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drm/exynos: mixer: 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 19:01:31 +00:00 committed by Inki Dae
parent 970dc5ed6b
commit 6a91548e6b
1 changed files with 6 additions and 8 deletions
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14
drivers/gpu/drm/exynos/exynos_mixer.c
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@ -809,19 +809,17 @@ static int mixer_resources_init(struct mixer_context *mixer_ctx)
return -ENXIO;
}
res = platform_get_resource(mixer_ctx->pdev, IORESOURCE_IRQ, 0);
if (res == NULL) {
dev_err(dev, "get interrupt resource failed.\n");
return -ENXIO;
}
ret = platform_get_irq(mixer_ctx->pdev, 0);
if (ret < 0)
return ret;
mixer_ctx->irq = ret;
ret = devm_request_irq(dev, res->start, mixer_irq_handler,
0, "drm_mixer", mixer_ctx);
ret = devm_request_irq(dev, mixer_ctx->irq, mixer_irq_handler,
0, "drm_mixer", mixer_ctx);
if (ret) {
dev_err(dev, "request interrupt failed.\n");
return ret;
}
mixer_ctx->irq = res->start;
return 0;
}