patch for adding missing tlv entry for PCM Playback Volume

  • There's a bug in sgtl5000.c concerning PCM Playback Volume. The TLV entry is missign.
    This patch addes the TLV entry.


    After that the output of amixer works as expected.
    amixer cget name="PCM Playback Volume"
    numid=1,iface=MIXER,name='PCM Playback Volume'
    ; type=INTEGER,access=rw---R--,values=2,min=0,max=192,step=0
    : values=180,180
    | dBscale-min=-90.00dB,step=0.50dB,mute=0



    Index: sound/soc/codecs/sgtl5000.c
    ===================================================================
    --- sound/soc/codecs/sgtl5000.c (revision 99)
    +++ sound/soc/codecs/sgtl5000.c (working copy)
    @@ -707,6 +707,8 @@
    return 0;
    }


    +static const DECLARE_TLV_DB_SCALE(pcm_playback_volume, -9000,50, 0);
    +
    static const DECLARE_TLV_DB_SCALE(capture_6db_attenuate, -600, 600, 0);


    /* tlv for mic gain, 0db 20db 30db 40db */
    @@ -734,6 +736,7 @@
    .name = "PCM Playback Volume",
    .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |
    SNDRV_CTL_ELEM_ACCESS_READWRITE,
    + .tlv.p = pcm_playback_volume,
    .info = dac_info_volsw,
    .get = dac_get_volsw,
    .put = dac_put_volsw,