[PATCH] drm/radeon: make dpcd parameters const

[PATCH] drm/radeon: make dpcd parameters const

[Alex Deucher]

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
 drivers/gpu/drm/radeon/atombios_dp.c | 8 ++++----
 drivers/gpu/drm/radeon/radeon_mode.h | 2 +-
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/radeon/atombios_dp.c b/drivers/gpu/drm/radeon/atombios_dp.c
index 3e3290c..ed173d3 100644
--- a/drivers/gpu/drm/radeon/atombios_dp.c
+++ b/drivers/gpu/drm/radeon/atombios_dp.c
@@ -253,7 +253,7 @@ void radeon_dp_aux_init(struct radeon_connector *radeon_connector)
 #define DP_VOLTAGE_MAX         DP_TRAIN_VOLTAGE_SWING_LEVEL_3
 #define DP_PRE_EMPHASIS_MAX    DP_TRAIN_PRE_EMPH_LEVEL_3
 
-static void dp_get_adjust_train(u8 link_status[DP_LINK_STATUS_SIZE],
+static void dp_get_adjust_train(const u8 link_status[DP_LINK_STATUS_SIZE],
 				int lane_count,
 				u8 train_set[4])
 {
@@ -311,7 +311,7 @@ static int dp_get_max_dp_pix_clock(int link_rate,
 /***** radeon specific DP functions *****/
 
 int radeon_dp_get_max_link_rate(struct drm_connector *connector,
-				u8 dpcd[DP_DPCD_SIZE])
+				const u8 dpcd[DP_DPCD_SIZE])
 {
 	int max_link_rate;
 
@@ -328,7 +328,7 @@ int radeon_dp_get_max_link_rate(struct drm_connector *connector,
  * if the max lane# < low rate lane# then use max lane# instead.
  */
 static int radeon_dp_get_dp_lane_number(struct drm_connector *connector,
-					u8 dpcd[DP_DPCD_SIZE],
+					const u8 dpcd[DP_DPCD_SIZE],
 					int pix_clock)
 {
 	int bpp = convert_bpc_to_bpp(radeon_get_monitor_bpc(connector));
@@ -347,7 +347,7 @@ static int radeon_dp_get_dp_lane_number(struct drm_connector *connector,
 }
 
 static int radeon_dp_get_dp_link_clock(struct drm_connector *connector,
-				       u8 dpcd[DP_DPCD_SIZE],
+				       const u8 dpcd[DP_DPCD_SIZE],
 				       int pix_clock)
 {
 	int bpp = convert_bpc_to_bpp(radeon_get_monitor_bpc(connector));
diff --git a/drivers/gpu/drm/radeon/radeon_mode.h b/drivers/gpu/drm/radeon/radeon_mode.h
index fa91a17..6de5459 100644
--- a/drivers/gpu/drm/radeon/radeon_mode.h
+++ b/drivers/gpu/drm/radeon/radeon_mode.h
@@ -754,7 +754,7 @@ extern bool radeon_dp_getdpcd(struct radeon_connector *radeon_connector);
 extern int radeon_dp_get_panel_mode(struct drm_encoder *encoder,
 				    struct drm_connector *connector);
 int radeon_dp_get_max_link_rate(struct drm_connector *connector,
-				u8 *dpcd);
+				const u8 *dpcd);
 extern void radeon_dp_set_rx_power_state(struct drm_connector *connector,
 					 u8 power_state);
 extern void radeon_dp_aux_init(struct radeon_connector *radeon_connector);
-- 
1.8.3.1

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[PATCH] drm/radeon: retry dcpd fetch

[Alex Deucher]

Retry the dpcd fetch several times.  Some eDP panels
fail several times before the fetch is successful.

bug:
https://bugs.freedesktop.org/show_bug.cgi?id=73530

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
---
 drivers/gpu/drm/radeon/atombios_dp.c | 20 +++++++++++---------
 1 file changed, 11 insertions(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/radeon/atombios_dp.c b/drivers/gpu/drm/radeon/atombios_dp.c
index ed173d3..f81e0d7 100644
--- a/drivers/gpu/drm/radeon/atombios_dp.c
+++ b/drivers/gpu/drm/radeon/atombios_dp.c
@@ -421,19 +421,21 @@ bool radeon_dp_getdpcd(struct radeon_connector *radeon_connector)
 {
 	struct radeon_connector_atom_dig *dig_connector = radeon_connector->con_priv;
 	u8 msg[DP_DPCD_SIZE];
-	int ret;
+	int ret, i;
 
-	ret = drm_dp_dpcd_read(&radeon_connector->ddc_bus->aux, DP_DPCD_REV, msg,
-			       DP_DPCD_SIZE);
-	if (ret > 0) {
-		memcpy(dig_connector->dpcd, msg, DP_DPCD_SIZE);
+	for (i = 0; i < 7; i++) {
+		ret = drm_dp_dpcd_read(&radeon_connector->ddc_bus->aux, DP_DPCD_REV, msg,
+				       DP_DPCD_SIZE);
+		if (ret == DP_DPCD_SIZE) {
+			memcpy(dig_connector->dpcd, msg, DP_DPCD_SIZE);
 
-		DRM_DEBUG_KMS("DPCD: %*ph\n", (int)sizeof(dig_connector->dpcd),
-			      dig_connector->dpcd);
+			DRM_DEBUG_KMS("DPCD: %*ph\n", (int)sizeof(dig_connector->dpcd),
+				      dig_connector->dpcd);
 
-		radeon_dp_probe_oui(radeon_connector);
+			radeon_dp_probe_oui(radeon_connector);
 
-		return true;
+			return true;
+		}
 	}
 	dig_connector->dpcd[0] = 0;
 	return false;
-- 
1.8.3.1

[PATCH] drm/radeon: retry dcpd fetch

[Alex Deucher]

Retry the dpcd fetch several times.  Some eDP panels
fail several times before the fetch is successful.

bug:
https://bugs.freedesktop.org/show_bug.cgi?id=73530

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
---
 drivers/gpu/drm/radeon/atombios_dp.c | 20 +++++++++++---------
 1 file changed, 11 insertions(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/radeon/atombios_dp.c b/drivers/gpu/drm/radeon/atombios_dp.c
index ed173d3..f81e0d7 100644
--- a/drivers/gpu/drm/radeon/atombios_dp.c
+++ b/drivers/gpu/drm/radeon/atombios_dp.c
@@ -421,19 +421,21 @@ bool radeon_dp_getdpcd(struct radeon_connector *radeon_connector)
 {
 	struct radeon_connector_atom_dig *dig_connector = radeon_connector->con_priv;
 	u8 msg[DP_DPCD_SIZE];
-	int ret;
+	int ret, i;
 
-	ret = drm_dp_dpcd_read(&radeon_connector->ddc_bus->aux, DP_DPCD_REV, msg,
-			       DP_DPCD_SIZE);
-	if (ret > 0) {
-		memcpy(dig_connector->dpcd, msg, DP_DPCD_SIZE);
+	for (i = 0; i < 7; i++) {
+		ret = drm_dp_dpcd_read(&radeon_connector->ddc_bus->aux, DP_DPCD_REV, msg,
+				       DP_DPCD_SIZE);
+		if (ret == DP_DPCD_SIZE) {
+			memcpy(dig_connector->dpcd, msg, DP_DPCD_SIZE);
 
-		DRM_DEBUG_KMS("DPCD: %*ph\n", (int)sizeof(dig_connector->dpcd),
-			      dig_connector->dpcd);
+			DRM_DEBUG_KMS("DPCD: %*ph\n", (int)sizeof(dig_connector->dpcd),
+				      dig_connector->dpcd);
 
-		radeon_dp_probe_oui(radeon_connector);
+			radeon_dp_probe_oui(radeon_connector);
 
-		return true;
+			return true;
+		}
 	}
 	dig_connector->dpcd[0] = 0;
 	return false;
-- 
1.8.3.1

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[PATCH] drm/radeon: take the mode_config mutex when dealing with hpds

Since we are messing with state in the worker.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
---
 drivers/gpu/drm/radeon/radeon_irq_kms.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/radeon/radeon_irq_kms.c b/drivers/gpu/drm/radeon/radeon_irq_kms.c
index 7162c93..5b12c3f 100644
--- a/drivers/gpu/drm/radeon/radeon_irq_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_irq_kms.c
@@ -79,10 +79,12 @@ static void radeon_hotplug_work_func(struct work_struct *work)
 	struct drm_mode_config *mode_config = &dev->mode_config;
 	struct drm_connector *connector;
 
+	mutex_lock(&mode_config->mutex);
 	if (mode_config->num_connector) {
 		list_for_each_entry(connector, &mode_config->connector_list, head)
 			radeon_connector_hotplug(connector);
 	}
+	mutex_unlock(&mode_config->mutex);
 	/* Just fire off a uevent and let userspace tell us what to do */
 	drm_helper_hpd_irq_event(dev);
 }
@@ -96,10 +98,12 @@ static void radeon_dp_work_func(struct work_struct *work)
 	struct drm_connector *connector;
 
 	/* this should take a mutex */
+	mutex_lock(&mode_config->mutex);
 	if (mode_config->num_connector) {
 		list_for_each_entry(connector, &mode_config->connector_list, head)
 			radeon_connector_hotplug(connector);
 	}
+	mutex_unlock(&mode_config->mutex);
 }
 /**
  * radeon_driver_irq_preinstall_kms - drm irq preinstall callback
-- 
1.8.3.1

[PATCH] drm/radeon: take the mode_config mutex when dealing with hpds

[Alex Deucher]

Since we are messing with state in the worker.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
---
 drivers/gpu/drm/radeon/radeon_irq_kms.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/radeon/radeon_irq_kms.c b/drivers/gpu/drm/radeon/radeon_irq_kms.c
index 7162c93..5b12c3f 100644
--- a/drivers/gpu/drm/radeon/radeon_irq_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_irq_kms.c
@@ -79,10 +79,12 @@ static void radeon_hotplug_work_func(struct work_struct *work)
 	struct drm_mode_config *mode_config = &dev->mode_config;
 	struct drm_connector *connector;
 
+	mutex_lock(&mode_config->mutex);
 	if (mode_config->num_connector) {
 		list_for_each_entry(connector, &mode_config->connector_list, head)
 			radeon_connector_hotplug(connector);
 	}
+	mutex_unlock(&mode_config->mutex);
 	/* Just fire off a uevent and let userspace tell us what to do */
 	drm_helper_hpd_irq_event(dev);
 }
@@ -96,10 +98,12 @@ static void radeon_dp_work_func(struct work_struct *work)
 	struct drm_connector *connector;
 
 	/* this should take a mutex */
+	mutex_lock(&mode_config->mutex);
 	if (mode_config->num_connector) {
 		list_for_each_entry(connector, &mode_config->connector_list, head)
 			radeon_connector_hotplug(connector);
 	}
+	mutex_unlock(&mode_config->mutex);
 }
 /**
  * radeon_driver_irq_preinstall_kms - drm irq preinstall callback
-- 
1.8.3.1

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Re: [PATCH] drm/radeon: take the mode_config mutex when dealing with hpds

[Michel Dänzer]

On 19.05.2015 01:24, Alex Deucher wrote:
> 
> @@ -96,10 +98,12 @@ static void radeon_dp_work_func(struct work_struct *work)
>  	struct drm_connector *connector;
>  
>  	/* this should take a mutex */
> +	mutex_lock(&mode_config->mutex);

This comment can be removed?


-- 
Earthling Michel Dänzer               |               http://www.amd.com
Libre software enthusiast             |             Mesa and X developer
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Re: [PATCH] drm/radeon: take the mode_config mutex when dealing with hpds

[Dave Airlie]

On 19 May 2015 at 12:27, Michel Dänzer <michel@daenzer.net> wrote:
> On 19.05.2015 01:24, Alex Deucher wrote:
>>
>> @@ -96,10 +98,12 @@ static void radeon_dp_work_func(struct work_struct *work)
>>       struct drm_connector *connector;
>>
>>       /* this should take a mutex */
>> +     mutex_lock(&mode_config->mutex);
>
> This comment can be removed?

I have vague memories of not doing this, because bad things happened.

so keep an eye out for lockdep traces.

Dave.
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Re: [PATCH] drm/radeon: take the mode_config mutex when dealing with hpds

[Alex Deucher]

On Mon, May 18, 2015 at 11:24 PM, Dave Airlie <airlied@gmail.com> wrote:
> On 19 May 2015 at 12:27, Michel Dänzer <michel@daenzer.net> wrote:
>> On 19.05.2015 01:24, Alex Deucher wrote:
>>>
>>> @@ -96,10 +98,12 @@ static void radeon_dp_work_func(struct work_struct *work)
>>>       struct drm_connector *connector;
>>>
>>>       /* this should take a mutex */
>>> +     mutex_lock(&mode_config->mutex);
>>
>> This comment can be removed?
>
> I have vague memories of not doing this, because bad things happened.
>
> so keep an eye out for lockdep traces.

I tested the non-MST handling pretty extensively, but I admit I didn't
play with mst.  Might be better to split this into two patches.

Alex
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Re: [PATCH] drm/radeon: take the mode_config mutex when dealing with hpds

[Daniel Vetter]

On Mon, May 18, 2015 at 11:28:47PM -0400, Alex Deucher wrote:
> On Mon, May 18, 2015 at 11:24 PM, Dave Airlie <airlied@gmail.com> wrote:
> > On 19 May 2015 at 12:27, Michel Dänzer <michel@daenzer.net> wrote:
> >> On 19.05.2015 01:24, Alex Deucher wrote:
> >>>
> >>> @@ -96,10 +98,12 @@ static void radeon_dp_work_func(struct work_struct *work)
> >>>       struct drm_connector *connector;
> >>>
> >>>       /* this should take a mutex */
> >>> +     mutex_lock(&mode_config->mutex);
> >>
> >> This comment can be removed?
> >
> > I have vague memories of not doing this, because bad things happened.
> >
> > so keep an eye out for lockdep traces.
> 
> I tested the non-MST handling pretty extensively, but I admit I didn't
> play with mst.  Might be better to split this into two patches.

Registering a new connector also needs the dev->mode_config.mutex. If you
hold that while calling into mst hpd code you'll deadlock.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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[PATCH] drm/radeon: properly select encoder in radeon_audio_detect

[Alex Deucher]

Need to handle DVI where we way end up with an analog encoder
in some cases.

Reported-by: Julian Margetson <runaway@candw.ms>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
---
 drivers/gpu/drm/radeon/radeon_audio.c      | 18 ++++++++++--------
 drivers/gpu/drm/radeon/radeon_connectors.c |  2 +-
 2 files changed, 11 insertions(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_audio.c b/drivers/gpu/drm/radeon/radeon_audio.c
index dcb7796..31b60f6 100644
--- a/drivers/gpu/drm/radeon/radeon_audio.c
+++ b/drivers/gpu/drm/radeon/radeon_audio.c
@@ -453,22 +453,24 @@ void radeon_audio_enable(struct radeon_device *rdev,
 void radeon_audio_detect(struct drm_connector *connector,
 			 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_atom_dig *dig;
+	const struct drm_connector_helper_funcs *connector_funcs =
+		connector->helper_private;
+	struct drm_encoder *encoder = connector_funcs->best_encoder(connector);
+	struct radeon_encoder *radeon_encoder;
 
-	if (!connector || !connector->encoder)
+	if (!connector || !encoder)
 		return;
 
-	if (!radeon_encoder_is_digital(connector->encoder))
+	if (!radeon_encoder_is_digital(encoder))
 		return;
 
-	rdev = connector->encoder->dev->dev_private;
-
 	if (!radeon_audio_chipset_supported(rdev))
 		return;
 
-	radeon_encoder = to_radeon_encoder(connector->encoder);
+	radeon_encoder = to_radeon_encoder(encoder);
 	dig = radeon_encoder->enc_priv;
 
 	if (!dig->afmt)
@@ -484,7 +486,7 @@ void radeon_audio_detect(struct drm_connector *connector,
 		else
 			radeon_encoder->audio = rdev->audio.hdmi_funcs;
 
-		dig->afmt->pin = radeon_audio_get_pin(connector->encoder);
+		dig->afmt->pin = radeon_audio_get_pin(encoder);
 		if (drm_detect_monitor_audio(radeon_connector_edid(connector))) {
 			radeon_audio_enable(rdev, dig->afmt->pin, 0xf);
 		} else {
diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c
index d17d251..c251eac 100644
--- a/drivers/gpu/drm/radeon/radeon_connectors.c
+++ b/drivers/gpu/drm/radeon/radeon_connectors.c
@@ -1379,7 +1379,7 @@ 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->use_digital)) {
 		radeon_connector_get_edid(connector);
 		radeon_audio_detect(connector, ret);
 	}
-- 
1.8.3.1

[PATCH] drm/radeon: properly select encoder in radeon_audio_detect

[Alex Deucher]

Need to handle DVI where we way end up with an analog encoder
in some cases.

Reported-by: Julian Margetson <runaway@candw.ms>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
---
 drivers/gpu/drm/radeon/radeon_audio.c      | 18 ++++++++++--------
 drivers/gpu/drm/radeon/radeon_connectors.c |  2 +-
 2 files changed, 11 insertions(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_audio.c b/drivers/gpu/drm/radeon/radeon_audio.c
index dcb7796..31b60f6 100644
--- a/drivers/gpu/drm/radeon/radeon_audio.c
+++ b/drivers/gpu/drm/radeon/radeon_audio.c
@@ -453,22 +453,24 @@ void radeon_audio_enable(struct radeon_device *rdev,
 void radeon_audio_detect(struct drm_connector *connector,
 			 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_atom_dig *dig;
+	const struct drm_connector_helper_funcs *connector_funcs =
+		connector->helper_private;
+	struct drm_encoder *encoder = connector_funcs->best_encoder(connector);
+	struct radeon_encoder *radeon_encoder;
 
-	if (!connector || !connector->encoder)
+	if (!connector || !encoder)
 		return;
 
-	if (!radeon_encoder_is_digital(connector->encoder))
+	if (!radeon_encoder_is_digital(encoder))
 		return;
 
-	rdev = connector->encoder->dev->dev_private;
-
 	if (!radeon_audio_chipset_supported(rdev))
 		return;
 
-	radeon_encoder = to_radeon_encoder(connector->encoder);
+	radeon_encoder = to_radeon_encoder(encoder);
 	dig = radeon_encoder->enc_priv;
 
 	if (!dig->afmt)
@@ -484,7 +486,7 @@ void radeon_audio_detect(struct drm_connector *connector,
 		else
 			radeon_encoder->audio = rdev->audio.hdmi_funcs;
 
-		dig->afmt->pin = radeon_audio_get_pin(connector->encoder);
+		dig->afmt->pin = radeon_audio_get_pin(encoder);
 		if (drm_detect_monitor_audio(radeon_connector_edid(connector))) {
 			radeon_audio_enable(rdev, dig->afmt->pin, 0xf);
 		} else {
diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c
index d17d251..c251eac 100644
--- a/drivers/gpu/drm/radeon/radeon_connectors.c
+++ b/drivers/gpu/drm/radeon/radeon_connectors.c
@@ -1379,7 +1379,7 @@ 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->use_digital)) {
 		radeon_connector_get_edid(connector);
 		radeon_audio_detect(connector, ret);
 	}
-- 
1.8.3.1

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[PATCH] drm/radeon: clean up radeon_audio_enable

[Alex Deucher]

- make it static
- fix mask/bool handling for last param

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vgter.kernel.org
---
 drivers/gpu/drm/radeon/radeon_audio.c | 18 +++++++++---------
 drivers/gpu/drm/radeon/radeon_audio.h |  2 --
 2 files changed, 9 insertions(+), 11 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_audio.c b/drivers/gpu/drm/radeon/radeon_audio.c
index 31b60f6..9e9f6a1 100644
--- a/drivers/gpu/drm/radeon/radeon_audio.c
+++ b/drivers/gpu/drm/radeon/radeon_audio.c
@@ -242,6 +242,13 @@ static struct radeon_audio_funcs dce6_dp_funcs = {
 	.dpms = evergreen_dp_enable,
 };
 
+static void radeon_audio_enable(struct radeon_device *rdev,
+				struct r600_audio_pin *pin, u8 enable_mask)
+{
+	if (rdev->audio.funcs->enable)
+		rdev->audio.funcs->enable(rdev, pin, enable_mask);
+}
+
 static void radeon_audio_interface_init(struct radeon_device *rdev)
 {
 	if (ASIC_IS_DCE6(rdev)) {
@@ -307,7 +314,7 @@ int radeon_audio_init(struct radeon_device *rdev)
 
 	/* disable audio.  it will be set up later */
 	for (i = 0; i < rdev->audio.num_pins; i++)
-		radeon_audio_enable(rdev, &rdev->audio.pin[i], false);
+		radeon_audio_enable(rdev, &rdev->audio.pin[i], 0);
 
 	return 0;
 }
@@ -443,13 +450,6 @@ static void radeon_audio_select_pin(struct drm_encoder *encoder)
 		radeon_encoder->audio->select_pin(encoder);
 }
 
-void radeon_audio_enable(struct radeon_device *rdev,
-	struct r600_audio_pin *pin, u8 enable_mask)
-{
-	if (rdev->audio.funcs->enable)
-		rdev->audio.funcs->enable(rdev, pin, enable_mask);
-}
-
 void radeon_audio_detect(struct drm_connector *connector,
 			 enum drm_connector_status status)
 {
@@ -507,7 +507,7 @@ void radeon_audio_fini(struct radeon_device *rdev)
 		return;
 
 	for (i = 0; i < rdev->audio.num_pins; i++)
-		radeon_audio_enable(rdev, &rdev->audio.pin[i], false);
+		radeon_audio_enable(rdev, &rdev->audio.pin[i], 0);
 
 	rdev->audio.enabled = false;
 }
diff --git a/drivers/gpu/drm/radeon/radeon_audio.h b/drivers/gpu/drm/radeon/radeon_audio.h
index c92d059..8438304 100644
--- a/drivers/gpu/drm/radeon/radeon_audio.h
+++ b/drivers/gpu/drm/radeon/radeon_audio.h
@@ -74,8 +74,6 @@ u32 radeon_audio_endpoint_rreg(struct radeon_device *rdev,
 void radeon_audio_endpoint_wreg(struct radeon_device *rdev,
 	u32 offset,	u32 reg, u32 v);
 struct r600_audio_pin *radeon_audio_get_pin(struct drm_encoder *encoder);
-void radeon_audio_enable(struct radeon_device *rdev,
-	struct r600_audio_pin *pin, u8 enable_mask);
 void radeon_audio_fini(struct radeon_device *rdev);
 void radeon_audio_mode_set(struct drm_encoder *encoder,
 	struct drm_display_mode *mode);
-- 
1.8.3.1

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