diff options
Diffstat (limited to 'sound/soc/intel/boards/bytcr_rt5640.c')
| -rw-r--r-- | sound/soc/intel/boards/bytcr_rt5640.c | 187 |
1 files changed, 172 insertions, 15 deletions
diff --git a/sound/soc/intel/boards/bytcr_rt5640.c b/sound/soc/intel/boards/bytcr_rt5640.c index 9b9d380..11e11c6 100644 --- a/sound/soc/intel/boards/bytcr_rt5640.c +++ b/sound/soc/intel/boards/bytcr_rt5640.c @@ -26,6 +26,7 @@ #include <linux/slab.h> #include <asm/cpu_device_id.h> #include <asm/platform_sst_audio.h> +#include <linux/clk.h> #include <sound/pcm.h> #include <sound/pcm_params.h> #include <sound/soc.h> @@ -49,18 +50,104 @@ enum { #define BYT_RT5640_SSP2_AIF2 BIT(19) /* default is using AIF1 */ #define BYT_RT5640_SSP0_AIF1 BIT(20) #define BYT_RT5640_SSP0_AIF2 BIT(21) +#define BYT_RT5640_MCLK_EN BIT(22) +#define BYT_RT5640_MCLK_25MHZ BIT(23) + +struct byt_rt5640_private { + struct clk *mclk; +}; static unsigned long byt_rt5640_quirk = BYT_RT5640_DMIC1_MAP | - BYT_RT5640_DMIC_EN; + BYT_RT5640_DMIC_EN | + BYT_RT5640_MCLK_EN; + +#define BYT_CODEC_DAI1 "rt5640-aif1" +#define BYT_CODEC_DAI2 "rt5640-aif2" + +static inline struct snd_soc_dai *byt_get_codec_dai(struct snd_soc_card *card) +{ + struct snd_soc_pcm_runtime *rtd; + + list_for_each_entry(rtd, &card->rtd_list, list) { + if (!strncmp(rtd->codec_dai->name, BYT_CODEC_DAI1, + strlen(BYT_CODEC_DAI1))) + return rtd->codec_dai; + if (!strncmp(rtd->codec_dai->name, BYT_CODEC_DAI2, + strlen(BYT_CODEC_DAI2))) + return rtd->codec_dai; + + } + return NULL; +} + +static int platform_clock_control(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *k, int event) +{ + struct snd_soc_dapm_context *dapm = w->dapm; + struct snd_soc_card *card = dapm->card; + struct snd_soc_dai *codec_dai; + struct byt_rt5640_private *priv = snd_soc_card_get_drvdata(card); + int ret; + + codec_dai = byt_get_codec_dai(card); + if (!codec_dai) { + dev_err(card->dev, + "Codec dai not found; Unable to set platform clock\n"); + return -EIO; + } + + if (SND_SOC_DAPM_EVENT_ON(event)) { + if ((byt_rt5640_quirk & BYT_RT5640_MCLK_EN) && priv->mclk) { + ret = clk_prepare_enable(priv->mclk); + if (ret < 0) { + dev_err(card->dev, + "could not configure MCLK state"); + return ret; + } + } + ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_PLL1, + 48000 * 512, + SND_SOC_CLOCK_IN); + } else { + /* + * Set codec clock source to internal clock before + * turning off the platform clock. Codec needs clock + * for Jack detection and button press + */ + ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_RCCLK, + 0, + SND_SOC_CLOCK_IN); + if (!ret) { + if ((byt_rt5640_quirk & BYT_RT5640_MCLK_EN) && priv->mclk) + clk_disable_unprepare(priv->mclk); + } + } + + if (ret < 0) { + dev_err(card->dev, "can't set codec sysclk: %d\n", ret); + return ret; + } + + return 0; +} static const struct snd_soc_dapm_widget byt_rt5640_widgets[] = { SND_SOC_DAPM_HP("Headphone", NULL), SND_SOC_DAPM_MIC("Headset Mic", NULL), SND_SOC_DAPM_MIC("Internal Mic", NULL), SND_SOC_DAPM_SPK("Speaker", NULL), + SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0, + platform_clock_control, SND_SOC_DAPM_PRE_PMU | + SND_SOC_DAPM_POST_PMD), + }; static const struct snd_soc_dapm_route byt_rt5640_audio_map[] = { + {"Headphone", NULL, "Platform Clock"}, + {"Headset Mic", NULL, "Platform Clock"}, + {"Internal Mic", NULL, "Platform Clock"}, + {"Speaker", NULL, "Platform Clock"}, + {"Headset Mic", NULL, "MICBIAS1"}, {"IN2P", NULL, "Headset Mic"}, {"Headphone", NULL, "HPOL"}, @@ -150,21 +237,41 @@ static int byt_rt5640_aif1_hw_params(struct snd_pcm_substream *substream, ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_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_rt5640_quirk & BYT_RT5640_SSP0_AIF1) || - (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) { - - ret = snd_soc_dai_set_pll(codec_dai, 0, RT5640_PLL1_S_BCLK1, - params_rate(params) * 32, /* FIXME */ - params_rate(params) * 512); + if (!(byt_rt5640_quirk & BYT_RT5640_MCLK_EN)) { + /* use bitclock as PLL input */ + if ((byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) || + (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) { + + /* 2x16 bit slots on SSP0 */ + ret = snd_soc_dai_set_pll(codec_dai, 0, + RT5640_PLL1_S_BCLK1, + params_rate(params) * 32, + params_rate(params) * 512); + } else { + /* 2x15 bit slots on SSP2 */ + ret = snd_soc_dai_set_pll(codec_dai, 0, + RT5640_PLL1_S_BCLK1, + params_rate(params) * 50, + params_rate(params) * 512); + } } else { - ret = snd_soc_dai_set_pll(codec_dai, 0, RT5640_PLL1_S_BCLK1, - params_rate(params) * 50, - params_rate(params) * 512); + if (byt_rt5640_quirk & BYT_RT5640_MCLK_25MHZ) { + ret = snd_soc_dai_set_pll(codec_dai, 0, + RT5640_PLL1_S_MCLK, + 25000000, + params_rate(params) * 512); + } else { + ret = snd_soc_dai_set_pll(codec_dai, 0, + RT5640_PLL1_S_MCLK, + 19200000, + params_rate(params) * 512); + } } if (ret < 0) { @@ -188,7 +295,8 @@ static const struct dmi_system_id byt_rt5640_quirk_table[] = { DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100TA"), }, - .driver_data = (unsigned long *)BYT_RT5640_IN1_MAP, + .driver_data = (unsigned long *)(BYT_RT5640_IN1_MAP | + BYT_RT5640_MCLK_EN), }, { .callback = byt_rt5640_quirk_cb, @@ -199,7 +307,8 @@ static const struct dmi_system_id byt_rt5640_quirk_table[] = { .driver_data = (unsigned long *)(BYT_RT5640_IN1_MAP | BYT_RT5640_MONO_SPEAKER | BYT_RT5640_DIFF_MIC | - BYT_RT5640_SSP0_AIF2 + BYT_RT5640_SSP0_AIF2 | + BYT_RT5640_MCLK_EN ), }, { @@ -209,7 +318,8 @@ static const struct dmi_system_id byt_rt5640_quirk_table[] = { DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Venue 8 Pro 5830"), }, .driver_data = (unsigned long *)(BYT_RT5640_DMIC2_MAP | - BYT_RT5640_DMIC_EN), + BYT_RT5640_DMIC_EN | + BYT_RT5640_MCLK_EN), }, { .callback = byt_rt5640_quirk_cb, @@ -217,7 +327,8 @@ static const struct dmi_system_id byt_rt5640_quirk_table[] = { DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "HP ElitePad 1000 G2"), }, - .driver_data = (unsigned long *)BYT_RT5640_IN1_MAP, + .driver_data = (unsigned long *)(BYT_RT5640_IN1_MAP | + BYT_RT5640_MCLK_EN), }, {} }; @@ -228,13 +339,18 @@ static int byt_rt5640_init(struct snd_soc_pcm_runtime *runtime) struct snd_soc_codec *codec = runtime->codec; struct snd_soc_card *card = runtime->card; const struct snd_soc_dapm_route *custom_map; + struct byt_rt5640_private *priv = snd_soc_card_get_drvdata(card); int num_routes; card->dapm.idle_bias_off = true; rt5640_sel_asrc_clk_src(codec, RT5640_DA_STEREO_FILTER | - RT5640_AD_STEREO_FILTER, + RT5640_DA_MONO_L_FILTER | + RT5640_DA_MONO_R_FILTER | + RT5640_AD_STEREO_FILTER | + RT5640_AD_MONO_L_FILTER | + RT5640_AD_MONO_R_FILTER, RT5640_CLK_SEL_ASRC); ret = snd_soc_add_card_controls(card, byt_rt5640_controls, @@ -312,6 +428,30 @@ static int byt_rt5640_init(struct snd_soc_pcm_runtime *runtime) snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone"); snd_soc_dapm_ignore_suspend(&card->dapm, "Speaker"); + if ((byt_rt5640_quirk & BYT_RT5640_MCLK_EN) && priv->mclk) { + /* + * The firmware might enable the clock at + * boot (this information may or may not + * be reflected in the enable clock register). + * To change the rate we must disable the clock + * first to cover these cases. Due to common + * clock framework restrictions that do not allow + * to disable a clock that has not been enabled, + * we need to enable the clock first. + */ + ret = clk_prepare_enable(priv->mclk); + if (!ret) + clk_disable_unprepare(priv->mclk); + + if (byt_rt5640_quirk & BYT_RT5640_MCLK_25MHZ) + ret = clk_set_rate(priv->mclk, 25000000); + else + ret = clk_set_rate(priv->mclk, 19200000); + + if (ret) + dev_err(card->dev, "unable to set MCLK rate\n"); + } + return ret; } @@ -490,6 +630,7 @@ static bool is_valleyview(void) return true; } + static int snd_byt_rt5640_mc_probe(struct platform_device *pdev) { int ret_val = 0; @@ -497,10 +638,16 @@ static int snd_byt_rt5640_mc_probe(struct platform_device *pdev) const char *i2c_name = NULL; int i; int dai_index; + struct byt_rt5640_private *priv; + + priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_ATOMIC); + if (!priv) + return -ENOMEM; /* register the soc card */ byt_rt5640_card.dev = &pdev->dev; mach = byt_rt5640_card.dev->platform_data; + snd_soc_card_set_drvdata(&byt_rt5640_card, priv); /* fix index of codec dai */ dai_index = MERR_DPCM_COMPR + 1; @@ -561,6 +708,16 @@ static int snd_byt_rt5640_mc_probe(struct platform_device *pdev) byt_rt5640_cpu_dai_name; } + if ((byt_rt5640_quirk & BYT_RT5640_MCLK_EN) && (is_valleyview())) { + priv->mclk = devm_clk_get(&pdev->dev, "pmc_plt_clk_3"); + if (IS_ERR(priv->mclk)) { + dev_err(&pdev->dev, + "Failed to get MCLK from pmc_plt_clk_3: %ld\n", + PTR_ERR(priv->mclk)); + return PTR_ERR(priv->mclk); + } + } + ret_val = devm_snd_soc_register_card(&pdev->dev, &byt_rt5640_card); if (ret_val) { |