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drm/radeon: rework audio detect (v4)

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1. Always assign audio function pointers even if the display does
not support audio.  We need to properly disable the audio stream
when when using a non-audio capable monitor.  Fixes purple line
on some hdmi monitors.

2. Check if a pin is in use by another encoder before disabling
it.

v2: make sure we've fetched the edid before checking audio and
    look up the encoder before calling audio_detect since
    connector->encoder may not be assigned yet.  Separate
    pin and afmt.  They are allocated at different times and
    have no dependency on eachother.
v3: fix connector fetching in encoder functions
v4: fix missed dig->pin check in dce6_afmt_write_latency_fields

bugs:
https://bugzilla.kernel.org/show_bug.cgi?id=93701
https://bugzilla.redhat.com/show_bug.cgi?id=1236337
https://bugs.freedesktop.org/show_bug.cgi?id=91041

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
This commit is contained in:
Alex Deucher
2015-07-23 10:01:09 -04:00
parent b3fcf36aee
commit d0ea397e22
5 changed files with 106 additions and 124 deletions
Download Patch File Download Diff File Expand all files Collapse all files

145
drivers/gpu/drm/radeon/radeon_audio.c
View File

@@ -245,6 +245,28 @@ static struct radeon_audio_funcs dce6_dp_funcs = {
static void radeon_audio_enable(struct radeon_device *rdev,
struct r600_audio_pin *pin, u8 enable_mask)
{
struct drm_encoder *encoder;
struct radeon_encoder *radeon_encoder;
struct radeon_encoder_atom_dig *dig;
int pin_count = 0;
if (!pin)
return;
if (rdev->mode_info.mode_config_initialized) {
list_for_each_entry(encoder, &rdev->ddev->mode_config.encoder_list, head) {
if (radeon_encoder_is_digital(encoder)) {
radeon_encoder = to_radeon_encoder(encoder);
dig = radeon_encoder->enc_priv;
if (dig->pin == pin)
pin_count++;
}
}
if ((pin_count > 1) && (enable_mask == 0))
return;
}
if (rdev->audio.funcs->enable)
rdev->audio.funcs->enable(rdev, pin, enable_mask);
}
@@ -336,24 +358,13 @@ void radeon_audio_endpoint_wreg(struct radeon_device *rdev, u32 offset,
static void radeon_audio_write_sad_regs(struct drm_encoder *encoder)
{
struct radeon_encoder *radeon_encoder;
struct drm_connector *connector;
struct radeon_connector *radeon_connector = NULL;
struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
struct cea_sad *sads;
int sad_count;
list_for_each_entry(connector,
&encoder->dev->mode_config.connector_list, head) {
if (connector->encoder == encoder) {
radeon_connector = to_radeon_connector(connector);
break;
}
}
if (!radeon_connector) {
DRM_ERROR("Couldn't find encoder's connector\n");
if (!connector)
return;
}
sad_count = drm_edid_to_sad(radeon_connector_edid(connector), &sads);
if (sad_count <= 0) {
@@ -362,8 +373,6 @@ static void radeon_audio_write_sad_regs(struct drm_encoder *encoder)
}
BUG_ON(!sads);
radeon_encoder = to_radeon_encoder(encoder);
if (radeon_encoder->audio && radeon_encoder->audio->write_sad_regs)
radeon_encoder->audio->write_sad_regs(encoder, sads, sad_count);
@@ -372,27 +381,16 @@ static void radeon_audio_write_sad_regs(struct drm_encoder *encoder)
static void radeon_audio_write_speaker_allocation(struct drm_encoder *encoder)
{
struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
struct drm_connector *connector;
struct radeon_connector *radeon_connector = NULL;
u8 *sadb = NULL;
int sad_count;
list_for_each_entry(connector,
&encoder->dev->mode_config.connector_list, head) {
if (connector->encoder == encoder) {
radeon_connector = to_radeon_connector(connector);
break;
}
}
if (!radeon_connector) {
DRM_ERROR("Couldn't find encoder's connector\n");
if (!connector)
return;
}
sad_count = drm_edid_to_speaker_allocation(
radeon_connector_edid(connector), &sadb);
sad_count = drm_edid_to_speaker_allocation(radeon_connector_edid(connector),
&sadb);
if (sad_count < 0) {
DRM_DEBUG("Couldn't read Speaker Allocation Data Block: %d\n",
sad_count);
@@ -406,26 +404,13 @@ static void radeon_audio_write_speaker_allocation(struct drm_encoder *encoder)
}
static void radeon_audio_write_latency_fields(struct drm_encoder *encoder,
struct drm_display_mode *mode)
struct drm_display_mode *mode)
{
struct radeon_encoder *radeon_encoder;
struct drm_connector *connector;
struct radeon_connector *radeon_connector = 0;
struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
list_for_each_entry(connector,
&encoder->dev->mode_config.connector_list, head) {
if (connector->encoder == encoder) {
radeon_connector = to_radeon_connector(connector);
break;
}
}
if (!radeon_connector) {
DRM_ERROR("Couldn't find encoder's connector\n");
if (!connector)
return;
}
radeon_encoder = to_radeon_encoder(encoder);
if (radeon_encoder->audio && radeon_encoder->audio->write_latency_fields)
radeon_encoder->audio->write_latency_fields(encoder, connector, mode);
@@ -451,29 +436,23 @@ static void radeon_audio_select_pin(struct drm_encoder *encoder)
}
void radeon_audio_detect(struct drm_connector *connector,
struct drm_encoder *encoder,
enum drm_connector_status status)
{
struct radeon_device *rdev;
struct radeon_encoder *radeon_encoder;
struct drm_device *dev = connector->dev;
struct radeon_device *rdev = dev->dev_private;
struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
struct radeon_encoder_atom_dig *dig;
if (!connector || !connector->encoder)
return;
rdev = connector->encoder->dev->dev_private;
if (!radeon_audio_chipset_supported(rdev))
return;
radeon_encoder = to_radeon_encoder(connector->encoder);
if (!radeon_encoder_is_digital(encoder))
return;
dig = radeon_encoder->enc_priv;
if (status == connector_status_connected) {
if (!drm_detect_monitor_audio(radeon_connector_edid(connector))) {
radeon_encoder->audio = NULL;
return;
}
if (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort) {
struct radeon_connector *radeon_connector = to_radeon_connector(connector);
@@ -486,11 +465,17 @@ void radeon_audio_detect(struct drm_connector *connector,
radeon_encoder->audio = rdev->audio.hdmi_funcs;
}
dig->afmt->pin = radeon_audio_get_pin(connector->encoder);
radeon_audio_enable(rdev, dig->afmt->pin, 0xf);
if (drm_detect_monitor_audio(radeon_connector_edid(connector))) {
if (!dig->pin)
dig->pin = radeon_audio_get_pin(encoder);
radeon_audio_enable(rdev, dig->pin, 0xf);
} else {
radeon_audio_enable(rdev, dig->pin, 0);
dig->pin = NULL;
}
} else {
radeon_audio_enable(rdev, dig->afmt->pin, 0);
dig->afmt->pin = NULL;
radeon_audio_enable(rdev, dig->pin, 0);
dig->pin = NULL;
}
}
@@ -518,29 +503,18 @@ static void radeon_audio_set_dto(struct drm_encoder *encoder, unsigned int clock
}
static int radeon_audio_set_avi_packet(struct drm_encoder *encoder,
struct drm_display_mode *mode)
struct drm_display_mode *mode)
{
struct radeon_device *rdev = encoder->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;
struct radeon_connector *radeon_connector = NULL;
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;
int err;
list_for_each_entry(connector,
&encoder->dev->mode_config.connector_list, head) {
if (connector->encoder == encoder) {
radeon_connector = to_radeon_connector(connector);
break;
}
}
if (!radeon_connector) {
DRM_ERROR("Couldn't find encoder's connector\n");
return -ENOENT;
}
if (!connector)
return -EINVAL;
err = drm_hdmi_avi_infoframe_from_display_mode(&frame, mode);
if (err < 0) {
@@ -563,8 +537,8 @@ static int radeon_audio_set_avi_packet(struct drm_encoder *encoder,
return err;
}
if (dig && dig->afmt &&
radeon_encoder->audio && radeon_encoder->audio->set_avi_packet)
if (dig && dig->afmt && radeon_encoder->audio &&
radeon_encoder->audio->set_avi_packet)
radeon_encoder->audio->set_avi_packet(rdev, dig->afmt->offset,
buffer, sizeof(buffer));
@@ -745,7 +719,7 @@ static void radeon_audio_hdmi_mode_set(struct drm_encoder *encoder,
}
static void radeon_audio_dp_mode_set(struct drm_encoder *encoder,
struct drm_display_mode *mode)
struct drm_display_mode *mode)
{
struct drm_device *dev = encoder->dev;
struct radeon_device *rdev = dev->dev_private;
@@ -756,6 +730,9 @@ static void radeon_audio_dp_mode_set(struct drm_encoder *encoder,
struct radeon_connector_atom_dig *dig_connector =
radeon_connector->con_priv;
if (!connector)
return;
if (!dig || !dig->afmt)
return;
@@ -774,7 +751,7 @@ static void radeon_audio_dp_mode_set(struct drm_encoder *encoder,
}
void radeon_audio_mode_set(struct drm_encoder *encoder,
struct drm_display_mode *mode)
struct drm_display_mode *mode)
{
struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);