drm/radeon: use hw cts/n values for deep color (79766915) · Commits · 戴 / test

drivers/gpu/drm/radeon/evergreen_hdmi.c

+15 −3

Original line number	Diff line number	Diff line
		@@ -293,10 +293,12 @@ void evergreen_hdmi_setmode(struct drm_encoder *encoder, struct drm_display_mode
		struct radeon_device *rdev = 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 = radeon_get_connector_for_encoder(encoder);
		u8 buffer[HDMI_INFOFRAME_HEADER_SIZE + HDMI_AVI_INFOFRAME_SIZE];
		struct hdmi_avi_infoframe frame;
		uint32_t offset;
		ssize_t err;
		int bpc = 8;

		if (!dig \|\| !dig->afmt)
		return;
		@@ -306,6 +308,12 @@ void evergreen_hdmi_setmode(struct drm_encoder *encoder, struct drm_display_mode
		return;
		offset = dig->afmt->offset;

		/* hdmi deep color mode general control packets setup, if bpc > 8 */
		if (encoder->crtc) {
		struct radeon_crtc *radeon_crtc = to_radeon_crtc(encoder->crtc);
		bpc = radeon_crtc->bpc;
		}

		/* disable audio prior to setting up hw */
		if (ASIC_IS_DCE6(rdev)) {
		dig->afmt->pin = dce6_audio_get_pin(rdev);
		@@ -348,6 +356,10 @@ void evergreen_hdmi_setmode(struct drm_encoder *encoder, struct drm_display_mode

		/* fglrx clears sth in AFMT_AUDIO_PACKET_CONTROL2 here */

		if (bpc > 8)
		WREG32(HDMI_ACR_PACKET_CONTROL + offset,
		HDMI_ACR_AUTO_SEND); /* allow hw to sent ACR packets when required */
		else
		WREG32(HDMI_ACR_PACKET_CONTROL + offset,
		HDMI_ACR_SOURCE \| /* select SW CTS value */
		HDMI_ACR_AUTO_SEND); /* allow hw to sent ACR packets when required */