media: marvell-ccic: 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/marvell-ccic/mmp-driver.c b/drivers/media/platform/marvell-ccic/mmp-driver.c
index 343ab4f7d807b47206741444266f93d1bafeed68..df16899ab1cbe1a27577a6e3f93875fb3d1817f4 100644 (file)
--- a/drivers/media/platform/marvell-ccic/mmp-driver.c
+++ b/drivers/media/platform/marvell-ccic/mmp-driver.c
@@ -270,12 +270,10 @@ static int mmpcam_probe(struct platform_device *pdev)
         * Finally, set up our IRQ now that the core is ready to
         * deal with it.
         */
-       res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
-       if (res == NULL) {
-               ret = -ENODEV;
+       ret = platform_get_irq(pdev, 0);
+       if (ret < 0)
                goto out;
-       }
-       cam->irq = res->start;
+       cam->irq = ret;
        ret = devm_request_irq(&pdev->dev, cam->irq, mmpcam_irq, IRQF_SHARED,
                                        "mmp-camera", mcam);
        if (ret)