From be0a3b7e2a97e3f73004a5b453cc2023d8c1317a Mon Sep 17 00:00:00 2001
From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Date: Wed, 22 Dec 2021 19:01:33 +0000
Subject: [PATCH] drm/exynos/fimc: 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 bypassed the hierarchical setup and messed 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: Inki Dae <inki.dae@samsung.com>
---
drivers/gpu/drm/exynos/exynos_drm_fimc.c | 13 +++++--------
1 file changed, 5 insertions(+), 8 deletions(-)
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimc.c b/drivers/gpu/drm/exynos/exynos_drm_fimc.c
index 023f54ee61a81..0ee32e4b1e430 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fimc.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fimc.c
@@ -1267,7 +1267,6 @@ static int fimc_probe(struct platform_device *pdev)
struct exynos_drm_ipp_formats *formats;
struct device *dev = &pdev->dev;
struct fimc_context *ctx;
- struct resource *res;
int ret;
int i, j, num_limits, num_formats;
@@ -1330,14 +1329,12 @@ static int fimc_probe(struct platform_device *pdev)
return PTR_ERR(ctx->regs);
/* resource irq */
- res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
- if (!res) {
- dev_err(dev, "failed to request irq resource.\n");
- return -ENOENT;
- }
+ ret = platform_get_irq(pdev, 0);
+ if (ret < 0)
+ return ret;
- ret = devm_request_irq(dev, res->start, fimc_irq_handler,
- 0, dev_name(dev), ctx);
+ ret = devm_request_irq(dev, ret, fimc_irq_handler,
+ 0, dev_name(dev), ctx);
if (ret < 0) {
dev_err(dev, "failed to request irq.\n");
return ret;
--
2.30.2