From 1deb6bd5a58755f4cc33a42bb3490104f9a7bdb6 Mon Sep 17 00:00:00 2001 From: Stefan Saraev Date: Tue, 22 Oct 2013 21:45:14 +0300 Subject: [PATCH] linux: drm/radeon: use sw CTS/N values for audio on DCE4+ thanks @fritsch --- ...se-sw-CTS-N-values-for-audio-on-DCE4.patch | 32 +++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 packages/linux/patches/3.11.6/linux-999.03-drm-radeon-use-sw-CTS-N-values-for-audio-on-DCE4.patch diff --git a/packages/linux/patches/3.11.6/linux-999.03-drm-radeon-use-sw-CTS-N-values-for-audio-on-DCE4.patch b/packages/linux/patches/3.11.6/linux-999.03-drm-radeon-use-sw-CTS-N-values-for-audio-on-DCE4.patch new file mode 100644 index 0000000000..84baa8084e --- /dev/null +++ b/packages/linux/patches/3.11.6/linux-999.03-drm-radeon-use-sw-CTS-N-values-for-audio-on-DCE4.patch @@ -0,0 +1,32 @@ +From 311ae5e07738b76bf8ec9667840caaad0657ded6 Mon Sep 17 00:00:00 2001 +From: Alex Deucher +Date: Tue, 22 Oct 2013 10:46:59 -0400 +Subject: [PATCH] drm/radeon: use sw CTS/N values for audio on DCE4+ + +Use the driver calculated CTS and N values rather than +having hardware generate them. This allows us to use +the modeline pixel clock rather than the actual pll clock +when setting up the dto for audio. Fixes problems with +audio playback rate on certain asics if the pll clock +does not match the pixel clock exactly. + +Signed-off-by: Alex Deucher +Cc: stable@vger.kernel.org +--- + drivers/gpu/drm/radeon/evergreen_hdmi.c | 1 + + 1 file changed, 1 insertion(+) + +diff --git a/drivers/gpu/drm/radeon/evergreen_hdmi.c b/drivers/gpu/drm/radeon/evergreen_hdmi.c +index fe1de85..57fcc4b 100644 +--- a/drivers/gpu/drm/radeon/evergreen_hdmi.c ++++ b/drivers/gpu/drm/radeon/evergreen_hdmi.c +@@ -291,6 +291,7 @@ 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_SOURCE | /* select SW CTS value */ + HDMI_ACR_AUTO_SEND); /* allow hw to sent ACR packets when required */ + + evergreen_hdmi_update_ACR(encoder, mode->clock); +-- +1.8.3.1