media: stm32-dma2d: 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>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

diff --git a/drivers/media/platform/stm32/dma2d/dma2d.c b/drivers/media/platform/stm32/dma2d/dma2d.c
index 17af90d8689812c7d5d1a9152b584e333d3489d6..9706aa41b5d2836fce6580536ceca608e330b41f 100644 (file)
--- a/drivers/media/platform/stm32/dma2d/dma2d.c
+++ b/drivers/media/platform/stm32/dma2d/dma2d.c
@@ -633,14 +633,11 @@ static int dma2d_probe(struct platform_device *pdev)
                goto put_clk_gate;
        }
 
-       res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
-       if (!res) {
-               dev_err(&pdev->dev, "failed to find IRQ\n");
-               ret = -ENXIO;
+       ret = platform_get_irq(pdev, 0);
+       if (ret < 0)
                goto unprep_clk_gate;
-       }
 
-       dev->irq = res->start;
+       dev->irq = ret;
 
        ret = devm_request_irq(&pdev->dev, dev->irq, dma2d_isr,
                               0, pdev->name, dev);