linux-kernel - [PATCH v4 09/19] drm/msm/dpu: Clear CTL_FETCH_PIPE

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Message-Id: <20250311-b4-sm8750-display-v4-9-da6b3e959c76@linaro.org>
Date: Tue, 11 Mar 2025 20:01:59 +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 09/19] drm/msm/dpu: Clear CTL_FETCH_PIPE_ACTIVE before
 blend setup

Before blend setup, all existing blend stages are cleared, so shall be
active fetch pipes.

Fixes: b3652e87c03c ("drm/msm/disp/dpu1: add support to program fetch active in ctl path")
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_crtc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
index 2d7af6fff2708c12520a78cc6c979b9930dffc95..a4b0fe0d9899b32141928f0b6a16503a49b3c27a 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
@@ -519,6 +519,8 @@ static void _dpu_crtc_blend_setup(struct drm_crtc *crtc)
 		if (mixer[i].lm_ctl->ops.clear_all_blendstages)
 			mixer[i].lm_ctl->ops.clear_all_blendstages(
 					mixer[i].lm_ctl);
+		if (mixer[i].lm_ctl->ops.set_active_fetch_pipes)
+			mixer[i].lm_ctl->ops.set_active_fetch_pipes(mixer[i].lm_ctl, NULL);
 	}
 
 	/* initialize stage cfg */

-- 
2.43.0