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media: venus: put dummy vote on video-mem path after last session release

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[ Upstream commit eff5ce02e1 ]

As per current implementation, video driver is unvoting "videom-mem" path
for last video session during vdec_session_release().
While video playback when we try to suspend device, we see video clock
warnings since votes are already removed during vdec_session_release().

corrected this by putting dummy vote on "video-mem" after last video
session release and unvoting it during suspend.

suspend")

Fixes: 07f8f22a33 ("media: venus: core: remove CNOC voting while device
Signed-off-by: Mansur Alisha Shaik <mansur@codeaurora.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Mansur Alisha Shaik 2020-10-19 06:18:14 +02:00 committed by Greg Kroah-Hartman
parent 43275d43b5
commit e1a709edc2
1 changed files with 10 additions and 0 deletions
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10
drivers/media/platform/qcom/venus/pm_helpers.c
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@ -212,6 +212,16 @@ static int load_scale_bw(struct venus_core *core)
}
mutex_unlock(&core->lock);
/*
* keep minimum bandwidth vote for "video-mem" path,
* so that clks can be disabled during vdec_session_release().
* Actual bandwidth drop will be done during device supend
* so that device can power down without any warnings.
*/
if (!total_avg && !total_peak)
total_avg = kbps_to_icc(1000);
dev_dbg(core->dev, VDBGL "total: avg_bw: %u, peak_bw: %u\n",
total_avg, total_peak);