| Message ID | 20250211-dp_lm-v1-1-deeca9ac9bd9@quicinc.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | drm/msm/dpu: Allocate the number of LMs based on max_mixer_width to support 4 streams MST case | expand |
On Tue, Feb 11, 2025 at 06:37:43PM +0800, Yongxing Mou wrote: > In 2x2 mst case, each 2k monitor will use 2 lms, but dpu_8_4 only have > 6 lms, so let 2k only use one lm to support such case. DisplayPort MST is not supported. Please work with Abhinav to get it into his patch. Also it's LM and LMs. > > Signed-off-by: Abhinav Kumar <quic_abhinavk@quicinc.com> > Signed-off-by: Yongxing Mou <quic_yongmou@quicinc.com> This list of SoBs doesn't make sense. > --- > drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c > index 5172ab4dea995a154cd88d05c3842d7425fc34ce..e8846bf8edc5f9b2b3b7f093e4d5aad75de53da1 100644 > --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c > +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c > @@ -677,7 +677,8 @@ static struct msm_display_topology dpu_encoder_get_topology( > else if (!dpu_kms->catalog->caps->has_3d_merge) > topology.num_lm = 1; > else > - topology.num_lm = (mode->hdisplay > MAX_HDISPLAY_SPLIT) ? 2 : 1; > + topology.num_lm = (mode->hdisplay > dpu_kms->catalog->caps->max_mixer_width) ? > + 2 : 1; Please extend commit message to describe how your change affects other platforms. > > if (crtc_state->ctm) > topology.num_dspp = topology.num_lm; > > --- > base-commit: df5d6180169ae06a2eac57e33b077ad6f6252440 > change-id: 20250211-dp_lm-8f8ef15f5955 > > Best regards, > -- > Yongxing Mou <quic_yongmou@quicinc.com> >
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c index 5172ab4dea995a154cd88d05c3842d7425fc34ce..e8846bf8edc5f9b2b3b7f093e4d5aad75de53da1 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c @@ -677,7 +677,8 @@ static struct msm_display_topology dpu_encoder_get_topology( else if (!dpu_kms->catalog->caps->has_3d_merge) topology.num_lm = 1; else - topology.num_lm = (mode->hdisplay > MAX_HDISPLAY_SPLIT) ? 2 : 1; + topology.num_lm = (mode->hdisplay > dpu_kms->catalog->caps->max_mixer_width) ? + 2 : 1; if (crtc_state->ctm) topology.num_dspp = topology.num_lm;