Patch "drm/radeon: only mark audio as connected if the monitor supports it (v3)" has been added to the 4.0-stable tree

[<gregkh@linuxfoundation.org>]

This is a note to let you know that I've just added the patch titled

    drm/radeon: only mark audio as connected if the monitor supports it (v3)

to the 4.0-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     drm-radeon-only-mark-audio-as-connected-if-the-monitor-supports-it-v3.patch
and it can be found in the queue-4.0 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 0f55db36d49d45b80eff0c0a2a498766016f458b Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Tue, 7 Apr 2015 09:52:42 -0400
Subject: drm/radeon: only mark audio as connected if the monitor supports it (v3)

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

commit 0f55db36d49d45b80eff0c0a2a498766016f458b upstream.

Otherwise the driver may try and send audio which may confuse the
monitor.

v2: set pin to NULL if no audio
v3: avoid crash with analog encoders

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/gpu/drm/radeon/radeon_audio.c      |   27 +++++++++++++++------------
 drivers/gpu/drm/radeon/radeon_connectors.c |    8 ++++++--
 2 files changed, 21 insertions(+), 14 deletions(-)

--- a/drivers/gpu/drm/radeon/radeon_audio.c
+++ b/drivers/gpu/drm/radeon/radeon_audio.c
@@ -460,30 +460,33 @@ void radeon_audio_detect(struct drm_conn
 	if (!connector || !connector->encoder)
 		return;
 
+	if (!radeon_encoder_is_digital(connector->encoder))
+		return;
+
 	rdev = connector->encoder->dev->dev_private;
 	radeon_encoder = to_radeon_encoder(connector->encoder);
 	dig = radeon_encoder->enc_priv;
 
-	if (status == connector_status_connected) {
-		struct radeon_connector *radeon_connector;
-		int sink_type;
-
-		if (!drm_detect_monitor_audio(radeon_connector_edid(connector))) {
-			radeon_encoder->audio = NULL;
-			return;
-		}
+	if (!dig->afmt)
+		return;
 
-		radeon_connector = to_radeon_connector(connector);
-		sink_type = radeon_dp_getsinktype(radeon_connector);
+	if (status == connector_status_connected) {
+		struct radeon_connector *radeon_connector = to_radeon_connector(connector);
 
 		if (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort &&
-			sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT)
+		    radeon_dp_getsinktype(radeon_connector) ==
+		    CONNECTOR_OBJECT_ID_DISPLAYPORT)
 			radeon_encoder->audio = rdev->audio.dp_funcs;
 		else
 			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))) {
+			radeon_audio_enable(rdev, dig->afmt->pin, 0xf);
+		} else {
+			radeon_audio_enable(rdev, dig->afmt->pin, 0);
+			dig->afmt->pin = NULL;
+		}
 	} else {
 		radeon_audio_enable(rdev, dig->afmt->pin, 0);
 		dig->afmt->pin = NULL;
--- a/drivers/gpu/drm/radeon/radeon_connectors.c
+++ b/drivers/gpu/drm/radeon/radeon_connectors.c
@@ -1333,8 +1333,10 @@ out:
 	/* updated in get modes as well since we need to know if it's analog or digital */
 	radeon_connector_update_scratch_regs(connector, ret);
 
-	if (radeon_audio != 0)
+	if (radeon_audio != 0) {
+		radeon_connector_get_edid(connector);
 		radeon_audio_detect(connector, ret);
+	}
 
 exit:
 	pm_runtime_mark_last_busy(connector->dev->dev);
@@ -1659,8 +1661,10 @@ radeon_dp_detect(struct drm_connector *c
 
 	radeon_connector_update_scratch_regs(connector, ret);
 
-	if (radeon_audio != 0)
+	if (radeon_audio != 0) {
+		radeon_connector_get_edid(connector);
 		radeon_audio_detect(connector, ret);
+	}
 
 out:
 	pm_runtime_mark_last_busy(connector->dev->dev);


Patches currently in stable-queue which might be from alexander.deucher@amd.com are

queue-4.0/drm-radeon-fix-lockup-when-bos-aren-t-part-of-the-vm-on-release.patch
queue-4.0/drm-radeon-reset-bos-address-after-clearing-it.patch
queue-4.0/drm-radeon-adjust-pll-when-audio-is-not-enabled.patch
queue-4.0/drm-radeon-add-si-dpm-quirk-for-sapphire-r9-270-dual-x-2g-gddr5.patch
queue-4.0/drm-radeon-only-enable-audio-streams-if-the-monitor-supports-it.patch
queue-4.0/drm-radeon-only-mark-audio-as-connected-if-the-monitor-supports-it-v3.patch
queue-4.0/drm-radeon-drop-dce6_dp_enable.patch
queue-4.0/drm-radeon-audio-don-t-enable-packets-until-the-end.patch
queue-4.0/drm-radeon-check-new-address-before-removing-old-one.patch
queue-4.0/drm-radeon-fix-ordering-of-avi-packet-setup.patch
queue-4.0/drm-radeon-use-drm_calloc_ab-for-cs-relocs.patch