From aeec6cc0821573920d559f7d6297ea5dd3fbbd17 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Sun, 4 Mar 2018 15:36:03 +0100 Subject: [PATCH] ASoC: Intel: bytcr_rt5651: Configure PLL1 before using it When platform_clock_control() first selects PLL1 as sysclk the PLL_CTRL registers have not been setup yet and we effectively have an invalid clock configuration until byt_rt5651_aif1_hw_params() gets called. Add a new byt_rt5651_prepare_and_enable_pll1() helper and use that from both platform_clock_control() and byt_rt5651_aif1_hw_params() to fix this. Tested-by: Carlo Caione Signed-off-by: Hans de Goede Signed-off-by: Mark Brown --- sound/soc/intel/boards/bytcr_rt5651.c | 73 +++++++++++++++++------------------ 1 file changed, 35 insertions(+), 38 deletions(-) diff --git a/sound/soc/intel/boards/bytcr_rt5651.c b/sound/soc/intel/boards/bytcr_rt5651.c index 91b5841a..af30c73 100644 --- a/sound/soc/intel/boards/bytcr_rt5651.c +++ b/sound/soc/intel/boards/bytcr_rt5651.c @@ -111,6 +111,38 @@ static void log_quirks(struct device *dev) #define BYT_CODEC_DAI1 "rt5651-aif1" +static int byt_rt5651_prepare_and_enable_pll1(struct snd_soc_dai *codec_dai, + int rate, int bclk_ratio) +{ + int clk_id, clk_freq, ret; + + /* Configure the PLL before selecting it */ + if (!(byt_rt5651_quirk & BYT_RT5651_MCLK_EN)) { + clk_id = RT5651_PLL1_S_BCLK1, + clk_freq = rate * bclk_ratio; + } else { + clk_id = RT5651_PLL1_S_MCLK; + if (byt_rt5651_quirk & BYT_RT5651_MCLK_25MHZ) + clk_freq = 25000000; + else + clk_freq = 19200000; + } + ret = snd_soc_dai_set_pll(codec_dai, 0, clk_id, clk_freq, rate * 512); + if (ret < 0) { + dev_err(codec_dai->codec->dev, "can't set pll: %d\n", ret); + return ret; + } + + ret = snd_soc_dai_set_sysclk(codec_dai, RT5651_SCLK_S_PLL1, + rate * 512, SND_SOC_CLOCK_IN); + if (ret < 0) { + dev_err(codec_dai->codec->dev, "can't set clock %d\n", ret); + return ret; + } + + return 0; +} + static int platform_clock_control(struct snd_soc_dapm_widget *w, struct snd_kcontrol *k, int event) { @@ -136,9 +168,7 @@ static int platform_clock_control(struct snd_soc_dapm_widget *w, return ret; } } - ret = snd_soc_dai_set_sysclk(codec_dai, RT5651_SCLK_S_PLL1, - 48000 * 512, - SND_SOC_CLOCK_IN); + ret = byt_rt5651_prepare_and_enable_pll1(codec_dai, 48000, 50); } else { /* * Set codec clock source to internal clock before @@ -252,44 +282,11 @@ static int byt_rt5651_aif1_hw_params(struct snd_pcm_substream *substream, { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_dai *codec_dai = rtd->codec_dai; - int ret; + int rate = params_rate(params); snd_soc_dai_set_bclk_ratio(codec_dai, 50); - ret = snd_soc_dai_set_sysclk(codec_dai, RT5651_SCLK_S_PLL1, - params_rate(params) * 512, - SND_SOC_CLOCK_IN); - if (ret < 0) { - dev_err(rtd->dev, "can't set codec clock %d\n", ret); - return ret; - } - - if (!(byt_rt5651_quirk & BYT_RT5651_MCLK_EN)) { - /* 2x25 bit slots on SSP2 */ - ret = snd_soc_dai_set_pll(codec_dai, 0, - RT5651_PLL1_S_BCLK1, - params_rate(params) * 50, - params_rate(params) * 512); - } else { - if (byt_rt5651_quirk & BYT_RT5651_MCLK_25MHZ) { - ret = snd_soc_dai_set_pll(codec_dai, 0, - RT5651_PLL1_S_MCLK, - 25000000, - params_rate(params) * 512); - } else { - ret = snd_soc_dai_set_pll(codec_dai, 0, - RT5651_PLL1_S_MCLK, - 19200000, - params_rate(params) * 512); - } - } - - if (ret < 0) { - dev_err(rtd->dev, "can't set codec pll: %d\n", ret); - return ret; - } - - return 0; + return byt_rt5651_prepare_and_enable_pll1(codec_dai, rate, 50); } static int byt_rt5651_quirk_cb(const struct dmi_system_id *id) -- 2.7.4