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media: venus: core: add shutdown callback for venus

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After the SMMU translation is disabled in the
arm-smmu shutdown callback during reboot, if
any subsystem are still alive then IOVAs they
are using will become PAs on bus, which may
lead to crash.

So implemented shutdown callback, which detach iommu maps.

Signed-off-by: Mansur Alisha Shaik <mansur@codeaurora.org>
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Mansur Alisha Shaik 2020-09-24 08:59:46 +02:00 committed by Mauro Carvalho Chehab
parent de15e6231e
commit 7399139be6
1 changed files with 9 additions and 0 deletions
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9
drivers/media/platform/qcom/venus/core.c
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@ -345,6 +345,14 @@ static int venus_remove(struct platform_device *pdev)
return ret;
}
static void venus_core_shutdown(struct platform_device *pdev)
{
struct venus_core *core = platform_get_drvdata(pdev);
venus_shutdown(core);
venus_firmware_deinit(core);
}
static __maybe_unused int venus_runtime_suspend(struct device *dev)
{
struct venus_core *core = dev_get_drvdata(dev);
@ -620,6 +628,7 @@ static struct platform_driver qcom_venus_driver = {
.of_match_table = venus_dt_match,
.pm = &venus_pm_ops,
},
.shutdown = venus_core_shutdown,
};
module_platform_driver(qcom_venus_driver);