linux-kernel - [PATCH v9 14/15] drm/msm/disp/dpu: reset the datapath after timing engine disable

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Message-ID: <1671012352-1825-15-git-send-email-quic_vpolimer@quicinc.com>
Date:   Wed, 14 Dec 2022 15:35:51 +0530
From:   Vinod Polimera <quic_vpolimer@...cinc.com>
To:     <dri-devel@...ts.freedesktop.org>, <linux-arm-msm@...r.kernel.org>,
        <freedreno@...ts.freedesktop.org>, <devicetree@...r.kernel.org>
CC:     Vinod Polimera <quic_vpolimer@...cinc.com>,
        <linux-kernel@...r.kernel.org>, <robdclark@...il.com>,
        <dianders@...omium.org>, <swboyd@...omium.org>,
        <quic_kalyant@...cinc.com>, <dmitry.baryshkov@...aro.org>,
        <quic_khsieh@...cinc.com>, <quic_vproddut@...cinc.com>,
        <quic_bjorande@...cinc.com>, <quic_aravindh@...cinc.com>,
        <quic_abhinavk@...cinc.com>, <quic_sbillaka@...cinc.com>
Subject: [PATCH v9 14/15] drm/msm/disp/dpu: reset the datapath after timing engine disable

Reset the datapath after disabling the timing gen, such that
it can start on a clean slate when the intf is enabled back.
This was a recommended sequence from the DPU HW programming guide.

Signed-off-by: Vinod Polimera <quic_vpolimer@...cinc.com>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c
index 685cb44..a597cca 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c
@@ -591,6 +591,7 @@ static void dpu_encoder_phys_vid_disable(struct dpu_encoder_phys *phys_enc)
 		}
 	}
 
+	dpu_encoder_helper_phys_cleanup(phys_enc);
 	phys_enc->enable_state = DPU_ENC_DISABLED;
 }
 
-- 
2.7.4