diff mbox series

[07/13] media: exynos-gsc: Use platform_get_irq() to get the interrupt

Message ID 20211223173015.22251-8-prabhakar.mahadev-lad.rj@bp.renesas.com (mailing list archive)
State Mainlined
Commit 8e12c61cb15e880a0688b951e69a919b659527d2
Delegated to: Kieran Bingham
Headers show
Series media: Use platform_get_irq*() variants to fetch IRQ's | expand

Commit Message

Lad Prabhakar Dec. 23, 2021, 5:30 p.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>
---
 drivers/media/platform/exynos-gsc/gsc-core.c | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)
diff mbox series

Patch

diff --git a/drivers/media/platform/exynos-gsc/gsc-core.c b/drivers/media/platform/exynos-gsc/gsc-core.c
index cfd6ae70b8d8..e3559b047092 100644
--- a/drivers/media/platform/exynos-gsc/gsc-core.c
+++ b/drivers/media/platform/exynos-gsc/gsc-core.c
@@ -1106,9 +1106,9 @@  MODULE_DEVICE_TABLE(of, exynos_gsc_match);
 static int gsc_probe(struct platform_device *pdev)
 {
 	struct gsc_dev *gsc;
-	struct resource *res;
 	struct device *dev = &pdev->dev;
 	const struct gsc_driverdata *drv_data = of_device_get_match_data(dev);
+	int irq;
 	int ret;
 	int i;
 
@@ -1141,11 +1141,9 @@  static int gsc_probe(struct platform_device *pdev)
 	if (IS_ERR(gsc->regs))
 		return PTR_ERR(gsc->regs);
 
-	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
-	if (!res) {
-		dev_err(dev, "failed to get IRQ resource\n");
-		return -ENXIO;
-	}
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0)
+		return irq;
 
 	for (i = 0; i < gsc->num_clocks; i++) {
 		gsc->clock[i] = devm_clk_get(dev, drv_data->clk_names[i]);
@@ -1167,8 +1165,8 @@  static int gsc_probe(struct platform_device *pdev)
 		}
 	}
 
-	ret = devm_request_irq(dev, res->start, gsc_irq_handler,
-				0, pdev->name, gsc);
+	ret = devm_request_irq(dev, irq, gsc_irq_handler,
+			       0, pdev->name, gsc);
 	if (ret) {
 		dev_err(dev, "failed to install irq (%d)\n", ret);
 		goto err_clk;