Use helpers for source min/max input bpc with DSC.
While at it, make them return int instead of u8.
v2: Make the helpers return int instead of u8. (Jani)
Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@xxxxxxxxx>
Reviewed-by: Suraj Kandpal <suraj.kandpal@xxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_dp.c | 6 ++----
drivers/gpu/drm/i915/display/intel_dp.h | 2 ++
drivers/gpu/drm/i915/display/intel_dp_mst.c | 11 ++++-------
3 files changed, 8 insertions(+), 11 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 1f68d4819282..74000b65829e 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -1622,8 +1622,7 @@ intel_dp_compute_link_config_wide(struct intel_dp *intel_dp,
return -EINVAL;
}
-static
-u8 intel_dp_dsc_max_src_input_bpc(struct drm_i915_private *i915)
+int intel_dp_dsc_max_src_input_bpc(struct drm_i915_private *i915)
{
if (!HAS_DSC(i915))
return 0;
@@ -2022,8 +2021,7 @@ static int dsc_compute_compressed_bpp(struct intel_dp *intel_dp,
dsc_max_bpp, dsc_min_bpp, pipe_bpp, timeslots);
}
-static
-u8 intel_dp_dsc_min_src_input_bpc(struct drm_i915_private *i915)
+int intel_dp_dsc_min_src_input_bpc(struct drm_i915_private *i915)
{
/* Min DSC Input BPC for ICL+ is 8 */
return HAS_DSC(i915) ? 8 : 0;
diff --git a/drivers/gpu/drm/i915/display/intel_dp.h b/drivers/gpu/drm/i915/display/intel_dp.h
index 05db46b111f2..f613ced9eda6 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.h
+++ b/drivers/gpu/drm/i915/display/intel_dp.h
@@ -184,5 +184,7 @@ intel_dp_compute_config_link_bpp_limits(struct intel_dp *intel_dp,
struct link_config_limits *limits);
void intel_dp_get_dsc_sink_cap(u8 dpcd_rev, struct intel_connector *connector);
+int intel_dp_dsc_max_src_input_bpc(struct drm_i915_private *i915);
+int intel_dp_dsc_min_src_input_bpc(struct drm_i915_private *i915);
#endif /* __INTEL_DP_H__ */
diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c
index 63364c9602ef..01e9d6fb9548 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
@@ -293,17 +293,14 @@ static int intel_dp_dsc_mst_compute_link_config(struct intel_encoder *encoder,
int i, num_bpc;
u8 dsc_bpc[3] = {};
int min_bpp, max_bpp, sink_min_bpp, sink_max_bpp;
- u8 dsc_max_bpc;
+ u8 dsc_max_bpc, dsc_min_bpc;
int min_compressed_bpp, max_compressed_bpp;
- /* Max DSC Input BPC for ICL is 10 and for TGL+ is 12 */
- if (DISPLAY_VER(i915) >= 12)
- dsc_max_bpc = min_t(u8, 12, conn_state->max_requested_bpc);
- else
- dsc_max_bpc = min_t(u8, 10, conn_state->max_requested_bpc);
+ dsc_max_bpc = intel_dp_dsc_max_src_input_bpc(i915);
+ dsc_min_bpc = intel_dp_dsc_min_src_input_bpc(i915);
max_bpp = min_t(u8, dsc_max_bpc * 3, limits->pipe.max_bpp);
- min_bpp = limits->pipe.min_bpp;
+ min_bpp = max_t(u8, dsc_min_bpc * 3, limits->pipe.min_bpp);
num_bpc = drm_dp_dsc_sink_supported_input_bpcs(connector->dp.dsc_dpcd,
dsc_bpc);
--
2.40.1
