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drm/exynos/fimc: Use platform_get_irq() to get the interrupt

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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>
This commit is contained in:
Lad Prabhakar 2021-12-22 19:01:33 +00:00 committed by Inki Dae
parent b342c1f335
commit be0a3b7e2a
1 changed files with 5 additions and 8 deletions

13
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;