diff mbox series

[v2,01/13] media: vsp1: Use platform_get_irq() to get the interrupt

Message ID 20220111002314.15213-2-prabhakar.mahadev-lad.rj@bp.renesas.com (mailing list archive)
State New, archived
Headers show
Series media: Use platform_get_irq*() variants to fetch IRQ's | expand

Commit Message

Lad Prabhakar Jan. 11, 2022, 12:23 a.m. UTC 
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: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
v1->v2
* Used a local variable irq.
* Included Ack from Laurent
---
 drivers/media/platform/vsp1/vsp1_drv.c | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)
diff mbox series

Patch

diff --git a/drivers/media/platform/vsp1/vsp1_drv.c b/drivers/media/platform/vsp1/vsp1_drv.c
index c9044785b903..e5b865dca111 100644
--- a/drivers/media/platform/vsp1/vsp1_drv.c
+++ b/drivers/media/platform/vsp1/vsp1_drv.c
@@ -794,9 +794,9 @@  static int vsp1_probe(struct platform_device *pdev)
 {
 	struct vsp1_device *vsp1;
 	struct device_node *fcp_node;
-	struct resource *irq;
 	unsigned int i;
 	int ret;
+	int irq;
 
 	vsp1 = devm_kzalloc(&pdev->dev, sizeof(*vsp1), GFP_KERNEL);
 	if (vsp1 == NULL)
@@ -813,14 +813,12 @@  static int vsp1_probe(struct platform_device *pdev)
 	if (IS_ERR(vsp1->mmio))
 		return PTR_ERR(vsp1->mmio);
 
-	irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
-	if (!irq) {
-		dev_err(&pdev->dev, "missing IRQ\n");
-		return -EINVAL;
-	}
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0)
+		return irq;
 
-	ret = devm_request_irq(&pdev->dev, irq->start, vsp1_irq_handler,
-			      IRQF_SHARED, dev_name(&pdev->dev), vsp1);
+	ret = devm_request_irq(&pdev->dev, irq, vsp1_irq_handler,
+			       IRQF_SHARED, dev_name(&pdev->dev), vsp1);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "failed to request IRQ\n");
 		return ret;