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| author | Shashank Sharma <shashank.sharma@intel.com> | 2017-07-13 21:03:13 +0530 |
|---|---|---|
| committer | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2017-07-14 21:23:54 +0300 |
| commit | e6a9a2c3dc4377f62650faf1c978d073c55d62ec (patch) | |
| tree | c2f0bc9e48c50ed4b7717fd38cc60d84c0e76126 | |
| parent | 832d4f2f417d1786769c7a91a0a6363ea58cfc10 (diff) | |
| download | linux-e6a9a2c3dc4377f62650faf1c978d073c55d62ec.tar.gz linux-e6a9a2c3dc4377f62650faf1c978d073c55d62ec.tar.bz2 linux-e6a9a2c3dc4377f62650faf1c978d073c55d62ec.zip | |
drm/edid: parse ycbcr 420 deep color information
CEA-861-F spec adds ycbcr420 deep color support information
in hf-vsdb block. This patch extends the existing hf-vsdb parsing
function by adding parsing of ycbcr420 deep color support from the
EDID and adding it into display information stored.
V2: Rebase
V3: Rebase
V4: Moved definition of y420_dc_modes into this patch, where its used
(Ville)
V5: Optimize function, if(conditions) not reqd (Ville)
V6: Rebase
V7: Rebase
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Jose Abreu <joabreu@synopsys.com>
Signed-off-by: Shashank Sharma <shashank.sharma@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1499960000-9232-8-git-send-email-shashank.sharma@intel.com
[vsyrjala: Fix sparse indentation warn]
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
| -rw-r--r-- | drivers/gpu/drm/drm_edid.c | 12 | ||||
| -rw-r--r-- | include/drm/drm_connector.h | 3 | ||||
| -rw-r--r-- | include/drm/drm_edid.h | 8 |
3 files changed, 23 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index 31881a71118d..6bb6337be920 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -4202,6 +4202,16 @@ drm_default_rgb_quant_range(const struct drm_display_mode *mode) } EXPORT_SYMBOL(drm_default_rgb_quant_range); +static void drm_parse_ycbcr420_deep_color_info(struct drm_connector *connector, + const u8 *db) +{ + u8 dc_mask; + struct drm_hdmi_info *hdmi = &connector->display_info.hdmi; + + dc_mask = db[7] & DRM_EDID_YCBCR420_DC_MASK; + hdmi->y420_dc_modes |= dc_mask; +} + static void drm_parse_hdmi_forum_vsdb(struct drm_connector *connector, const u8 *hf_vsdb) { @@ -4242,6 +4252,8 @@ static void drm_parse_hdmi_forum_vsdb(struct drm_connector *connector, scdc->scrambling.low_rates = true; } } + + drm_parse_ycbcr420_deep_color_info(connector, hf_vsdb); } static void drm_parse_hdmi_deep_color_info(struct drm_connector *connector, diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h index 225e09256645..4bc088269d05 100644 --- a/include/drm/drm_connector.h +++ b/include/drm/drm_connector.h @@ -154,6 +154,9 @@ struct drm_hdmi_info { /** @y420_cmdb_map: bitmap of SVD index, to extraxt vcb modes */ u64 y420_cmdb_map; + + /** @y420_dc_modes: bitmap of deep color support index */ + u8 y420_dc_modes; }; /** diff --git a/include/drm/drm_edid.h b/include/drm/drm_edid.h index 89c00626d654..1e1908a6b1d6 100644 --- a/include/drm/drm_edid.h +++ b/include/drm/drm_edid.h @@ -213,6 +213,14 @@ struct detailed_timing { #define DRM_EDID_HDMI_DC_30 (1 << 4) #define DRM_EDID_HDMI_DC_Y444 (1 << 3) +/* YCBCR 420 deep color modes */ +#define DRM_EDID_YCBCR420_DC_48 (1 << 6) +#define DRM_EDID_YCBCR420_DC_36 (1 << 5) +#define DRM_EDID_YCBCR420_DC_30 (1 << 4) +#define DRM_EDID_YCBCR420_DC_MASK (DRM_EDID_YCBCR420_DC_48 | \ + DRM_EDID_YCBCR420_DC_36 | \ + DRM_EDID_YCBCR420_DC_30) + /* ELD Header Block */ #define DRM_ELD_HEADER_BLOCK_SIZE 4 |