From 38aef1549b18539eaecd804383a6ccb6588a9ce1 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Tue, 7 Apr 2015 10:20:49 -0400
Subject: [PATCH] drm/radeon: only enable audio streams if the monitor supports
it
Selectively enable which packets we send based on monitor caps.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
---
drivers/gpu/drm/radeon/atombios_encoders.c | 6 ++---
drivers/gpu/drm/radeon/evergreen_hdmi.c | 27 +++++++++++++++-------
2 files changed, 21 insertions(+), 12 deletions(-)
diff --git a/drivers/gpu/drm/radeon/atombios_encoders.c b/drivers/gpu/drm/radeon/atombios_encoders.c
index f57c1ab617bc..dd39f434b4a7 100644
--- a/drivers/gpu/drm/radeon/atombios_encoders.c
+++ b/drivers/gpu/drm/radeon/atombios_encoders.c
@@ -1761,17 +1761,15 @@ radeon_atom_encoder_dpms(struct drm_encoder *encoder, int mode)
struct drm_device *dev = encoder->dev;
struct radeon_device *rdev = dev->dev_private;
struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
- struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
int encoder_mode = atombios_get_encoder_mode(encoder);
DRM_DEBUG_KMS("encoder dpms %d to mode %d, devices %08x, active_devices %08x\n",
radeon_encoder->encoder_id, mode, radeon_encoder->devices,
radeon_encoder->active_device);
- if (connector && (radeon_audio != 0) &&
+ if ((radeon_audio != 0) &&
((encoder_mode == ATOM_ENCODER_MODE_HDMI) ||
- (ENCODER_MODE_IS_DP(encoder_mode) &&
- drm_detect_monitor_audio(radeon_connector_edid(connector)))))
+ ENCODER_MODE_IS_DP(encoder_mode)))
radeon_audio_dpms(encoder, mode);
switch (radeon_encoder->encoder_id) {
diff --git a/drivers/gpu/drm/radeon/evergreen_hdmi.c b/drivers/gpu/drm/radeon/evergreen_hdmi.c
index 9e1cd0cfcd55..0926739c9fa7 100644
--- a/drivers/gpu/drm/radeon/evergreen_hdmi.c
+++ b/drivers/gpu/drm/radeon/evergreen_hdmi.c
@@ -398,13 +398,23 @@ void evergreen_hdmi_enable(struct drm_encoder *encoder, bool enable)
return;
if (enable) {
- WREG32(HDMI_INFOFRAME_CONTROL0 + dig->afmt->offset,
- HDMI_AVI_INFO_SEND | /* enable AVI info frames */
- HDMI_AVI_INFO_CONT | /* required for audio info values to be updated */
- HDMI_AUDIO_INFO_SEND | /* enable audio info frames (frames won't be set until audio is enabled) */
- HDMI_AUDIO_INFO_CONT); /* required for audio info values to be updated */
- WREG32_OR(AFMT_AUDIO_PACKET_CONTROL + dig->afmt->offset,
- AFMT_AUDIO_SAMPLE_SEND);
+ struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
+
+ if (drm_detect_monitor_audio(radeon_connector_edid(connector))) {
+ WREG32(HDMI_INFOFRAME_CONTROL0 + dig->afmt->offset,
+ HDMI_AVI_INFO_SEND | /* enable AVI info frames */
+ HDMI_AVI_INFO_CONT | /* required for audio info values to be updated */
+ HDMI_AUDIO_INFO_SEND | /* enable audio info frames (frames won't be set until audio is enabled) */
+ HDMI_AUDIO_INFO_CONT); /* required for audio info values to be updated */
+ WREG32_OR(AFMT_AUDIO_PACKET_CONTROL + dig->afmt->offset,
+ AFMT_AUDIO_SAMPLE_SEND);
+ } else {
+ WREG32(HDMI_INFOFRAME_CONTROL0 + dig->afmt->offset,
+ HDMI_AVI_INFO_SEND | /* enable AVI info frames */
+ HDMI_AVI_INFO_CONT); /* required for audio info values to be updated */
+ WREG32_AND(AFMT_AUDIO_PACKET_CONTROL + dig->afmt->offset,
+ ~AFMT_AUDIO_SAMPLE_SEND);
+ }
} else {
WREG32_AND(AFMT_AUDIO_PACKET_CONTROL + dig->afmt->offset,
~AFMT_AUDIO_SAMPLE_SEND);
@@ -423,11 +433,12 @@ void evergreen_dp_enable(struct drm_encoder *encoder, bool enable)
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);
if (!dig || !dig->afmt)
return;
- if (enable) {
+ if (enable && drm_detect_monitor_audio(radeon_connector_edid(connector))) {
struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
struct radeon_connector *radeon_connector = to_radeon_connector(connector);
struct radeon_connector_atom_dig *dig_connector;
--
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