diff options
Diffstat (limited to 'drm-i915-Acquire-audio-powerwell-for-HD-Audio-regist.patch')
| -rw-r--r-- | drm-i915-Acquire-audio-powerwell-for-HD-Audio-regist.patch | 64 |
1 files changed, 0 insertions, 64 deletions
diff --git a/drm-i915-Acquire-audio-powerwell-for-HD-Audio-regist.patch b/drm-i915-Acquire-audio-powerwell-for-HD-Audio-regist.patch deleted file mode 100644 index a5dc6f3a2..000000000 --- a/drm-i915-Acquire-audio-powerwell-for-HD-Audio-regist.patch +++ /dev/null @@ -1,64 +0,0 @@ -From 74f829a6e44fe217b6161f8935524fc807be0648 Mon Sep 17 00:00:00 2001 -From: Chris Wilson <chris@chris-wilson.co.uk> -Date: Sat, 9 Jul 2016 11:01:20 +0100 -Subject: [PATCH] drm/i915: Acquire audio powerwell for HD-Audio registers - -On Haswell/Broadwell, the HD-Audio block is inside the HDMI/display -power well and so the sna-hda audio codec acquires the display power -well while it is operational. However, Skylake separates the powerwells -again, but yet we still need the audio powerwell to setup the registers. -(But then the hardware uses those registers even while powered off???) - -v2: Grab both rpm wakelock and audio wakelock - -Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=96214 -Fixes: 03b135cebc47 "ALSA: hda - remove dependency on i915 power well for SKL") -Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> -Cc: Libin Yang <libin.yang@intel.com> -Cc: Takashi Iwai <tiwai@suse.de> -Cc: Marius Vlad <marius.c.vlad@intel.com> ---- - drivers/gpu/drm/i915/intel_audio.c | 6 ++++++ - 1 file changed, 6 insertions(+) - -diff --git a/drivers/gpu/drm/i915/intel_audio.c b/drivers/gpu/drm/i915/intel_audio.c -index 5d5f6bc10e85..948a7a52e3f8 100644 ---- a/drivers/gpu/drm/i915/intel_audio.c -+++ b/drivers/gpu/drm/i915/intel_audio.c -@@ -600,6 +600,8 @@ static void i915_audio_component_codec_wake_override(struct device *dev, - if (!IS_SKYLAKE(dev_priv) && !IS_KABYLAKE(dev_priv)) - return; - -+ i915_audio_component_get_power(dev); -+ - /* - * Enable/disable generating the codec wake signal, overriding the - * internal logic to generate the codec wake to controller. -@@ -615,6 +617,8 @@ static void i915_audio_component_codec_wake_override(struct device *dev, - I915_WRITE(HSW_AUD_CHICKENBIT, tmp); - usleep_range(1000, 1500); - } -+ -+ i915_audio_component_put_power(dev); - } - - /* Get CDCLK in kHz */ -@@ -648,6 +652,7 @@ static int i915_audio_component_sync_audio_rate(struct device *dev, - !IS_HASWELL(dev_priv)) - return 0; - -+ i915_audio_component_get_power(dev); - mutex_lock(&dev_priv->av_mutex); - /* 1. get the pipe */ - intel_encoder = dev_priv->dig_port_map[port]; -@@ -698,6 +703,7 @@ static int i915_audio_component_sync_audio_rate(struct device *dev, - - unlock: - mutex_unlock(&dev_priv->av_mutex); -+ i915_audio_component_put_power(dev); - return err; - } - --- -2.8.1 - |