On 03/05/2023 00:02, Kuogee Hsieh wrote:
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_PINGPONG_DSC
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.
Nit: as these ops were already present, I'd say that the lack of the
flag means that these operations are not supported and must not be
called for DSC setup/teardown.
Nevertheless:
Reviewed-by: Dmitry Baryshkov <[email protected]>
Reported-by : Marijn Suijten <[email protected]>
Signed-off-by: Kuogee Hsieh <[email protected]>
---
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;
--
With best wishes
Dmitry
