diff options
| author |   Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> | 2022-04-04 16:55:56 +0100 |
|---|---|---|
| committer |   Vinod Koul <vkoul@kernel.org> | 2022-04-11 16:26:53 +0530 |
| commit | bb40bb695ec8b90bee4bfd7db52ba92c4a0b7586 (patch) | |
| tree | 253fd73fa2f225f31aacfba34cb24be7c33c8baf /drivers/dma/mediatek | |
| parent | dmaengine: nbpfaxi: Use platform_get_irq_optional() to get the interrupt (diff) | |
| download | linux-dev-bb40bb695ec8b90bee4bfd7db52ba92c4a0b7586.tar.xz linux-dev-bb40bb695ec8b90bee4bfd7db52ba92c4a0b7586.zip | |
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 <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>
Diffstat (limited to 'drivers/dma/mediatek')
| -rw-r--r-- | drivers/dma/mediatek/mtk-hsdma.c | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/drivers/dma/mediatek/mtk-hsdma.c b/drivers/dma/mediatek/mtk-hsdma.c index 6ad8afbb95f2..c0fffde7fe08 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); |