Merge remote-tracking branches 'asoc/topic/da7218', 'asoc/topic/da721…

…9' and 'asoc/topic/dpcm' into asoc-next

include/sound/da7219.h

@@ -34,6 +34,8 @@ enum da7219_mic_amp_in_sel {
 struct da7219_aad_pdata;
 
 struct da7219_pdata {
+	bool wakeup_source;
+
 	/* Mic */
 	enum da7219_micbias_voltage micbias_lvl;
 	enum da7219_mic_amp_in_sel mic_amp_in_sel;

sound/soc/codecs/da7218.c

@@ -1819,7 +1819,7 @@ static int da7218_set_dai_sysclk(struct snd_soc_dai *codec_dai,
 	if (da7218->mclk_rate == freq)
 		return 0;
 
-	if (((freq < 2000000) && (freq != 32768)) || (freq > 54000000)) {
+	if ((freq < 2000000) || (freq > 54000000)) {
 		dev_err(codec_dai->dev, "Unsupported MCLK value %d\n",
 			freq);
 		return -EINVAL;
@@ -1866,11 +1866,8 @@ static int da7218_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
 	u32 freq_ref;
 	u64 frac_div;
 
-	/* Verify 32KHz, 2MHz - 54MHz MCLK provided, and set input divider */
-	if (da7218->mclk_rate == 32768) {
-		indiv_bits = DA7218_PLL_INDIV_9_TO_18_MHZ;
-		indiv = DA7218_PLL_INDIV_9_TO_18_MHZ_VAL;
-	} else if (da7218->mclk_rate < 2000000) {
+	/* Verify 2MHz - 54MHz MCLK provided, and set input divider */
+	if (da7218->mclk_rate < 2000000) {
 		dev_err(codec->dev, "PLL input clock %d below valid range\n",
 			da7218->mclk_rate);
 		return -EINVAL;
@@ -1911,9 +1908,6 @@ static int da7218_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
 	case DA7218_SYSCLK_PLL_SRM:
 		pll_ctrl |= DA7218_PLL_MODE_SRM;
 		break;
-	case DA7218_SYSCLK_PLL_32KHZ:
-		pll_ctrl |= DA7218_PLL_MODE_32KHZ;
-		break;
 	default:
 		dev_err(codec->dev, "Invalid PLL config\n");
 		return -EINVAL;
@@ -2589,20 +2583,22 @@ static int da7218_set_bias_level(struct snd_soc_codec *codec,
 
 	switch (level) {
 	case SND_SOC_BIAS_ON:
-	case SND_SOC_BIAS_PREPARE:
 		break;
-	case SND_SOC_BIAS_STANDBY:
-		if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) {
-			/* MCLK */
+	case SND_SOC_BIAS_PREPARE:
+		/* Enable MCLK for transition to ON state */
+		if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_STANDBY) {
 			if (da7218->mclk) {
 				ret = clk_prepare_enable(da7218->mclk);
 				if (ret) {
-					dev_err(codec->dev,
-						"Failed to enable mclk\n");
+					dev_err(codec->dev, "Failed to enable mclk\n");
 					return ret;
 				}
 			}
+		}
 
+		break;
+	case SND_SOC_BIAS_STANDBY:
+		if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) {
 			/* Master bias */
 			snd_soc_update_bits(codec, DA7218_REFERENCES,
 					    DA7218_BIAS_EN_MASK,
@@ -2612,6 +2608,10 @@ static int da7218_set_bias_level(struct snd_soc_codec *codec,
 			snd_soc_update_bits(codec, DA7218_LDO_CTRL,
 					    DA7218_LDO_EN_MASK,
 					    DA7218_LDO_EN_MASK);
+		} else {
+			/* Remove MCLK */
+			if (da7218->mclk)
+				clk_disable_unprepare(da7218->mclk);
 		}
 		break;
 	case SND_SOC_BIAS_OFF:
@@ -2625,10 +2625,6 @@ static int da7218_set_bias_level(struct snd_soc_codec *codec,
 			snd_soc_update_bits(codec, DA7218_REFERENCES,
 					    DA7218_BIAS_EN_MASK, 0);
 		}
-
-		/* MCLK */
-		if (da7218->mclk)
-			clk_disable_unprepare(da7218->mclk);
 		break;
 	}
 

sound/soc/codecs/da7218.h

@@ -888,7 +888,6 @@
 #define DA7218_PLL_MODE_BYPASS		(0x0 << 6)
 #define DA7218_PLL_MODE_NORMAL		(0x1 << 6)
 #define DA7218_PLL_MODE_SRM		(0x2 << 6)
-#define DA7218_PLL_MODE_32KHZ		(0x3 << 6)
 
 /* DA7218_PLL_FRAC_TOP = 0x92 */
 #define DA7218_PLL_FBDIV_FRAC_TOP_SHIFT	0
@@ -1371,7 +1370,6 @@ enum da7218_sys_clk {
 	DA7218_SYSCLK_MCLK = 0,
 	DA7218_SYSCLK_PLL,
 	DA7218_SYSCLK_PLL_SRM,
-	DA7218_SYSCLK_PLL_32KHZ
 };
 
 enum da7218_dev_id {

sound/soc/codecs/da7219-aad.c

@@ -13,6 +13,7 @@
 
 #include <linux/module.h>
 #include <linux/platform_device.h>
+#include <linux/clk.h>
 #include <linux/i2c.h>
 #include <linux/property.h>
 #include <linux/pm_wakeirq.h>
@@ -114,13 +115,38 @@ static void da7219_aad_hptest_work(struct work_struct *work)
 	struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
 
 	u16 tonegen_freq_hptest;
-	u8 accdet_cfg8;
-	int report = 0;
+	u8 pll_srm_sts, gain_ramp_ctrl, accdet_cfg8;
+	int report = 0, ret = 0;
 
 	/* Lock DAPM and any Kcontrols that are affected by this test */
 	snd_soc_dapm_mutex_lock(dapm);
 	mutex_lock(&da7219->lock);
 
+	/* Ensure MCLK is available for HP test procedure */
+	if (da7219->mclk) {
+		ret = clk_prepare_enable(da7219->mclk);
+		if (ret) {
+			dev_err(codec->dev, "Failed to enable mclk - %d\n", ret);
+			mutex_unlock(&da7219->lock);
+			snd_soc_dapm_mutex_unlock(dapm);
+			return;
+		}
+	}
+
+	/*
+	 * If MCLK not present, then we're using the internal oscillator and
+	 * require different frequency settings to achieve the same result.
+	 */
+	pll_srm_sts = snd_soc_read(codec, DA7219_PLL_SRM_STS);
+	if (pll_srm_sts & DA7219_PLL_SRM_STS_MCLK)
+		tonegen_freq_hptest = cpu_to_le16(DA7219_AAD_HPTEST_RAMP_FREQ);
+	else
+		tonegen_freq_hptest = cpu_to_le16(DA7219_AAD_HPTEST_RAMP_FREQ_INT_OSC);
+
+	/* Ensure gain ramping at fastest rate */
+	gain_ramp_ctrl = snd_soc_read(codec, DA7219_GAIN_RAMP_CTRL);
+	snd_soc_write(codec, DA7219_GAIN_RAMP_CTRL, DA7219_GAIN_RAMP_RATE_X8);
+
 	/* Bypass cache so it saves current settings */
 	regcache_cache_bypass(da7219->regmap, true);
 
@@ -183,9 +209,15 @@ static void da7219_aad_hptest_work(struct work_struct *work)
 	snd_soc_write(codec, DA7219_HP_R_CTRL,
 		      DA7219_HP_R_AMP_OE_MASK | DA7219_HP_R_AMP_EN_MASK);
 
+	/*
+	 * If we're running from the internal oscillator then give audio paths
+	 * time to settle before running test.
+	 */
+	if (!(pll_srm_sts & DA7219_PLL_SRM_STS_MCLK))
+		msleep(DA7219_AAD_HPTEST_INT_OSC_PATH_DELAY);
+
 	/* Configure & start Tone Generator */
 	snd_soc_write(codec, DA7219_TONE_GEN_ON_PER, DA7219_BEEP_ON_PER_MASK);
-	tonegen_freq_hptest = cpu_to_le16(DA7219_AAD_HPTEST_RAMP_FREQ);
 	regmap_raw_write(da7219->regmap, DA7219_TONE_GEN_FREQ1_L,
 			 &tonegen_freq_hptest, sizeof(tonegen_freq_hptest));
 	snd_soc_update_bits(codec, DA7219_TONE_GEN_CFG2,
@@ -244,12 +276,26 @@ static void da7219_aad_hptest_work(struct work_struct *work)
 	snd_soc_update_bits(codec, DA7219_ACCDET_CONFIG_8,
 			    DA7219_HPTEST_EN_MASK, 0);
 
+	/*
+	 * If we're running from the internal oscillator then give audio paths
+	 * time to settle before allowing headphones to be driven as required.
+	 */
+	if (!(pll_srm_sts & DA7219_PLL_SRM_STS_MCLK))
+		msleep(DA7219_AAD_HPTEST_INT_OSC_PATH_DELAY);
+
+	/* Restore gain ramping rate */
+	snd_soc_write(codec, DA7219_GAIN_RAMP_CTRL, gain_ramp_ctrl);
+
 	/* Drive Headphones/lineout */
 	snd_soc_update_bits(codec, DA7219_HP_L_CTRL, DA7219_HP_L_AMP_OE_MASK,
 			    DA7219_HP_L_AMP_OE_MASK);
 	snd_soc_update_bits(codec, DA7219_HP_R_CTRL, DA7219_HP_R_AMP_OE_MASK,
 			    DA7219_HP_R_AMP_OE_MASK);
 
+	/* Remove MCLK, if previously enabled */
+	if (da7219->mclk)
+		clk_disable_unprepare(da7219->mclk);
+
 	mutex_unlock(&da7219->lock);
 	snd_soc_dapm_mutex_unlock(dapm);
 
@@ -750,6 +796,62 @@ static void da7219_aad_handle_pdata(struct snd_soc_codec *codec)
 }
 
 
+/*
+ * Suspend/Resume
+ */
+
+void da7219_aad_suspend(struct snd_soc_codec *codec)
+{
+	struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
+	struct da7219_aad_priv *da7219_aad = da7219->aad;
+	struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
+	u8 micbias_ctrl;
+
+	if (da7219_aad->jack) {
+		/* Disable jack detection during suspend */
+		snd_soc_update_bits(codec, DA7219_ACCDET_CONFIG_1,
+				    DA7219_ACCDET_EN_MASK, 0);
+
+		/*
+		 * If we have a 4-pole jack inserted, then micbias will be
+		 * enabled. We can disable micbias here, and keep a note to
+		 * re-enable it on resume. If jack removal occurred during
+		 * suspend then this will be dealt with through the IRQ handler.
+		 */
+		if (da7219_aad->jack_inserted) {
+			micbias_ctrl = snd_soc_read(codec, DA7219_MICBIAS_CTRL);
+			if (micbias_ctrl & DA7219_MICBIAS1_EN_MASK) {
+				snd_soc_dapm_disable_pin(dapm, "Mic Bias");
+				snd_soc_dapm_sync(dapm);
+				da7219_aad->micbias_resume_enable = true;
+			}
+		}
+	}
+}
+
+void da7219_aad_resume(struct snd_soc_codec *codec)
+{
+	struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
+	struct da7219_aad_priv *da7219_aad = da7219->aad;
+	struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
+
+	if (da7219_aad->jack) {
+		/* Re-enable micbias if previously enabled for 4-pole jack */
+		if (da7219_aad->jack_inserted &&
+		    da7219_aad->micbias_resume_enable) {
+			snd_soc_dapm_force_enable_pin(dapm, "Mic Bias");
+			snd_soc_dapm_sync(dapm);
+			da7219_aad->micbias_resume_enable = false;
+		}
+
+		/* Re-enable jack detection */
+		snd_soc_update_bits(codec, DA7219_ACCDET_CONFIG_1,
+				    DA7219_ACCDET_EN_MASK,
+				    DA7219_ACCDET_EN_MASK);
+	}
+}
+
+
 /*
  * Init/Exit
  */

sound/soc/codecs/da7219-aad.h

@@ -176,8 +176,10 @@
 #define DA7219_AAD_MICBIAS_CHK_DELAY	10
 #define DA7219_AAD_MICBIAS_CHK_RETRIES	5
 
-#define DA7219_AAD_HPTEST_RAMP_FREQ	0x28
-#define DA7219_AAD_HPTEST_PERIOD	65
+#define DA7219_AAD_HPTEST_RAMP_FREQ		0x28
+#define DA7219_AAD_HPTEST_RAMP_FREQ_INT_OSC	0x4D
+#define DA7219_AAD_HPTEST_PERIOD		65
+#define DA7219_AAD_HPTEST_INT_OSC_PATH_DELAY	20
 
 enum da7219_aad_event_regs {
 	DA7219_AAD_IRQ_REG_A = 0,
@@ -199,12 +201,17 @@ struct da7219_aad_priv {
 	struct work_struct hptest_work;
 
 	struct snd_soc_jack *jack;
+	bool micbias_resume_enable;
 	bool jack_inserted;
 };
 
 /* AAD control */
 void da7219_aad_jack_det(struct snd_soc_codec *codec, struct snd_soc_jack *jack);
 
+/* Suspend/Resume */
+void da7219_aad_suspend(struct snd_soc_codec *codec);
+void da7219_aad_resume(struct snd_soc_codec *codec);
+
 /* Init/Exit */
 int da7219_aad_init(struct snd_soc_codec *codec);
 void da7219_aad_exit(struct snd_soc_codec *codec);