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| author |   Ankit Nautiyal <ankit.k.nautiyal@intel.com> | 2024-12-17 15:02:31 +0530 |
|---|---|---|
| committer | Ankit Nautiyal <ankit.k.nautiyal@intel.com> | 2024-12-24 15:19:54 +0530 |
| commit | 230a14f4c586be1f6a58cd35d35d7dfa34eb071e (patch) | |
| tree | eec95ff880968f058e9e430975eb93dbfa576b57 /drivers/gpu/drm/i915/display/intel_dp_mst.c | |
| parent | drm/i915/selftests: Use preemption timeout on cleanup (diff) | |
| download | wireguard-linux-230a14f4c586be1f6a58cd35d35d7dfa34eb071e.tar.xz wireguard-linux-230a14f4c586be1f6a58cd35d35d7dfa34eb071e.zip | |
drm/i915/dp: Refactor FEC support check in intel_dp_supports_dsc
Forward Error Correction is required for DP if we are using DSC but
is optional for eDP.
Currently the helper intel_dp_supports_dsc checks if fec_enable is set for
DP or not. The helper is called after fec_enable is set in crtc_state.
Instead of this a better approach would be to:
first, call intel_dp_supports_dsc to check for DSC support
(along with FEC requirement for DP) and then set fec_enable for DP
(if not already set) in crtc_state.
To achieve this, remove the check for fec_enable in the helper and instead
check for FEC support for DP. With this change the helper
intel_dp_supports_dsc can be called earlier and return early if DSC is
not supported. The structure intel_dp is added to the helper to get the
FEC support for DP.
v2: Pass intel_dp to adjust_limits_for_dsc_hblank_expansion_quirk
instead of deriving it from connector. (Jani)
Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241217093244.3938132-2-ankit.k.nautiyal@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_dp_mst.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dp_mst.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c index 326ff20a5a49..4217350eefb0 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c @@ -519,7 +519,8 @@ hblank_expansion_quirk_needs_dsc(const struct intel_connector *connector, } static bool -adjust_limits_for_dsc_hblank_expansion_quirk(const struct intel_connector *connector, +adjust_limits_for_dsc_hblank_expansion_quirk(struct intel_dp *intel_dp, + const struct intel_connector *connector, const struct intel_crtc_state *crtc_state, struct link_config_limits *limits, bool dsc) @@ -532,7 +533,7 @@ adjust_limits_for_dsc_hblank_expansion_quirk(const struct intel_connector *conne return true; if (!dsc) { - if (intel_dp_supports_dsc(connector, crtc_state)) { + if (intel_dp_supports_dsc(intel_dp, connector, crtc_state)) { drm_dbg_kms(display->drm, "[CRTC:%d:%s][CONNECTOR:%d:%s] DSC needed by hblank expansion quirk\n", crtc->base.base.id, crtc->base.name, @@ -588,7 +589,8 @@ mst_stream_compute_config_limits(struct intel_dp *intel_dp, limits)) return false; - return adjust_limits_for_dsc_hblank_expansion_quirk(connector, + return adjust_limits_for_dsc_hblank_expansion_quirk(intel_dp, + connector, crtc_state, limits, dsc); @@ -651,7 +653,7 @@ static int mst_stream_compute_config(struct intel_encoder *encoder, str_yes_no(ret), str_yes_no(joiner_needs_dsc), str_yes_no(intel_dp->force_dsc_en)); - if (!intel_dp_supports_dsc(connector, pipe_config)) + if (!intel_dp_supports_dsc(intel_dp, connector, pipe_config)) return -EINVAL; if (!mst_stream_compute_config_limits(intel_dp, connector, |