_IRQ, 0); - if (!r) { - pr_err("goldfish_tty: No IRQ resource available!\n"); + irq = platform_get_irq(pdev, 0); + if (irq < 0) { + ret = irq; goto err_unmap; } - irq = r->start; - mutex_lock(&goldfish_tty_lock); if (pdev->id == PLATFORM_DEVID_NONE)