From 85e9e766380fe40e1937b8316e8aa867544f09f1 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Mon, 6 Jun 2011 19:12:44 +0100 Subject: [PATCH] ASoC: Manage Speyside system clocking only in bias management Now that the CODEC driver supports it defer configuration of the system clock until bias management which is a much more idiomatic place to do system power control and makes things a lot more happy when we're using both interfaces. Signed-off-by: Mark Brown Acked-by: Liam Girdwood --- sound/soc/samsung/speyside.c | 50 ++++++++++++++++++++++++++++-------- 1 file changed, 40 insertions(+), 10 deletions(-) diff --git a/sound/soc/samsung/speyside.c b/sound/soc/samsung/speyside.c index 99fb0337ba5d..2515dba9f4aa 100644 --- a/sound/soc/samsung/speyside.c +++ b/sound/soc/samsung/speyside.c @@ -42,6 +42,7 @@ static int speyside_set_bias_level(struct snd_soc_card *card, pr_err("Failed to stop FLL\n"); return ret; } + break; default: break; @@ -50,6 +51,45 @@ static int speyside_set_bias_level(struct snd_soc_card *card, return 0; } +static int speyside_set_bias_level_post(struct snd_soc_card *card, + struct snd_soc_dapm_context *dapm, + enum snd_soc_bias_level level) +{ + struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai; + int ret; + + if (dapm->dev != codec_dai->dev) + return 0; + + switch (level) { + case SND_SOC_BIAS_PREPARE: + if (card->dapm.bias_level == SND_SOC_BIAS_STANDBY) { + ret = snd_soc_dai_set_pll(codec_dai, 0, + WM8915_FLL_MCLK2, + 32768, 48000 * 256); + if (ret < 0) { + pr_err("Failed to start FLL\n"); + return ret; + } + + ret = snd_soc_dai_set_sysclk(codec_dai, + WM8915_SYSCLK_FLL, + 48000 * 256, + SND_SOC_CLOCK_IN); + if (ret < 0) + return ret; + } + break; + + default: + break; + } + + card->dapm.bias_level = level; + + return 0; +} + static int speyside_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { @@ -70,16 +110,6 @@ static int speyside_hw_params(struct snd_pcm_substream *substream, if (ret < 0) return ret; - ret = snd_soc_dai_set_pll(codec_dai, 0, WM8915_FLL_MCLK2, - 32768, 256 * 48000); - if (ret < 0) - return ret; - - ret = snd_soc_dai_set_sysclk(codec_dai, WM8915_SYSCLK_FLL, - 256 * 48000, SND_SOC_CLOCK_IN); - if (ret < 0) - return ret; - return 0; }