diff options
| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2021-10-01 16:00:59 +0300 |
|---|---|---|
| committer | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2021-10-04 12:42:39 +0300 |
| commit | 5bafd85dd77080730ca7115ba6b5c4ef88493b6b (patch) | |
| tree | 09cd1d5f4e2e83968a4b14cad16d9d7669766044 /drivers | |
| parent | f820693bc2381d73d2769d8b7cc16210f21244a8 (diff) | |
drm/i915: Introduce has_buf_trans_select()
Add a small helper to determine if DDI_BUF_CTL uses the
DDI_BUF_TRANS_SELECT field, and whether we have the
accompanying DDI_BUF_TRANS table in the hardware.
Cc: Imre Deak <imre.deak@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211001130107.1746-3-ville.syrjala@linux.intel.com
Reviewed-by: Imre Deak <imre.deak@intel.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_ddi.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c index f6429114ce7c..dbcf4ddd0f3b 100644 --- a/drivers/gpu/drm/i915/display/intel_ddi.c +++ b/drivers/gpu/drm/i915/display/intel_ddi.c @@ -92,6 +92,11 @@ static int intel_ddi_hdmi_level(struct intel_encoder *encoder, return level; } +static bool has_buf_trans_select(struct drm_i915_private *i915) +{ + return DISPLAY_VER(i915) < 10 && !IS_BROXTON(i915); +} + static bool has_iboost(struct drm_i915_private *i915) { return DISPLAY_VER(i915) == 9 && !IS_BROXTON(i915); @@ -2640,7 +2645,8 @@ static void hsw_ddi_pre_enable_dp(struct intel_atomic_state *state, icl_ddi_vswing_sequence(encoder, crtc_state, level); else if (IS_GEMINILAKE(dev_priv) || IS_BROXTON(dev_priv)) bxt_ddi_vswing_sequence(encoder, crtc_state, level); - else + + if (has_buf_trans_select(dev_priv)) hsw_prepare_dp_ddi_buffers(encoder, crtc_state); intel_ddi_power_up_lanes(encoder, crtc_state); @@ -3086,7 +3092,8 @@ static void intel_enable_ddi_hdmi(struct intel_atomic_state *state, icl_ddi_vswing_sequence(encoder, crtc_state, level); else if (IS_GEMINILAKE(dev_priv) || IS_BROXTON(dev_priv)) bxt_ddi_vswing_sequence(encoder, crtc_state, level); - else + + if (has_buf_trans_select(dev_priv)) hsw_prepare_hdmi_ddi_buffers(encoder, crtc_state, level); if (has_iboost(dev_priv)) |