1 files changed, 457 insertions, 5 deletions

diff --git a/sound/soc/codecs/rt5682-sdw.c b/sound/soc/codecs/rt5682-sdw.c
index a2d1d3ae1e31..4cecc5ce545c 100644
--- a/sound/soc/codecs/rt5682-sdw.c
+++ b/sound/soc/codecs/rt5682-sdw.c
@@ -14,6 +14,7 @@
 #include <linux/acpi.h>
 #include <linux/gpio.h>
 #include <linux/of_gpio.h>
+#include <linux/pm_runtime.h>
 #include <linux/regulator/consumer.h>
 #include <linux/mutex.h>
 #include <linux/soundwire/sdw.h>
@@ -28,7 +29,461 @@
 #include <sound/tlv.h>
 
 #include "rt5682.h"
-#include "rt5682-sdw.h"
+
+#define RT5682_SDW_ADDR_L			0x3000
+#define RT5682_SDW_ADDR_H			0x3001
+#define RT5682_SDW_DATA_L			0x3004
+#define RT5682_SDW_DATA_H			0x3005
+#define RT5682_SDW_CMD				0x3008
+
+static int rt5682_sdw_read(void *context, unsigned int reg, unsigned int *val)
+{
+	struct device *dev = context;
+	struct rt5682_priv *rt5682 = dev_get_drvdata(dev);
+	unsigned int data_l, data_h;
+
+	regmap_write(rt5682->sdw_regmap, RT5682_SDW_CMD, 0);
+	regmap_write(rt5682->sdw_regmap, RT5682_SDW_ADDR_H, (reg >> 8) & 0xff);
+	regmap_write(rt5682->sdw_regmap, RT5682_SDW_ADDR_L, (reg & 0xff));
+	regmap_read(rt5682->sdw_regmap, RT5682_SDW_DATA_H, &data_h);
+	regmap_read(rt5682->sdw_regmap, RT5682_SDW_DATA_L, &data_l);
+
+	*val = (data_h << 8) | data_l;
+
+	dev_vdbg(dev, "[%s] %04x => %04x\n", __func__, reg, *val);
+
+	return 0;
+}
+
+static int rt5682_sdw_write(void *context, unsigned int reg, unsigned int val)
+{
+	struct device *dev = context;
+	struct rt5682_priv *rt5682 = dev_get_drvdata(dev);
+
+	regmap_write(rt5682->sdw_regmap, RT5682_SDW_CMD, 1);
+	regmap_write(rt5682->sdw_regmap, RT5682_SDW_ADDR_H, (reg >> 8) & 0xff);
+	regmap_write(rt5682->sdw_regmap, RT5682_SDW_ADDR_L, (reg & 0xff));
+	regmap_write(rt5682->sdw_regmap, RT5682_SDW_DATA_H, (val >> 8) & 0xff);
+	regmap_write(rt5682->sdw_regmap, RT5682_SDW_DATA_L, (val & 0xff));
+
+	dev_vdbg(dev, "[%s] %04x <= %04x\n", __func__, reg, val);
+
+	return 0;
+}
+
+static const struct regmap_config rt5682_sdw_indirect_regmap = {
+	.reg_bits = 16,
+	.val_bits = 16,
+	.max_register = RT5682_I2C_MODE,
+	.volatile_reg = rt5682_volatile_register,
+	.readable_reg = rt5682_readable_register,
+	.cache_type = REGCACHE_RBTREE,
+	.reg_defaults = rt5682_reg,
+	.num_reg_defaults = RT5682_REG_NUM,
+	.use_single_read = true,
+	.use_single_write = true,
+	.reg_read = rt5682_sdw_read,
+	.reg_write = rt5682_sdw_write,
+};
+
+struct sdw_stream_data {
+	struct sdw_stream_runtime *sdw_stream;
+};
+
+static int rt5682_set_sdw_stream(struct snd_soc_dai *dai, void *sdw_stream,
+				 int direction)
+{
+	struct sdw_stream_data *stream;
+
+	if (!sdw_stream)
+		return 0;
+
+	stream = kzalloc(sizeof(*stream), GFP_KERNEL);
+	if (!stream)
+		return -ENOMEM;
+
+	stream->sdw_stream = (struct sdw_stream_runtime *)sdw_stream;
+
+	/* Use tx_mask or rx_mask to configure stream tag and set dma_data */
+	if (direction == SNDRV_PCM_STREAM_PLAYBACK)
+		dai->playback_dma_data = stream;
+	else
+		dai->capture_dma_data = stream;
+
+	return 0;
+}
+
+static void rt5682_sdw_shutdown(struct snd_pcm_substream *substream,
+				struct snd_soc_dai *dai)
+{
+	struct sdw_stream_data *stream;
+
+	stream = snd_soc_dai_get_dma_data(dai, substream);
+	snd_soc_dai_set_dma_data(dai, substream, NULL);
+	kfree(stream);
+}
+
+static int rt5682_sdw_hw_params(struct snd_pcm_substream *substream,
+				struct snd_pcm_hw_params *params,
+				struct snd_soc_dai *dai)
+{
+	struct snd_soc_component *component = dai->component;
+	struct rt5682_priv *rt5682 = snd_soc_component_get_drvdata(component);
+	struct sdw_stream_config stream_config;
+	struct sdw_port_config port_config;
+	enum sdw_data_direction direction;
+	struct sdw_stream_data *stream;
+	int retval, port, num_channels;
+	unsigned int val_p = 0, val_c = 0, osr_p = 0, osr_c = 0;
+
+	dev_dbg(dai->dev, "%s %s", __func__, dai->name);
+
+	stream = snd_soc_dai_get_dma_data(dai, substream);
+	if (!stream)
+		return -ENOMEM;
+
+	if (!rt5682->slave)
+		return -EINVAL;
+
+	/* SoundWire specific configuration */
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+		direction = SDW_DATA_DIR_RX;
+		port = 1;
+	} else {
+		direction = SDW_DATA_DIR_TX;
+		port = 2;
+	}
+
+	stream_config.frame_rate = params_rate(params);
+	stream_config.ch_count = params_channels(params);
+	stream_config.bps = snd_pcm_format_width(params_format(params));
+	stream_config.direction = direction;
+
+	num_channels = params_channels(params);
+	port_config.ch_mask = (1 << (num_channels)) - 1;
+	port_config.num = port;
+
+	retval = sdw_stream_add_slave(rt5682->slave, &stream_config,
+				      &port_config, 1, stream->sdw_stream);
+	if (retval) {
+		dev_err(dai->dev, "Unable to configure port\n");
+		return retval;
+	}
+
+	switch (params_rate(params)) {
+	case 48000:
+		val_p = RT5682_SDW_REF_1_48K;
+		val_c = RT5682_SDW_REF_2_48K;
+		break;
+	case 96000:
+		val_p = RT5682_SDW_REF_1_96K;
+		val_c = RT5682_SDW_REF_2_96K;
+		break;
+	case 192000:
+		val_p = RT5682_SDW_REF_1_192K;
+		val_c = RT5682_SDW_REF_2_192K;
+		break;
+	case 32000:
+		val_p = RT5682_SDW_REF_1_32K;
+		val_c = RT5682_SDW_REF_2_32K;
+		break;
+	case 24000:
+		val_p = RT5682_SDW_REF_1_24K;
+		val_c = RT5682_SDW_REF_2_24K;
+		break;
+	case 16000:
+		val_p = RT5682_SDW_REF_1_16K;
+		val_c = RT5682_SDW_REF_2_16K;
+		break;
+	case 12000:
+		val_p = RT5682_SDW_REF_1_12K;
+		val_c = RT5682_SDW_REF_2_12K;
+		break;
+	case 8000:
+		val_p = RT5682_SDW_REF_1_8K;
+		val_c = RT5682_SDW_REF_2_8K;
+		break;
+	case 44100:
+		val_p = RT5682_SDW_REF_1_44K;
+		val_c = RT5682_SDW_REF_2_44K;
+		break;
+	case 88200:
+		val_p = RT5682_SDW_REF_1_88K;
+		val_c = RT5682_SDW_REF_2_88K;
+		break;
+	case 176400:
+		val_p = RT5682_SDW_REF_1_176K;
+		val_c = RT5682_SDW_REF_2_176K;
+		break;
+	case 22050:
+		val_p = RT5682_SDW_REF_1_22K;
+		val_c = RT5682_SDW_REF_2_22K;
+		break;
+	case 11025:
+		val_p = RT5682_SDW_REF_1_11K;
+		val_c = RT5682_SDW_REF_2_11K;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	if (params_rate(params) <= 48000) {
+		osr_p = RT5682_DAC_OSR_D_8;
+		osr_c = RT5682_ADC_OSR_D_8;
+	} else if (params_rate(params) <= 96000) {
+		osr_p = RT5682_DAC_OSR_D_4;
+		osr_c = RT5682_ADC_OSR_D_4;
+	} else {
+		osr_p = RT5682_DAC_OSR_D_2;
+		osr_c = RT5682_ADC_OSR_D_2;
+	}
+
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+		regmap_update_bits(rt5682->regmap, RT5682_SDW_REF_CLK,
+			RT5682_SDW_REF_1_MASK, val_p);
+		regmap_update_bits(rt5682->regmap, RT5682_ADDA_CLK_1,
+			RT5682_DAC_OSR_MASK, osr_p);
+	} else {
+		regmap_update_bits(rt5682->regmap, RT5682_SDW_REF_CLK,
+			RT5682_SDW_REF_2_MASK, val_c);
+		regmap_update_bits(rt5682->regmap, RT5682_ADDA_CLK_1,
+			RT5682_ADC_OSR_MASK, osr_c);
+	}
+
+	return retval;
+}
+
+static int rt5682_sdw_hw_free(struct snd_pcm_substream *substream,
+			      struct snd_soc_dai *dai)
+{
+	struct snd_soc_component *component = dai->component;
+	struct rt5682_priv *rt5682 = snd_soc_component_get_drvdata(component);
+	struct sdw_stream_data *stream =
+		snd_soc_dai_get_dma_data(dai, substream);
+
+	if (!rt5682->slave)
+		return -EINVAL;
+
+	sdw_stream_remove_slave(rt5682->slave, stream->sdw_stream);
+	return 0;
+}
+
+static struct snd_soc_dai_ops rt5682_sdw_ops = {
+	.hw_params	= rt5682_sdw_hw_params,
+	.hw_free	= rt5682_sdw_hw_free,
+	.set_sdw_stream	= rt5682_set_sdw_stream,
+	.shutdown	= rt5682_sdw_shutdown,
+};
+
+static struct snd_soc_dai_driver rt5682_dai[] = {
+	{
+		.name = "rt5682-aif1",
+		.id = RT5682_AIF1,
+		.playback = {
+			.stream_name = "AIF1 Playback",
+			.channels_min = 1,
+			.channels_max = 2,
+			.rates = RT5682_STEREO_RATES,
+			.formats = RT5682_FORMATS,
+		},
+		.capture = {
+			.stream_name = "AIF1 Capture",
+			.channels_min = 1,
+			.channels_max = 2,
+			.rates = RT5682_STEREO_RATES,
+			.formats = RT5682_FORMATS,
+		},
+		.ops = &rt5682_aif1_dai_ops,
+	},
+	{
+		.name = "rt5682-aif2",
+		.id = RT5682_AIF2,
+		.capture = {
+			.stream_name = "AIF2 Capture",
+			.channels_min = 1,
+			.channels_max = 2,
+			.rates = RT5682_STEREO_RATES,
+			.formats = RT5682_FORMATS,
+		},
+		.ops = &rt5682_aif2_dai_ops,
+	},
+	{
+		.name = "rt5682-sdw",
+		.id = RT5682_SDW,
+		.playback = {
+			.stream_name = "SDW Playback",
+			.channels_min = 1,
+			.channels_max = 2,
+			.rates = RT5682_STEREO_RATES,
+			.formats = RT5682_FORMATS,
+		},
+		.capture = {
+			.stream_name = "SDW Capture",
+			.channels_min = 1,
+			.channels_max = 2,
+			.rates = RT5682_STEREO_RATES,
+			.formats = RT5682_FORMATS,
+		},
+		.ops = &rt5682_sdw_ops,
+	},
+};
+
+static int rt5682_sdw_init(struct device *dev, struct regmap *regmap,
+			   struct sdw_slave *slave)
+{
+	struct rt5682_priv *rt5682;
+	int ret;
+
+	rt5682 = devm_kzalloc(dev, sizeof(*rt5682), GFP_KERNEL);
+	if (!rt5682)
+		return -ENOMEM;
+
+	dev_set_drvdata(dev, rt5682);
+	rt5682->slave = slave;
+	rt5682->sdw_regmap = regmap;
+	rt5682->is_sdw = true;
+
+	rt5682->regmap = devm_regmap_init(dev, NULL, dev,
+					  &rt5682_sdw_indirect_regmap);
+	if (IS_ERR(rt5682->regmap)) {
+		ret = PTR_ERR(rt5682->regmap);
+		dev_err(dev, "Failed to allocate register map: %d\n",
+			ret);
+		return ret;
+	}
+
+	/*
+	 * Mark hw_init to false
+	 * HW init will be performed when device reports present
+	 */
+	rt5682->hw_init = false;
+	rt5682->first_hw_init = false;
+
+	mutex_init(&rt5682->calibrate_mutex);
+	INIT_DELAYED_WORK(&rt5682->jack_detect_work,
+		rt5682_jack_detect_handler);
+
+	ret = devm_snd_soc_register_component(dev,
+					      &rt5682_soc_component_dev,
+					      rt5682_dai, ARRAY_SIZE(rt5682_dai));
+	dev_dbg(&slave->dev, "%s\n", __func__);
+
+	return ret;
+}
+
+static int rt5682_io_init(struct device *dev, struct sdw_slave *slave)
+{
+	struct rt5682_priv *rt5682 = dev_get_drvdata(dev);
+	int ret = 0;
+	unsigned int val;
+
+	if (rt5682->hw_init)
+		return 0;
+
+	regmap_read(rt5682->regmap, RT5682_DEVICE_ID, &val);
+	if (val != DEVICE_ID) {
+		dev_err(dev, "Device with ID register %x is not rt5682\n", val);
+		return -ENODEV;
+	}
+
+	/*
+	 * PM runtime is only enabled when a Slave reports as Attached
+	 */
+	if (!rt5682->first_hw_init) {
+		/* set autosuspend parameters */
+		pm_runtime_set_autosuspend_delay(&slave->dev, 3000);
+		pm_runtime_use_autosuspend(&slave->dev);
+
+		/* update count of parent 'active' children */
+		pm_runtime_set_active(&slave->dev);
+
+		/* make sure the device does not suspend immediately */
+		pm_runtime_mark_last_busy(&slave->dev);
+
+		pm_runtime_enable(&slave->dev);
+	}
+
+	pm_runtime_get_noresume(&slave->dev);
+
+	if (rt5682->first_hw_init) {
+		regcache_cache_only(rt5682->regmap, false);
+		regcache_cache_bypass(rt5682->regmap, true);
+	}
+
+	rt5682_calibrate(rt5682);
+
+	if (rt5682->first_hw_init) {
+		regcache_cache_bypass(rt5682->regmap, false);
+		regcache_mark_dirty(rt5682->regmap);
+		regcache_sync(rt5682->regmap);
+
+		/* volatile registers */
+		regmap_update_bits(rt5682->regmap, RT5682_CBJ_CTRL_2,
+			RT5682_EXT_JD_SRC, RT5682_EXT_JD_SRC_MANUAL);
+
+		goto reinit;
+	}
+
+	rt5682_apply_patch_list(rt5682, dev);
+
+	regmap_write(rt5682->regmap, RT5682_DEPOP_1, 0x0000);
+
+	regmap_update_bits(rt5682->regmap, RT5682_PWR_ANLG_1,
+		RT5682_LDO1_DVO_MASK | RT5682_HP_DRIVER_MASK,
+		RT5682_LDO1_DVO_12 | RT5682_HP_DRIVER_5X);
+	regmap_write(rt5682->regmap, RT5682_MICBIAS_2, 0x0380);
+	regmap_write(rt5682->regmap, RT5682_TEST_MODE_CTRL_1, 0x0000);
+	regmap_update_bits(rt5682->regmap, RT5682_BIAS_CUR_CTRL_8,
+		RT5682_HPA_CP_BIAS_CTRL_MASK, RT5682_HPA_CP_BIAS_3UA);
+	regmap_update_bits(rt5682->regmap, RT5682_CHARGE_PUMP_1,
+		RT5682_CP_CLK_HP_MASK, RT5682_CP_CLK_HP_300KHZ);
+	regmap_update_bits(rt5682->regmap, RT5682_HP_CHARGE_PUMP_1,
+		RT5682_PM_HP_MASK, RT5682_PM_HP_HV);
+
+	/* Soundwire */
+	regmap_write(rt5682->regmap, RT5682_PLL2_INTERNAL, 0xa266);
+	regmap_write(rt5682->regmap, RT5682_PLL2_CTRL_1, 0x1700);
+	regmap_write(rt5682->regmap, RT5682_PLL2_CTRL_2, 0x0006);
+	regmap_write(rt5682->regmap, RT5682_PLL2_CTRL_3, 0x2600);
+	regmap_write(rt5682->regmap, RT5682_PLL2_CTRL_4, 0x0c8f);
+	regmap_write(rt5682->regmap, RT5682_PLL_TRACK_2, 0x3000);
+	regmap_write(rt5682->regmap, RT5682_PLL_TRACK_3, 0x4000);
+	regmap_update_bits(rt5682->regmap, RT5682_GLB_CLK,
+		RT5682_SCLK_SRC_MASK | RT5682_PLL2_SRC_MASK,
+		RT5682_SCLK_SRC_PLL2 | RT5682_PLL2_SRC_SDW);
+
+	regmap_update_bits(rt5682->regmap, RT5682_CBJ_CTRL_2,
+		RT5682_EXT_JD_SRC, RT5682_EXT_JD_SRC_MANUAL);
+	regmap_write(rt5682->regmap, RT5682_CBJ_CTRL_1, 0xd042);
+	regmap_update_bits(rt5682->regmap, RT5682_CBJ_CTRL_3,
+		RT5682_CBJ_IN_BUF_EN, RT5682_CBJ_IN_BUF_EN);
+	regmap_update_bits(rt5682->regmap, RT5682_SAR_IL_CMD_1,
+		RT5682_SAR_POW_MASK, RT5682_SAR_POW_EN);
+	regmap_update_bits(rt5682->regmap, RT5682_RC_CLK_CTRL,
+		RT5682_POW_IRQ | RT5682_POW_JDH |
+		RT5682_POW_ANA, RT5682_POW_IRQ |
+		RT5682_POW_JDH | RT5682_POW_ANA);
+	regmap_update_bits(rt5682->regmap, RT5682_PWR_ANLG_2,
+		RT5682_PWR_JDH, RT5682_PWR_JDH);
+	regmap_update_bits(rt5682->regmap, RT5682_IRQ_CTRL_2,
+		RT5682_JD1_EN_MASK | RT5682_JD1_IRQ_MASK,
+		RT5682_JD1_EN | RT5682_JD1_IRQ_PUL);
+
+reinit:
+	mod_delayed_work(system_power_efficient_wq,
+		&rt5682->jack_detect_work, msecs_to_jiffies(250));
+
+	/* Mark Slave initialization complete */
+	rt5682->hw_init = true;
+	rt5682->first_hw_init = true;
+
+	pm_runtime_mark_last_busy(&slave->dev);
+	pm_runtime_put_autosuspend(&slave->dev);
+
+	dev_dbg(&slave->dev, "%s hw_init complete\n", __func__);
+
+	return ret;
+}
 
 static bool rt5682_sdw_readable_register(struct device *dev, unsigned int reg)
 {
@@ -46,7 +501,7 @@ static bool rt5682_sdw_readable_register(struct device *dev, unsigned int reg)
 	}
 }
 
-const struct regmap_config rt5682_sdw_regmap = {
+static const struct regmap_config rt5682_sdw_regmap = {
 	.name = "sdw",
 	.reg_bits = 32,
 	.val_bits = 8,
@@ -241,9 +696,6 @@ static int rt5682_sdw_probe(struct sdw_slave *slave,
 {
 	struct regmap *regmap;
 
-	/* Assign ops */
-	slave->ops = &rt5682_slave_ops;
-
 	/* Regmap Initialization */
 	regmap = devm_regmap_init_sdw(slave, &rt5682_sdw_regmap);
 	if (IS_ERR(regmap))