Same as for other codecs, enable MCLK by default. When it is not present, e.g. on MinnowBoard B3 since it's not routed on the LSE connector, we fall back to blck-based clocking.
The DMIC quirks are also fixed, there is a single DMIC input of the codec
Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- sound/soc/intel/boards/bytcr_rt5651.c | 231 +++++++++++++++++++++++++++++++--- 1 file changed, 215 insertions(+), 16 deletions(-)
diff --git a/sound/soc/intel/boards/bytcr_rt5651.c b/sound/soc/intel/boards/bytcr_rt5651.c index 441f735..224e608 100644 --- a/sound/soc/intel/boards/bytcr_rt5651.c +++ b/sound/soc/intel/boards/bytcr_rt5651.c @@ -24,6 +24,9 @@ #include <linux/device.h> #include <linux/dmi.h> #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> @@ -31,14 +34,119 @@ #include "../../codecs/rt5651.h" #include "../atom/sst-atom-controls.h"
+enum { + BYT_RT5651_DMIC_MAP, + BYT_RT5651_IN1_MAP, +}; + +#define BYT_RT5651_MAP(quirk) ((quirk) & 0xff) +#define BYT_RT5651_DMIC_EN BIT(16) +#define BYT_RT5651_MCLK_EN BIT(17) +#define BYT_RT5651_MCLK_25MHZ BIT(18) + +struct byt_rt5651_private { + struct clk *mclk; +}; + +static unsigned long byt_rt5651_quirk = BYT_RT5651_DMIC_MAP | + BYT_RT5651_DMIC_EN | + BYT_RT5651_MCLK_EN; + +static void log_quirks(struct device *dev) +{ + if (BYT_RT5651_MAP(byt_rt5651_quirk) == BYT_RT5651_DMIC_MAP) + dev_info(dev, "quirk DMIC_MAP enabled"); + if (BYT_RT5651_MAP(byt_rt5651_quirk) == BYT_RT5651_IN1_MAP) + dev_info(dev, "quirk IN1_MAP enabled"); + if (byt_rt5651_quirk & BYT_RT5651_DMIC_EN) + dev_info(dev, "quirk DMIC enabled"); + if (byt_rt5651_quirk & BYT_RT5651_MCLK_EN) + dev_info(dev, "quirk MCLK_EN enabled"); + if (byt_rt5651_quirk & BYT_RT5651_MCLK_25MHZ) + dev_info(dev, "quirk MCLK_25MHZ enabled"); +} + +#define BYT_CODEC_DAI1 "rt5651-aif1" + +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; + } + 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_rt5651_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 (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, RT5651_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, RT5651_SCLK_S_RCCLK, + 48000 * 512, + SND_SOC_CLOCK_IN); + if (!ret) + if (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_rt5651_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_rt5651_audio_map[] = { + {"Headphone", NULL, "Platform Clock"}, + {"Headset Mic", NULL, "Platform Clock"}, + {"Internal Mic", NULL, "Platform Clock"}, + {"Speaker", NULL, "Platform Clock"}, + {"AIF1 Playback", NULL, "ssp2 Tx"}, {"ssp2 Tx", NULL, "codec_out0"}, {"ssp2 Tx", NULL, "codec_out1"}, @@ -64,18 +172,6 @@ static const struct snd_soc_dapm_route byt_rt5651_intmic_in1_map[] = { {"IN1P", NULL, "Internal Mic"}, };
-enum { - BYT_RT5651_DMIC1_MAP, - BYT_RT5651_DMIC2_MAP, - BYT_RT5651_IN1_MAP, -}; - -#define BYT_RT5651_MAP(quirk) ((quirk) & 0xff) -#define BYT_RT5651_DMIC_EN BIT(16) - -static unsigned long byt_rt5651_quirk = BYT_RT5651_DMIC1_MAP | - BYT_RT5651_DMIC_EN; - static const struct snd_kcontrol_new byt_rt5651_controls[] = { SOC_DAPM_PIN_SWITCH("Headphone"), SOC_DAPM_PIN_SWITCH("Headset Mic"), @@ -100,9 +196,26 @@ static int byt_rt5651_aif1_hw_params(struct snd_pcm_substream *substream, return ret; }
- ret = snd_soc_dai_set_pll(codec_dai, 0, RT5651_PLL1_S_BCLK1, - params_rate(params) * 50, - params_rate(params) * 512); + 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; @@ -111,7 +224,22 @@ static int byt_rt5651_aif1_hw_params(struct snd_pcm_substream *substream, return 0; }
+static int byt_rt5651_quirk_cb(const struct dmi_system_id *id) +{ + byt_rt5651_quirk = (unsigned long)id->driver_data; + return 1; +} + static const struct dmi_system_id byt_rt5651_quirk_table[] = { + { + .callback = byt_rt5651_quirk_cb, + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Circuitco"), + DMI_MATCH(DMI_PRODUCT_NAME, "Minnowboard Max B3 PLATFORM"), + }, + .driver_data = (unsigned long *)(BYT_RT5651_DMIC_MAP | + BYT_RT5651_DMIC_EN), + }, {} };
@@ -120,11 +248,11 @@ static int byt_rt5651_init(struct snd_soc_pcm_runtime *runtime) int ret; struct snd_soc_card *card = runtime->card; const struct snd_soc_dapm_route *custom_map; + struct byt_rt5651_private *priv = snd_soc_card_get_drvdata(card); int num_routes;
card->dapm.idle_bias_off = true;
- dmi_check_system(byt_rt5651_quirk_table); switch (BYT_RT5651_MAP(byt_rt5651_quirk)) { case BYT_RT5651_IN1_MAP: custom_map = byt_rt5651_intmic_in1_map; @@ -147,6 +275,30 @@ static int byt_rt5651_init(struct snd_soc_pcm_runtime *runtime) snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone"); snd_soc_dapm_ignore_suspend(&card->dapm, "Speaker");
+ if (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_rt5651_quirk & BYT_RT5651_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; }
@@ -295,10 +447,57 @@ static struct snd_soc_card byt_rt5651_card = { static int snd_byt_rt5651_mc_probe(struct platform_device *pdev) { int ret_val = 0; + struct byt_rt5651_private *priv; + + priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_ATOMIC); + if (!priv) + return -ENOMEM;
/* register the soc card */ byt_rt5651_card.dev = &pdev->dev;
+ mach = byt_rt5651_card.dev->platform_data; + snd_soc_card_set_drvdata(&byt_rt5651_card, priv); + + /* fix index of codec dai */ + dai_index = MERR_DPCM_COMPR + 1; + for (i = 0; i < ARRAY_SIZE(byt_rt5651_dais); i++) { + if (!strcmp(byt_rt5651_dais[i].codec_name, "i2c-10EC5651:00")) { + dai_index = i; + break; + } + } + + /* fixup codec name based on HID */ + i2c_name = sst_acpi_find_name_from_hid(mach->id); + if (i2c_name != NULL) { + snprintf(byt_rt5651_codec_name, sizeof(byt_rt5651_codec_name), + "%s%s", "i2c-", i2c_name); + + byt_rt5651_dais[dai_index].codec_name = byt_rt5651_codec_name; + } + + /* check quirks before creating card */ + dmi_check_system(byt_rt5651_quirk_table); + log_quirks(&pdev->dev); + + if (byt_rt5651_quirk & BYT_RT5651_MCLK_EN) { + 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)); + /* + * Fall back to bit clock usage for -ENOENT (clock not + * available likely due to missing dependencies), bail + * for all other errors, including -EPROBE_DEFER + */ + if (ret_val != -ENOENT) + return ret_val; + byt_rt5651_quirk &= ~BYT_RT5651_MCLK_EN; + } + } + ret_val = devm_snd_soc_register_card(&pdev->dev, &byt_rt5651_card);
if (ret_val) {