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drm/i915: Extract intel_edp_fixup_vbt_bpp()
We have the same "override eDP VBT bpp with the current bpp" code duplciated in two places. Extract it to a helper function. TODO: Having this in .get_config() is pretty ugly. Should probably try to move it somewhere else (setup_hw_state()/etc.)... Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220510104242.6099-3-ville.syrjala@linux.intel.com Reviewed-by: Jani Nikula <jani.nikula@intel.com>
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4 changed files with 30 additions and 40 deletions
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@ -395,26 +395,8 @@ static void intel_dp_get_config(struct intel_encoder *encoder,
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intel_dotclock_calculate(pipe_config->port_clock,
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&pipe_config->dp_m_n);
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if (intel_dp_is_edp(intel_dp) && dev_priv->vbt.edp.bpp &&
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pipe_config->pipe_bpp > dev_priv->vbt.edp.bpp) {
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/*
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* This is a big fat ugly hack.
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*
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* Some machines in UEFI boot mode provide us a VBT that has 18
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* bpp and 1.62 GHz link bandwidth for eDP, which for reasons
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* unknown we fail to light up. Yet the same BIOS boots up with
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* 24 bpp and 2.7 GHz link. Use the same bpp as the BIOS uses as
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* max, not what it tells us to use.
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*
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* Note: This will still be broken if the eDP panel is not lit
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* up by the BIOS, and thus we can't get the mode at module
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* load.
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*/
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drm_dbg_kms(&dev_priv->drm,
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"pipe has %d bpp for eDP panel, overriding BIOS-provided max %d bpp\n",
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pipe_config->pipe_bpp, dev_priv->vbt.edp.bpp);
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dev_priv->vbt.edp.bpp = pipe_config->pipe_bpp;
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}
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if (intel_dp_is_edp(intel_dp))
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intel_edp_fixup_vbt_bpp(encoder, pipe_config->pipe_bpp);
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}
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static void
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@ -3433,26 +3433,8 @@ static void intel_ddi_get_config(struct intel_encoder *encoder,
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pipe_config->has_audio =
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intel_ddi_is_audio_enabled(dev_priv, cpu_transcoder);
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if (encoder->type == INTEL_OUTPUT_EDP && dev_priv->vbt.edp.bpp &&
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pipe_config->pipe_bpp > dev_priv->vbt.edp.bpp) {
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/*
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* This is a big fat ugly hack.
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*
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* Some machines in UEFI boot mode provide us a VBT that has 18
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* bpp and 1.62 GHz link bandwidth for eDP, which for reasons
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* unknown we fail to light up. Yet the same BIOS boots up with
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* 24 bpp and 2.7 GHz link. Use the same bpp as the BIOS uses as
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* max, not what it tells us to use.
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*
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* Note: This will still be broken if the eDP panel is not lit
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* up by the BIOS, and thus we can't get the mode at module
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* load.
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*/
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drm_dbg_kms(&dev_priv->drm,
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"pipe has %d bpp for eDP panel, overriding BIOS-provided max %d bpp\n",
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pipe_config->pipe_bpp, dev_priv->vbt.edp.bpp);
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dev_priv->vbt.edp.bpp = pipe_config->pipe_bpp;
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}
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if (encoder->type == INTEL_OUTPUT_EDP)
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intel_edp_fixup_vbt_bpp(encoder, pipe_config->pipe_bpp);
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ddi_dotclock_get(pipe_config);
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@ -2709,6 +2709,31 @@ static void intel_edp_mso_mode_fixup(struct intel_connector *connector,
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DRM_MODE_ARG(mode));
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}
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void intel_edp_fixup_vbt_bpp(struct intel_encoder *encoder, int pipe_bpp)
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{
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struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
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if (dev_priv->vbt.edp.bpp && pipe_bpp > dev_priv->vbt.edp.bpp) {
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/*
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* This is a big fat ugly hack.
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*
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* Some machines in UEFI boot mode provide us a VBT that has 18
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* bpp and 1.62 GHz link bandwidth for eDP, which for reasons
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* unknown we fail to light up. Yet the same BIOS boots up with
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* 24 bpp and 2.7 GHz link. Use the same bpp as the BIOS uses as
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* max, not what it tells us to use.
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*
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* Note: This will still be broken if the eDP panel is not lit
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* up by the BIOS, and thus we can't get the mode at module
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* load.
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*/
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drm_dbg_kms(&dev_priv->drm,
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"pipe has %d bpp for eDP panel, overriding BIOS-provided max %d bpp\n",
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pipe_bpp, dev_priv->vbt.edp.bpp);
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dev_priv->vbt.edp.bpp = pipe_bpp;
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}
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}
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static void intel_edp_mso_init(struct intel_dp *intel_dp)
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{
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struct drm_i915_private *i915 = dp_to_i915(intel_dp);
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@ -63,6 +63,7 @@ enum irqreturn intel_dp_hpd_pulse(struct intel_digital_port *dig_port,
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void intel_edp_backlight_on(const struct intel_crtc_state *crtc_state,
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const struct drm_connector_state *conn_state);
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void intel_edp_backlight_off(const struct drm_connector_state *conn_state);
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void intel_edp_fixup_vbt_bpp(struct intel_encoder *encoder, int pipe_bpp);
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void intel_dp_mst_suspend(struct drm_i915_private *dev_priv);
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void intel_dp_mst_resume(struct drm_i915_private *dev_priv);
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int intel_dp_max_link_rate(struct intel_dp *intel_dp);
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