Commit 8ee491b4 authored Jan 08, 2019 by Ville Syrjälä

drm/radeon: Use drm_hdmi_avi_infoframe_quant_range()



Fill out the AVI infoframe quantization range bits using
drm_hdmi_avi_infoframe_quant_range() instead of hand rolling it.

This changes the behaviour slightly as
drm_hdmi_avi_infoframe_quant_range() will set a non-zero Q bit
even when QS==0 iff the Q bit matched the default quantization
range for the given mode. This matches the recommendation in
HDMI 2.0 and is allowed even before that.

Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: "David (ChunMing) Zhou" <David1.Zhou@amd.com>
Cc: amd-gfx@lists.freedesktop.org
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190108172828.15184-3-ville.syrjala@linux.intel.com

parent c3735f5c

drivers/gpu/drm/radeon/radeon_audio.c

+5 −8

Original line number	Diff line number	Diff line
		@@ -523,14 +523,11 @@ static int radeon_audio_set_avi_packet(struct drm_encoder *encoder,
		}

		if (radeon_encoder->output_csc != RADEON_OUTPUT_CSC_BYPASS) {
		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;
		}
		drm_hdmi_avi_infoframe_quant_range(&frame, connector, mode,
		radeon_encoder->output_csc == RADEON_OUTPUT_CSC_TVRGB ?
		HDMI_QUANTIZATION_RANGE_LIMITED :
		HDMI_QUANTIZATION_RANGE_FULL,
		drm_rgb_quant_range_selectable(radeon_connector_edid(connector)));
		}

		err = hdmi_avi_infoframe_pack(&frame, buffer, sizeof(buffer));

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