drm/radeon: change audio enable logic

Disable audio around audio hw setup.  This may avoid
hangs on certain asics.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>

5 files changed, 44 insertions, 27 deletions

diff --git a/drivers/gpu/drm/radeon/dce6_afmt.c b/drivers/gpu/drm/radeon/dce6_afmt.c
index 36e8f1084621..94e858751994 100644
--- a/drivers/gpu/drm/radeon/dce6_afmt.c
+++ b/drivers/gpu/drm/radeon/dce6_afmt.c
@@ -278,13 +278,15 @@ static int dce6_audio_chipset_supported(struct radeon_device *rdev)
         return !ASIC_IS_NODCE(rdev);
 }
 
-static void dce6_audio_enable(struct radeon_device *rdev,
-                              struct r600_audio_pin *pin,
-                              bool enable)
+void dce6_audio_enable(struct radeon_device *rdev,
+                       struct r600_audio_pin *pin,
+                       bool enable)
 {
+        if (!pin)
+                return;
+
         WREG32_ENDPOINT(pin->offset, AZ_F0_CODEC_PIN_CONTROL_HOTPLUG_CONTROL,
                         enable ? AUDIO_ENABLED : 0);
-        DRM_INFO("%s audio %d support\n", enable ? "Enabling" : "Disabling", pin->id);
 }
 
 static const u32 pin_offsets[7] =
@@ -323,7 +325,8 @@ int dce6_audio_init(struct radeon_device *rdev)
                 rdev->audio.pin[i].connected = false;
                 rdev->audio.pin[i].offset = pin_offsets[i];
                 rdev->audio.pin[i].id = i;
-                dce6_audio_enable(rdev, &rdev->audio.pin[i], true);
+                /* disable audio.  it will be set up later */
+                dce6_audio_enable(rdev, &rdev->audio.pin[i], false);
         }
 
         return 0;
diff --git a/drivers/gpu/drm/radeon/evergreen_hdmi.c b/drivers/gpu/drm/radeon/evergreen_hdmi.c
index 0c6d5cef4cf1..05b0c95813fd 100644
--- a/drivers/gpu/drm/radeon/evergreen_hdmi.c
+++ b/drivers/gpu/drm/radeon/evergreen_hdmi.c
@@ -306,6 +306,15 @@ void evergreen_hdmi_setmode(struct drm_encoder *encoder, struct drm_display_mode
                 return;
         offset = dig->afmt->offset;
 
+        /* disable audio prior to setting up hw */
+        if (ASIC_IS_DCE6(rdev)) {
+                dig->afmt->pin = dce6_audio_get_pin(rdev);
+                dce6_audio_enable(rdev, dig->afmt->pin, false);
+        } else {
+                dig->afmt->pin = r600_audio_get_pin(rdev);
+                r600_audio_enable(rdev, dig->afmt->pin, false);
+        }
+
         evergreen_audio_set_dto(encoder, mode->clock);
 
         WREG32(HDMI_VBI_PACKET_CONTROL + offset,
@@ -409,12 +418,16 @@ void evergreen_hdmi_setmode(struct drm_encoder *encoder, struct drm_display_mode
         WREG32(AFMT_RAMP_CONTROL1 + offset, 0x007FFFFF);
         WREG32(AFMT_RAMP_CONTROL2 + offset, 0x00000001);
         WREG32(AFMT_RAMP_CONTROL3 + offset, 0x00000001);
+
+        /* enable audio after to setting up hw */
+        if (ASIC_IS_DCE6(rdev))
+                dce6_audio_enable(rdev, dig->afmt->pin, true);
+        else
+                r600_audio_enable(rdev, dig->afmt->pin, true);
 }
 
 void evergreen_hdmi_enable(struct drm_encoder *encoder, bool enable)
 {
-        struct drm_device *dev = encoder->dev;
-        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;
 
@@ -427,15 +440,6 @@ void evergreen_hdmi_enable(struct drm_encoder *encoder, bool enable)
         if (!enable && !dig->afmt->enabled)
                 return;
 
-        if (enable) {
-                if (ASIC_IS_DCE6(rdev))
-                        dig->afmt->pin = dce6_audio_get_pin(rdev);
-                else
-                        dig->afmt->pin = r600_audio_get_pin(rdev);
-        } else {
-                dig->afmt->pin = NULL;
-        }
-
         dig->afmt->enabled = enable;
 
         DRM_DEBUG("%sabling HDMI interface @ 0x%04X for encoder 0x%x\n",
diff --git a/drivers/gpu/drm/radeon/r600_audio.c b/drivers/gpu/drm/radeon/r600_audio.c
index 47fc2b886979..bffac10c4296 100644
--- a/drivers/gpu/drm/radeon/r600_audio.c
+++ b/drivers/gpu/drm/radeon/r600_audio.c
@@ -142,12 +142,15 @@ void r600_audio_update_hdmi(struct work_struct *work)
 }
 
 /* enable the audio stream */
-static void r600_audio_enable(struct radeon_device *rdev,
-                              struct r600_audio_pin *pin,
-                              bool enable)
+void r600_audio_enable(struct radeon_device *rdev,
+                       struct r600_audio_pin *pin,
+                       bool enable)
 {
         u32 value = 0;
 
+        if (!pin)
+                return;
+
         if (ASIC_IS_DCE4(rdev)) {
                 if (enable) {
                         value |= 0x81000000; /* Required to enable audio */
@@ -158,7 +161,6 @@ static void r600_audio_enable(struct radeon_device *rdev,
                 WREG32_P(R600_AUDIO_ENABLE,
                          enable ? 0x81000000 : 0x0, ~0x81000000);
         }
-        DRM_INFO("%s audio %d support\n", enable ? "Enabling" : "Disabling", pin->id);
 }
 
 /*
@@ -178,8 +180,8 @@ int r600_audio_init(struct radeon_device *rdev)
         rdev->audio.pin[0].status_bits = 0;
         rdev->audio.pin[0].category_code = 0;
         rdev->audio.pin[0].id = 0;
-
-        r600_audio_enable(rdev, &rdev->audio.pin[0], true);
+        /* disable audio.  it will be set up later */
+        r600_audio_enable(rdev, &rdev->audio.pin[0], false);
 
         return 0;
 }
diff --git a/drivers/gpu/drm/radeon/r600_hdmi.c b/drivers/gpu/drm/radeon/r600_hdmi.c
index 3016fc14f502..ec810cd7247b 100644
--- a/drivers/gpu/drm/radeon/r600_hdmi.c
+++ b/drivers/gpu/drm/radeon/r600_hdmi.c
@@ -460,6 +460,10 @@ void r600_hdmi_setmode(struct drm_encoder *encoder, struct drm_display_mode *mod
                 return;
         offset = dig->afmt->offset;
 
+        /* disable audio prior to setting up hw */
+        dig->afmt->pin = r600_audio_get_pin(rdev);
+        r600_audio_enable(rdev, dig->afmt->pin, false);
+
         r600_audio_set_dto(encoder, mode->clock);
 
         WREG32(HDMI0_VBI_PACKET_CONTROL + offset,
@@ -531,6 +535,9 @@ void r600_hdmi_setmode(struct drm_encoder *encoder, struct drm_display_mode *mod
         WREG32(HDMI0_RAMP_CONTROL3 + offset, 0x00000001);
 
         r600_hdmi_audio_workaround(encoder);
+
+        /* enable audio after to setting up hw */
+        r600_audio_enable(rdev, dig->afmt->pin, true);
 }
 
 /*
@@ -651,11 +658,6 @@ void r600_hdmi_enable(struct drm_encoder *encoder, bool enable)
         if (!enable && !dig->afmt->enabled)
                 return;
 
-        if (enable)
-                dig->afmt->pin = r600_audio_get_pin(rdev);
-        else
-                dig->afmt->pin = NULL;
-
         /* Older chipsets require setting HDMI and routing manually */
         if (!ASIC_IS_DCE3(rdev)) {
                 if (enable)
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index 024db37b1832..e887d027b6d0 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -2747,6 +2747,12 @@ int radeon_vm_bo_rmv(struct radeon_device *rdev,
 void r600_audio_update_hdmi(struct work_struct *work);
 struct r600_audio_pin *r600_audio_get_pin(struct radeon_device *rdev);
 struct r600_audio_pin *dce6_audio_get_pin(struct radeon_device *rdev);
+void r600_audio_enable(struct radeon_device *rdev,
+                       struct r600_audio_pin *pin,
+                       bool enable);
+void dce6_audio_enable(struct radeon_device *rdev,
+                       struct r600_audio_pin *pin,
+                       bool enable);
 
 /*
  * R600 vram scratch functions