diff mbox series

[v4,02/16] drm/msm/dpu: Do not fix number of DSC

Message ID 20250116-sm8650-v6-13-hmd-deckard-mdss-quad-upstream-33-v4-2-74749c6eba33@linaro.org (mailing list archive)
State New
Headers show
Series drm/msm/dpu: Support quad pipe with dual-DSI | expand

Commit Message

Jun Nie Jan. 16, 2025, 7:25 a.m. UTC 
Currently, if DSC is enabled, only 2 DSC engines are supported so far.
More usage cases will be added, such as 4 DSC in 4:4:2 topology. So
get the real number of DSCs to decide whether DSC merging is needed.

Signed-off-by: Jun Nie <jun.nie@linaro.org>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

Comments

Dmitry Baryshkov Jan. 16, 2025, 7:45 a.m. UTC | #1 
On Thu, Jan 16, 2025 at 03:25:51PM +0800, Jun Nie wrote:
> Currently, if DSC is enabled, only 2 DSC engines are supported so far.
> More usage cases will be added, such as 4 DSC in 4:4:2 topology. So
> get the real number of DSCs to decide whether DSC merging is needed.
> 
> Signed-off-by: Jun Nie <jun.nie@linaro.org>
> ---
>  drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 6 ++++--
>  1 file changed, 4 insertions(+), 2 deletions(-)
> 

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
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 eaac172141ede..c734d2c5790d2 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
@@ -164,6 +164,7 @@  enum dpu_enc_rc_states {
  *				clks and resources after IDLE_TIMEOUT time.
  * @topology:                   topology of the display
  * @idle_timeout:		idle timeout duration in milliseconds
+ * @num_dscs:			Number of DSCs in use
  * @wide_bus_en:		wide bus is enabled on this interface
  * @dsc:			drm_dsc_config pointer, for DSC-enabled encoders
  */
@@ -204,6 +205,7 @@  struct dpu_encoder_virt {
 	struct msm_display_topology topology;
 
 	u32 idle_timeout;
+	u32 num_dscs;
 
 	bool wide_bus_en;
 
@@ -622,9 +624,8 @@  bool dpu_encoder_use_dsc_merge(struct drm_encoder *drm_enc)
 		if (dpu_enc->phys_encs[i])
 			intf_count++;
 
-	/* See dpu_encoder_get_topology, we only support 2:2:1 topology */
 	if (dpu_enc->dsc)
-		num_dsc = 2;
+		num_dsc = dpu_enc->num_dscs;
 
 	return (num_dsc > 0) && (num_dsc > intf_count);
 }
@@ -1261,6 +1262,7 @@  static void dpu_encoder_virt_atomic_mode_set(struct drm_encoder *drm_enc,
 		dsc_mask |= BIT(dpu_enc->hw_dsc[i]->idx - DSC_0);
 	}
 
+	dpu_enc->num_dscs = num_dsc;
 	dpu_enc->dsc_mask = dsc_mask;
 
 	if ((dpu_enc->disp_info.intf_type == INTF_WB && conn_state->writeback_job) ||