From ba88d153526f31777ef40b065a772e8dbf97b7c0 Mon Sep 17 00:00:00 2001 From: Manasi Navare Date: Thu, 1 Sep 2016 15:08:08 -0700 Subject: [PATCH] drm/i915: Split intel_ddi_pre_enable() into DP and HDMI versions Split intel_ddi_pre_enable() into encoder type specific versions that don't depend on crtc_state. The necessary parameters are passed as function arguments. This split will be necessary for implementing DP upfront link training. v3: * Rebased onto latest kernel (Manasi) v2: * Rebased onto kernel v4.7 (Jim) Reviewed-by: Durgadoss R Signed-off-by: Ander Conselvan de Oliveira Signed-off-by: Jim Bride Signed-off-by: Manasi Navare Signed-off-by: Rodrigo Vivi --- drivers/gpu/drm/i915/intel_ddi.c | 105 ++++++++++++++++++------------- 1 file changed, 60 insertions(+), 45 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c index f798760426c6..e4b875e919dd 100644 --- a/drivers/gpu/drm/i915/intel_ddi.c +++ b/drivers/gpu/drm/i915/intel_ddi.c @@ -1634,60 +1634,75 @@ void intel_ddi_clk_select(struct intel_encoder *encoder, } } +static void intel_ddi_pre_enable_dp(struct intel_encoder *encoder, + int link_rate, uint32_t lane_count, + struct intel_shared_dpll *pll, + bool link_mst) +{ + struct intel_dp *intel_dp = enc_to_intel_dp(&encoder->base); + struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); + enum port port = intel_ddi_get_encoder_port(encoder); + + intel_dp_set_link_params(intel_dp, link_rate, lane_count, + link_mst); + if (encoder->type == INTEL_OUTPUT_EDP) + intel_edp_panel_on(intel_dp); + + intel_ddi_clk_select(encoder, pll); + intel_prepare_dp_ddi_buffers(encoder); + intel_ddi_init_dp_buf_reg(encoder); + intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_ON); + intel_dp_start_link_train(intel_dp); + if (port != PORT_A || INTEL_GEN(dev_priv) >= 9) + intel_dp_stop_link_train(intel_dp); +} + +static void intel_ddi_pre_enable_hdmi(struct intel_encoder *encoder, + bool has_hdmi_sink, + struct drm_display_mode *adjusted_mode, + struct intel_shared_dpll *pll) +{ + struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&encoder->base); + struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); + struct drm_encoder *drm_encoder = &encoder->base; + enum port port = intel_ddi_get_encoder_port(encoder); + int level = intel_ddi_hdmi_level(dev_priv, port); + + intel_dp_dual_mode_set_tmds_output(intel_hdmi, true); + intel_ddi_clk_select(encoder, pll); + intel_prepare_hdmi_ddi_buffers(encoder); + if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv)) + skl_ddi_set_iboost(encoder, level); + else if (IS_BROXTON(dev_priv)) + bxt_ddi_vswing_sequence(dev_priv, level, port, + INTEL_OUTPUT_HDMI); + + intel_hdmi->set_infoframes(drm_encoder, + has_hdmi_sink, + adjusted_mode); +} + static void intel_ddi_pre_enable(struct intel_encoder *intel_encoder, struct intel_crtc_state *pipe_config, struct drm_connector_state *conn_state) { struct drm_encoder *encoder = &intel_encoder->base; - struct drm_i915_private *dev_priv = to_i915(encoder->dev); struct intel_crtc *crtc = to_intel_crtc(encoder->crtc); - enum port port = intel_ddi_get_encoder_port(intel_encoder); int type = intel_encoder->type; - if (type == INTEL_OUTPUT_HDMI) { - struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder); - - intel_dp_dual_mode_set_tmds_output(intel_hdmi, true); - } - - if (type == INTEL_OUTPUT_EDP) { - struct intel_dp *intel_dp = enc_to_intel_dp(encoder); - intel_edp_panel_on(intel_dp); - } - - intel_ddi_clk_select(intel_encoder, crtc->config->shared_dpll); - if (type == INTEL_OUTPUT_DP || type == INTEL_OUTPUT_EDP) { - struct intel_dp *intel_dp = enc_to_intel_dp(encoder); - - intel_prepare_dp_ddi_buffers(intel_encoder); - - intel_dp_set_link_params(intel_dp, crtc->config->port_clock, - crtc->config->lane_count, - intel_crtc_has_type(crtc->config, - INTEL_OUTPUT_DP_MST)); - - intel_ddi_init_dp_buf_reg(intel_encoder); - - intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_ON); - intel_dp_start_link_train(intel_dp); - if (port != PORT_A || INTEL_INFO(dev_priv)->gen >= 9) - intel_dp_stop_link_train(intel_dp); - } else if (type == INTEL_OUTPUT_HDMI) { - struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder); - int level = intel_ddi_hdmi_level(dev_priv, port); - - intel_prepare_hdmi_ddi_buffers(intel_encoder); - - if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv)) - skl_ddi_set_iboost(intel_encoder, level); - else if (IS_BROXTON(dev_priv)) - bxt_ddi_vswing_sequence(dev_priv, level, port, - INTEL_OUTPUT_HDMI); - - intel_hdmi->set_infoframes(encoder, - crtc->config->has_hdmi_sink, - &crtc->config->base.adjusted_mode); + intel_ddi_pre_enable_dp(intel_encoder, + crtc->config->port_clock, + crtc->config->lane_count, + crtc->config->shared_dpll, + intel_crtc_has_type(crtc->config, + INTEL_OUTPUT_DP_MST)); + } + if (type == INTEL_OUTPUT_HDMI) { + intel_ddi_pre_enable_hdmi(intel_encoder, + crtc->config->has_hdmi_sink, + &crtc->config->base.adjusted_mode, + crtc->config->shared_dpll); } }