diff mbox series

[v3,4/8] drm/msm/dpu: use single CTL if it is the only CTL returned by RM

Message ID 20250307-dpu-active-ctl-v3-4-5d20655f10ca@linaro.org (mailing list archive)
State New
Headers show
Series drm/msm/dpu: improve CTL handling on DPU >= 5.0 platforms | expand

Commit Message

Dmitry Baryshkov March 7, 2025, 6:24 a.m. UTC 
From: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

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>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
index 0eed93a4d056beda6b54c0d20f027a53c84f67db..b5e8ba592d8af298a52924d34a573d4f9e05c476 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
@@ -1247,7 +1247,11 @@  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);