Merge tag 'asoc-v4.3-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next

ASoC: Updates for v4.4

Not much core work here, a few small tweaks to interfaces but mainly the
changes here are driver ones.  Highlights include:

 - Updates to the topology userspace interface
 - Big updates to the Renesas support from Morimoto-san
 - Most of the support for Intel Sky Lake systems.
 - New drivers for Asahi Kasei Microdevices AK4613, Allwinnner A10,
   Cirrus Logic WM8998, Dialog DA7219, Nuvoton NAU8825 and Rockchip
   S/PDIF.
 - A new driver for the Atmel Class D speaker drivers

99 files changed, 11572 insertions, 459 deletions

diff --git a/sound/soc/Kconfig b/sound/soc/Kconfig
index 7de792b06007..7ff7d88e46dd 100644
--- a/sound/soc/Kconfig
+++ b/sound/soc/Kconfig
@@ -9,7 +9,6 @@ menuconfig SND_SOC
 	select SND_JACK if INPUT=y || INPUT=SND
 	select REGMAP_I2C if I2C
 	select REGMAP_SPI if SPI_MASTER
-	select SND_COMPRESS_OFFLOAD
 	---help---
 
 	  If you want ASoC support, you should say Y here and also to the
@@ -30,6 +29,10 @@ config SND_SOC_GENERIC_DMAENGINE_PCM
 	bool
 	select SND_DMAENGINE_PCM
 
+config SND_SOC_COMPRESS
+	bool
+	select SND_COMPRESS_OFFLOAD
+
 config SND_SOC_TOPOLOGY
 	bool
 
diff --git a/sound/soc/Makefile b/sound/soc/Makefile
index af0a5714e107..8eb06db32fa0 100644
--- a/sound/soc/Makefile
+++ b/sound/soc/Makefile
@@ -1,5 +1,6 @@
 snd-soc-core-objs := soc-core.o soc-dapm.o soc-jack.o soc-cache.o soc-utils.o
-snd-soc-core-objs += soc-pcm.o soc-compress.o soc-io.o soc-devres.o soc-ops.o
+snd-soc-core-objs += soc-pcm.o soc-io.o soc-devres.o soc-ops.o
+snd-soc-core-$(CONFIG_SND_SOC_COMPRESS) += soc-compress.o
 
 ifneq ($(CONFIG_SND_SOC_TOPOLOGY),)
 snd-soc-core-objs += soc-topology.o
diff --git a/sound/soc/atmel/Kconfig b/sound/soc/atmel/Kconfig
index 1489cd461aec..2d30464b81ce 100644
--- a/sound/soc/atmel/Kconfig
+++ b/sound/soc/atmel/Kconfig
@@ -59,4 +59,13 @@ config SND_AT91_SOC_SAM9X5_WM8731
 	help
 	  Say Y if you want to add support for audio SoC on an
 	  at91sam9x5 based board that is using WM8731 codec.
+
+config SND_ATMEL_SOC_CLASSD
+	tristate "Atmel ASoC driver for boards using CLASSD"
+	depends on ARCH_AT91 || COMPILE_TEST
+	select SND_ATMEL_SOC_DMA
+	select REGMAP_MMIO
+	help
+	  Say Y if you want to add support for Atmel ASoC driver for boards using
+	  CLASSD.
 endif
diff --git a/sound/soc/atmel/Makefile b/sound/soc/atmel/Makefile
index b327e5cc8de3..f6f7db428216 100644
--- a/sound/soc/atmel/Makefile
+++ b/sound/soc/atmel/Makefile
@@ -11,7 +11,9 @@ obj-$(CONFIG_SND_ATMEL_SOC_SSC) += snd-soc-atmel_ssc_dai.o
 snd-soc-sam9g20-wm8731-objs := sam9g20_wm8731.o
 snd-atmel-soc-wm8904-objs := atmel_wm8904.o
 snd-soc-sam9x5-wm8731-objs := sam9x5_wm8731.o
+snd-atmel-soc-classd-objs := atmel-classd.o
 
 obj-$(CONFIG_SND_AT91_SOC_SAM9G20_WM8731) += snd-soc-sam9g20-wm8731.o
 obj-$(CONFIG_SND_ATMEL_SOC_WM8904) += snd-atmel-soc-wm8904.o
 obj-$(CONFIG_SND_AT91_SOC_SAM9X5_WM8731) += snd-soc-sam9x5-wm8731.o
+obj-$(CONFIG_SND_ATMEL_SOC_CLASSD) += snd-atmel-soc-classd.o
diff --git a/sound/soc/atmel/atmel-classd.c b/sound/soc/atmel/atmel-classd.c
new file mode 100644
index 000000000000..8276675730ef
--- /dev/null
+++ b/sound/soc/atmel/atmel-classd.c
@@ -0,0 +1,679 @@
+/* Atmel ALSA SoC Audio Class D Amplifier (CLASSD) driver
+ *
+ * Copyright (C) 2015 Atmel
+ *
+ * Author: Songjun Wu <songjun.wu@atmel.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 or later
+ * as published by the Free Software Foundation.
+ */
+
+#include <linux/of.h>
+#include <linux/clk.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <sound/core.h>
+#include <sound/dmaengine_pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/tlv.h>
+#include "atmel-classd.h"
+
+struct atmel_classd_pdata {
+	bool non_overlap_enable;
+	int non_overlap_time;
+	int pwm_type;
+	const char *card_name;
+};
+
+struct atmel_classd {
+	dma_addr_t phy_base;
+	struct regmap *regmap;
+	struct clk *pclk;
+	struct clk *gclk;
+	struct clk *aclk;
+	int irq;
+	const struct atmel_classd_pdata *pdata;
+};
+
+#ifdef CONFIG_OF
+static const struct of_device_id atmel_classd_of_match[] = {
+	{
+		.compatible = "atmel,sama5d2-classd",
+	}, {
+		/* sentinel */
+	}
+};
+MODULE_DEVICE_TABLE(of, atmel_classd_of_match);
+
+static struct atmel_classd_pdata *atmel_classd_dt_init(struct device *dev)
+{
+	struct device_node *np = dev->of_node;
+	struct atmel_classd_pdata *pdata;
+	const char *pwm_type;
+	int ret;
+
+	if (!np) {
+		dev_err(dev, "device node not found\n");
+		return ERR_PTR(-EINVAL);
+	}
+
+	pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
+	if (!pdata)
+		return ERR_PTR(-ENOMEM);
+
+	ret = of_property_read_string(np, "atmel,pwm-type", &pwm_type);
+	if ((ret == 0) && (strcmp(pwm_type, "diff") == 0))
+		pdata->pwm_type = CLASSD_MR_PWMTYP_DIFF;
+	else
+		pdata->pwm_type = CLASSD_MR_PWMTYP_SINGLE;
+
+	ret = of_property_read_u32(np,
+			"atmel,non-overlap-time", &pdata->non_overlap_time);
+	if (ret)
+		pdata->non_overlap_enable = false;
+	else
+		pdata->non_overlap_enable = true;
+
+	ret = of_property_read_string(np, "atmel,model", &pdata->card_name);
+	if (ret)
+		pdata->card_name = "CLASSD";
+
+	return pdata;
+}
+#else
+static inline struct atmel_classd_pdata *
+atmel_classd_dt_init(struct device *dev)
+{
+	return ERR_PTR(-EINVAL);
+}
+#endif
+
+#define ATMEL_CLASSD_RATES (SNDRV_PCM_RATE_8000 \
+			| SNDRV_PCM_RATE_16000	| SNDRV_PCM_RATE_22050 \
+			| SNDRV_PCM_RATE_32000	| SNDRV_PCM_RATE_44100 \
+			| SNDRV_PCM_RATE_48000	| SNDRV_PCM_RATE_88200 \
+			| SNDRV_PCM_RATE_96000)
+
+static const struct snd_pcm_hardware atmel_classd_hw = {
+	.info			= SNDRV_PCM_INFO_MMAP
+				| SNDRV_PCM_INFO_MMAP_VALID
+				| SNDRV_PCM_INFO_INTERLEAVED
+				| SNDRV_PCM_INFO_RESUME
+				| SNDRV_PCM_INFO_PAUSE,
+	.formats		= (SNDRV_PCM_FMTBIT_S16_LE),
+	.rates			= ATMEL_CLASSD_RATES,
+	.rate_min		= 8000,
+	.rate_max		= 96000,
+	.channels_min		= 2,
+	.channels_max		= 2,
+	.buffer_bytes_max	= 64 * 1024,
+	.period_bytes_min	= 256,
+	.period_bytes_max	= 32 * 1024,
+	.periods_min		= 2,
+	.periods_max		= 256,
+};
+
+#define ATMEL_CLASSD_PREALLOC_BUF_SIZE  (64 * 1024)
+
+/* cpu dai component */
+static int atmel_classd_cpu_dai_startup(struct snd_pcm_substream *substream,
+					struct snd_soc_dai *cpu_dai)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct atmel_classd *dd = snd_soc_card_get_drvdata(rtd->card);
+
+	regmap_write(dd->regmap, CLASSD_THR, 0x0);
+
+	return clk_prepare_enable(dd->pclk);
+}
+
+static void atmel_classd_cpu_dai_shutdown(struct snd_pcm_substream *substream,
+					struct snd_soc_dai *cpu_dai)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct atmel_classd *dd = snd_soc_card_get_drvdata(rtd->card);
+
+	clk_disable_unprepare(dd->pclk);
+}
+
+static const struct snd_soc_dai_ops atmel_classd_cpu_dai_ops = {
+	.startup	= atmel_classd_cpu_dai_startup,
+	.shutdown	= atmel_classd_cpu_dai_shutdown,
+};
+
+static struct snd_soc_dai_driver atmel_classd_cpu_dai = {
+	.playback = {
+		.channels_min	= 2,
+		.channels_max	= 2,
+		.rates		= ATMEL_CLASSD_RATES,
+		.formats	= SNDRV_PCM_FMTBIT_S16_LE,},
+	.ops = &atmel_classd_cpu_dai_ops,
+};
+
+static const struct snd_soc_component_driver atmel_classd_cpu_dai_component = {
+	.name = "atmel-classd",
+};
+
+/* platform */
+static int
+atmel_classd_platform_configure_dma(struct snd_pcm_substream *substream,
+	struct snd_pcm_hw_params *params,
+	struct dma_slave_config *slave_config)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct atmel_classd *dd = snd_soc_card_get_drvdata(rtd->card);
+
+	if (params_physical_width(params) != 16) {
+		dev_err(rtd->platform->dev,
+			"only supports 16-bit audio data\n");
+		return -EINVAL;
+	}
+
+	slave_config->direction		= DMA_MEM_TO_DEV;
+	slave_config->dst_addr		= dd->phy_base + CLASSD_THR;
+	slave_config->dst_addr_width	= DMA_SLAVE_BUSWIDTH_4_BYTES;
+	slave_config->dst_maxburst	= 1;
+	slave_config->src_maxburst	= 1;
+	slave_config->device_fc		= false;
+
+	return 0;
+}
+
+static const struct snd_dmaengine_pcm_config
+atmel_classd_dmaengine_pcm_config = {
+	.prepare_slave_config	= atmel_classd_platform_configure_dma,
+	.pcm_hardware		= &atmel_classd_hw,
+	.prealloc_buffer_size	= ATMEL_CLASSD_PREALLOC_BUF_SIZE,
+};
+
+/* codec */
+static const char * const mono_mode_text[] = {
+	"mix", "sat", "left", "right"
+};
+
+static SOC_ENUM_SINGLE_DECL(classd_mono_mode_enum,
+			CLASSD_INTPMR, CLASSD_INTPMR_MONO_MODE_SHIFT,
+			mono_mode_text);
+
+static const char * const eqcfg_text[] = {
+	"Treble-12dB", "Treble-6dB",
+	"Medium-8dB", "Medium-3dB",
+	"Bass-12dB", "Bass-6dB",
+	"0 dB",
+	"Bass+6dB", "Bass+12dB",
+	"Medium+3dB", "Medium+8dB",
+	"Treble+6dB", "Treble+12dB",
+};
+
+static const unsigned int eqcfg_value[] = {
+	CLASSD_INTPMR_EQCFG_T_CUT_12, CLASSD_INTPMR_EQCFG_T_CUT_6,
+	CLASSD_INTPMR_EQCFG_M_CUT_8, CLASSD_INTPMR_EQCFG_M_CUT_3,
+	CLASSD_INTPMR_EQCFG_B_CUT_12, CLASSD_INTPMR_EQCFG_B_CUT_6,
+	CLASSD_INTPMR_EQCFG_FLAT,
+	CLASSD_INTPMR_EQCFG_B_BOOST_6, CLASSD_INTPMR_EQCFG_B_BOOST_12,
+	CLASSD_INTPMR_EQCFG_M_BOOST_3, CLASSD_INTPMR_EQCFG_M_BOOST_8,
+	CLASSD_INTPMR_EQCFG_T_BOOST_6, CLASSD_INTPMR_EQCFG_T_BOOST_12,
+};
+
+static SOC_VALUE_ENUM_SINGLE_DECL(classd_eqcfg_enum,
+		CLASSD_INTPMR, CLASSD_INTPMR_EQCFG_SHIFT, 0xf,
+		eqcfg_text, eqcfg_value);
+
+static const DECLARE_TLV_DB_SCALE(classd_digital_tlv, -7800, 100, 1);
+
+static const struct snd_kcontrol_new atmel_classd_snd_controls[] = {
+SOC_DOUBLE_TLV("Playback Volume", CLASSD_INTPMR,
+		CLASSD_INTPMR_ATTL_SHIFT, CLASSD_INTPMR_ATTR_SHIFT,
+		78, 1, classd_digital_tlv),
+
+SOC_SINGLE("Deemphasis Switch", CLASSD_INTPMR,
+		CLASSD_INTPMR_DEEMP_SHIFT, 1, 0),
+
+SOC_SINGLE("Mono Switch", CLASSD_INTPMR, CLASSD_INTPMR_MONO_SHIFT, 1, 0),
+
+SOC_SINGLE("Swap Switch", CLASSD_INTPMR, CLASSD_INTPMR_SWAP_SHIFT, 1, 0),
+
+SOC_ENUM("Mono Mode", classd_mono_mode_enum),
+
+SOC_ENUM("EQ", classd_eqcfg_enum),
+};
+
+static const char * const pwm_type[] = {
+	"Single ended", "Differential"
+};
+
+static int atmel_classd_codec_probe(struct snd_soc_codec *codec)
+{
+	struct snd_soc_card *card = snd_soc_codec_get_drvdata(codec);
+	struct atmel_classd *dd = snd_soc_card_get_drvdata(card);
+	const struct atmel_classd_pdata *pdata = dd->pdata;
+	u32 mask, val;
+
+	mask = CLASSD_MR_PWMTYP_MASK;
+	val = pdata->pwm_type << CLASSD_MR_PWMTYP_SHIFT;
+
+	m