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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 <durgadoss.r@intel.com>
Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Signed-off-by: Jim Bride <jim.bride@linux.intel.com>
Signed-off-by: Manasi Navare <manasi.d.navare@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
This commit is contained in:
Manasi Navare 2016-09-01 15:08:08 -07:00 committed by Rodrigo Vivi
parent c856052abc
commit ba88d15352
1 changed files with 60 additions and 45 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

97
drivers/gpu/drm/i915/intel_ddi.c
View File

@ -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,
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));
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,
}
if (type == INTEL_OUTPUT_HDMI) {
intel_ddi_pre_enable_hdmi(intel_encoder,
crtc->config->has_hdmi_sink,
&crtc->config->base.adjusted_mode);
&crtc->config->base.adjusted_mode,
crtc->config->shared_dpll);
}
}