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drm/exynos/exynos7_drm_decon: Use platform_get_irq_byname() to get the interrupt

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platform_get_resource_byname(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_byname().

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 19:01:30 +00:00 committed by Inki Dae
parent ecf8a99f48
commit 0d22b03166
1 changed files with 3 additions and 9 deletions
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12
drivers/gpu/drm/exynos/exynos7_drm_decon.c
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@ -678,7 +678,6 @@ static int decon_probe(struct platform_device *pdev)
struct device *dev = &pdev->dev;
struct decon_context *ctx;
struct device_node *i80_if_timings;
struct resource *res;
int ret;
if (!dev->of_node)
@ -728,16 +727,11 @@ static int decon_probe(struct platform_device *pdev)
goto err_iounmap;
}
res = platform_get_resource_byname(pdev, IORESOURCE_IRQ,
ctx->i80_if ? "lcd_sys" : "vsync");
if (!res) {
dev_err(dev, "irq request failed.\n");
ret = -ENXIO;
ret = platform_get_irq_byname(pdev, ctx->i80_if ? "lcd_sys" : "vsync");
if (ret < 0)
goto err_iounmap;
}
ret = devm_request_irq(dev, res->start, decon_irq_handler,
0, "drm_decon", ctx);
ret = devm_request_irq(dev, ret, decon_irq_handler, 0, "drm_decon", ctx);
if (ret) {
dev_err(dev, "irq request failed.\n");
goto err_iounmap;