diff options
| author | Shashank Sharma <shashank.sharma@intel.com> | 2017-07-13 21:03:07 +0530 |
|---|---|---|
| committer | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2017-07-14 21:23:54 +0300 |
| commit | 0c1f528cb13708ff3ba462a5c757d5588fc47d36 (patch) | |
| tree | 28b936e476574a9fa6a1a3c0d7c0ad684ca83222 /drivers/gpu/drm/tegra | |
| parent | 3589211e9b0316884f55acf3aeb0a979db79db9c (diff) | |
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 'drivers/gpu/drm/tegra')
| -rw-r--r-- | drivers/gpu/drm/tegra/hdmi.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/tegra/sor.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/tegra/hdmi.c b/drivers/gpu/drm/tegra/hdmi.c index cda0491ed6bf..718d8db406a6 100644 --- a/drivers/gpu/drm/tegra/hdmi.c +++ b/drivers/gpu/drm/tegra/hdmi.c @@ -734,7 +734,7 @@ static void tegra_hdmi_setup_avi_infoframe(struct tegra_hdmi *hdmi, u8 buffer[17]; ssize_t err; - err = drm_hdmi_avi_infoframe_from_display_mode(&frame, mode); + err = drm_hdmi_avi_infoframe_from_display_mode(&frame, mode, false); if (err < 0) { dev_err(hdmi->dev, "failed to setup AVI infoframe: %zd\n", err); return; diff --git a/drivers/gpu/drm/tegra/sor.c b/drivers/gpu/drm/tegra/sor.c index a8f528925009..fb2709c0c461 100644 --- a/drivers/gpu/drm/tegra/sor.c +++ b/drivers/gpu/drm/tegra/sor.c @@ -1904,7 +1904,7 @@ tegra_sor_hdmi_setup_avi_infoframe(struct tegra_sor *sor, value &= ~INFOFRAME_CTRL_ENABLE; tegra_sor_writel(sor, value, SOR_HDMI_AVI_INFOFRAME_CTRL); - err = drm_hdmi_avi_infoframe_from_display_mode(&frame, mode); + err = drm_hdmi_avi_infoframe_from_display_mode(&frame, mode, false); if (err < 0) { dev_err(sor->dev, "failed to setup AVI infoframe: %d\n", err); return err; |