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| author | Takashi Iwai <tiwai@suse.de> | 2015-06-11 10:51:28 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2015-06-11 11:55:48 +0200 |
| commit | a686ec4c5f28eb1b384e4b87b08543155c970072 (patch) | |
| tree | d35a87067360948ffad9e2dae8cfeb9d97d5925e /include | |
| parent | bf06848bdbe549175d25d2327ab9f37d4bd556b7 (diff) | |
| download | linux-stable-a686ec4c5f28eb1b384e4b87b08543155c970072.tar.gz linux-stable-a686ec4c5f28eb1b384e4b87b08543155c970072.tar.bz2 linux-stable-a686ec4c5f28eb1b384e4b87b08543155c970072.zip | |
ALSA: hda - Re-add the lost fake mute support
Yet another regression by the transition to regmap cache; for better
usability, we had the fake mute control using the zero amp value for
Conexant codecs, and this was forgotten in the new hda core code.
Since the bits 4-7 are unused for the amp registers (as we follow the
syntax of AMP_GET verb), the bit 4 is now used to indicate the fake
mute. For setting this flag, snd_hda_codec_amp_update() becomes a
function from a simple macro. The bonus is that it gained a proper
function description.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'include')
| -rw-r--r-- | include/sound/hda_regmap.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/sound/hda_regmap.h b/include/sound/hda_regmap.h index 53a18b3635e2..df705908480a 100644 --- a/include/sound/hda_regmap.h +++ b/include/sound/hda_regmap.h @@ -9,6 +9,8 @@ #include <sound/core.h> #include <sound/hdaudio.h> +#define AC_AMP_FAKE_MUTE 0x10 /* fake mute bit set to amp verbs */ + int snd_hdac_regmap_init(struct hdac_device *codec); void snd_hdac_regmap_exit(struct hdac_device *codec); int snd_hdac_regmap_add_vendor_verb(struct hdac_device *codec, |