diff options
Diffstat (limited to 'sound/soc/codecs/es8316.c')
| -rw-r--r-- | sound/soc/codecs/es8316.c | 71 |
1 files changed, 51 insertions, 20 deletions
diff --git a/sound/soc/codecs/es8316.c b/sound/soc/codecs/es8316.c index 65e497b455d3..9245c33700de 100644 --- a/sound/soc/codecs/es8316.c +++ b/sound/soc/codecs/es8316.c @@ -27,9 +27,8 @@ * MCLK/LRCK ratios, but we also add ratio 400, which is commonly used on * Intel Cherry Trail platforms (19.2MHz MCLK, 48kHz LRCK). */ -#define NR_SUPPORTED_MCLK_LRCK_RATIOS 6 static const unsigned int supported_mclk_lrck_ratios[] = { - 256, 384, 400, 512, 768, 1024 + 256, 384, 400, 500, 512, 768, 1024 }; struct es8316_priv { @@ -40,7 +39,9 @@ struct es8316_priv { struct snd_soc_jack *jack; int irq; unsigned int sysclk; - unsigned int allowed_rates[NR_SUPPORTED_MCLK_LRCK_RATIOS]; + /* ES83xx supports halving the MCLK so it supports twice as many rates + */ + unsigned int allowed_rates[ARRAY_SIZE(supported_mclk_lrck_ratios) * 2]; struct snd_pcm_hw_constraint_list sysclk_constraints; bool jd_inverted; }; @@ -100,7 +101,7 @@ static const struct snd_kcontrol_new es8316_snd_controls[] = { SOC_DOUBLE_R_TLV("DAC Playback Volume", ES8316_DAC_VOLL, ES8316_DAC_VOLR, 0, 0xc0, 1, dac_vol_tlv), SOC_SINGLE("DAC Soft Ramp Switch", ES8316_DAC_SET1, 4, 1, 1), - SOC_SINGLE("DAC Soft Ramp Rate", ES8316_DAC_SET1, 2, 4, 0), + SOC_SINGLE("DAC Soft Ramp Rate", ES8316_DAC_SET1, 2, 3, 0), SOC_SINGLE("DAC Notch Filter Switch", ES8316_DAC_SET2, 6, 1, 0), SOC_SINGLE("DAC Double Fs Switch", ES8316_DAC_SET2, 7, 1, 0), SOC_SINGLE("DAC Stereo Enhancement", ES8316_DAC_SET3, 0, 7, 0), @@ -382,11 +383,17 @@ static int es8316_set_dai_sysclk(struct snd_soc_dai *codec_dai, /* Limit supported sample rates to ones that can be autodetected * by the codec running in slave mode. */ - for (i = 0; i < NR_SUPPORTED_MCLK_LRCK_RATIOS; i++) { + for (i = 0; i < ARRAY_SIZE(supported_mclk_lrck_ratios); i++) { const unsigned int ratio = supported_mclk_lrck_ratios[i]; if (freq % ratio == 0) es8316->allowed_rates[count++] = freq / ratio; + + /* We also check if the halved MCLK produces a valid rate + * since the codec supports halving the MCLK. + */ + if ((freq / ratio) % 2 == 0) + es8316->allowed_rates[count++] = freq / ratio / 2; } if (count) { @@ -470,19 +477,42 @@ static int es8316_pcm_hw_params(struct snd_pcm_substream *substream, u8 bclk_divider; u16 lrck_divider; int i; + unsigned int clk = es8316->sysclk / 2; + bool clk_valid = false; + + /* We will start with halved sysclk and see if we can use it + * for proper clocking. This is to minimise the risk of running + * the CODEC with a too high frequency. We have an SKU where + * the sysclk frequency is 48Mhz and this causes the sound to be + * sped up. If we can run with a halved sysclk, we will use it, + * if we can't use it, then full sysclk will be used. + */ + do { + /* Validate supported sample rates that are autodetected from MCLK */ + for (i = 0; i < ARRAY_SIZE(supported_mclk_lrck_ratios); i++) { + const unsigned int ratio = supported_mclk_lrck_ratios[i]; + + if (clk % ratio != 0) + continue; + if (clk / ratio == params_rate(params)) + break; + } + if (i == ARRAY_SIZE(supported_mclk_lrck_ratios)) { + if (clk == es8316->sysclk) + return -EINVAL; + clk = es8316->sysclk; + } else { + clk_valid = true; + } + } while (!clk_valid); - /* Validate supported sample rates that are autodetected from MCLK */ - for (i = 0; i < NR_SUPPORTED_MCLK_LRCK_RATIOS; i++) { - const unsigned int ratio = supported_mclk_lrck_ratios[i]; - - if (es8316->sysclk % ratio != 0) - continue; - if (es8316->sysclk / ratio == params_rate(params)) - break; + if (clk != es8316->sysclk) { + snd_soc_component_update_bits(component, ES8316_CLKMGR_CLKSW, + ES8316_CLKMGR_CLKSW_MCLK_DIV, + ES8316_CLKMGR_CLKSW_MCLK_DIV); } - if (i == NR_SUPPORTED_MCLK_LRCK_RATIOS) - return -EINVAL; - lrck_divider = es8316->sysclk / params_rate(params); + + lrck_divider = clk / params_rate(params); bclk_divider = lrck_divider / 4; switch (params_format(params)) { case SNDRV_PCM_FORMAT_S16_LE: @@ -494,6 +524,7 @@ static int es8316_pcm_hw_params(struct snd_pcm_substream *substream, bclk_divider /= 20; break; case SNDRV_PCM_FORMAT_S24_LE: + case SNDRV_PCM_FORMAT_S24_3LE: wordlen = ES8316_SERDATA2_LEN_24; bclk_divider /= 24; break; @@ -525,7 +556,7 @@ static int es8316_mute(struct snd_soc_dai *dai, int mute, int direction) } #define ES8316_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \ - SNDRV_PCM_FMTBIT_S24_LE) + SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE) static const struct snd_soc_dai_ops es8316_ops = { .startup = es8316_pcm_startup, @@ -559,7 +590,7 @@ static struct snd_soc_dai_driver es8316_dai = { static void es8316_enable_micbias_for_mic_gnd_short_detect( struct snd_soc_component *component) { - struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); + struct snd_soc_dapm_context *dapm = snd_soc_component_to_dapm(component); snd_soc_dapm_mutex_lock(dapm); snd_soc_dapm_force_enable_pin_unlocked(dapm, "Bias"); @@ -574,7 +605,7 @@ static void es8316_enable_micbias_for_mic_gnd_short_detect( static void es8316_disable_micbias_for_mic_gnd_short_detect( struct snd_soc_component *component) { - struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); + struct snd_soc_dapm_context *dapm = snd_soc_component_to_dapm(component); snd_soc_dapm_mutex_lock(dapm); snd_soc_dapm_disable_pin_unlocked(dapm, "Mic Bias"); @@ -864,7 +895,7 @@ static int es8316_i2c_probe(struct i2c_client *i2c_client) } static const struct i2c_device_id es8316_i2c_id[] = { - {"es8316", 0 }, + {"es8316" }, {} }; MODULE_DEVICE_TABLE(i2c, es8316_i2c_id); |