This adds colorspace information to HDMI AVI infoframe. A helper function is added to program the same.
v2: Moved this to drm core instead of i915 driver.
v3: Exported the helper function.
Signed-off-by: Uma Shankar uma.shankar@intel.com --- drivers/gpu/drm/drm_connector.c | 2 +- drivers/gpu/drm/drm_edid.c | 29 +++++++++++++++++++++++++++++ include/drm/drm_edid.h | 6 ++++++ 3 files changed, 36 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c index 4f73591..b19e867 100644 --- a/drivers/gpu/drm/drm_connector.c +++ b/drivers/gpu/drm/drm_connector.c @@ -862,7 +862,7 @@ int drm_display_info_set_bus_formats(struct drm_display_info *info, { DRM_MODE_COLORIMETRY_XVYCC_709, "XVYCC_709" }, /* Colorimetry based on IEC 61966-2-5 */ { DRM_MODE_COLORIMETRY_OPRGB, "opRGB" }, - { DRM_MODE_COLORIMETRY_DCI_P3, "DCI-P3" }, + { DRM_MODE_COLORIMETRY_DCI_P3_RGB_D65, "DCI-P3_RGB_D65" }, /* DP MSA Colorimetry */ { DRM_MODE_DP_COLORIMETRY_YCBCR_ITU_601, "YCBCR_ITU_601" }, { DRM_MODE_DP_COLORIMETRY_YCBCR_ITU_709, "YCBCR_ITU_709" }, diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index 990b190..6ef9f4c 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -4925,6 +4925,35 @@ static bool is_hdmi2_sink(struct drm_connector *connector) EXPORT_SYMBOL(drm_hdmi_avi_infoframe_from_display_mode);
/** + * drm_hdmi_avi_infoframe_colorspace() - fill the HDMI AVI infoframe + * colorspace information + * @frame: HDMI AVI infoframe + * @conn_state: connector state + */ +void +drm_hdmi_avi_infoframe_colorspace(struct hdmi_avi_infoframe *frame, + const struct drm_connector_state *conn_state) +{ + if (conn_state->colorspace == DRM_MODE_COLORIMETRY_DEFAULT) { + /* Set No Data as default for HDMI */ + frame->colorimetry = DRM_MODE_COLORIMETRY_NO_DATA; + } else if (conn_state->colorspace < DRM_MODE_COLORIMETRY_XVYCC_601) { + frame->colorimetry = conn_state->colorspace; + } else { + frame->colorimetry = HDMI_COLORIMETRY_EXTENDED; + /* + * Starting from extended list where COLORIMETRY_XV_YCC_601 + * is the first extended mode and its value is 0 as per HDMI + * specification. + * ToDO: Extend to support ACE formats defined in CTA 861.G + */ + frame->extended_colorimetry = conn_state->colorspace - + DRM_MODE_COLORIMETRY_XVYCC_601; + } +} +EXPORT_SYMBOL(drm_hdmi_avi_infoframe_colorspace); + +/** * drm_hdmi_avi_infoframe_quant_range() - fill the HDMI AVI infoframe * quantization range information * @frame: HDMI AVI infoframe diff --git a/include/drm/drm_edid.h b/include/drm/drm_edid.h index 8dc1a08..9d3b5b9 100644 --- a/include/drm/drm_edid.h +++ b/include/drm/drm_edid.h @@ -331,6 +331,7 @@ struct cea_sad {
struct drm_encoder; struct drm_connector; +struct drm_connector_state; struct drm_display_mode;
int drm_edid_to_sad(struct edid *edid, struct cea_sad **sads); @@ -358,6 +359,11 @@ int drm_av_sync_delay(struct drm_connector *connector, drm_hdmi_vendor_infoframe_from_display_mode(struct hdmi_vendor_infoframe *frame, struct drm_connector *connector, const struct drm_display_mode *mode); + +void +drm_hdmi_avi_infoframe_colorspace(struct hdmi_avi_infoframe *frame, + const struct drm_connector_state *conn_state); + void drm_hdmi_avi_infoframe_quant_range(struct hdmi_avi_infoframe *frame, struct drm_connector *connector,