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: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/radeon/evergreen_hdmi.c b/drivers/gpu/drm/radeon/evergreen_hdmi.c
index f71ce390aebe581dd08998ce29d98e4b1058155c..f815c20640bd45e28c9d27fa86897a99af5d40d6 100644 (file)
--- a/drivers/gpu/drm/radeon/evergreen_hdmi.c
+++ b/drivers/gpu/drm/radeon/evergreen_hdmi.c
@@ -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);
 

diff --git a/drivers/gpu/drm/radeon/r600_hdmi.c b/drivers/gpu/drm/radeon/r600_hdmi.c
index 567703fdfbf1ff5fc8480167b4456f5e9e617f04..e2ae1c237fb4bb1d7a68cbae99ce061df798afc7 100644 (file)
--- a/drivers/gpu/drm/radeon/r600_hdmi.c
+++ b/drivers/gpu/drm/radeon/r600_hdmi.c
@@ -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 */