diff mbox series

[v5,3/3] venus: core: add shutdown callback for venus

Message ID 1600930786-18275-4-git-send-email-mansur@codeaurora.org (mailing list archive)
State Accepted
Commit 7399139be6b21c7c59323a4fab56cc07cd254529
Headers show
Series venus: core: add shutdown callback for venus | expand

Commit Message

Mansur Alisha Shaik Sept. 24, 2020, 6:59 a.m. UTC 
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>
Acked-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
---
 drivers/media/platform/qcom/venus/core.c | 9 +++++++++
 1 file changed, 9 insertions(+)
diff mbox series

Patch

diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
index 6103aaf..65b71ac 100644
--- a/drivers/media/platform/qcom/venus/core.c
+++ b/drivers/media/platform/qcom/venus/core.c
@@ -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);
@@ -602,6 +610,7 @@  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);