Depend on the regmap reg cache implementation for register caching done in the twl-core driver. The local register cache can be removed and we can keep only shadow copies of certain ctl registers for pop noise reduction.
Signed-off-by: Peter Ujfalusi peter.ujfalusi@ti.com --- sound/soc/codecs/twl4030.c | 207 ++++++++++++++------------------------------- 1 file changed, 63 insertions(+), 144 deletions(-)
diff --git a/sound/soc/codecs/twl4030.c b/sound/soc/codecs/twl4030.c index f88207712d3d..dda53e8c51e5 100644 --- a/sound/soc/codecs/twl4030.c +++ b/sound/soc/codecs/twl4030.c @@ -48,86 +48,6 @@
#define TWL4030_CACHEREGNUM (TWL4030_REG_MISC_SET_2 + 1)
-/* - * twl4030 register cache & default register settings - */ -static const u8 twl4030_reg[TWL4030_CACHEREGNUM] = { - 0x00, /* this register not used */ - 0x00, /* REG_CODEC_MODE (0x1) */ - 0x00, /* REG_OPTION (0x2) */ - 0x00, /* REG_UNKNOWN (0x3) */ - 0x00, /* REG_MICBIAS_CTL (0x4) */ - 0x00, /* REG_ANAMICL (0x5) */ - 0x00, /* REG_ANAMICR (0x6) */ - 0x00, /* REG_AVADC_CTL (0x7) */ - 0x00, /* REG_ADCMICSEL (0x8) */ - 0x00, /* REG_DIGMIXING (0x9) */ - 0x0f, /* REG_ATXL1PGA (0xA) */ - 0x0f, /* REG_ATXR1PGA (0xB) */ - 0x0f, /* REG_AVTXL2PGA (0xC) */ - 0x0f, /* REG_AVTXR2PGA (0xD) */ - 0x00, /* REG_AUDIO_IF (0xE) */ - 0x00, /* REG_VOICE_IF (0xF) */ - 0x3f, /* REG_ARXR1PGA (0x10) */ - 0x3f, /* REG_ARXL1PGA (0x11) */ - 0x3f, /* REG_ARXR2PGA (0x12) */ - 0x3f, /* REG_ARXL2PGA (0x13) */ - 0x25, /* REG_VRXPGA (0x14) */ - 0x00, /* REG_VSTPGA (0x15) */ - 0x00, /* REG_VRX2ARXPGA (0x16) */ - 0x00, /* REG_AVDAC_CTL (0x17) */ - 0x00, /* REG_ARX2VTXPGA (0x18) */ - 0x32, /* REG_ARXL1_APGA_CTL (0x19) */ - 0x32, /* REG_ARXR1_APGA_CTL (0x1A) */ - 0x32, /* REG_ARXL2_APGA_CTL (0x1B) */ - 0x32, /* REG_ARXR2_APGA_CTL (0x1C) */ - 0x00, /* REG_ATX2ARXPGA (0x1D) */ - 0x00, /* REG_BT_IF (0x1E) */ - 0x55, /* REG_BTPGA (0x1F) */ - 0x00, /* REG_BTSTPGA (0x20) */ - 0x00, /* REG_EAR_CTL (0x21) */ - 0x00, /* REG_HS_SEL (0x22) */ - 0x00, /* REG_HS_GAIN_SET (0x23) */ - 0x00, /* REG_HS_POPN_SET (0x24) */ - 0x00, /* REG_PREDL_CTL (0x25) */ - 0x00, /* REG_PREDR_CTL (0x26) */ - 0x00, /* REG_PRECKL_CTL (0x27) */ - 0x00, /* REG_PRECKR_CTL (0x28) */ - 0x00, /* REG_HFL_CTL (0x29) */ - 0x00, /* REG_HFR_CTL (0x2A) */ - 0x05, /* REG_ALC_CTL (0x2B) */ - 0x00, /* REG_ALC_SET1 (0x2C) */ - 0x00, /* REG_ALC_SET2 (0x2D) */ - 0x00, /* REG_BOOST_CTL (0x2E) */ - 0x00, /* REG_SOFTVOL_CTL (0x2F) */ - 0x13, /* REG_DTMF_FREQSEL (0x30) */ - 0x00, /* REG_DTMF_TONEXT1H (0x31) */ - 0x00, /* REG_DTMF_TONEXT1L (0x32) */ - 0x00, /* REG_DTMF_TONEXT2H (0x33) */ - 0x00, /* REG_DTMF_TONEXT2L (0x34) */ - 0x79, /* REG_DTMF_TONOFF (0x35) */ - 0x11, /* REG_DTMF_WANONOFF (0x36) */ - 0x00, /* REG_I2S_RX_SCRAMBLE_H (0x37) */ - 0x00, /* REG_I2S_RX_SCRAMBLE_M (0x38) */ - 0x00, /* REG_I2S_RX_SCRAMBLE_L (0x39) */ - 0x06, /* REG_APLL_CTL (0x3A) */ - 0x00, /* REG_DTMF_CTL (0x3B) */ - 0x44, /* REG_DTMF_PGA_CTL2 (0x3C) */ - 0x69, /* REG_DTMF_PGA_CTL1 (0x3D) */ - 0x00, /* REG_MISC_SET_1 (0x3E) */ - 0x00, /* REG_PCMBTMUX (0x3F) */ - 0x00, /* not used (0x40) */ - 0x00, /* not used (0x41) */ - 0x00, /* not used (0x42) */ - 0x00, /* REG_RX_PATH_SEL (0x43) */ - 0x32, /* REG_VDL_APGA_CTL (0x44) */ - 0x00, /* REG_VIBRA_CTL (0x45) */ - 0x00, /* REG_VIBRA_SET (0x46) */ - 0x00, /* REG_VIBRA_PWM_SET (0x47) */ - 0x00, /* REG_ANAMIC_GAIN (0x48) */ - 0x00, /* REG_MISC_SET_2 (0x49) */ -}; - /* codec private data */ struct twl4030_priv { unsigned int codec_powered; @@ -166,31 +86,48 @@ static void tw4030_init_ctl_cache(struct twl4030_priv *twl4030) } }
-/* - * read twl4030 register cache - */ -static inline unsigned int twl4030_read_reg_cache(struct snd_soc_codec *codec, - unsigned int reg) +static void twl4030_update_ctl_cache(struct snd_soc_codec *codec, + unsigned int reg, unsigned int value) { - u8 *cache = codec->reg_cache; - - if (reg >= TWL4030_CACHEREGNUM) - return -EIO; + struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
- return cache[reg]; + switch (reg) { + case TWL4030_REG_EAR_CTL: + case TWL4030_REG_PREDL_CTL: + case TWL4030_REG_PREDR_CTL: + case TWL4030_REG_PRECKL_CTL: + case TWL4030_REG_PRECKR_CTL: + case TWL4030_REG_HS_GAIN_SET: + twl4030->ctl_cache[reg - TWL4030_REG_EAR_CTL] = value; + break; + default: + break; + } }
-/* - * write twl4030 register cache - */ -static inline void twl4030_write_reg_cache(struct snd_soc_codec *codec, - u8 reg, u8 value) +static unsigned int twl4030_read(struct snd_soc_codec *codec, unsigned int reg) { - u8 *cache = codec->reg_cache; + struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec); + u8 value = 0;
if (reg >= TWL4030_CACHEREGNUM) - return; - cache[reg] = value; + return -EIO; + + switch (reg) { + case TWL4030_REG_EAR_CTL: + case TWL4030_REG_PREDL_CTL: + case TWL4030_REG_PREDR_CTL: + case TWL4030_REG_PRECKL_CTL: + case TWL4030_REG_PRECKR_CTL: + case TWL4030_REG_HS_GAIN_SET: + value = twl4030->ctl_cache[reg - TWL4030_REG_EAR_CTL]; + break; + default: + twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE, &value, reg); + break; + } + + return value; }
static bool twl4030_can_write_to_chip(struct snd_soc_codec *codec, @@ -234,13 +171,10 @@ static bool twl4030_can_write_to_chip(struct snd_soc_codec *codec, return write_to_reg; }
-/* - * write to the twl4030 register space - */ static int twl4030_write(struct snd_soc_codec *codec, unsigned int reg, unsigned int value) { - twl4030_write_reg_cache(codec, reg, value); + twl4030_update_ctl_cache(codec, reg, value); if (twl4030_can_write_to_chip(codec, reg)) return twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE, value, reg);
@@ -270,10 +204,8 @@ static void twl4030_codec_enable(struct snd_soc_codec *codec, int enable) else mode = twl4030_audio_disable_resource(TWL4030_AUDIO_RES_POWER);
- if (mode >= 0) { - twl4030_write_reg_cache(codec, TWL4030_REG_CODEC_MODE, mode); + if (mode >= 0) twl4030->codec_powered = enable; - }
/* REVISIT: this delay is present in TI sample drivers */ /* but there seems to be no TRM requirement for it */ @@ -363,13 +295,8 @@ static void twl4030_init_chip(struct snd_soc_codec *codec) /* Initialize the local ctl register cache */ tw4030_init_ctl_cache(twl4030);
- /* Refresh APLL_CTL register from HW */ - twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE, &byte, - TWL4030_REG_APLL_CTL); - twl4030_write_reg_cache(codec, TWL4030_REG_APLL_CTL, byte); - /* anti-pop when changing analog gain */ - reg = twl4030_read_reg_cache(codec, TWL4030_REG_MISC_SET_1); + reg = twl4030_read(codec, TWL4030_REG_MISC_SET_1); twl4030_write(codec, TWL4030_REG_MISC_SET_1, reg | TWL4030_SMOOTH_ANAVOL_EN);
@@ -386,15 +313,15 @@ static void twl4030_init_chip(struct snd_soc_codec *codec)
twl4030->pdata = pdata;
- reg = twl4030_read_reg_cache(codec, TWL4030_REG_HS_POPN_SET); + reg = twl4030_read(codec, TWL4030_REG_HS_POPN_SET); reg &= ~TWL4030_RAMP_DELAY; reg |= (pdata->ramp_delay_value << 2); - twl4030_write_reg_cache(codec, TWL4030_REG_HS_POPN_SET, reg); + twl4030_write(codec, TWL4030_REG_HS_POPN_SET, reg);
/* initiate offset cancellation */ twl4030_codec_enable(codec, 1);
- reg = twl4030_read_reg_cache(codec, TWL4030_REG_ANAMICL); + reg = twl4030_read(codec, TWL4030_REG_ANAMICL); reg &= ~TWL4030_OFFSET_CNCL_SEL; reg |= pdata->offset_cncl_path; twl4030_write(codec, TWL4030_REG_ANAMICL, @@ -408,15 +335,14 @@ static void twl4030_init_chip(struct snd_soc_codec *codec) msleep(20); do { usleep_range(1000, 2000); + twl_set_regcache_bypass(TWL4030_MODULE_AUDIO_VOICE, true); twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE, &byte, TWL4030_REG_ANAMICL); + twl_set_regcache_bypass(TWL4030_MODULE_AUDIO_VOICE, false); } while ((i++ < 100) && ((byte & TWL4030_CNCL_OFFSET_START) == TWL4030_CNCL_OFFSET_START));
- /* Make sure that the reg_cache has the same value as the HW */ - twl4030_write_reg_cache(codec, TWL4030_REG_ANAMICL, byte); - twl4030_codec_enable(codec, 0); }
@@ -436,9 +362,6 @@ static void twl4030_apll_enable(struct snd_soc_codec *codec, int enable) status = twl4030_audio_disable_resource( TWL4030_AUDIO_RES_APLL); } - - if (status >= 0) - twl4030_write_reg_cache(codec, TWL4030_REG_APLL_CTL, status); }
/* Earpiece */ @@ -661,8 +584,7 @@ static int pin_name##pga_event(struct snd_soc_dapm_widget *w, \ switch (event) { \ case SND_SOC_DAPM_POST_PMU: \ twl4030->pin_name##_enabled = 1; \ - twl4030_write(w->codec, reg, \ - twl4030_read_reg_cache(w->codec, reg)); \ + twl4030_write(w->codec, reg, twl4030_read(w->codec, reg)); \ break; \ case SND_SOC_DAPM_POST_PMD: \ twl4030->pin_name##_enabled = 0; \ @@ -683,7 +605,7 @@ static void handsfree_ramp(struct snd_soc_codec *codec, int reg, int ramp) { unsigned char hs_ctl;
- hs_ctl = twl4030_read_reg_cache(codec, reg); + hs_ctl = twl4030_read(codec, reg);
if (ramp) { /* HF ramp-up */ @@ -763,7 +685,7 @@ static int aif_event(struct snd_soc_dapm_widget *w, { u8 audio_if;
- audio_if = twl4030_read_reg_cache(w->codec, TWL4030_REG_AUDIO_IF); + audio_if = twl4030_read(w->codec, TWL4030_REG_AUDIO_IF); switch (event) { case SND_SOC_DAPM_PRE_PMU: /* Enable AIF */ @@ -793,8 +715,8 @@ static void headset_ramp(struct snd_soc_codec *codec, int ramp) 8388608, 16777216, 33554432, 67108864}; unsigned int delay;
- hs_gain = twl4030_read_reg_cache(codec, TWL4030_REG_HS_GAIN_SET); - hs_pop = twl4030_read_reg_cache(codec, TWL4030_REG_HS_POPN_SET); + hs_gain = twl4030_read(codec, TWL4030_REG_HS_GAIN_SET); + hs_pop = twl4030_read(codec, TWL4030_REG_HS_POPN_SET); delay = (ramp_base[(hs_pop & TWL4030_RAMP_DELAY) >> 2] / twl4030->sysclk) + 1;
@@ -1738,7 +1660,7 @@ static void twl4030_tdm_enable(struct snd_soc_codec *codec, int direction, { u8 reg, mask;
- reg = twl4030_read_reg_cache(codec, TWL4030_REG_OPTION); + reg = twl4030_read(codec, TWL4030_REG_OPTION);
if (direction == SNDRV_PCM_STREAM_PLAYBACK) mask = TWL4030_ARXL1_VRX_EN | TWL4030_ARXR1_EN; @@ -1767,7 +1689,7 @@ static int twl4030_startup(struct snd_pcm_substream *substream, if (twl4030->configured) twl4030_constraints(twl4030, twl4030->master_substream); } else { - if (!(twl4030_read_reg_cache(codec, TWL4030_REG_CODEC_MODE) & + if (!(twl4030_read(codec, TWL4030_REG_CODEC_MODE) & TWL4030_OPTION_1)) { /* In option2 4 channel is not supported, set the * constraint for the first stream for channels, the @@ -1815,8 +1737,8 @@ static int twl4030_hw_params(struct snd_pcm_substream *substream,
/* If the substream has 4 channel, do the necessary setup */ if (params_channels(params) == 4) { - format = twl4030_read_reg_cache(codec, TWL4030_REG_AUDIO_IF); - mode = twl4030_read_reg_cache(codec, TWL4030_REG_CODEC_MODE); + format = twl4030_read(codec, TWL4030_REG_AUDIO_IF); + mode = twl4030_read(codec, TWL4030_REG_CODEC_MODE);
/* Safety check: are we in the correct operating mode and * the interface is in TDM mode? */ @@ -1832,8 +1754,8 @@ static int twl4030_hw_params(struct snd_pcm_substream *substream, return 0;
/* bit rate */ - old_mode = twl4030_read_reg_cache(codec, - TWL4030_REG_CODEC_MODE) & ~TWL4030_CODECPDZ; + old_mode = twl4030_read(codec, + TWL4030_REG_CODEC_MODE) & ~TWL4030_CODECPDZ; mode = old_mode & ~TWL4030_APLL_RATE;
switch (params_rate(params)) { @@ -1874,7 +1796,7 @@ static int twl4030_hw_params(struct snd_pcm_substream *substream, }
/* sample size */ - old_format = twl4030_read_reg_cache(codec, TWL4030_REG_AUDIO_IF); + old_format = twl4030_read(codec, TWL4030_REG_AUDIO_IF); format = old_format; format &= ~TWL4030_DATA_WIDTH; switch (params_format(params)) { @@ -1957,7 +1879,7 @@ static int twl4030_set_dai_fmt(struct snd_soc_dai *codec_dai, u8 old_format, format;
/* get format */ - old_format = twl4030_read_reg_cache(codec, TWL4030_REG_AUDIO_IF); + old_format = twl4030_read(codec, TWL4030_REG_AUDIO_IF); format = old_format;
/* set master/slave audio interface */ @@ -2007,7 +1929,7 @@ static int twl4030_set_dai_fmt(struct snd_soc_dai *codec_dai, static int twl4030_set_tristate(struct snd_soc_dai *dai, int tristate) { struct snd_soc_codec *codec = dai->codec; - u8 reg = twl4030_read_reg_cache(codec, TWL4030_REG_AUDIO_IF); + u8 reg = twl4030_read(codec, TWL4030_REG_AUDIO_IF);
if (tristate) reg |= TWL4030_AIF_TRI_EN; @@ -2024,7 +1946,7 @@ static void twl4030_voice_enable(struct snd_soc_codec *codec, int direction, { u8 reg, mask;
- reg = twl4030_read_reg_cache(codec, TWL4030_REG_OPTION); + reg = twl4030_read(codec, TWL4030_REG_OPTION);
if (direction == SNDRV_PCM_STREAM_PLAYBACK) mask = TWL4030_ARXL1_VRX_EN; @@ -2059,7 +1981,7 @@ static int twl4030_voice_startup(struct snd_pcm_substream *substream, /* If the codec mode is not option2, the voice PCM interface is not * available. */ - mode = twl4030_read_reg_cache(codec, TWL4030_REG_CODEC_MODE) + mode = twl4030_read(codec, TWL4030_REG_CODEC_MODE) & TWL4030_OPT_MODE;
if (mode != TWL4030_OPTION_2) { @@ -2091,7 +2013,7 @@ static int twl4030_voice_hw_params(struct snd_pcm_substream *substream, twl4030_voice_enable(codec, substream->stream, 1);
/* bit rate */ - old_mode = twl4030_read_reg_cache(codec, TWL4030_REG_CODEC_MODE) + old_mode = twl4030_read(codec, TWL4030_REG_CODEC_MODE) & ~(TWL4030_CODECPDZ); mode = old_mode;
@@ -2154,7 +2076,7 @@ static int twl4030_voice_set_dai_fmt(struct snd_soc_dai *codec_dai, u8 old_format, format;
/* get format */ - old_format = twl4030_read_reg_cache(codec, TWL4030_REG_VOICE_IF); + old_format = twl4030_read(codec, TWL4030_REG_VOICE_IF); format = old_format;
/* set master/slave audio interface */ @@ -2201,7 +2123,7 @@ static int twl4030_voice_set_dai_fmt(struct snd_soc_dai *codec_dai, static int twl4030_voice_set_tristate(struct snd_soc_dai *dai, int tristate) { struct snd_soc_codec *codec = dai->codec; - u8 reg = twl4030_read_reg_cache(codec, TWL4030_REG_VOICE_IF); + u8 reg = twl4030_read(codec, TWL4030_REG_VOICE_IF);
if (tristate) reg |= TWL4030_VIF_TRI_EN; @@ -2304,13 +2226,10 @@ static int twl4030_soc_remove(struct snd_soc_codec *codec) static struct snd_soc_codec_driver soc_codec_dev_twl4030 = { .probe = twl4030_soc_probe, .remove = twl4030_soc_remove, - .read = twl4030_read_reg_cache, + .read = twl4030_read, .write = twl4030_write, .set_bias_level = twl4030_set_bias_level, .idle_bias_off = true, - .reg_cache_size = sizeof(twl4030_reg), - .reg_word_size = sizeof(u8), - .reg_cache_default = twl4030_reg,
.controls = twl4030_snd_controls, .num_controls = ARRAY_SIZE(twl4030_snd_controls),