ASoC: TWL4030: Add CGAIN volume control (0d33ea0b) · Commits · 戴 / test

Add CGAIN (Coarse gain control) to TWL4030 codec. The range of the CGAIN is: 0 dB to 12 dB in 6 dB steps. Signed-off-by:

sound/soc/codecs/twl4030.c

+10 −0

Original line number	Diff line number	Diff line
		@@ -196,10 +196,20 @@ static void twl4030_init_chip(struct snd_soc_codec *codec)
		*/
		static DECLARE_TLV_DB_SCALE(master_tlv, -6300, 100, 1);

		/*
		* CGAIN volume control:
		* 0 dB to 12 dB in 6 dB steps
		* value 2 and 3 means 12 dB
		*/
		static DECLARE_TLV_DB_SCALE(master_coarse_tlv, 0, 600, 0);

		static const struct snd_kcontrol_new twl4030_snd_controls[] = {
		SOC_DOUBLE_R_TLV("Master Playback Volume",
		TWL4030_REG_ARXL2PGA, TWL4030_REG_ARXR2PGA,
		0, 0x3f, 0, master_tlv),
		SOC_DOUBLE_R_TLV("Master PCM Playback Volume",
		TWL4030_REG_ARXL2PGA, TWL4030_REG_ARXR2PGA,
		6, 0x2, 0, master_coarse_tlv),
		SOC_DOUBLE_R("Capture Volume",
		TWL4030_REG_ATXL1PGA, TWL4030_REG_ATXR1PGA,
		0, 0x1f, 0),