Choosing correct table for Vswing / Pre-emphasis Override is platform specific. It also requires different checks that are already used for choosing predefined tables.
Add new get_buf_trans_override() vfunc into intel_encoder returning deparsed table from VBT#57. In next patches, set it inside already present if-ladder from intel_ddi_buf_trans_init() instead of duplicating it. Note that get_buf_trans() cannot be overwritten since there are cases when we need to rollback although VS/PE-O was requested, eg. DP is not connected or feature is not yet implemented for the platform. Assume that vfunc returns NULL on rollback and return predefined tables. Suggested-by: Jani Nikula <[email protected]> Signed-off-by: Michał Grzelak <[email protected]> --- drivers/gpu/drm/i915/display/intel_ddi_buf_trans.c | 8 ++++++++ drivers/gpu/drm/i915/display/intel_display_types.h | 3 +++ 2 files changed, 11 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_ddi_buf_trans.c b/drivers/gpu/drm/i915/display/intel_ddi_buf_trans.c index 4cd1e4d76c7a..f31283a0331b 100644 --- a/drivers/gpu/drm/i915/display/intel_ddi_buf_trans.c +++ b/drivers/gpu/drm/i915/display/intel_ddi_buf_trans.c @@ -1857,5 +1857,13 @@ const struct intel_ddi_buf_trans *intel_ddi_buf_trans_get(struct intel_encoder * const struct intel_crtc_state *crtc_state, int *n_entries) { + if (encoder->get_buf_trans_override) { + const struct intel_ddi_buf_trans *override; + + override = encoder->get_buf_trans_override(encoder, crtc_state, n_entries); + if (override) + return intel_get_buf_trans(override, n_entries); + } + return encoder->get_buf_trans(encoder, crtc_state, n_entries); } diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h index c048da7d6fea..881226a1eda3 100644 --- a/drivers/gpu/drm/i915/display/intel_display_types.h +++ b/drivers/gpu/drm/i915/display/intel_display_types.h @@ -289,6 +289,9 @@ struct intel_encoder { */ enum icl_port_dpll_id (*port_pll_type)(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state); + const struct intel_ddi_buf_trans *(*get_buf_trans_override)(struct intel_encoder *encoder, + const struct intel_crtc_state *crtc_state, + int *n_entries); const struct intel_ddi_buf_trans *(*get_buf_trans)(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state, int *n_entries); -- 2.45.2
