[PATCH v3 2/7] drm/msm/dpu: add DPU_PINGPONG_DSC feature bit

[Kuogee Hsieh]

Legacy DPU requires PP block to be involved during DSC setting up.
This patch adds DDPU_PINGPONG_DSC feature bit to indicate that both
dpu_hw_pp_setup_dsc() and dpu_hw_pp_dsc_enable() pingpong ops
functions are required to complete DSC data path set up and start
DSC engine.

Reported-by : Marijn Suijten <marijn.suijten at somainline.org>
Signed-off-by: Kuogee Hsieh <quic_khsieh at quicinc.com>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h  | 2 ++
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.c | 9 ++++++---
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h
index 71584cd..c07a6b6 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h
@@ -144,6 +144,7 @@ enum {
  * @DPU_PINGPONG_SPLIT      PP block supports split fifo
  * @DPU_PINGPONG_SLAVE      PP block is a suitable slave for split fifo
  * @DPU_PINGPONG_DITHER,    Dither blocks
+ * @DPU_PINGPONG_DSC,	    PP ops functions required for DSC
  * @DPU_PINGPONG_MAX
  */
 enum {
@@ -152,6 +153,7 @@ enum {
 	DPU_PINGPONG_SPLIT,
 	DPU_PINGPONG_SLAVE,
 	DPU_PINGPONG_DITHER,
+	DPU_PINGPONG_DSC,
 	DPU_PINGPONG_MAX
 };
 
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.c
index 3822e06..f255a04 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.c
@@ -264,9 +264,12 @@ static void _setup_pingpong_ops(struct dpu_hw_pingpong *c,
 	c->ops.get_autorefresh = dpu_hw_pp_get_autorefresh_config;
 	c->ops.poll_timeout_wr_ptr = dpu_hw_pp_poll_timeout_wr_ptr;
 	c->ops.get_line_count = dpu_hw_pp_get_line_count;
-	c->ops.setup_dsc = dpu_hw_pp_setup_dsc;
-	c->ops.enable_dsc = dpu_hw_pp_dsc_enable;
-	c->ops.disable_dsc = dpu_hw_pp_dsc_disable;
+
+	if (features & BIT(DPU_PINGPONG_DSC)) {
+		c->ops.setup_dsc = dpu_hw_pp_setup_dsc;
+		c->ops.enable_dsc = dpu_hw_pp_dsc_enable;
+		c->ops.disable_dsc = dpu_hw_pp_dsc_disable;
+	}
 
 	if (test_bit(DPU_PINGPONG_DITHER, &features))
 		c->ops.setup_dither = dpu_hw_pp_setup_dither;
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project