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drm/msm/dpu: use single CTL if it is the only CTL returned by RM

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On DPU >= 5.0 CTL blocks were reworked in order to support using a
single CTL for all outputs. In preparation of reworking the RM code to
return single CTL make sure that dpu_encoder can cope with that.

Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-QRD
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/641582/
Link: https://lore.kernel.org/r/20250307-dpu-active-ctl-v3-4-5d20655f10ca@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
This commit is contained in:
Dmitry Baryshkov
2025-03-07 08:24:52 +02:00
committed by Dmitry Baryshkov
parent 696707d3d2
commit df99bdfcb2
1 changed files with 5 additions and 1 deletions
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6
drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
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@@ -1246,7 +1246,11 @@ static void dpu_encoder_virt_atomic_mode_set(struct drm_encoder *drm_enc,
return;
}
phys->hw_ctl = i < num_ctl ? to_dpu_hw_ctl(hw_ctl[i]) : NULL;
/* Use first (and only) CTL if active CTLs are supported */
if (num_ctl == 1)
phys->hw_ctl = to_dpu_hw_ctl(hw_ctl[0]);
else
phys->hw_ctl = i < num_ctl ? to_dpu_hw_ctl(hw_ctl[i]) : NULL;
if (!phys->hw_ctl) {
DPU_ERROR_ENC(dpu_enc,
"no ctl block assigned at idx: %d\n", i);