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drm/radeon: setup quantization_range in AVI infoframe 

If the display supports selectable range, set the range
based on what the user has selected for output csc.

bug:
https://bugs.freedesktop.org/show_bug.cgi?id=83226

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2015-02-23 17:14:47 -05:00
parent 643b1f5629
commit a1dcc2778b
1 changed files with 24 additions and 0 deletions
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24
drivers/gpu/drm/radeon/radeon_audio.c
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@ -520,16 +520,40 @@ static int radeon_audio_set_avi_packet(struct drm_encoder *encoder,
struct radeon_device *rdev = encoder->dev->dev_private;
struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
struct drm_connector *connector;
struct radeon_connector *radeon_connector = NULL;
u8 buffer[HDMI_INFOFRAME_HEADER_SIZE + HDMI_AVI_INFOFRAME_SIZE];
struct hdmi_avi_infoframe frame;
int err;
list_for_each_entry(connector,
&encoder->dev->mode_config.connector_list, head) {
if (connector->encoder == encoder) {
radeon_connector = to_radeon_connector(connector);
break;
}
}
if (!radeon_connector) {
DRM_ERROR("Couldn't find encoder's connector\n");
return -ENOENT;
}
err = drm_hdmi_avi_infoframe_from_display_mode(&frame, mode);
if (err < 0) {
DRM_ERROR("failed to setup AVI infoframe: %d\n", err);
return err;
}
if (drm_rgb_quant_range_selectable(radeon_connector_edid(connector))) {
if (radeon_encoder->output_csc == RADEON_OUTPUT_CSC_TVRGB)
frame.quantization_range = HDMI_QUANTIZATION_RANGE_LIMITED;
else
frame.quantization_range = HDMI_QUANTIZATION_RANGE_FULL;
} else {
frame.quantization_range = HDMI_QUANTIZATION_RANGE_DEFAULT;
}
err = hdmi_avi_infoframe_pack(&frame, buffer, sizeof(buffer));
if (err < 0) {
DRM_ERROR("failed to pack AVI infoframe: %d\n", err);