DECLARE_TLV_DB_RANGE() has the advantage over using TLV_DB_RANGE_HEAD() that it automatically calculates the number of items in the TLV and is hence less prone to manual error.
Generate using the following coccinelle script
// <smpl> @@ declarer name DECLARE_TLV_DB_RANGE; identifier tlv; constant x; @@ -unsigned int tlv[] = { - TLV_DB_RANGE_HEAD(x), +DECLARE_TLV_DB_RANGE(tlv, ... -}; +); // </smpl>
Signed-off-by: Lars-Peter Clausen lars@metafoo.de --- sound/soc/codecs/rt5631.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/sound/soc/codecs/rt5631.c b/sound/soc/codecs/rt5631.c index d877102..1be2bab 100644 --- a/sound/soc/codecs/rt5631.c +++ b/sound/soc/codecs/rt5631.c @@ -174,16 +174,15 @@ static const DECLARE_TLV_DB_SCALE(out_vol_tlv, -4650, 150, 0); static const DECLARE_TLV_DB_SCALE(dac_vol_tlv, -95625, 375, 0); static const DECLARE_TLV_DB_SCALE(in_vol_tlv, -3450, 150, 0); /* {0, +20, +24, +30, +35, +40, +44, +50, +52}dB */ -static unsigned int mic_bst_tlv[] = { - TLV_DB_RANGE_HEAD(7), +static const DECLARE_TLV_DB_RANGE(mic_bst_tlv, 0, 0, TLV_DB_SCALE_ITEM(0, 0, 0), 1, 1, TLV_DB_SCALE_ITEM(2000, 0, 0), 2, 2, TLV_DB_SCALE_ITEM(2400, 0, 0), 3, 5, TLV_DB_SCALE_ITEM(3000, 500, 0), 6, 6, TLV_DB_SCALE_ITEM(4400, 0, 0), 7, 7, TLV_DB_SCALE_ITEM(5000, 0, 0), - 8, 8, TLV_DB_SCALE_ITEM(5200, 0, 0), -}; + 8, 8, TLV_DB_SCALE_ITEM(5200, 0, 0) +);
static int rt5631_dmic_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)