From: Lad Prabhakar Date: Mon, 4 Apr 2022 15:55:56 +0000 (+0100) Subject: dmaengine: mediatek: mtk-hsdma: Use platform_get_irq() to get the interrupt X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=bb40bb695ec8b90bee4bfd7db52ba92c4a0b7586;p=linux.git dmaengine: mediatek: mtk-hsdma: 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 Reviewed-by: Andy Shevchenko Link: https://lore.kernel.org/r/20220404155557.27316-3-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Vinod Koul --- diff --git a/drivers/dma/mediatek/mtk-hsdma.c b/drivers/dma/mediatek/mtk-hsdma.c index 6ad8afbb95f2b..c0fffde7fe086 100644 --- a/drivers/dma/mediatek/mtk-hsdma.c +++ b/drivers/dma/mediatek/mtk-hsdma.c @@ -923,13 +923,10 @@ static int mtk_hsdma_probe(struct platform_device *pdev) return PTR_ERR(hsdma->clk); } - res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); - if (!res) { - dev_err(&pdev->dev, "No irq resource for %s\n", - dev_name(&pdev->dev)); - return -EINVAL; - } - hsdma->irq = res->start; + err = platform_get_irq(pdev, 0); + if (err < 0) + return err; + hsdma->irq = err; refcount_set(&hsdma->pc_refcnt, 0); spin_lock_init(&hsdma->lock);