lkml.org 
[lkml]   [2020]   [Sep]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v5 3/3] venus: core: add shutdown callback for venus
Date
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 --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);

--
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation
\
 
 \ /
  Last update: 2020-09-24 09:01    [W:0.045 / U:0.304 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site