From e1a709edc21d96f5d986c1e8d844ec19fb9c1853 Mon Sep 17 00:00:00 2001 From: Mansur Alisha Shaik Date: Mon, 19 Oct 2020 06:18:14 +0200 Subject: [PATCH] media: venus: put dummy vote on video-mem path after last session release [ 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 Reviewed-by: Stephen Boyd Signed-off-by: Stanimir Varbanov Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Sasha Levin --- 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 a9538c2cc3c9..2946547a0df4 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); -- 2.17.1