From 0c1f528cb13708ff3ba462a5c757d5588fc47d36 Mon Sep 17 00:00:00 2001 From: Shashank Sharma Date: Thu, 13 Jul 2017 21:03:07 +0530 Subject: drm: handle HDMI 2.0 VICs in AVI info-frames MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Cc: Jose Abreu Cc: Andrzej Hajda Cc: Alex Deucher Cc: Daniel Vetter 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 Reviewed-by: Neil Armstrong Signed-off-by: Shashank Sharma Link: http://patchwork.freedesktop.org/patch/msgid/1499960000-9232-2-git-send-email-shashank.sharma@intel.com Signed-off-by: Ville Syrjälä --- include/drm/drm_edid.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include/drm') 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); -- cgit v1.2.3