linux-kernel - [PATCH v4 07/19] drm/msm/dpu: Clear CTL_FETCH_PIPE

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Message-Id: <20250311-b4-sm8750-display-v4-7-da6b3e959c76@linaro.org>
Date: Tue, 11 Mar 2025 20:01:57 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Abhinav Kumar <quic_abhinavk@...cinc.com>, Sean Paul <sean@...rly.run>, 
 Marijn Suijten <marijn.suijten@...ainline.org>, 
 David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>, 
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Krishna Manikandan <quic_mkrishn@...cinc.com>, 
 Jonathan Marek <jonathan@...ek.ca>, Kuogee Hsieh <quic_khsieh@...cinc.com>, 
 Neil Armstrong <neil.armstrong@...aro.org>, 
 Dmitry Baryshkov <lumag@...nel.org>, Rob Clark <robdclark@...il.com>
Cc: linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org, 
 freedreno@...ts.freedesktop.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, 
 Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>, 
 Srini Kandagatla <srinivas.kandagatla@...aro.org>, 
 Rob Clark <robdclark@...omium.org>, Dmitry Baryshkov <lumag@...nel.org>
Subject: [PATCH v4 07/19] drm/msm/dpu: Clear CTL_FETCH_PIPE_ACTIVE on mixer
 reset

Resetting mixers should also include resetting active fetch pipes.

Fixes: ae4d721ce100 ("drm/msm/dpu: add an API to reset the encoder related hw blocks")
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---

Changes in v3:
1. New patch, split from previous big DPU v12.0.
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
index 284e69bb47c179ba62363b2df2cebd5172c44f8a..ccf492f27140a2841b454d413e885e4bbd9ee497 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
@@ -2188,6 +2188,9 @@ static void dpu_encoder_helper_reset_mixers(struct dpu_encoder_phys *phys_enc)
 		/* clear all blendstages */
 		if (ctl->ops.setup_blendstage)
 			ctl->ops.setup_blendstage(ctl, hw_mixer[i]->idx, NULL);
+
+		if (ctl->ops.set_active_fetch_pipes)
+			ctl->ops.set_active_fetch_pipes(ctl, NULL);
 	}
 }
 

-- 
2.43.0