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Commit ee0fec31 authored by Alex Deucher's avatar Alex Deucher
Browse files

drm/radeon: use hw generated CTS/N values for audio 

Use the hw generated values rather than calculating
them in the driver.  There may be some older r6xx
asics where this doesn't work correctly.  This remains
to be seen.

See bug:
https://bugs.freedesktop.org/show_bug.cgi?id=69675



Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent e7d12c2f

drivers/gpu/drm/radeon/evergreen_hdmi.c

+1 −2
Original line number Diff line number Diff line
@@ -288,8 +288,7 @@ void evergreen_hdmi_setmode(struct drm_encoder *encoder, struct drm_display_mode 
	/* fglrx clears sth in AFMT_AUDIO_PACKET_CONTROL2 here */



	WREG32(HDMI_ACR_PACKET_CONTROL + offset,

	       HDMI_ACR_AUTO_SEND | /* allow hw to sent ACR packets when required */

	       HDMI_ACR_SOURCE); /* select SW CTS value */

	       HDMI_ACR_AUTO_SEND); /* allow hw to sent ACR packets when required */



	evergreen_hdmi_update_ACR(encoder, mode->clock);

drivers/gpu/drm/radeon/r600_hdmi.c

+1 −2
Original line number Diff line number Diff line
@@ -451,8 +451,7 @@ void r600_hdmi_setmode(struct drm_encoder *encoder, struct drm_display_mode *mod 
	}



	WREG32(HDMI0_ACR_PACKET_CONTROL + offset,

	       HDMI0_ACR_AUTO_SEND | /* allow hw to sent ACR packets when required */

	       HDMI0_ACR_SOURCE); /* select SW CTS value */

	       HDMI0_ACR_AUTO_SEND); /* allow hw to sent ACR packets when required */



	WREG32(HDMI0_VBI_PACKET_CONTROL + offset,

	       HDMI0_NULL_SEND | /* send null packets when required */