ASoC: TWL4030: Change the Master volume control to TLV (c10b82cf) · Commits · 戴 / test

TWL4030 FGAIN volume control has a range: -62 to 0 dB in 1 dB steps, 0 in the FGAIN means mute. Signed-off-by:

sound/soc/codecs/twl4030.c

+9 −2

Original line number	Diff line number	Diff line
		@@ -33,6 +33,7 @@
		#include <sound/soc.h>
		#include <sound/soc-dapm.h>
		#include <sound/initval.h>
		#include <sound/tlv.h>

		#include "twl4030.h"

		@@ -189,10 +190,16 @@ static void twl4030_init_chip(struct snd_soc_codec *codec)

		}

		/*
		* FGAIN volume control:
		* from -62 to 0 dB in 1 dB steps (mute instead of -63 dB)
		*/
		static DECLARE_TLV_DB_SCALE(master_tlv, -6300, 100, 1);

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