diff options
Diffstat (limited to 'sound/soc/codecs/wm8776.c')
| -rw-r--r-- | sound/soc/codecs/wm8776.c | 67 |
1 files changed, 32 insertions, 35 deletions
diff --git a/sound/soc/codecs/wm8776.c b/sound/soc/codecs/wm8776.c index 8e7953b1b790..bfdc52370ad0 100644 --- a/sound/soc/codecs/wm8776.c +++ b/sound/soc/codecs/wm8776.c @@ -18,6 +18,7 @@ #include <linux/delay.h> #include <linux/pm.h> #include <linux/i2c.h> +#include <linux/of_device.h> #include <linux/platform_device.h> #include <linux/spi/spi.h> #include <linux/slab.h> @@ -215,8 +216,6 @@ static int wm8776_hw_params(struct snd_pcm_substream *substream, int ratio_shift, master; int i; - iface = 0; - switch (dai->driver->id) { case WM8776_DAI_DAC: iface_reg = WM8776_DACIFCTRL; @@ -232,20 +231,23 @@ static int wm8776_hw_params(struct snd_pcm_substream *substream, return -EINVAL; } - /* Set word length */ - switch (params_format(params)) { - case SNDRV_PCM_FORMAT_S16_LE: - break; - case SNDRV_PCM_FORMAT_S20_3LE: - iface |= 0x10; + switch (snd_pcm_format_width(params_format(params))) { + case 16: + iface = 0; + case 20: + iface = 0x10; break; - case SNDRV_PCM_FORMAT_S24_LE: - iface |= 0x20; + case 24: + iface = 0x20; break; - case SNDRV_PCM_FORMAT_S32_LE: - iface |= 0x30; + case 32: + iface = 0x30; break; + default: + dev_err(codec->dev, "Unsupported sample size: %i\n", + snd_pcm_format_width(params_format(params))); + return -EINVAL; } /* Only need to set MCLK/LRCLK ratio if we're master */ @@ -306,6 +308,8 @@ static int wm8776_set_bias_level(struct snd_soc_codec *codec, break; case SND_SOC_BIAS_STANDBY: if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) { + snd_soc_cache_sync(codec); + /* Disable the global powerdown; DAPM does the rest */ snd_soc_update_bits(codec, WM8776_PWRDOWN, 1, 0); } @@ -320,11 +324,6 @@ static int wm8776_set_bias_level(struct snd_soc_codec *codec, return 0; } -#define WM8776_RATES (SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\ - SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |\ - SNDRV_PCM_RATE_96000) - - #define WM8776_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE) @@ -349,7 +348,9 @@ static struct snd_soc_dai_driver wm8776_dai[] = { .stream_name = "Playback", .channels_min = 2, .channels_max = 2, - .rates = WM8776_RATES, + .rates = SNDRV_PCM_RATE_CONTINUOUS, + .rate_min = 32000, + .rate_max = 192000, .formats = WM8776_FORMATS, }, .ops = &wm8776_dac_ops, @@ -361,7 +362,9 @@ static struct snd_soc_dai_driver wm8776_dai[] = { .stream_name = "Capture", .channels_min = 2, .channels_max = 2, - .rates = WM8776_RATES, + .rates = SNDRV_PCM_RATE_CONTINUOUS, + .rate_min = 32000, + .rate_max = 96000, .formats = WM8776_FORMATS, }, .ops = &wm8776_adc_ops, @@ -378,21 +381,7 @@ static int wm8776_suspend(struct snd_soc_codec *codec, pm_message_t state) static int wm8776_resume(struct snd_soc_codec *codec) { - int i; - u8 data[2]; - u16 *cache = codec->reg_cache; - - /* Sync reg_cache with the hardware */ - for (i = 0; i < ARRAY_SIZE(wm8776_reg); i++) { - if (cache[i] == wm8776_reg[i]) - continue; - data[0] = (i << 1) | ((cache[i] >> 8) & 0x0001); - data[1] = cache[i] & 0x00ff; - codec->hw_write(codec->control_data, data, 2); - } - wm8776_set_bias_level(codec, SND_SOC_BIAS_STANDBY); - return 0; } #else @@ -452,6 +441,12 @@ static struct snd_soc_codec_driver soc_codec_dev_wm8776 = { .reg_cache_default = wm8776_reg, }; +static const struct of_device_id wm8776_of_match[] = { + { .compatible = "wlf,wm8776", }, + { } +}; +MODULE_DEVICE_TABLE(of, wm8776_of_match); + #if defined(CONFIG_SPI_MASTER) static int __devinit wm8776_spi_probe(struct spi_device *spi) { @@ -481,8 +476,9 @@ static int __devexit wm8776_spi_remove(struct spi_device *spi) static struct spi_driver wm8776_spi_driver = { .driver = { - .name = "wm8776-codec", + .name = "wm8776", .owner = THIS_MODULE, + .of_match_table = wm8776_of_match, }, .probe = wm8776_spi_probe, .remove = __devexit_p(wm8776_spi_remove), @@ -525,8 +521,9 @@ MODULE_DEVICE_TABLE(i2c, wm8776_i2c_id); static struct i2c_driver wm8776_i2c_driver = { .driver = { - .name = "wm8776-codec", + .name = "wm8776", .owner = THIS_MODULE, + .of_match_table = wm8776_of_match, }, .probe = wm8776_i2c_probe, .remove = __devexit_p(wm8776_i2c_remove), |