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* [v1] drm/msm/disp/dpu1: program 3d_merge only if block is attached
@ 2021-04-02 11:54 Kalyan Thota
  2021-04-02 15:24 ` Rob Clark
  0 siblings, 1 reply; 2+ messages in thread
From: Kalyan Thota @ 2021-04-02 11:54 UTC (permalink / raw)
  To: y, dri-devel, linux-arm-msm, freedreno, devicetree
  Cc: mkrishn, dianders, linux-kernel, Kalyan Thota, swboyd

Update the 3d merge as active in the data path only if
the hw block is selected in the configuration.

Reported-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Kalyan Thota <kalyan_t@codeaurora.org>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c
index 8981cfa..92e6f1b 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c
@@ -496,7 +496,9 @@ static void dpu_hw_ctl_intf_cfg_v1(struct dpu_hw_ctl *ctx,
 
 	DPU_REG_WRITE(c, CTL_TOP, mode_sel);
 	DPU_REG_WRITE(c, CTL_INTF_ACTIVE, intf_active);
-	DPU_REG_WRITE(c, CTL_MERGE_3D_ACTIVE, BIT(cfg->merge_3d - MERGE_3D_0));
+	if (cfg->merge_3d)
+		DPU_REG_WRITE(c, CTL_MERGE_3D_ACTIVE,
+			      BIT(cfg->merge_3d - MERGE_3D_0));
 }
 
 static void dpu_hw_ctl_intf_cfg(struct dpu_hw_ctl *ctx,
-- 
2.7.4

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2021-04-02 11:54 [v1] drm/msm/disp/dpu1: program 3d_merge only if block is attached Kalyan Thota
2021-04-02 15:24 ` Rob Clark

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