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Message-ID: <52CD318E.3090706@ti.com>
Date: Wed, 8 Jan 2014 13:07:58 +0200
From: Peter Ujfalusi <peter.ujfalusi@...com>
To: Lee Jones <lee.jones@...aro.org>
CC: Liam Girdwood <lgirdwood@...il.com>,
Mark Brown <broonie@...nel.org>,
Samuel Ortiz <sameo@...ux.intel.com>,
<alsa-devel@...a-project.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 08/11] ASoC: twl4030: Remove local reg cache
Hi Lee,
On 01/08/2014 10:05 AM, Lee Jones wrote:
>> 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@...com>
>> ---
>> sound/soc/codecs/twl4030.c | 207 ++++++++++++++-------------------------------
>> 1 file changed, 63 insertions(+), 144 deletions(-)
>
> Which commit is the patch-set based on? This patch doesn't apply.
When I have sent it it was mainline 3.13-rc6, Now I rebased my series on
3.13-rc7 locally.
> At a guess I'd say it's becuase this commit is applied on my tree:
>
> mfd: twl6040: reg_defaults support for regmap
I also have the twl6040 series underneath the twl4030 patches in my working
branch and the two series does not touch the same files.
> Would you mind rebasing on my ASoC branch please?
>
> git://git.linaro.org/people/lee.jones/mfd.git ib-asoc
I have applied this twl4030 series on this branch and all patches (from 01 to
11) applied w/o issue, not even offset difference.
Not sure what is going on since the sound/soc/codecs/twl4030.c file is
identical in 3.13-rc7 and in your ib-asoc branch so the series should apply
cleanly for you.
--
Péter
> NB: Mark also has this commit on his tree, so it would likely aid us both.
>
>> 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),
>
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