linux-kernel - [PATCH] venus: fix calculating mbps in calculate_inst

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Message-Id: <1604312674-1621-1-git-send-email-mansur@codeaurora.org>
Date:   Mon,  2 Nov 2020 15:54:34 +0530
From:   Mansur Alisha Shaik <mansur@...eaurora.org>
To:     linux-media@...r.kernel.org, stanimir.varbanov@...aro.org
Cc:     linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        vgarodia@...eaurora.org,
        Mansur Alisha Shaik <mansur@...eaurora.org>
Subject: [PATCH] venus: fix calculating mbps in calculate_inst_freq()

Currently in calculate_inst_freq() video driver is calculating
macro blocks per frame in steam of macro blocks per second(mpbs).
Which results frequency is always setting to lower frequency (150MB)
as per frequency table for sc7180. Hence the playback is not smooth.

Corrected this by correcting the mbps calculation.

Signed-off-by: Mansur Alisha Shaik <mansur@...eaurora.org>
---
 drivers/media/platform/qcom/venus/pm_helpers.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c
index 57877ea..001513f 100644
--- a/drivers/media/platform/qcom/venus/pm_helpers.c
+++ b/drivers/media/platform/qcom/venus/pm_helpers.c
@@ -928,7 +928,7 @@ static unsigned long calculate_inst_freq(struct venus_inst *inst,
 	u32 fps = (u32)inst->fps;
 	u32 mbs_per_sec;
 
-	mbs_per_sec = load_per_instance(inst) / fps;
+	mbs_per_sec = load_per_instance(inst);
 
 	vpp_freq = mbs_per_sec * inst->clk_data.codec_freq_data->vpp_freq;
 	/* 21 / 20 is overhead factor */
-- 
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