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| author | Alex Deucher <alexander.deucher@amd.com> | 2014-05-29 03:14:36 +0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2014-06-03 02:37:33 +0400 |
| commit | 7b555e068de613b52b068adf3c74f0c774c28365 (patch) | |
| tree | 49b964b6f96a47c8c6a6eba2eb3beb3bd76d66eb /drivers/gpu/drm/radeon/evergreen_hdmi.c | |
| parent | f71d9ebd92437faf8dd1ada32ab5ddac4c6e5e67 (diff) | |
| download | linux-7b555e068de613b52b068adf3c74f0c774c28365.tar.xz | |
drm/radeon: Setup HDMI_CONTROL for hdmi deep color gcp's (v2)
Program HDMI_CONTROL to send general control packets
for hdmi deep color mode signalling at every video
frame if bpc > 8.
This is only supported on evergreen / DCE-4 and later.
v2: rebase
Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/evergreen_hdmi.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/evergreen_hdmi.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/evergreen_hdmi.c b/drivers/gpu/drm/radeon/evergreen_hdmi.c index 8579721e8971..b760ef52fdcd 100644 --- a/drivers/gpu/drm/radeon/evergreen_hdmi.c +++ b/drivers/gpu/drm/radeon/evergreen_hdmi.c @@ -298,6 +298,7 @@ void evergreen_hdmi_setmode(struct drm_encoder *encoder, struct drm_display_mode struct hdmi_avi_infoframe frame; uint32_t offset; ssize_t err; + uint32_t val; int bpc = 8; if (!dig || !dig->afmt) @@ -330,6 +331,35 @@ void evergreen_hdmi_setmode(struct drm_encoder *encoder, struct drm_display_mode WREG32(AFMT_AUDIO_CRC_CONTROL + offset, 0x1000); + val = RREG32(HDMI_CONTROL + offset); + val &= ~HDMI_DEEP_COLOR_ENABLE; + val &= ~HDMI_DEEP_COLOR_DEPTH_MASK; + + switch (bpc) { + case 0: + case 6: + case 8: + case 16: + default: + DRM_DEBUG("%s: Disabling hdmi deep color for %d bpc.\n", + drm_get_connector_name(connector), bpc); + break; + case 10: + val |= HDMI_DEEP_COLOR_ENABLE; + val |= HDMI_DEEP_COLOR_DEPTH(HDMI_30BIT_DEEP_COLOR); + DRM_DEBUG("%s: Enabling hdmi deep color 30 for 10 bpc.\n", + drm_get_connector_name(connector)); + break; + case 12: + val |= HDMI_DEEP_COLOR_ENABLE; + val |= HDMI_DEEP_COLOR_DEPTH(HDMI_36BIT_DEEP_COLOR); + DRM_DEBUG("%s: Enabling hdmi deep color 36 for 12 bpc.\n", + drm_get_connector_name(connector)); + break; + } + + WREG32(HDMI_CONTROL + offset, val); + WREG32(HDMI_VBI_PACKET_CONTROL + offset, HDMI_NULL_SEND | /* send null packets when required */ HDMI_GC_SEND | /* send general control packets */ |