drm/radeon/kms: HDMI irq support

Implements irq support for HDMI audio output. Now the polling timer
is only enabled if irq support isn't available.

Signed-off-by: Christian König <deathsimple@vodafone.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 13 insertions, 8 deletions

diff --git a/drivers/gpu/drm/radeon/r600_audio.c b/drivers/gpu/drm/radeon/r600_audio.c
index ed8d3989f17..2b26553c352 100644
--- a/drivers/gpu/drm/radeon/r600_audio.c
+++ b/drivers/gpu/drm/radeon/r600_audio.c
@@ -104,6 +104,15 @@ uint8_t r600_audio_category_code(struct radeon_device *rdev)
 }
 
 /*
+ * schedule next audio update event
+ */
+void r600_audio_schedule_polling(struct radeon_device *rdev)
+{
+        mod_timer(&rdev->audio_timer,
+                jiffies + msecs_to_jiffies(AUDIO_TIMER_INTERVALL));
+}
+
+/*
  * update all hdmi interfaces with current audio parameters
  */
 static void r600_audio_update_hdmi(unsigned long param)
@@ -136,16 +145,12 @@ static void r600_audio_update_hdmi(unsigned long param)
 
         list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
                 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
-                if (radeon_encoder->audio_polling_active) {
-                        still_going = 1;
-                        if (changes || r600_hdmi_buffer_status_changed(encoder))
-                                r600_hdmi_update_audio_settings(encoder);
-                }
+                still_going |= radeon_encoder->audio_polling_active;
+                if (changes || r600_hdmi_buffer_status_changed(encoder))
+                        r600_hdmi_update_audio_settings(encoder);
         }
 
-        if(still_going)
-                mod_timer(&rdev->audio_timer,
-                        jiffies + msecs_to_jiffies(AUDIO_TIMER_INTERVALL));
+        if(still_going) r600_audio_schedule_polling(rdev);
 }
 
 /*