diff options
Diffstat (limited to 'sound/soc/codecs/nau8825.c')
| -rw-r--r-- | sound/soc/codecs/nau8825.c | 117 |
1 files changed, 13 insertions, 104 deletions
diff --git a/sound/soc/codecs/nau8825.c b/sound/soc/codecs/nau8825.c index 9e0e4ddf128e..dd3528537ae4 100644 --- a/sound/soc/codecs/nau8825.c +++ b/sound/soc/codecs/nau8825.c @@ -11,6 +11,7 @@ #include <linux/module.h> #include <linux/delay.h> #include <linux/init.h> +#include <linux/int_log.h> #include <linux/i2c.h> #include <linux/regmap.h> #include <linux/slab.h> @@ -38,7 +39,6 @@ #define NAU_FVCO_MIN 90000000 /* cross talk suppression detection */ -#define LOG10_MAGIC 646456993 #define GAIN_AUGMENT 22500 #define SIDETONE_BASE 207000 @@ -219,42 +219,6 @@ static const struct reg_sequence nau8825_regmap_patch[] = { { NAU8825_REG_MIC_BIAS, 0x0046 }, }; - -static const unsigned short logtable[256] = { - 0x0000, 0x0171, 0x02e0, 0x044e, 0x05ba, 0x0725, 0x088e, 0x09f7, - 0x0b5d, 0x0cc3, 0x0e27, 0x0f8a, 0x10eb, 0x124b, 0x13aa, 0x1508, - 0x1664, 0x17bf, 0x1919, 0x1a71, 0x1bc8, 0x1d1e, 0x1e73, 0x1fc6, - 0x2119, 0x226a, 0x23ba, 0x2508, 0x2656, 0x27a2, 0x28ed, 0x2a37, - 0x2b80, 0x2cc8, 0x2e0f, 0x2f54, 0x3098, 0x31dc, 0x331e, 0x345f, - 0x359f, 0x36de, 0x381b, 0x3958, 0x3a94, 0x3bce, 0x3d08, 0x3e41, - 0x3f78, 0x40af, 0x41e4, 0x4319, 0x444c, 0x457f, 0x46b0, 0x47e1, - 0x4910, 0x4a3f, 0x4b6c, 0x4c99, 0x4dc5, 0x4eef, 0x5019, 0x5142, - 0x526a, 0x5391, 0x54b7, 0x55dc, 0x5700, 0x5824, 0x5946, 0x5a68, - 0x5b89, 0x5ca8, 0x5dc7, 0x5ee5, 0x6003, 0x611f, 0x623a, 0x6355, - 0x646f, 0x6588, 0x66a0, 0x67b7, 0x68ce, 0x69e4, 0x6af8, 0x6c0c, - 0x6d20, 0x6e32, 0x6f44, 0x7055, 0x7165, 0x7274, 0x7383, 0x7490, - 0x759d, 0x76aa, 0x77b5, 0x78c0, 0x79ca, 0x7ad3, 0x7bdb, 0x7ce3, - 0x7dea, 0x7ef0, 0x7ff6, 0x80fb, 0x81ff, 0x8302, 0x8405, 0x8507, - 0x8608, 0x8709, 0x8809, 0x8908, 0x8a06, 0x8b04, 0x8c01, 0x8cfe, - 0x8dfa, 0x8ef5, 0x8fef, 0x90e9, 0x91e2, 0x92db, 0x93d2, 0x94ca, - 0x95c0, 0x96b6, 0x97ab, 0x98a0, 0x9994, 0x9a87, 0x9b7a, 0x9c6c, - 0x9d5e, 0x9e4f, 0x9f3f, 0xa02e, 0xa11e, 0xa20c, 0xa2fa, 0xa3e7, - 0xa4d4, 0xa5c0, 0xa6ab, 0xa796, 0xa881, 0xa96a, 0xaa53, 0xab3c, - 0xac24, 0xad0c, 0xadf2, 0xaed9, 0xafbe, 0xb0a4, 0xb188, 0xb26c, - 0xb350, 0xb433, 0xb515, 0xb5f7, 0xb6d9, 0xb7ba, 0xb89a, 0xb97a, - 0xba59, 0xbb38, 0xbc16, 0xbcf4, 0xbdd1, 0xbead, 0xbf8a, 0xc065, - 0xc140, 0xc21b, 0xc2f5, 0xc3cf, 0xc4a8, 0xc580, 0xc658, 0xc730, - 0xc807, 0xc8de, 0xc9b4, 0xca8a, 0xcb5f, 0xcc34, 0xcd08, 0xcddc, - 0xceaf, 0xcf82, 0xd054, 0xd126, 0xd1f7, 0xd2c8, 0xd399, 0xd469, - 0xd538, 0xd607, 0xd6d6, 0xd7a4, 0xd872, 0xd93f, 0xda0c, 0xdad9, - 0xdba5, 0xdc70, 0xdd3b, 0xde06, 0xded0, 0xdf9a, 0xe063, 0xe12c, - 0xe1f5, 0xe2bd, 0xe385, 0xe44c, 0xe513, 0xe5d9, 0xe69f, 0xe765, - 0xe82a, 0xe8ef, 0xe9b3, 0xea77, 0xeb3b, 0xebfe, 0xecc1, 0xed83, - 0xee45, 0xef06, 0xefc8, 0xf088, 0xf149, 0xf209, 0xf2c8, 0xf387, - 0xf446, 0xf505, 0xf5c3, 0xf680, 0xf73e, 0xf7fb, 0xf8b7, 0xf973, - 0xfa2f, 0xfaea, 0xfba5, 0xfc60, 0xfd1a, 0xfdd4, 0xfe8e, 0xff47 -}; - /** * nau8825_sema_acquire - acquire the semaphore of nau88l25 * @nau8825: component to register the codec private data with @@ -368,65 +332,14 @@ static void nau8825_hpvol_ramp(struct nau8825 *nau8825, } /** - * nau8825_intlog10_dec3 - Computes log10 of a value - * the result is round off to 3 decimal. This function takes reference to - * dvb-math. The source code locates as the following. - * Linux/drivers/media/dvb-core/dvb_math.c + * nau8825_intlog10_dec3 - Computes log10 of a value, rounding the result to 3 decimal places. * @value: input for log10 * * return log10(value) * 1000 */ static u32 nau8825_intlog10_dec3(u32 value) { - u32 msb, logentry, significand, interpolation, log10val; - u64 log2val; - - /* first detect the msb (count begins at 0) */ - msb = fls(value) - 1; - /** - * now we use a logtable after the following method: - * - * log2(2^x * y) * 2^24 = x * 2^24 + log2(y) * 2^24 - * where x = msb and therefore 1 <= y < 2 - * first y is determined by shifting the value left - * so that msb is bit 31 - * 0x00231f56 -> 0x8C7D5800 - * the result is y * 2^31 -> "significand" - * then the highest 9 bits are used for a table lookup - * the highest bit is discarded because it's always set - * the highest nine bits in our example are 100011000 - * so we would use the entry 0x18 - */ - significand = value << (31 - msb); - logentry = (significand >> 23) & 0xff; - /** - * last step we do is interpolation because of the - * limitations of the log table the error is that part of - * the significand which isn't used for lookup then we - * compute the ratio between the error and the next table entry - * and interpolate it between the log table entry used and the - * next one the biggest error possible is 0x7fffff - * (in our example it's 0x7D5800) - * needed value for next table entry is 0x800000 - * so the interpolation is - * (error / 0x800000) * (logtable_next - logtable_current) - * in the implementation the division is moved to the end for - * better accuracy there is also an overflow correction if - * logtable_next is 256 - */ - interpolation = ((significand & 0x7fffff) * - ((logtable[(logentry + 1) & 0xff] - - logtable[logentry]) & 0xffff)) >> 15; - - log2val = ((msb << 24) + (logtable[logentry] << 8) + interpolation); - /** - * log10(x) = log2(x) * log10(2) - */ - log10val = (log2val * LOG10_MAGIC) >> 31; - /** - * the result is round off to 3 decimal - */ - return log10val / ((1 << 24) / 1000); + return intlog10(value) / ((1 << 24) / 1000); } /** @@ -1443,10 +1356,10 @@ static int nau8825_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt) unsigned int ctrl1_val = 0, ctrl2_val = 0; switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { - case SND_SOC_DAIFMT_CBM_CFM: + case SND_SOC_DAIFMT_CBP_CFP: ctrl2_val |= NAU8825_I2S_MS_MASTER; break; - case SND_SOC_DAIFMT_CBS_CFS: + case SND_SOC_DAIFMT_CBC_CFC: break; default: return -EINVAL; @@ -2313,7 +2226,7 @@ static const struct regmap_config nau8825_regmap_config = { static int nau8825_component_probe(struct snd_soc_component *component) { struct nau8825 *nau8825 = snd_soc_component_get_drvdata(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); nau8825->dapm = dapm; @@ -2717,7 +2630,7 @@ static int nau8825_set_bias_level(struct snd_soc_component *component, break; case SND_SOC_BIAS_STANDBY: - if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) { + if (snd_soc_dapm_get_bias_level(nau8825->dapm) == SND_SOC_BIAS_OFF) { if (nau8825->mclk_freq) { ret = clk_prepare_enable(nau8825->mclk); if (ret) { @@ -2760,7 +2673,7 @@ static int __maybe_unused nau8825_suspend(struct snd_soc_component *component) struct nau8825 *nau8825 = snd_soc_component_get_drvdata(component); disable_irq(nau8825->irq); - snd_soc_component_force_bias_level(component, SND_SOC_BIAS_OFF); + snd_soc_dapm_force_bias_level(nau8825->dapm, SND_SOC_BIAS_OFF); /* Power down codec power; don't suppoet button wakeup */ snd_soc_dapm_disable_pin(nau8825->dapm, "SAR"); snd_soc_dapm_disable_pin(nau8825->dapm, "MICBIAS"); @@ -2923,16 +2836,12 @@ static int nau8825_read_device_properties(struct device *dev, if (nau8825->adc_delay < 125 || nau8825->adc_delay > 500) dev_warn(dev, "Please set the suitable delay time!\n"); - nau8825->mclk = devm_clk_get(dev, "mclk"); - if (PTR_ERR(nau8825->mclk) == -EPROBE_DEFER) { - return -EPROBE_DEFER; - } else if (PTR_ERR(nau8825->mclk) == -ENOENT) { + nau8825->mclk = devm_clk_get_optional(dev, "mclk"); + if (IS_ERR(nau8825->mclk)) + return PTR_ERR(nau8825->mclk); + if (!nau8825->mclk) /* The MCLK is managed externally or not used at all */ - nau8825->mclk = NULL; dev_info(dev, "No 'mclk' clock found, assume MCLK is managed externally"); - } else if (IS_ERR(nau8825->mclk)) { - return -EINVAL; - } return 0; } @@ -3025,7 +2934,7 @@ static void nau8825_i2c_remove(struct i2c_client *client) {} static const struct i2c_device_id nau8825_i2c_ids[] = { - { "nau8825", 0 }, + { "nau8825" }, { } }; MODULE_DEVICE_TABLE(i2c, nau8825_i2c_ids); |