Signed-off-by: Ian Lartey ian@opensource.wolfsonmicro.com --- sound/soc/codecs/wm8741.c | 175 ++++++++++++++++++++++++++++++++------------- 1 files changed, 124 insertions(+), 51 deletions(-)

diff --git a/sound/soc/codecs/wm8741.c b/sound/soc/codecs/wm8741.c index fdd24da..c8e7a26 100644 --- a/sound/soc/codecs/wm8741.c +++ b/sound/soc/codecs/wm8741.c @@ -36,7 +36,7 @@ static const char *wm8741_supply_names[WM8741_NUM_SUPPLIES] = { "DVDD", };

-#define WM8741_NUM_RATES 4 +#define WM8741_NUM_RATES 6

/* codec private data */ struct wm8741_priv { @@ -44,8 +44,7 @@ struct wm8741_priv { u16 reg_cache[WM8741_REGISTER_COUNT]; struct regulator_bulk_data supplies[WM8741_NUM_SUPPLIES]; unsigned int sysclk; - unsigned int rate_constraint_list[WM8741_NUM_RATES]; - struct snd_pcm_hw_constraint_list rate_constraint; + struct snd_pcm_hw_constraint_list *sysclk_constraints; };

static const u16 wm8741_reg_defaults[WM8741_REGISTER_COUNT] = { @@ -108,10 +107,84 @@ static struct { int value; int ratio; } lrclk_ratios[WM8741_NUM_RATES] = { - { 1, 256 }, - { 2, 384 }, - { 3, 512 }, - { 4, 768 }, + { 1, 128 }, + { 2, 192 }, + { 3, 256 }, + { 4, 384 }, + { 5, 512 }, + { 6, 768 }, +}; + +static unsigned int rates_11289[] = { + 44100, 88235, +}; + +static struct snd_pcm_hw_constraint_list constraints_11289 = { + .count = ARRAY_SIZE(rates_11289), + .list = rates_11289, +}; + +static unsigned int rates_12288[] = { + 32000, 48000, 96000, +}; + +static struct snd_pcm_hw_constraint_list constraints_12288 = { + .count = ARRAY_SIZE(rates_12288), + .list = rates_12288, +}; + +static unsigned int rates_16384[] = { + 32000, +}; + +static struct snd_pcm_hw_constraint_list constraints_16384 = { + .count = ARRAY_SIZE(rates_16384), + .list = rates_16384, +}; + +static unsigned int rates_16934[] = { + 44100, 88235, +}; + +static struct snd_pcm_hw_constraint_list constraints_16934 = { + .count = ARRAY_SIZE(rates_16934), + .list = rates_16934, +}; + +static unsigned int rates_18432[] = { + 48000, 96000, +}; + +static struct snd_pcm_hw_constraint_list constraints_18432 = { + .count = ARRAY_SIZE(rates_18432), + .list = rates_18432, +}; + +static unsigned int rates_22579[] = { + 44100, 88235, 1764000 +}; + +static struct snd_pcm_hw_constraint_list constraints_22579 = { + .count = ARRAY_SIZE(rates_22579), + .list = rates_22579, +}; + +static unsigned int rates_24576[] = { + 32000, 48000, 96000, 192000 +}; + +static struct snd_pcm_hw_constraint_list constraints_24576 = { + .count = ARRAY_SIZE(rates_24576), + .list = rates_24576, +}; + +static unsigned int rates_36864[] = { + 48000, 96000, 19200 +}; + +static struct snd_pcm_hw_constraint_list constraints_36864 = { + .count = ARRAY_SIZE(rates_36864), + .list = rates_36864, };

@@ -132,7 +205,7 @@ static int wm8741_startup(struct snd_pcm_substream *substream,

snd_pcm_hw_constraint_list(substream->runtime, 0, SNDRV_PCM_HW_PARAM_RATE, - &wm8741->rate_constraint); + wm8741->sysclk_constraints);

return 0; } @@ -192,47 +265,52 @@ static int wm8741_set_dai_sysclk(struct snd_soc_dai *codec_dai, { struct snd_soc_codec *codec = codec_dai->codec; struct wm8741_priv *wm8741 = snd_soc_codec_get_drvdata(codec); - unsigned int val; - int i;

dev_dbg(codec->dev, "wm8741_set_dai_sysclk info: freq=%dHz\n", freq);

- wm8741->sysclk = freq; - - wm8741->rate_constraint.count = 0; - - for (i = 0; i < ARRAY_SIZE(lrclk_ratios); i++) { - dev_dbg(codec->dev, "index = %d, ratio = %d, freq = %d", - i, lrclk_ratios[i].ratio, freq); - - val = freq / lrclk_ratios[i].ratio; - /* Check that it's a standard rate since core can't - * cope with others and having the odd rates confuses - * constraint matching. - */ - switch (val) { - case 32000: - case 44100: - case 48000: - case 64000: - case 88200: - case 96000: - dev_dbg(codec->dev, "Supported sample rate: %dHz\n", - val); - wm8741->rate_constraint_list[i] = val; - wm8741->rate_constraint.count++; - break; - default: - dev_dbg(codec->dev, "Skipping sample rate: %dHz\n", - val); - } + switch (freq) { + case 11289600: + wm8741->sysclk_constraints = &constraints_11289; + wm8741->sysclk = freq; + return 0; + + case 12288000: + wm8741->sysclk_constraints = &constraints_12288; + wm8741->sysclk = freq; + return 0; + + case 16384000: + wm8741->sysclk_constraints = &constraints_16384; + wm8741->sysclk = freq; + return 0; + + case 16934400: + wm8741->sysclk_constraints = &constraints_16934; + wm8741->sysclk = freq; + return 0; + + case 18432000: + wm8741->sysclk_constraints = &constraints_18432; + wm8741->sysclk = freq; + return 0; + + case 22579200: + case 33868800: + wm8741->sysclk_constraints = &constraints_22579; + wm8741->sysclk = freq; + return 0; + + case 24576000: + wm8741->sysclk_constraints = &constraints_24576; + wm8741->sysclk = freq; + return 0; + + case 36864000: + wm8741->sysclk_constraints = &constraints_36864; + wm8741->sysclk = freq; + return 0; } - - /* Need at least one supported rate... */ - if (wm8741->rate_constraint.count == 0) - return -EINVAL; - - return 0; + return -EINVAL; }

static int wm8741_set_dai_fmt(struct snd_soc_dai *codec_dai, @@ -391,10 +469,6 @@ static int wm8741_i2c_probe(struct i2c_client *i2c, if (wm8741 == NULL) return -ENOMEM;

- wm8741->rate_constraint.list = &wm8741->rate_constraint_list[0]; - wm8741->rate_constraint.count = - ARRAY_SIZE(wm8741->rate_constraint_list); - for (i = 0; i < ARRAY_SIZE(wm8741->supplies); i++) wm8741->supplies[i].supply = wm8741_supply_names[i];

@@ -464,9 +538,8 @@ static int __init wm8741_modinit(void)

#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) ret = i2c_add_driver(&wm8741_i2c_driver); - if (ret != 0) { + if (ret != 0) pr_err("Failed to register WM8741 I2C driver: %d\n", ret); - } #endif

return ret;