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path: root/drivers/gpu/drm/i915/intel_hdmi.c
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Diffstat (limited to 'drivers/gpu/drm/i915/intel_hdmi.c')
-rw-r--r--drivers/gpu/drm/i915/intel_hdmi.c204
1 files changed, 159 insertions, 45 deletions
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index ec0779a52d53..e8abea7594ec 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -459,22 +459,31 @@ static void intel_hdmi_set_avi_infoframe(struct drm_encoder *encoder,
struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder);
const struct drm_display_mode *adjusted_mode =
&crtc_state->base.adjusted_mode;
+ struct drm_connector *connector = &intel_hdmi->attached_connector->base;
+ bool is_hdmi2_sink = connector->display_info.hdmi.scdc.supported;
union hdmi_infoframe frame;
int ret;
ret = drm_hdmi_avi_infoframe_from_display_mode(&frame.avi,
- adjusted_mode);
+ adjusted_mode,
+ is_hdmi2_sink);
if (ret < 0) {
DRM_ERROR("couldn't fill AVI infoframe\n");
return;
}
+ if (crtc_state->ycbcr420)
+ frame.avi.colorspace = HDMI_COLORSPACE_YUV420;
+ else
+ frame.avi.colorspace = HDMI_COLORSPACE_RGB;
+
drm_hdmi_avi_infoframe_quant_range(&frame.avi, adjusted_mode,
crtc_state->limited_color_range ?
HDMI_QUANTIZATION_RANGE_LIMITED :
HDMI_QUANTIZATION_RANGE_FULL,
intel_hdmi->rgb_quant_range_selectable);
+ /* TODO: handle pixel repetition for YCBCR420 outputs */
intel_write_infoframe(encoder, crtc_state, &frame);
}
@@ -1292,6 +1301,9 @@ intel_hdmi_mode_valid(struct drm_connector *connector,
if (mode->flags & DRM_MODE_FLAG_DBLCLK)
clock *= 2;
+ if (drm_mode_is_420_only(&connector->display_info, mode))
+ clock /= 2;
+
/* check if we can do 8bpc */
status = hdmi_port_clock_valid(hdmi, clock, true, force_dvi);
@@ -1321,14 +1333,21 @@ static bool hdmi_12bpc_possible(struct intel_crtc_state *crtc_state)
if (crtc_state->output_types != 1 << INTEL_OUTPUT_HDMI)
return false;
- for_each_connector_in_state(state, connector, connector_state, i) {
+ for_each_new_connector_in_state(state, connector, connector_state, i) {
const struct drm_display_info *info = &connector->display_info;
if (connector_state->crtc != crtc_state->base.crtc)
continue;
- if ((info->edid_hdmi_dc_modes & DRM_EDID_HDMI_DC_36) == 0)
- return false;
+ if (crtc_state->ycbcr420) {
+ const struct drm_hdmi_info *hdmi = &info->hdmi;
+
+ if (!(hdmi->y420_dc_modes & DRM_EDID_YCBCR420_DC_36))
+ return false;
+ } else {
+ if (!(info->edid_hdmi_dc_modes & DRM_EDID_HDMI_DC_36))
+ return false;
+ }
}
/* Display Wa #1139 */
@@ -1339,6 +1358,36 @@ static bool hdmi_12bpc_possible(struct intel_crtc_state *crtc_state)
return true;
}
+static bool
+intel_hdmi_ycbcr420_config(struct drm_connector *connector,
+ struct intel_crtc_state *config,
+ int *clock_12bpc, int *clock_8bpc)
+{
+ struct intel_crtc *intel_crtc = to_intel_crtc(config->base.crtc);
+
+ if (!connector->ycbcr_420_allowed) {
+ DRM_ERROR("Platform doesn't support YCBCR420 output\n");
+ return false;
+ }
+
+ /* YCBCR420 TMDS rate requirement is half the pixel clock */
+ config->port_clock /= 2;
+ *clock_12bpc /= 2;
+ *clock_8bpc /= 2;
+ config->ycbcr420 = true;
+
+ /* YCBCR 420 output conversion needs a scaler */
+ if (skl_update_scaler_crtc(config)) {
+ DRM_DEBUG_KMS("Scaler allocation for output failed\n");
+ return false;
+ }
+
+ intel_pch_panel_fitting(intel_crtc, config,
+ DRM_MODE_SCALE_FULLSCREEN);
+
+ return true;
+}
+
bool intel_hdmi_compute_config(struct intel_encoder *encoder,
struct intel_crtc_state *pipe_config,
struct drm_connector_state *conn_state)
@@ -1346,7 +1395,8 @@ bool intel_hdmi_compute_config(struct intel_encoder *encoder,
struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&encoder->base);
struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
struct drm_display_mode *adjusted_mode = &pipe_config->base.adjusted_mode;
- struct drm_scdc *scdc = &conn_state->connector->display_info.hdmi.scdc;
+ struct drm_connector *connector = conn_state->connector;
+ struct drm_scdc *scdc = &connector->display_info.hdmi.scdc;
struct intel_digital_connector_state *intel_conn_state =
to_intel_digital_connector_state(conn_state);
int clock_8bpc = pipe_config->base.adjusted_mode.crtc_clock;
@@ -1376,6 +1426,14 @@ bool intel_hdmi_compute_config(struct intel_encoder *encoder,
clock_12bpc *= 2;
}
+ if (drm_mode_is_420_only(&connector->display_info, adjusted_mode)) {
+ if (!intel_hdmi_ycbcr420_config(connector, pipe_config,
+ &clock_12bpc, &clock_8bpc)) {
+ DRM_ERROR("Can't support YCBCR420 output\n");
+ return false;
+ }
+ }
+
if (HAS_PCH_SPLIT(dev_priv) && !HAS_DDI(dev_priv))
pipe_config->has_pch_encoder = true;
@@ -1703,11 +1761,9 @@ static void intel_hdmi_destroy(struct drm_connector *connector)
}
static const struct drm_connector_funcs intel_hdmi_connector_funcs = {
- .dpms = drm_atomic_helper_connector_dpms,
.detect = intel_hdmi_detect,
.force = intel_hdmi_force,
.fill_modes = drm_helper_probe_single_connector_modes,
- .set_property = drm_atomic_helper_connector_set_property,
.atomic_get_property = intel_digital_connector_atomic_get_property,
.atomic_set_property = intel_digital_connector_atomic_set_property,
.late_register = intel_connector_register,
@@ -1787,45 +1843,114 @@ void intel_hdmi_handle_sink_scrambling(struct intel_encoder *encoder,
DRM_DEBUG_KMS("sink scrambling handled\n");
}
-static u8 intel_hdmi_ddc_pin(struct drm_i915_private *dev_priv,
- enum port port)
+static u8 chv_port_to_ddc_pin(struct drm_i915_private *dev_priv, enum port port)
{
- const struct ddi_vbt_port_info *info =
- &dev_priv->vbt.ddi_port_info[port];
u8 ddc_pin;
- if (info->alternate_ddc_pin) {
- DRM_DEBUG_KMS("Using DDC pin 0x%x for port %c (VBT)\n",
- info->alternate_ddc_pin, port_name(port));
- return info->alternate_ddc_pin;
+ switch (port) {
+ case PORT_B:
+ ddc_pin = GMBUS_PIN_DPB;
+ break;
+ case PORT_C:
+ ddc_pin = GMBUS_PIN_DPC;
+ break;
+ case PORT_D:
+ ddc_pin = GMBUS_PIN_DPD_CHV;
+ break;
+ default:
+ MISSING_CASE(port);
+ ddc_pin = GMBUS_PIN_DPB;
+ break;
}
+ return ddc_pin;
+}
+
+static u8 bxt_port_to_ddc_pin(struct drm_i915_private *dev_priv, enum port port)
+{
+ u8 ddc_pin;
switch (port) {
case PORT_B:
- if (IS_GEN9_LP(dev_priv) || HAS_PCH_CNP(dev_priv))
- ddc_pin = GMBUS_PIN_1_BXT;
- else
- ddc_pin = GMBUS_PIN_DPB;
+ ddc_pin = GMBUS_PIN_1_BXT;
break;
case PORT_C:
- if (IS_GEN9_LP(dev_priv) || HAS_PCH_CNP(dev_priv))
- ddc_pin = GMBUS_PIN_2_BXT;
- else
- ddc_pin = GMBUS_PIN_DPC;
+ ddc_pin = GMBUS_PIN_2_BXT;
+ break;
+ default:
+ MISSING_CASE(port);
+ ddc_pin = GMBUS_PIN_1_BXT;
+ break;
+ }
+ return ddc_pin;
+}
+
+static u8 cnp_port_to_ddc_pin(struct drm_i915_private *dev_priv,
+ enum port port)
+{
+ u8 ddc_pin;
+
+ switch (port) {
+ case PORT_B:
+ ddc_pin = GMBUS_PIN_1_BXT;
+ break;
+ case PORT_C:
+ ddc_pin = GMBUS_PIN_2_BXT;
break;
case PORT_D:
- if (HAS_PCH_CNP(dev_priv))
- ddc_pin = GMBUS_PIN_4_CNP;
- else if (IS_CHERRYVIEW(dev_priv))
- ddc_pin = GMBUS_PIN_DPD_CHV;
- else
- ddc_pin = GMBUS_PIN_DPD;
+ ddc_pin = GMBUS_PIN_4_CNP;
+ break;
+ default:
+ MISSING_CASE(port);
+ ddc_pin = GMBUS_PIN_1_BXT;
+ break;
+ }
+ return ddc_pin;
+}
+
+static u8 g4x_port_to_ddc_pin(struct drm_i915_private *dev_priv,
+ enum port port)
+{
+ u8 ddc_pin;
+
+ switch (port) {
+ case PORT_B:
+ ddc_pin = GMBUS_PIN_DPB;
+ break;
+ case PORT_C:
+ ddc_pin = GMBUS_PIN_DPC;
+ break;
+ case PORT_D:
+ ddc_pin = GMBUS_PIN_DPD;
break;
default:
MISSING_CASE(port);
ddc_pin = GMBUS_PIN_DPB;
break;
}
+ return ddc_pin;
+}
+
+static u8 intel_hdmi_ddc_pin(struct drm_i915_private *dev_priv,
+ enum port port)
+{
+ const struct ddi_vbt_port_info *info =
+ &dev_priv->vbt.ddi_port_info[port];
+ u8 ddc_pin;
+
+ if (info->alternate_ddc_pin) {
+ DRM_DEBUG_KMS("Using DDC pin 0x%x for port %c (VBT)\n",
+ info->alternate_ddc_pin, port_name(port));
+ return info->alternate_ddc_pin;
+ }
+
+ if (IS_CHERRYVIEW(dev_priv))
+ ddc_pin = chv_port_to_ddc_pin(dev_priv, port);
+ else if (IS_GEN9_LP(dev_priv))
+ ddc_pin = bxt_port_to_ddc_pin(dev_priv, port);
+ else if (HAS_PCH_CNP(dev_priv))
+ ddc_pin = cnp_port_to_ddc_pin(dev_priv, port);
+ else
+ ddc_pin = g4x_port_to_ddc_pin(dev_priv, port);
DRM_DEBUG_KMS("Using DDC pin 0x%x for port %c (platform default)\n",
ddc_pin, port_name(port));
@@ -1859,25 +1984,14 @@ void intel_hdmi_init_connector(struct intel_digital_port *intel_dig_port,
connector->doublescan_allowed = 0;
connector->stereo_allowed = 1;
+ if (IS_GEMINILAKE(dev_priv))
+ connector->ycbcr_420_allowed = true;
+
intel_hdmi->ddc_bus = intel_hdmi_ddc_pin(dev_priv, port);
- switch (port) {
- case PORT_B:
- intel_encoder->hpd_pin = HPD_PORT_B;
- break;
- case PORT_C:
- intel_encoder->hpd_pin = HPD_PORT_C;
- break;
- case PORT_D:
- intel_encoder->hpd_pin = HPD_PORT_D;
- break;
- case PORT_E:
- intel_encoder->hpd_pin = HPD_PORT_E;
- break;
- default:
- MISSING_CASE(port);
+ if (WARN_ON(port == PORT_A))
return;
- }
+ intel_encoder->hpd_pin = intel_hpd_pin(port);
if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
intel_hdmi->write_infoframe = vlv_write_infoframe;
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