diff options
| author | Takashi Iwai <tiwai@suse.de> | 2015-02-05 07:08:35 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2015-02-05 07:08:35 +0100 |
| commit | a3ae255e3729c1bb4507412ea29be804f703d44c (patch) | |
| tree | edd1ca577dad5a0d701ae111519eaefa60896f98 /sound/soc/generic/simple-card.c | |
| parent | 3fe9cf390f6dc84f76b112b0a660967a84f9a81b (diff) | |
| parent | 16ca41c6cc904d7eb9e92afc5f576e375c314f90 (diff) | |
Merge tag 'asoc-v3.20-2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next
ASoC: Updates for v3.20
More updates for v3.20:
- Lots of refactoring from Lars-Peter Clausen, moving drivers to more
data driven initialization and rationalizing a lot of DAPM usage.
- Much improved handling of CDCLK clocks on Samsung I2S controllers.
- Lots of driver specific cleanups and feature improvements.
- CODEC support for TI PCM514x and TLV320AIC3104 devices.
- Board support for Tegra systems with Realtek RT5677.
Conflicts:
sound/soc/intel/sst-mfld-platform-pcm.c
Diffstat (limited to 'sound/soc/generic/simple-card.c')
| -rw-r--r-- | sound/soc/generic/simple-card.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/sound/soc/generic/simple-card.c b/sound/soc/generic/simple-card.c index 7fe3009b1c43..f7c6734bd5da 100644 --- a/sound/soc/generic/simple-card.c +++ b/sound/soc/generic/simple-card.c @@ -39,6 +39,37 @@ struct simple_card_data { #define simple_priv_to_link(priv, i) ((priv)->snd_card.dai_link + i) #define simple_priv_to_props(priv, i) ((priv)->dai_props + i) +static int asoc_simple_card_startup(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct simple_card_data *priv = snd_soc_card_get_drvdata(rtd->card); + struct simple_dai_props *dai_props = + &priv->dai_props[rtd - rtd->card->rtd]; + int ret; + + ret = clk_prepare_enable(dai_props->cpu_dai.clk); + if (ret) + return ret; + + ret = clk_prepare_enable(dai_props->codec_dai.clk); + if (ret) + clk_disable_unprepare(dai_props->cpu_dai.clk); + + return ret; +} + +static void asoc_simple_card_shutdown(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct simple_card_data *priv = snd_soc_card_get_drvdata(rtd->card); + struct simple_dai_props *dai_props = + &priv->dai_props[rtd - rtd->card->rtd]; + + clk_disable_unprepare(dai_props->cpu_dai.clk); + + clk_disable_unprepare(dai_props->codec_dai.clk); +} + static int asoc_simple_card_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { @@ -58,6 +89,8 @@ static int asoc_simple_card_hw_params(struct snd_pcm_substream *substream, } static struct snd_soc_ops asoc_simple_card_ops = { + .startup = asoc_simple_card_startup, + .shutdown = asoc_simple_card_shutdown, .hw_params = asoc_simple_card_hw_params, }; @@ -219,6 +252,7 @@ asoc_simple_card_sub_parse_of(struct device_node *np, } dai->sysclk = clk_get_rate(clk); + dai->clk = clk; } else if (!of_property_read_u32(np, "system-clock-frequency", &val)) { dai->sysclk = val; } else { |
