diff options
Diffstat (limited to 'sound/soc/davinci/davinci-evm.c')
| -rw-r--r-- | sound/soc/davinci/davinci-evm.c | 33 |
1 files changed, 23 insertions, 10 deletions
diff --git a/sound/soc/davinci/davinci-evm.c b/sound/soc/davinci/davinci-evm.c index 9e6062cd6b5..54851f31856 100644 --- a/sound/soc/davinci/davinci-evm.c +++ b/sound/soc/davinci/davinci-evm.c @@ -26,8 +26,9 @@ #include "davinci-pcm.h" #include "davinci-i2s.h" -#define EVM_CODEC_CLOCK 22579200 +#define AUDIO_FORMAT (SND_SOC_DAIFMT_DSP_B | \ + SND_SOC_DAIFMT_CBM_CFM | SND_SOC_DAIFMT_IB_NF) static int evm_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { @@ -35,22 +36,34 @@ static int evm_hw_params(struct snd_pcm_substream *substream, struct snd_soc_dai *codec_dai = rtd->dai->codec_dai; struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai; int ret = 0; + unsigned sysclk; + + /* ASP1 on DM355 EVM is clocked by an external oscillator */ + if (machine_is_davinci_dm355_evm()) + sysclk = 27000000; + + /* ASP0 in DM6446 EVM is clocked by U55, as configured by + * board-dm644x-evm.c using GPIOs from U18. There are six + * options; here we "know" we use a 48 KHz sample rate. + */ + else if (machine_is_davinci_evm()) + sysclk = 12288000; + + else + return -EINVAL; /* set codec DAI configuration */ - ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S | - SND_SOC_DAIFMT_CBM_CFM); + ret = snd_soc_dai_set_fmt(codec_dai, AUDIO_FORMAT); if (ret < 0) return ret; /* set cpu DAI configuration */ - ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_CBM_CFM | - SND_SOC_DAIFMT_IB_NF); + ret = snd_soc_dai_set_fmt(cpu_dai, AUDIO_FORMAT); if (ret < 0) return ret; /* set the codec system clock */ - ret = snd_soc_dai_set_sysclk(codec_dai, 0, EVM_CODEC_CLOCK, - SND_SOC_CLOCK_OUT); + ret = snd_soc_dai_set_sysclk(codec_dai, 0, sysclk, SND_SOC_CLOCK_OUT); if (ret < 0) return ret; @@ -128,8 +141,9 @@ static struct snd_soc_dai_link evm_dai = { }; /* davinci-evm audio machine driver */ -static struct snd_soc_machine snd_soc_machine_evm = { +static struct snd_soc_card snd_soc_card_evm = { .name = "DaVinci EVM", + .platform = &davinci_soc_platform, .dai_link = &evm_dai, .num_links = 1, }; @@ -142,8 +156,7 @@ static struct aic3x_setup_data evm_aic3x_setup = { /* evm audio subsystem */ static struct snd_soc_device evm_snd_devdata = { - .machine = &snd_soc_machine_evm, - .platform = &davinci_soc_platform, + .card = &snd_soc_card_evm, .codec_dev = &soc_codec_dev_aic3x, .codec_data = &evm_aic3x_setup, }; |