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Commit a1dcc277 authored by Alex Deucher's avatar Alex Deucher
Browse files

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: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 643b1f56

drivers/gpu/drm/radeon/radeon_audio.c

+24 −0
Original line number Diff line number Diff line
@@ -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);