On 17-02-22, 22:44, Marijn Suijten wrote:
On 2022-02-10 16:04:20, Vinod Koul wrote:
For DSC to work we typically need a 2,2,1 configuration. This should suffice for resolutions up to 4k. For more resolutions like 8k this won't work.
Also, it is better to use 2 LMs and DSC instances as half width results in lesser power consumption as compared to single LM, DSC at full width.
The panel has been tested only with 2,2,1 configuration, so for now we blindly create 2,2,1 topology when DSC is enabled
Co-developed-by: Abhinav Kumar abhinavk@codeaurora.org Signed-off-by: Abhinav Kumar abhinavk@codeaurora.org Signed-off-by: Vinod Koul vkoul@kernel.org
drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 13 +++++++++++++ drivers/gpu/drm/msm/msm_drv.h | 2 ++ 2 files changed, 15 insertions(+)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c index 95a7bf362e81..13ccb7b3cce5 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c @@ -574,8 +574,21 @@ static struct msm_display_topology dpu_encoder_get_topology( topology.num_enc = 0; topology.num_intf = intf_count;
- if (dpu_enc->dsc) {
/* In case of Display Stream Compression DSC, we would use* 2 encoders, 2 line mixers and 1 interfaceLM is a layer mixer, not a line mixer, right?
Right, thanks for spotting