Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 5.10 136/717] media: venus: put dummy vote on video-mem path after last session release | Date | Mon, 28 Dec 2020 13:42:14 +0100 |
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From: Mansur Alisha Shaik <mansur@codeaurora.org>
[ Upstream commit eff5ce02e170125936c43ca96c7dc701a86681ed ]
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: 07f8f22a33a9e ("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> --- drivers/media/platform/qcom/venus/pm_helpers.c | 10 ++++++++++ 1 file changed, 10 insertions(+)
diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c index a9538c2cc3c9d..2946547a0df4a 100644 --- a/drivers/media/platform/qcom/venus/pm_helpers.c +++ b/drivers/media/platform/qcom/venus/pm_helpers.c @@ -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); -- 2.27.0
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