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dmaengine: mediatek: mtk-hsdma: Use platform_get_irq() to get the interrupt

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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@bp.renesas.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220404155557.27316-3-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Lad Prabhakar
2022-04-04 16:55:56 +01:00
committed by Vinod Koul
parent 8b0c99371a
commit bb40bb695e
1 changed files with 4 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/dma/mediatek/mtk-hsdma.c
+4 -7
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@@ -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);