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iommu/rockchip: Free irqs in shutdown handler 

In the iommu's shutdown handler we disable runtime-pm which could
result in the irq-handler running unclocked and since commit
    3fc7c5c0cf ("iommu/rockchip: Handle errors returned from PM framework")
we warn about that fact.

This can cause warnings on shutdown on some Rockchip machines, so
free the irqs in the shutdown handler before we disable runtime-pm.

Reported-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Fixes: 3fc7c5c0cf ("iommu/rockchip: Handle errors returned from PM framework")
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Heiko Stuebner 2018-08-27 12:56:24 +02:00 committed by Joerg Roedel
parent 6bf4ca7fbc
commit 74bc2abca7
1 changed files with 6 additions and 0 deletions
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6
drivers/iommu/rockchip-iommu.c
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@ -1241,6 +1241,12 @@ err_unprepare_clocks:
static void rk_iommu_shutdown(struct platform_device *pdev)
{
struct rk_iommu *iommu = platform_get_drvdata(pdev);
int i = 0, irq;
while ((irq = platform_get_irq(pdev, i++)) != -ENXIO)
devm_free_irq(iommu->dev, irq, iommu);
pm_runtime_force_suspend(&pdev->dev);
}