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| author | Takashi Iwai <tiwai@suse.de> | 2013-10-24 01:24:15 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2013-10-24 11:37:33 +0200 |
| commit | 95f74c41b2e53f541f2f66c8ba3dac1601ebd409 (patch) | |
| tree | b768806091ada70ed34ede093f519855a3aa6a5c | |
| parent | 161ebf295e2ad7876195143342362d2cf6ffaca2 (diff) | |
| download | op-kernel-dev-95f74c41b2e53f541f2f66c8ba3dac1601ebd409.zip op-kernel-dev-95f74c41b2e53f541f2f66c8ba3dac1601ebd409.tar.gz | |
ALSA: hda - Fix mute LED on HP laptops in runtime suspend
When HP laptops with mute and mic-record LEDs go to runtime suspend,
these LEDs are turned on forcibly no matter whether GPIO pis are on or
off. This strange behavior seems triggered by resetting the HD-audio
bus link at azx_rutime_suspend(). So, just add a new hda_bus flag to
avoid the link reset at runtime suspend and set it for these HP
machines.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
| -rw-r--r-- | sound/pci/hda/hda_codec.h | 1 | ||||
| -rw-r--r-- | sound/pci/hda/hda_intel.c | 3 | ||||
| -rw-r--r-- | sound/pci/hda/patch_sigmatel.c | 4 |
3 files changed, 6 insertions, 2 deletions
diff --git a/sound/pci/hda/hda_codec.h b/sound/pci/hda/hda_codec.h index 7aa9870..77db694 100644 --- a/sound/pci/hda/hda_codec.h +++ b/sound/pci/hda/hda_codec.h @@ -698,6 +698,7 @@ struct hda_bus { unsigned int in_reset:1; /* during reset operation */ unsigned int power_keep_link_on:1; /* don't power off HDA link */ unsigned int no_response_fallback:1; /* don't fallback at RIRB error */ + unsigned int avoid_link_reset:1; /* don't reset link at runtime PM */ int primary_dig_out_type; /* primary digital out PCM type */ }; diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index 6e61a01..a0a06f7 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -2986,7 +2986,8 @@ static int azx_runtime_suspend(struct device *dev) STATESTS_INT_MASK); azx_stop_chip(chip); - azx_enter_link_reset(chip); + if (!chip->bus->avoid_link_reset) + azx_enter_link_reset(chip); azx_clear_irq_pending(chip); if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) hda_display_power(false); diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c index fba0cef..69a549a 100644 --- a/sound/pci/hda/patch_sigmatel.c +++ b/sound/pci/hda/patch_sigmatel.c @@ -2091,8 +2091,10 @@ static void stac92hd83xxx_fixup_hp_mic_led(struct hda_codec *codec, { struct sigmatel_spec *spec = codec->spec; - if (action == HDA_FIXUP_ACT_PRE_PROBE) + if (action == HDA_FIXUP_ACT_PRE_PROBE) { spec->mic_mute_led_gpio = 0x08; /* GPIO3 */ + codec->bus->avoid_link_reset = 1; + } } static void stac92hd83xxx_fixup_headset_jack(struct hda_codec *codec, |
