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authorShashank Sharma <shashank.sharma@intel.com>2017-07-13 18:33:07 +0300
committerVille Syrjälä <ville.syrjala@linux.intel.com>2017-07-14 21:23:54 +0300
commit0c1f528cb13708ff3ba462a5c757d5588fc47d36 (patch)
tree28b936e476574a9fa6a1a3c0d7c0ad684ca83222 /include/drm/drm_edid.h
parent3589211e9b0316884f55acf3aeb0a979db79db9c (diff)
downloadlinux-0c1f528cb13708ff3ba462a5c757d5588fc47d36.tar.xz
drm: handle HDMI 2.0 VICs in AVI info-frames
HDMI 1.4b support the CEA video modes as per range of CEA-861-D (VIC 1-64). For any other mode, the VIC filed in AVI infoframes should be 0. HDMI 2.0 sinks, support video modes range as per CEA-861-F spec, which is extended to (VIC 1-107). This patch adds a bool input variable, which indicates if the connected sink is a HDMI 2.0 sink or not. This will make sure that we don't pass a HDMI 2.0 VIC to a HDMI 1.4 sink. This patch touches all drm drivers, who are callers of this function drm_hdmi_avi_infoframe_from_display_mode but to make sure there is no change in current behavior, is_hdmi2 is kept as false. In case of I915 driver, this patch: - checks if the connected display is HDMI 2.0. - HDMI infoframes carry one of this two type of information: - VIC for 4K modes for HDMI 1.4 sinks - S3D information for S3D modes As CEA-861-F has already defined VICs for 4K videomodes, this patch doesn't allow sending HDMI infoframes for HDMI 2.0 sinks, until the mode is 3D. Cc: Ville Syrjala <ville.syrjala@linux.intel.com> Cc: Jose Abreu <jose.abreu@synopsys.com> Cc: Andrzej Hajda <a.hajda@samsung.com> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: Daniel Vetter <daniel.vetter@intel.com> PS: This patch touches a few lines in few files, which were already above 80 char, so checkpatch gives 80 char warning again. - gpu/drm/omapdrm/omap_encoder.c - gpu/drm/i915/intel_sdvo.c V2: Rebase, Added r-b from Andrzej V3: Addressed review comment from Ville: - Do not send VICs in both AVI-IF and HDMI-IF send only one of it. V4: Rebase V5: Added r-b from Neil. Addressed review comments from Ville - Do not block HDMI vendor IF, instead check for VIC while handling AVI infoframes V6: Rebase V7: Rebase Reviewed-by: Andrzej Hajda <a.hajda@samsung.com> Reviewed-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Shashank Sharma <shashank.sharma@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1499960000-9232-2-git-send-email-shashank.sharma@intel.com Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Diffstat (limited to 'include/drm/drm_edid.h')
-rw-r--r--include/drm/drm_edid.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/drm/drm_edid.h b/include/drm/drm_edid.h
index 7b9f48b62e07..89c00626d654 100644
--- a/include/drm/drm_edid.h
+++ b/include/drm/drm_edid.h
@@ -343,7 +343,8 @@ drm_load_edid_firmware(struct drm_connector *connector)
int
drm_hdmi_avi_infoframe_from_display_mode(struct hdmi_avi_infoframe *frame,
- const struct drm_display_mode *mode);
+ const struct drm_display_mode *mode,
+ bool is_hdmi2_sink);
int
drm_hdmi_vendor_infoframe_from_display_mode(struct hdmi_vendor_infoframe *frame,
const struct drm_display_mode *mode);