media: bdisp: 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>

drivers/media/platform/sti/bdisp/bdisp-v4l2.c

@@ -1284,7 +1284,6 @@ static int bdisp_remove(struct platform_device *pdev)
 static int bdisp_probe(struct platform_device *pdev)
 {
 	struct bdisp_dev *bdisp;
-	struct resource *res;
 	struct device *dev = &pdev->dev;
 	int ret;
 
@@ -1335,14 +1334,11 @@ static int bdisp_probe(struct platform_device *pdev)
 		goto err_wq;
 	}
 
-	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
-	if (!res) {
-		dev_err(dev, "failed to get IRQ resource\n");
-		ret = -EINVAL;
+	ret = platform_get_irq(pdev, 0);
+	if (ret < 0)
 		goto err_clk;
-	}
 
-	ret = devm_request_threaded_irq(dev, res->start, bdisp_irq_handler,
+	ret = devm_request_threaded_irq(dev, ret, bdisp_irq_handler,
 					bdisp_irq_thread, IRQF_ONESHOT,
 					pdev->name, bdisp);
 	if (ret) {