[PATCH 14/16] drm/msm/dpu: do not allow YUV formats if no CDM block is present

[Abhinav Kumar]

On chipsets where CDM block is not available OR where support has
not been added yet do not allow YUV formats for writeback block.

Signed-off-by: Abhinav Kumar <quic_abhinavk at quicinc.com>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_wb.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_wb.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_wb.c
index 7fc174b33ae2..d8edca9bc964 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_wb.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_wb.c
@@ -406,6 +406,12 @@ static int dpu_encoder_phys_wb_atomic_check(
 		return ret;
 	}
 
+	if (DPU_FORMAT_IS_YUV(to_dpu_format(msm_framebuffer_format(fb))) &&
+	    !phys_enc->dpu_kms->catalog->cdm) {
+		DPU_ERROR("cannot support YUV formats without CDM block\n");
+		return -EINVAL;
+	}
+
 	return 0;
 }
 
-- 
2.40.1