Merge branch 'topic/rt5670' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into asoc-intel

2 files changed, 160 insertions, 41 deletions

diff --git a/sound/soc/codecs/rt5670.c b/sound/soc/codecs/rt5670.c
index 8a0833de1665..0632b7458a53 100644
--- a/sound/soc/codecs/rt5670.c
+++ b/sound/soc/codecs/rt5670.c
@@ -14,10 +14,12 @@
 #include <linux/init.h>
 #include <linux/delay.h>
 #include <linux/pm.h>
+#include <linux/pm_runtime.h>
 #include <linux/i2c.h>
 #include <linux/platform_device.h>
 #include <linux/acpi.h>
 #include <linux/spi/spi.h>
+#include <linux/dmi.h>
 #include <sound/core.h>
 #include <sound/pcm.h>
 #include <sound/pcm_params.h>
@@ -588,6 +590,89 @@ static int can_use_asrc(struct snd_soc_dapm_widget *source,
 	return 0;
 }
 
+
+/**
+ * rt5670_sel_asrc_clk_src - select ASRC clock source for a set of filters
+ * @codec: SoC audio codec device.
+ * @filter_mask: mask of filters.
+ * @clk_src: clock source
+ *
+ * The ASRC function is for asynchronous MCLK and LRCK. Also, since RT5670 can
+ * only support standard 32fs or 64fs i2s format, ASRC should be enabled to
+ * support special i2s clock format such as Intel's 100fs(100 * sampling rate).
+ * ASRC function will track i2s clock and generate a corresponding system clock
+ * for codec. This function provides an API to select the clock source for a
+ * set of filters specified by the mask. And the codec driver will turn on ASRC
+ * for these filters if ASRC is selected as their clock source.
+ */
+int rt5670_sel_asrc_clk_src(struct snd_soc_codec *codec,
+			    unsigned int filter_mask, unsigned int clk_src)
+{
+	unsigned int asrc2_mask = 0, asrc2_value = 0;
+	unsigned int asrc3_mask = 0, asrc3_value = 0;
+
+	if (clk_src > RT5670_CLK_SEL_SYS3)
+		return -EINVAL;
+
+	if (filter_mask & RT5670_DA_STEREO_FILTER) {
+		asrc2_mask |= RT5670_DA_STO_CLK_SEL_MASK;
+		asrc2_value = (asrc2_value & ~RT5670_DA_STO_CLK_SEL_MASK)
+				| (clk_src <<  RT5670_DA_STO_CLK_SEL_SFT);
+	}
+
+	if (filter_mask & RT5670_DA_MONO_L_FILTER) {
+		asrc2_mask |= RT5670_DA_MONOL_CLK_SEL_MASK;
+		asrc2_value = (asrc2_value & ~RT5670_DA_MONOL_CLK_SEL_MASK)
+				| (clk_src <<  RT5670_DA_MONOL_CLK_SEL_SFT);
+	}
+
+	if (filter_mask & RT5670_DA_MONO_R_FILTER) {
+		asrc2_mask |= RT5670_DA_MONOR_CLK_SEL_MASK;
+		asrc2_value = (asrc2_value & ~RT5670_DA_MONOR_CLK_SEL_MASK)
+				| (clk_src <<  RT5670_DA_MONOR_CLK_SEL_SFT);
+	}
+
+	if (filter_mask & RT5670_AD_STEREO_FILTER) {
+		asrc2_mask |= RT5670_AD_STO1_CLK_SEL_MASK;
+		asrc2_value = (asrc2_value & ~RT5670_AD_STO1_CLK_SEL_MASK)
+				| (clk_src <<  RT5670_AD_STO1_CLK_SEL_SFT);
+	}
+
+	if (filter_mask & RT5670_AD_MONO_L_FILTER) {
+		asrc3_mask |= RT5670_AD_MONOL_CLK_SEL_MASK;
+		asrc3_value = (asrc3_value & ~RT5670_AD_MONOL_CLK_SEL_MASK)
+				| (clk_src <<  RT5670_AD_MONOL_CLK_SEL_SFT);
+	}
+
+	if (filter_mask & RT5670_AD_MONO_R_FILTER)  {
+		asrc3_mask |= RT5670_AD_MONOR_CLK_SEL_MASK;
+		asrc3_value = (asrc3_value & ~RT5670_AD_MONOR_CLK_SEL_MASK)
+				| (clk_src <<  RT5670_AD_MONOR_CLK_SEL_SFT);
+	}
+
+	if (filter_mask & RT5670_UP_RATE_FILTER) {
+		asrc3_mask |= RT5670_UP_CLK_SEL_MASK;
+		asrc3_value = (asrc3_value & ~RT5670_UP_CLK_SEL_MASK)
+				| (clk_src <<  RT5670_UP_CLK_SEL_SFT);
+	}
+
+	if (filter_mask & RT5670_DOWN_RATE_FILTER) {
+		asrc3_mask |= RT5670_DOWN_CLK_SEL_MASK;
+		asrc3_value = (asrc3_value & ~RT5670_DOWN_CLK_SEL_MASK)
+				| (clk_src <<  RT5670_DOWN_CLK_SEL_SFT);
+	}
+
+	if (asrc2_mask)
+		snd_soc_update_bits(codec, RT5670_ASRC_2,
+				    asrc2_mask, asrc2_value);
+
+	if (asrc3_mask)
+		snd_soc_update_bits(codec, RT5670_ASRC_3,
+				    asrc3_mask, asrc3_value);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(rt5670_sel_asrc_clk_src);
+
 /* Digital Mixer */
 static const struct snd_kcontrol_new rt5670_sto1_adc_l_mix[] = {
 	SOC_DAPM_SINGLE("ADC1 Switch", RT5670_STO1_ADC_MIXER,
@@ -2188,6 +2273,13 @@ static int rt5670_set_dai_sysclk(struct snd_soc_dai *dai,
 	if (freq == rt5670->sysclk && clk_id == rt5670->sysclk_src)
 		return 0;
 
+	if (rt5670->pdata.jd_mode) {
+		if (clk_id == RT5670_SCLK_S_PLL1)
+			snd_soc_dapm_force_enable_pin(&codec->dapm, "PLL1");
+		else
+			snd_soc_dapm_disable_pin(&codec->dapm, "PLL1");
+		snd_soc_dapm_sync(&codec->dapm);
+	}
 	switch (clk_id) {
 	case RT5670_SCLK_S_MCLK:
 		reg_val |= RT5670_SCLK_SRC_MCLK;
@@ -2549,6 +2641,17 @@ static struct acpi_device_id rt5670_acpi_match[] = {
 MODULE_DEVICE_TABLE(acpi, rt5670_acpi_match);
 #endif
 
+static const struct dmi_system_id dmi_platform_intel_braswell[] = {
+	{
+		.ident = "Intel Braswell",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Intel Corporation"),
+			DMI_MATCH(DMI_BOARD_NAME, "Braswell CRB"),
+		},
+	},
+	{}
+};
+
 static int rt5670_i2c_probe(struct i2c_client *i2c,
 		    const struct i2c_device_id *id)
 {
@@ -2568,6 +2671,12 @@ static int rt5670_i2c_probe(struct i2c_client *i2c,
 	if (pdata)
 		rt5670->pdata = *pdata;
 
+	if (dmi_check_system(dmi_platform_intel_braswell)) {
+		rt5670->pdata.dmic_en = true;
+		rt5670->pdata.dmic1_data_pin = RT5670_DMIC_DATA_IN2P;
+		rt5670->pdata.jd_mode = 1;
+	}
+
 	rt5670->regmap = devm_regmap_init_i2c(i2c, &rt5670_regmap);
 	if (IS_ERR(rt5670->regmap)) {
 		ret = PTR_ERR(rt5670->regmap);
@@ -2609,6 +2718,10 @@ static int rt5670_i2c_probe(struct i2c_client *i2c,
 	}
 
 	if (rt5670->pdata.jd_mode) {
+		regmap_update_bits(rt5670->regmap, RT5670_GLB_CLK,
+				   RT5670_SCLK_SRC_MASK, RT5670_SCLK_SRC_RCCLK);
+		rt5670->sysclk = 0;
+		rt5670->sysclk_src = RT5670_SCLK_S_RCCLK;
 		regmap_update_bits(rt5670->regmap, RT5670_PWR_ANLG1,
 				   RT5670_PWR_MB, RT5670_PWR_MB);
 		regmap_update_bits(rt5670->regmap, RT5670_PWR_ANLG2,
@@ -2716,18 +2829,26 @@ static int rt5670_i2c_probe(struct i2c_client *i2c,
 
 	}
 
+	pm_runtime_enable(&i2c->dev);
+	pm_request_idle(&i2c->dev);
+
 	ret = snd_soc_register_codec(&i2c->dev, &soc_codec_dev_rt5670,
 			rt5670_dai, ARRAY_SIZE(rt5670_dai));
 	if (ret < 0)
 		goto err;
 
+	pm_runtime_put(&i2c->dev);
+
 	return 0;
 err:
+	pm_runtime_disable(&i2c->dev);
+
 	return ret;
 }
 
 static int rt5670_i2c_remove(struct i2c_client *i2c)
 {
+	pm_runtime_disable(&i2c->dev);
 	snd_soc_unregister_codec(&i2c->dev);
 
 	return 0;
diff --git a/sound/soc/codecs/rt5670.h b/sound/soc/codecs/rt5670.h
index d11b9c207e26..21f8e18c13c4 100644
--- a/sound/soc/codecs/rt5670.h
+++ b/sound/soc/codecs/rt5670.h
@@ -1023,50 +1023,33 @@
 #define RT5670_DMIC_2_M_NOR			(0x0 << 8)
 #define RT5670_DMIC_2_M_ASYN			(0x1 << 8)
 
+/* ASRC clock source selection (0x84, 0x85) */
+#define RT5670_CLK_SEL_SYS			(0x0)
+#define RT5670_CLK_SEL_I2S1_ASRC		(0x1)
+#define RT5670_CLK_SEL_I2S2_ASRC		(0x2)
+#define RT5670_CLK_SEL_I2S3_ASRC		(0x3)
+#define RT5670_CLK_SEL_SYS2			(0x5)
+#define RT5670_CLK_SEL_SYS3			(0x6)
+
 /* ASRC Control 2 (0x84) */
-#define RT5670_MDA_L_M_MASK			(0x1 << 15)
-#define RT5670_MDA_L_M_SFT			15
-#define RT5670_MDA_L_M_NOR			(0x0 << 15)
-#define RT5670_MDA_L_M_ASYN			(0x1 << 15)
-#define RT5670_MDA_R_M_MASK			(0x1 << 14)
-#define RT5670_MDA_R_M_SFT			14
-#define RT5670_MDA_R_M_NOR			(0x0 << 14)
-#define RT5670_MDA_R_M_ASYN			(0x1 << 14)
-#define RT5670_MAD_L_M_MASK			(0x1 << 13)
-#define RT5670_MAD_L_M_SFT			13
-#define RT5670_MAD_L_M_NOR			(0x0 << 13)
-#define RT5670_MAD_L_M_ASYN			(0x1 << 13)
-#define RT5670_MAD_R_M_MASK			(0x1 << 12)
-#define RT5670_MAD_R_M_SFT			12
-#define RT5670_MAD_R_M_NOR			(0x0 << 12)
-#define RT5670_MAD_R_M_ASYN			(0x1 << 12)
-#define RT5670_ADC_M_MASK			(0x1 << 11)
-#define RT5670_ADC_M_SFT			11
-#define RT5670_ADC_M_NOR			(0x0 << 11)
-#define RT5670_ADC_M_ASYN			(0x1 << 11)
-#define RT5670_STO_DAC_M_MASK			(0x1 << 5)
-#define RT5670_STO_DAC_M_SFT			5
-#define RT5670_STO_DAC_M_NOR			(0x0 << 5)
-#define RT5670_STO_DAC_M_ASYN			(0x1 << 5)
-#define RT5670_I2S1_R_D_MASK			(0x1 << 4)
-#define RT5670_I2S1_R_D_SFT			4
-#define RT5670_I2S1_R_D_DIS			(0x0 << 4)
-#define RT5670_I2S1_R_D_EN			(0x1 << 4)
-#define RT5670_I2S2_R_D_MASK			(0x1 << 3)
-#define RT5670_I2S2_R_D_SFT			3
-#define RT5670_I2S2_R_D_DIS			(0x0 << 3)
-#define RT5670_I2S2_R_D_EN			(0x1 << 3)
-#define RT5670_PRE_SCLK_MASK			(0x3)
-#define RT5670_PRE_SCLK_SFT			0
-#define RT5670_PRE_SCLK_512			(0x0)
-#define RT5670_PRE_SCLK_1024			(0x1)
-#define RT5670_PRE_SCLK_2048			(0x2)
+#define RT5670_DA_STO_CLK_SEL_MASK		(0xf << 12)
+#define RT5670_DA_STO_CLK_SEL_SFT		12
+#define RT5670_DA_MONOL_CLK_SEL_MASK		(0xf << 8)
+#define RT5670_DA_MONOL_CLK_SEL_SFT		8
+#define RT5670_DA_MONOR_CLK_SEL_MASK		(0xf << 4)
+#define RT5670_DA_MONOR_CLK_SEL_SFT		4
+#define RT5670_AD_STO1_CLK_SEL_MASK		(0xf << 0)
+#define RT5670_AD_STO1_CLK_SEL_SFT		0
 
 /* ASRC Control 3 (0x85) */
-#define RT5670_I2S1_RATE_MASK			(0xf << 12)
-#define RT5670_I2S1_RATE_SFT			12
-#define RT5670_I2S2_RATE_MASK			(0xf << 8)
-#define RT5670_I2S2_RATE_SFT			8
+#define RT5670_UP_CLK_SEL_MASK			(0xf << 12)
+#define RT5670_UP_CLK_SEL_SFT			12
+#define RT5670_DOWN_CLK_SEL_MASK		(0xf << 8)
+#define RT5670_DOWN_CLK_SEL_SFT			8
+#define RT5670_AD_MONOL_CLK_SEL_MASK		(0xf << 4)
+#define RT5670_AD_MONOL_CLK_SEL_SFT		4
+#define RT5670_AD_MONOR_CLK_SEL_MASK		(0xf << 0)
+#define RT5670_AD_MONOR_CLK_SEL_SFT		0
 
 /* ASRC Control 4 (0x89) */
 #define RT5670_I2S1_PD_MASK			(0x7 << 12)
@@ -1983,6 +1966,21 @@ enum {
 	RT5670_DMIC_DATA_GPIO5,
 };
 
+/* filter mask */
+enum {
+	RT5670_DA_STEREO_FILTER = 0x1,
+	RT5670_DA_MONO_L_FILTER = (0x1 << 1),
+	RT5670_DA_MONO_R_FILTER = (0x1 << 2),
+	RT5670_AD_STEREO_FILTER = (0x1 << 3),
+	RT5670_AD_MONO_L_FILTER = (0x1 << 4),
+	RT5670_AD_MONO_R_FILTER = (0x1 << 5),
+	RT5670_UP_RATE_FILTER   = (0x1 << 6),
+	RT5670_DOWN_RATE_FILTER = (0x1 << 7),
+};
+
+int rt5670_sel_asrc_clk_src(struct snd_soc_codec *codec,
+			    unsigned int filter_mask, unsigned int clk_src);
+
 struct rt5670_priv {
 	struct snd_soc_codec *codec;
 	struct rt5670_platform_data pdata;