[PATCH v1 07/10] ASoC: codecs: add wsa881x-i2c amplifier codec driver

From: Alexey Klimov
Date: Fri Nov 01 2024 - 01:34:30 EST

Add support to analog mode of WSA8810/WSA8815 Class-D Smart Speaker
family of amplifiers. Such amplifiers is primarily interfaced with
SoundWire but they also support analog mode which is configurable
by setting one of the pins to high/low. In such case the WSA881X
amplifier is configurable only using i2c.

To have stereo two WSA881X amplifiers are required but mono
configurations are also possible.

Cc: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>
Signed-off-by: Alexey Klimov <alexey.klimov@xxxxxxxxxx>
---
sound/soc/codecs/Kconfig | 11 +
sound/soc/codecs/Makefile | 2 +
sound/soc/codecs/wsa881x-common.h | 19 +
sound/soc/codecs/wsa881x-i2c.c | 1454 +++++++++++++++++++++++++++++
4 files changed, 1486 insertions(+)
create mode 100644 sound/soc/codecs/wsa881x-i2c.c

diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index b8ea8cf73d63..3d7868977262 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -350,6 +350,7 @@ config SND_SOC_ALL_CODECS
imply SND_SOC_WM9712
imply SND_SOC_WM9713
imply SND_SOC_WSA881X
+ imply SND_SOC_WSA881X_I2C
imply SND_SOC_WSA883X
imply SND_SOC_WSA884X
imply SND_SOC_ZL38060
@@ -2484,6 +2485,16 @@ config SND_SOC_WSA881X
This enables support for Qualcomm WSA8810/WSA8815 Class-D
Smart Speaker Amplifier.

+config SND_SOC_WSA881X_I2C
+ tristate "WSA881X Codec - Analog mode"
+ depends on I2C
+ select REGMAP_I2C
+ select SND_SOC_WSA881X_COMMON
+ help
+ This enables support for Qualcomm WSA8810/WSA8815 Class-D Smart
+ Speaker Amplifier that works in analog mode and configurable
+ via I2C.
+
config SND_SOC_WSA883X
tristate "WSA883X Codec"
depends on SOUNDWIRE
diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile
index bc1498cedf08..682bdf63abea 100644
--- a/sound/soc/codecs/Makefile
+++ b/sound/soc/codecs/Makefile
@@ -399,6 +399,7 @@ snd-soc-wm9713-y := wm9713.o
snd-soc-wm-hubs-y := wm_hubs.o
snd-soc-wsa881x-y := wsa881x.o
snd-soc-wsa881x-common-y := wsa881x-common.o
+snd-soc-wsa881x-i2c-y := wsa881x-i2c.o
snd-soc-wsa883x-y := wsa883x.o
snd-soc-wsa884x-y := wsa884x.o
snd-soc-zl38060-y := zl38060.o
@@ -821,6 +822,7 @@ obj-$(CONFIG_SND_SOC_WM_ADSP) += snd-soc-wm-adsp.o
obj-$(CONFIG_SND_SOC_WM_HUBS) += snd-soc-wm-hubs.o
obj-$(CONFIG_SND_SOC_WSA881X) += snd-soc-wsa881x.o
obj-$(CONFIG_SND_SOC_WSA881X_COMMON) += snd-soc-wsa881x-common.o
+obj-$(CONFIG_SND_SOC_WSA881X_I2C) += snd-soc-wsa881x-i2c.o
obj-$(CONFIG_SND_SOC_WSA883X) += snd-soc-wsa883x.o
obj-$(CONFIG_SND_SOC_WSA884X) += snd-soc-wsa884x.o
obj-$(CONFIG_SND_SOC_ZL38060) += snd-soc-zl38060.o
diff --git a/sound/soc/codecs/wsa881x-common.h b/sound/soc/codecs/wsa881x-common.h
index cf8643e1f7f7..1b9c20cd3807 100644
--- a/sound/soc/codecs/wsa881x-common.h
+++ b/sound/soc/codecs/wsa881x-common.h
@@ -2,6 +2,7 @@
#ifndef __WSA881x_COMMON_H__
#define __WSA881x_COMMON_H__

+#include <linux/i2c.h>
#include <linux/soundwire/sdw.h>
#include <sound/soc.h>

@@ -193,6 +194,24 @@ struct wsa881x_priv {
bool port_enable[WSA881X_MAX_SWR_PORTS];
#endif

+#if IS_ENABLED(CONFIG_SND_SOC_WSA881X_I2C)
+ /* i2c interace for analog mode */
+ struct regmap *regmap_analog;
+ /* First client is for digital part, the second is for analog part */
+ struct i2c_client *client[2];
+ struct snd_soc_component *component;
+ struct snd_soc_dai_driver *dai_driver;
+ struct snd_soc_component_driver *driver;
+ struct gpio_desc *mclk_pin;
+ struct clk *wsa_mclk;
+ bool boost_enable;
+ int spk_pa_gain;
+ struct i2c_msg xfer_msg[2];
+ bool regmap_flag;
+ bool wsa_active;
+ int index;
+ int version;
+#endif
struct gpio_desc *sd_n;
/*
* Logical state for SD_N GPIO: high for shutdown, low for enable.
diff --git a/sound/soc/codecs/wsa881x-i2c.c b/sound/soc/codecs/wsa881x-i2c.c
new file mode 100644
index 000000000000..74fa85306ad9
--- /dev/null
+++ b/sound/soc/codecs/wsa881x-i2c.c
@@ -0,0 +1,1454 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2015-2016, 2018-2020, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved.
+ * Copyright (c) 2024, Linaro Limited
+ */
+
+#include <linux/clk.h>
+#include <linux/clk-provider.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/of_gpio.h>
+#include <linux/platform_device.h>
+#include <linux/device.h>
+#include <linux/printk.h>
+#include <linux/bitops.h>
+#include <linux/regulator/consumer.h>
+#include <linux/pm_runtime.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+#include <linux/delay.h>
+#include <linux/i2c.h>
+#include <linux/kernel.h>
+#include <linux/gpio.h>
+#include <linux/regmap.h>
+#include "wsa881x-common.h"
+
+#define I2C_ANALOG_OFFSET 0x36
+#define SPK_GAIN_12DB 4
+
+#define WSA881X_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 |\
+ SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_48000 |\
+ SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000 |\
+ SNDRV_PCM_RATE_384000)
+/* Fractional Rates */
+#define WSA881X_FRAC_RATES (SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_88200 |\
+ SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_352800)
+
+#define WSA881X_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\
+ SNDRV_PCM_FMTBIT_S24_LE |\
+ SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S32_LE)
+
+#define WSA881X_I2C_DRV_NAME "wsa881x_i2c_codec"
+
+#define WSA881X_I2C_SPK0_SLAVE0_ADDR 0x0E
+#define WSA881X_I2C_SPK0_SLAVE1_ADDR 0x44
+#define WSA881X_I2C_SPK1_SLAVE0_ADDR 0x0F
+#define WSA881X_I2C_SPK1_SLAVE1_ADDR 0x45
+#define WSA881X_I2C_SPK0_SLAVE0 0
+#define WSA881X_I2C_SPK1_SLAVE0 1
+
+#define MAX_WSA881X_DEVICE 2
+#define WSA881X_DIGITAL_SLAVE 0
+#define WSA881X_ANALOG_SLAVE 1
+
+enum {
+ WSA881X_1_X = 0,
+ WSA881X_2_0,
+};
+
+#define WSA881X_IS_2_0(ver) ((ver == WSA881X_2_0) ? 1 : 0)
+
+struct reg_default wsa881x_ana_reg_defaults[] = {
+ {WSA881X_CHIP_ID0, 0x00},
+ {WSA881X_CHIP_ID1, 0x00},
+ {WSA881X_CHIP_ID2, 0x00},
+ {WSA881X_CHIP_ID3, 0x02},
+ {WSA881X_BUS_ID, 0x00},
+ {WSA881X_CDC_RST_CTL, 0x00},
+ {WSA881X_CDC_TOP_CLK_CTL, 0x03},
+ {WSA881X_CDC_ANA_CLK_CTL, 0x00},
+ {WSA881X_CDC_DIG_CLK_CTL, 0x00},
+ {WSA881X_CLOCK_CONFIG, 0x00},
+ {WSA881X_ANA_CTL, 0x08},
+ {WSA881X_SWR_RESET_EN, 0x00},
+ {WSA881X_TEMP_DETECT_CTL, 0x01},
+ {WSA881X_TEMP_MSB, 0x00},
+ {WSA881X_TEMP_LSB, 0x00},
+ {WSA881X_TEMP_CONFIG0, 0x00},
+ {WSA881X_TEMP_CONFIG1, 0x00},
+ {WSA881X_CDC_CLIP_CTL, 0x03},
+ {WSA881X_SDM_PDM9_LSB, 0x00},
+ {WSA881X_SDM_PDM9_MSB, 0x00},
+ {WSA881X_CDC_RX_CTL, 0x7E},
+ {WSA881X_DEM_BYPASS_DATA0, 0x00},
+ {WSA881X_DEM_BYPASS_DATA1, 0x00},
+ {WSA881X_DEM_BYPASS_DATA2, 0x00},
+ {WSA881X_DEM_BYPASS_DATA3, 0x00},
+ {WSA881X_OTP_CTRL0, 0x00},
+ {WSA881X_OTP_CTRL1, 0x00},
+ {WSA881X_HDRIVE_CTL_GROUP1, 0x00},
+ {WSA881X_INTR_MODE, 0x00},
+ {WSA881X_INTR_MASK, 0x1F},
+ {WSA881X_INTR_STATUS, 0x00},
+ {WSA881X_INTR_CLEAR, 0x00},
+ {WSA881X_INTR_LEVEL, 0x00},
+ {WSA881X_INTR_SET, 0x00},
+ {WSA881X_INTR_TEST, 0x00},
+ {WSA881X_PDM_TEST_MODE, 0x00},
+ {WSA881X_ATE_TEST_MODE, 0x00},
+ {WSA881X_PIN_CTL_MODE, 0x00},
+ {WSA881X_PIN_CTL_OE, 0x00},
+ {WSA881X_PIN_WDATA_IOPAD, 0x00},
+ {WSA881X_PIN_STATUS, 0x00},
+ {WSA881X_DIG_DEBUG_MODE, 0x00},
+ {WSA881X_DIG_DEBUG_SEL, 0x00},
+ {WSA881X_DIG_DEBUG_EN, 0x00},
+ {WSA881X_SWR_HM_TEST1, 0x08},
+ {WSA881X_SWR_HM_TEST2, 0x00},
+ {WSA881X_TEMP_DETECT_DBG_CTL, 0x00},
+ {WSA881X_TEMP_DEBUG_MSB, 0x00},
+ {WSA881X_TEMP_DEBUG_LSB, 0x00},
+ {WSA881X_SAMPLE_EDGE_SEL, 0x0C},
+ {WSA881X_SPARE_0, 0x00},
+ {WSA881X_SPARE_1, 0x00},
+ {WSA881X_SPARE_2, 0x00},
+ {WSA881X_OTP_REG_0, 0x01},
+ {WSA881X_OTP_REG_1, 0xFF},
+ {WSA881X_OTP_REG_2, 0xC0},
+ {WSA881X_OTP_REG_3, 0xFF},
+ {WSA881X_OTP_REG_4, 0xC0},
+ {WSA881X_OTP_REG_5, 0xFF},
+ {WSA881X_OTP_REG_6, 0xFF},
+ {WSA881X_OTP_REG_7, 0xFF},
+ {WSA881X_OTP_REG_8, 0xFF},
+ {WSA881X_OTP_REG_9, 0xFF},
+ {WSA881X_OTP_REG_10, 0xFF},
+ {WSA881X_OTP_REG_11, 0xFF},
+ {WSA881X_OTP_REG_12, 0xFF},
+ {WSA881X_OTP_REG_13, 0xFF},
+ {WSA881X_OTP_REG_14, 0xFF},
+ {WSA881X_OTP_REG_15, 0xFF},
+ {WSA881X_OTP_REG_16, 0xFF},
+ {WSA881X_OTP_REG_17, 0xFF},
+ {WSA881X_OTP_REG_18, 0xFF},
+ {WSA881X_OTP_REG_19, 0xFF},
+ {WSA881X_OTP_REG_20, 0xFF},
+ {WSA881X_OTP_REG_21, 0xFF},
+ {WSA881X_OTP_REG_22, 0xFF},
+ {WSA881X_OTP_REG_23, 0xFF},
+ {WSA881X_OTP_REG_24, 0x03},
+ {WSA881X_OTP_REG_25, 0x01},
+ {WSA881X_OTP_REG_26, 0x03},
+ {WSA881X_OTP_REG_27, 0x11},
+ {WSA881X_OTP_REG_28, 0xFF},
+ {WSA881X_OTP_REG_29, 0xFF},
+ {WSA881X_OTP_REG_30, 0xFF},
+ {WSA881X_OTP_REG_31, 0xFF},
+ {WSA881X_OTP_REG_63, 0x40},
+ /* WSA881x Analog registers */
+ {WSA881X_BIAS_REF_CTRL, 0x6C},
+ {WSA881X_BIAS_TEST, 0x16},
+ {WSA881X_BIAS_BIAS, 0xF0},
+ {WSA881X_TEMP_OP, 0x00},
+ {WSA881X_TEMP_IREF_CTRL, 0x56},
+ {WSA881X_TEMP_ISENS_CTRL, 0x47},
+ {WSA881X_TEMP_CLK_CTRL, 0x87},
+ {WSA881X_TEMP_TEST, 0x00},
+ {WSA881X_TEMP_BIAS, 0x51},
+ {WSA881X_TEMP_ADC_CTRL, 0x00},
+ {WSA881X_TEMP_DOUT_MSB, 0x00},
+ {WSA881X_TEMP_DOUT_LSB, 0x00},
+ {WSA881X_ADC_EN_MODU_V, 0x00},
+ {WSA881X_ADC_EN_MODU_I, 0x00},
+ {WSA881X_ADC_EN_DET_TEST_V, 0x00},
+ {WSA881X_ADC_EN_DET_TEST_I, 0x00},
+ {WSA881X_ADC_SEL_IBIAS, 0x25},
+ {WSA881X_ADC_EN_SEL_IBIAS, 0x10},
+ {WSA881X_SPKR_DRV_EN, 0x74},
+ {WSA881X_SPKR_DRV_GAIN, 0x01},
+ {WSA881X_SPKR_DAC_CTL, 0x40},
+ {WSA881X_SPKR_DRV_DBG, 0x15},
+ {WSA881X_SPKR_PWRSTG_DBG, 0x00},
+ {WSA881X_SPKR_OCP_CTL, 0xD4},
+ {WSA881X_SPKR_CLIP_CTL, 0x90},
+ {WSA881X_SPKR_BBM_CTL, 0x00},
+ {WSA881X_SPKR_MISC_CTL1, 0x80},
+ {WSA881X_SPKR_MISC_CTL2, 0x00},
+ {WSA881X_SPKR_BIAS_INT, 0x56},
+ {WSA881X_SPKR_PA_INT, 0x54},
+ {WSA881X_SPKR_BIAS_CAL, 0xAC},
+ {WSA881X_SPKR_BIAS_PSRR, 0x54},
+ {WSA881X_SPKR_STATUS1, 0x00},
+ {WSA881X_SPKR_STATUS2, 0x00},
+ {WSA881X_BOOST_EN_CTL, 0x18},
+ {WSA881X_BOOST_CURRENT_LIMIT, 0x7A},
+ {WSA881X_BOOST_PS_CTL, 0xC0},
+ {WSA881X_BOOST_PRESET_OUT1, 0x77},
+ {WSA881X_BOOST_PRESET_OUT2, 0x70},
+ {WSA881X_BOOST_FORCE_OUT, 0x0E},
+ {WSA881X_BOOST_LDO_PROG, 0x16},
+ {WSA881X_BOOST_SLOPE_COMP_ISENSE_FB, 0x71},
+ {WSA881X_BOOST_RON_CTL, 0x0F},
+ {WSA881X_BOOST_LOOP_STABILITY, 0xAD},
+ {WSA881X_BOOST_ZX_CTL, 0x34},
+ {WSA881X_BOOST_START_CTL, 0x23},
+ {WSA881X_BOOST_MISC1_CTL, 0x80},
+ {WSA881X_BOOST_MISC2_CTL, 0x00},
+ {WSA881X_BOOST_MISC3_CTL, 0x00},
+ {WSA881X_BOOST_ATEST_CTL, 0x00},
+ {WSA881X_SPKR_PROT_FE_GAIN, 0x46},
+ {WSA881X_SPKR_PROT_FE_CM_LDO_SET, 0x3B},
+ {WSA881X_SPKR_PROT_FE_ISENSE_BIAS_SET1, 0x8D},
+ {WSA881X_SPKR_PROT_FE_ISENSE_BIAS_SET2, 0x8D},
+ {WSA881X_SPKR_PROT_ATEST1, 0x01},
+ {WSA881X_SPKR_PROT_ATEST2, 0x00},
+ {WSA881X_SPKR_PROT_FE_VSENSE_VCM, 0x8D},
+ {WSA881X_SPKR_PROT_FE_VSENSE_BIAS_SET1, 0x4D},
+ {WSA881X_BONGO_RESRV_REG1, 0x00},
+ {WSA881X_BONGO_RESRV_REG2, 0x00},
+ {WSA881X_SPKR_PROT_SAR, 0x00},
+ {WSA881X_SPKR_STATUS3, 0x00},
+};
+
+struct reg_default wsa881x_ana_reg_defaults_0[] = {
+ {WSA881X_CHIP_ID0, 0x00},
+ {WSA881X_CHIP_ID1, 0x00},
+ {WSA881X_CHIP_ID2, 0x00},
+ {WSA881X_CHIP_ID3, 0x02},
+ {WSA881X_BUS_ID, 0x00},
+ {WSA881X_CDC_RST_CTL, 0x00},
+ {WSA881X_CDC_TOP_CLK_CTL, 0x03},
+ {WSA881X_CDC_ANA_CLK_CTL, 0x00},
+ {WSA881X_CDC_DIG_CLK_CTL, 0x00},
+ {WSA881X_CLOCK_CONFIG, 0x00},
+ {WSA881X_ANA_CTL, 0x08},
+ {WSA881X_SWR_RESET_EN, 0x00},
+ {WSA881X_TEMP_DETECT_CTL, 0x01},
+ {WSA881X_TEMP_MSB, 0x00},
+ {WSA881X_TEMP_LSB, 0x00},
+ {WSA881X_TEMP_CONFIG0, 0x00},
+ {WSA881X_TEMP_CONFIG1, 0x00},
+ {WSA881X_CDC_CLIP_CTL, 0x03},
+ {WSA881X_SDM_PDM9_LSB, 0x00},
+ {WSA881X_SDM_PDM9_MSB, 0x00},
+ {WSA881X_CDC_RX_CTL, 0x7E},
+ {WSA881X_DEM_BYPASS_DATA0, 0x00},
+ {WSA881X_DEM_BYPASS_DATA1, 0x00},
+ {WSA881X_DEM_BYPASS_DATA2, 0x00},
+ {WSA881X_DEM_BYPASS_DATA3, 0x00},
+ {WSA881X_OTP_CTRL0, 0x00},
+ {WSA881X_OTP_CTRL1, 0x00},
+ {WSA881X_HDRIVE_CTL_GROUP1, 0x00},
+ {WSA881X_INTR_MODE, 0x00},
+ {WSA881X_INTR_MASK, 0x1F},
+ {WSA881X_INTR_STATUS, 0x00},
+ {WSA881X_INTR_CLEAR, 0x00},
+ {WSA881X_INTR_LEVEL, 0x00},
+ {WSA881X_INTR_SET, 0x00},
+ {WSA881X_INTR_TEST, 0x00},
+ {WSA881X_PDM_TEST_MODE, 0x00},
+ {WSA881X_ATE_TEST_MODE, 0x00},
+ {WSA881X_PIN_CTL_MODE, 0x00},
+ {WSA881X_PIN_CTL_OE, 0x00},
+ {WSA881X_PIN_WDATA_IOPAD, 0x00},
+ {WSA881X_PIN_STATUS, 0x00},
+ {WSA881X_DIG_DEBUG_MODE, 0x00},
+ {WSA881X_DIG_DEBUG_SEL, 0x00},
+ {WSA881X_DIG_DEBUG_EN, 0x00},
+ {WSA881X_SWR_HM_TEST1, 0x08},
+ {WSA881X_SWR_HM_TEST2, 0x00},
+ {WSA881X_TEMP_DETECT_DBG_CTL, 0x00},
+ {WSA881X_TEMP_DEBUG_MSB, 0x00},
+ {WSA881X_TEMP_DEBUG_LSB, 0x00},
+ {WSA881X_SAMPLE_EDGE_SEL, 0x0C},
+ {WSA881X_SPARE_0, 0x00},
+ {WSA881X_SPARE_1, 0x00},
+ {WSA881X_SPARE_2, 0x00},
+ {WSA881X_OTP_REG_0, 0x01},
+ {WSA881X_OTP_REG_1, 0xFF},
+ {WSA881X_OTP_REG_2, 0xC0},
+ {WSA881X_OTP_REG_3, 0xFF},
+ {WSA881X_OTP_REG_4, 0xC0},
+ {WSA881X_OTP_REG_5, 0xFF},
+ {WSA881X_OTP_REG_6, 0xFF},
+ {WSA881X_OTP_REG_7, 0xFF},
+ {WSA881X_OTP_REG_8, 0xFF},
+ {WSA881X_OTP_REG_9, 0xFF},
+ {WSA881X_OTP_REG_10, 0xFF},
+ {WSA881X_OTP_REG_11, 0xFF},
+ {WSA881X_OTP_REG_12, 0xFF},
+ {WSA881X_OTP_REG_13, 0xFF},
+ {WSA881X_OTP_REG_14, 0xFF},
+ {WSA881X_OTP_REG_15, 0xFF},
+ {WSA881X_OTP_REG_16, 0xFF},
+ {WSA881X_OTP_REG_17, 0xFF},
+ {WSA881X_OTP_REG_18, 0xFF},
+ {WSA881X_OTP_REG_19, 0xFF},
+ {WSA881X_OTP_REG_20, 0xFF},
+ {WSA881X_OTP_REG_21, 0xFF},
+ {WSA881X_OTP_REG_22, 0xFF},
+ {WSA881X_OTP_REG_23, 0xFF},
+ {WSA881X_OTP_REG_24, 0x03},
+ {WSA881X_OTP_REG_25, 0x01},
+ {WSA881X_OTP_REG_26, 0x03},
+ {WSA881X_OTP_REG_27, 0x11},
+ {WSA881X_OTP_REG_28, 0xFF},
+ {WSA881X_OTP_REG_29, 0xFF},
+ {WSA881X_OTP_REG_30, 0xFF},
+ {WSA881X_OTP_REG_31, 0xFF},
+ {WSA881X_OTP_REG_63, 0x40},
+};
+
+struct reg_default wsa881x_ana_reg_defaults_1[] = {
+ {WSA881X_BIAS_REF_CTRL - WSA881X_ANALOG_BASE, 0x6C},
+ {WSA881X_BIAS_TEST - WSA881X_ANALOG_BASE, 0x16},
+ {WSA881X_BIAS_BIAS - WSA881X_ANALOG_BASE, 0xF0},
+ {WSA881X_TEMP_OP - WSA881X_ANALOG_BASE, 0x00},
+ {WSA881X_TEMP_IREF_CTRL - WSA881X_ANALOG_BASE, 0x56},
+ {WSA881X_TEMP_ISENS_CTRL - WSA881X_ANALOG_BASE, 0x47},
+ {WSA881X_TEMP_CLK_CTRL - WSA881X_ANALOG_BASE, 0x87},
+ {WSA881X_TEMP_TEST - WSA881X_ANALOG_BASE, 0x00},
+ {WSA881X_TEMP_BIAS - WSA881X_ANALOG_BASE, 0x51},
+ {WSA881X_TEMP_ADC_CTRL - WSA881X_ANALOG_BASE, 0x00},
+ {WSA881X_TEMP_DOUT_MSB - WSA881X_ANALOG_BASE, 0x00},
+ {WSA881X_TEMP_DOUT_LSB - WSA881X_ANALOG_BASE, 0x00},
+ {WSA881X_ADC_EN_MODU_V - WSA881X_ANALOG_BASE, 0x00},
+ {WSA881X_ADC_EN_MODU_I - WSA881X_ANALOG_BASE, 0x00},
+ {WSA881X_ADC_EN_DET_TEST_V - WSA881X_ANALOG_BASE, 0x00},
+ {WSA881X_ADC_EN_DET_TEST_I - WSA881X_ANALOG_BASE, 0x00},
+ {WSA881X_ADC_SEL_IBIAS - WSA881X_ANALOG_BASE, 0x25},
+ {WSA881X_ADC_EN_SEL_IBIAS - WSA881X_ANALOG_BASE, 0x10},
+ {WSA881X_SPKR_DRV_EN - WSA881X_ANALOG_BASE, 0x74},
+ {WSA881X_SPKR_DRV_GAIN - WSA881X_ANALOG_BASE, 0x01},
+ {WSA881X_SPKR_DAC_CTL - WSA881X_ANALOG_BASE, 0x40},
+ {WSA881X_SPKR_DRV_DBG - WSA881X_ANALOG_BASE, 0x15},
+ {WSA881X_SPKR_PWRSTG_DBG - WSA881X_ANALOG_BASE, 0x00},
+ {WSA881X_SPKR_OCP_CTL - WSA881X_ANALOG_BASE, 0xD4},
+ {WSA881X_SPKR_CLIP_CTL - WSA881X_ANALOG_BASE, 0x90},
+ {WSA881X_SPKR_BBM_CTL - WSA881X_ANALOG_BASE, 0x00},
+ {WSA881X_SPKR_MISC_CTL1 - WSA881X_ANALOG_BASE, 0x80},
+ {WSA881X_SPKR_MISC_CTL2 - WSA881X_ANALOG_BASE, 0x00},
+ {WSA881X_SPKR_BIAS_INT - WSA881X_ANALOG_BASE, 0x56},
+ {WSA881X_SPKR_PA_INT - WSA881X_ANALOG_BASE, 0x54},
+ {WSA881X_SPKR_BIAS_CAL - WSA881X_ANALOG_BASE, 0xAC},
+ {WSA881X_SPKR_BIAS_PSRR - WSA881X_ANALOG_BASE, 0x54},
+ {WSA881X_SPKR_STATUS1 - WSA881X_ANALOG_BASE, 0x00},
+ {WSA881X_SPKR_STATUS2 - WSA881X_ANALOG_BASE, 0x00},
+ {WSA881X_BOOST_EN_CTL - WSA881X_ANALOG_BASE, 0x18},
+ {WSA881X_BOOST_CURRENT_LIMIT - WSA881X_ANALOG_BASE, 0x7A},
+ {WSA881X_BOOST_PS_CTL - WSA881X_ANALOG_BASE, 0xC0},
+ {WSA881X_BOOST_PRESET_OUT1 - WSA881X_ANALOG_BASE, 0x77},
+ {WSA881X_BOOST_PRESET_OUT2 - WSA881X_ANALOG_BASE, 0x70},
+ {WSA881X_BOOST_FORCE_OUT - WSA881X_ANALOG_BASE, 0x0E},
+ {WSA881X_BOOST_LDO_PROG - WSA881X_ANALOG_BASE, 0x16},
+ {WSA881X_BOOST_SLOPE_COMP_ISENSE_FB - WSA881X_ANALOG_BASE, 0x71},
+ {WSA881X_BOOST_RON_CTL - WSA881X_ANALOG_BASE, 0x0F},
+ {WSA881X_BOOST_LOOP_STABILITY - WSA881X_ANALOG_BASE, 0xAD},
+ {WSA881X_BOOST_ZX_CTL - WSA881X_ANALOG_BASE, 0x34},
+ {WSA881X_BOOST_START_CTL - WSA881X_ANALOG_BASE, 0x23},
+ {WSA881X_BOOST_MISC1_CTL - WSA881X_ANALOG_BASE, 0x80},
+ {WSA881X_BOOST_MISC2_CTL - WSA881X_ANALOG_BASE, 0x00},
+ {WSA881X_BOOST_MISC3_CTL - WSA881X_ANALOG_BASE, 0x00},
+ {WSA881X_BOOST_ATEST_CTL - WSA881X_ANALOG_BASE, 0x00},
+ {WSA881X_SPKR_PROT_FE_GAIN - WSA881X_ANALOG_BASE, 0x46},
+ {WSA881X_SPKR_PROT_FE_CM_LDO_SET - WSA881X_ANALOG_BASE, 0x3B},
+ {WSA881X_SPKR_PROT_FE_ISENSE_BIAS_SET1 - WSA881X_ANALOG_BASE, 0x8D},
+ {WSA881X_SPKR_PROT_FE_ISENSE_BIAS_SET2 - WSA881X_ANALOG_BASE, 0x8D},
+ {WSA881X_SPKR_PROT_ATEST1 - WSA881X_ANALOG_BASE, 0x01},
+ {WSA881X_SPKR_PROT_ATEST2 - WSA881X_ANALOG_BASE, 0x00},
+ {WSA881X_SPKR_PROT_FE_VSENSE_VCM - WSA881X_ANALOG_BASE, 0x8D},
+ {WSA881X_SPKR_PROT_FE_VSENSE_BIAS_SET1 - WSA881X_ANALOG_BASE, 0x4D},
+ {WSA881X_BONGO_RESRV_REG1 - WSA881X_ANALOG_BASE, 0x00},
+ {WSA881X_BONGO_RESRV_REG2 - WSA881X_ANALOG_BASE, 0x00},
+ {WSA881X_SPKR_PROT_SAR - WSA881X_ANALOG_BASE, 0x00},
+ {WSA881X_SPKR_STATUS3 - WSA881X_ANALOG_BASE, 0x00},
+};
+
+static const struct reg_sequence wsa881x_rev_2_0_dig[] = {
+ {WSA881X_RESET_CTL, 0x00},
+ {WSA881X_TADC_VALUE_CTL, 0x01},
+ {WSA881X_INTR_MASK, 0x1B},
+ {WSA881X_IOPAD_CTL, 0x00},
+ {WSA881X_OTP_REG_28, 0x3F},
+ {WSA881X_OTP_REG_29, 0x3F},
+ {WSA881X_OTP_REG_30, 0x01},
+ {WSA881X_OTP_REG_31, 0x01},
+};
+
+static const struct reg_sequence wsa881x_rev_2_0_ana[] = {
+ {WSA881X_TEMP_ADC_CTRL, 0x03},
+ {WSA881X_ADC_SEL_IBIAS, 0x45},
+ {WSA881X_SPKR_DRV_GAIN, 0xC1},
+ {WSA881X_SPKR_DAC_CTL, 0x42},
+ {WSA881X_SPKR_BBM_CTL, 0x02},
+ {WSA881X_SPKR_MISC_CTL1, 0x40},
+ {WSA881X_SPKR_MISC_CTL2, 0x07},
+ {WSA881X_SPKR_BIAS_INT, 0x5F},
+ {WSA881X_SPKR_BIAS_PSRR, 0x44},
+ {WSA881X_BOOST_PS_CTL, 0xA0},
+ {WSA881X_BOOST_PRESET_OUT1, 0xB7},
+ {WSA881X_BOOST_LOOP_STABILITY, 0x8D},
+ {WSA881X_SPKR_PROT_ATEST2, 0x02},
+ {WSA881X_BONGO_RESRV_REG1, 0x5E},
+ {WSA881X_BONGO_RESRV_REG2, 0x07},
+};
+
+struct reg_default wsa881x_rev_2_0_regmap_ana[] = {
+ {WSA881X_TEMP_ADC_CTRL - WSA881X_ANALOG_BASE, 0x03},
+ {WSA881X_ADC_SEL_IBIAS - WSA881X_ANALOG_BASE, 0x45},
+ {WSA881X_SPKR_DRV_GAIN - WSA881X_ANALOG_BASE, 0xC1},
+ {WSA881X_SPKR_DAC_CTL - WSA881X_ANALOG_BASE, 0x42},
+ {WSA881X_SPKR_BBM_CTL - WSA881X_ANALOG_BASE, 0x02},
+ {WSA881X_SPKR_MISC_CTL1 - WSA881X_ANALOG_BASE, 0x40},
+ {WSA881X_SPKR_MISC_CTL2 - WSA881X_ANALOG_BASE, 0x07},
+ {WSA881X_SPKR_BIAS_INT - WSA881X_ANALOG_BASE, 0x5F},
+ {WSA881X_SPKR_BIAS_PSRR - WSA881X_ANALOG_BASE, 0x44},
+ {WSA881X_BOOST_PS_CTL - WSA881X_ANALOG_BASE, 0xA0},
+ {WSA881X_BOOST_PRESET_OUT1 - WSA881X_ANALOG_BASE, 0xB7},
+ {WSA881X_BOOST_LOOP_STABILITY - WSA881X_ANALOG_BASE, 0x8D},
+ {WSA881X_SPKR_PROT_ATEST2 - WSA881X_ANALOG_BASE, 0x02},
+ {WSA881X_BONGO_RESRV_REG1 - WSA881X_ANALOG_BASE, 0x5E},
+ {WSA881X_BONGO_RESRV_REG2 - WSA881X_ANALOG_BASE, 0x07},
+};
+
+/**
+ * wsa881x_update_reg_defaults_2_0 - update default values of regs for v2.0
+ *
+ * wsa881x v2.0 has different default values for certain analog and digital
+ * registers compared to v1.x. Therefore, update the values of these registers
+ * with the values from tables defined above for v2.0.
+ */
+static void wsa881x_update_reg_defaults_2_0(void)
+{
+ int i, j;
+
+ for (i = 0; i < ARRAY_SIZE(wsa881x_rev_2_0_dig); i++) {
+ for (j = 0; j < ARRAY_SIZE(wsa881x_ana_reg_defaults); j++)
+ if (wsa881x_ana_reg_defaults[j].reg ==
+ wsa881x_rev_2_0_dig[i].reg)
+ wsa881x_ana_reg_defaults[j].def =
+ wsa881x_rev_2_0_dig[i].def;
+ }
+ for (i = 0; i < ARRAY_SIZE(wsa881x_rev_2_0_ana); i++) {
+ for (j = 0; j < ARRAY_SIZE(wsa881x_ana_reg_defaults); j++)
+ if (wsa881x_ana_reg_defaults[j].reg ==
+ wsa881x_rev_2_0_ana[i].reg)
+ wsa881x_ana_reg_defaults[j].def =
+ wsa881x_rev_2_0_ana[i].def;
+ }
+}
+
+/**
+ * wsa881x_update_regmap_2_0 - update regmap framework with new tables
+ * @regmap: pointer to wsa881x regmap structure
+ * @flag: indicates digital or analog wsa881x slave
+ *
+ * wsa881x v2.0 has some new registers for both analog and digital slaves.
+ * Update the regmap framework with all the new registers.
+ */
+static void wsa881x_update_regmap_2_0(struct regmap *regmap, int flag)
+{
+ u16 ret;
+
+ switch (flag) {
+ case WSA881X_DIGITAL_SLAVE:
+ ret = regmap_register_patch(regmap, wsa881x_rev_2_0_dig,
+ ARRAY_SIZE(wsa881x_rev_2_0_dig));
+ break;
+ case WSA881X_ANALOG_SLAVE:
+ ret = regmap_register_patch(regmap, wsa881x_rev_2_0_ana,
+ ARRAY_SIZE(wsa881x_rev_2_0_ana));
+ break;
+ default:
+ pr_debug("%s: unknown version", __func__);
+ ret = -EINVAL;
+ break;
+ }
+ if (ret)
+ pr_err("%s: failed to update regmap defaults ret=%d\n",
+ __func__, ret);
+}
+
+const struct regmap_config wsa881x_ana_regmap_config[] = {
+ {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .cache_type = REGCACHE_NONE,
+ .reg_defaults = wsa881x_ana_reg_defaults_0,
+ .num_reg_defaults = ARRAY_SIZE(wsa881x_ana_reg_defaults_0),
+ .max_register = WSA881X_SPKR_STATUS3,
+ .volatile_reg = wsa881x_volatile_register,
+ .readable_reg = wsa881x_readable_register,
+ .reg_format_endian = REGMAP_ENDIAN_NATIVE,
+ .val_format_endian = REGMAP_ENDIAN_NATIVE,
+ },
+ {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .cache_type = REGCACHE_NONE,
+ .reg_defaults = wsa881x_ana_reg_defaults_1,
+ .num_reg_defaults = ARRAY_SIZE(wsa881x_ana_reg_defaults_1),
+ .max_register = WSA881X_SPKR_STATUS3,
+ .volatile_reg = wsa881x_volatile_register,
+ .readable_reg = wsa881x_readable_register,
+ .reg_format_endian = REGMAP_ENDIAN_NATIVE,
+ .val_format_endian = REGMAP_ENDIAN_NATIVE,
+ }
+};
+
+static const struct i2c_device_id wsa881x_i2c_id[];
+
+static void wsa881x_reset(struct wsa881x_priv *pdata, bool enable);
+static int wsa881x_startup(struct wsa881x_priv *pdata);
+static void wsa881x_shutdown(struct wsa881x_priv *pdata);
+
+static int delay_array_msec[] = {10, 20, 30, 40, 50};
+
+static const char * const wsa881x_spk_pa_gain_text[] = {
+"POS_13P5_DB", "POS_12_DB", "POS_10P5_DB", "POS_9_DB", "POS_7P5_DB",
+"POS_6_DB", "POS_4P5_DB", "POS_3_DB", "POS_1P5_DB", "POS_0_DB"};
+
+static const struct soc_enum wsa881x_spk_pa_gain_enum[] = {
+ SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(wsa881x_spk_pa_gain_text),
+ wsa881x_spk_pa_gain_text),
+};
+
+static int wsa881x_spk_pa_gain_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *component =
+ snd_soc_kcontrol_component(kcontrol);
+ struct wsa881x_priv *wsa881x =
+ snd_soc_component_get_drvdata(component);
+
+ ucontrol->value.integer.value[0] = wsa881x->spk_pa_gain;
+
+ dev_dbg(component->dev, "spk_pa_gain = %ld\n",
+ ucontrol->value.integer.value[0]);
+ return 0;
+}
+
+static int wsa881x_spk_pa_gain_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *component =
+ snd_soc_kcontrol_component(kcontrol);
+ struct wsa881x_priv *wsa881x =
+ snd_soc_component_get_drvdata(component);
+
+ if (ucontrol->value.integer.value[0] < 0 ||
+ ucontrol->value.integer.value[0] > 0xC) {
+ dev_err(component->dev, "unsupported gain val %ld\n",
+ ucontrol->value.integer.value[0]);
+ return -EINVAL;
+ }
+ wsa881x->spk_pa_gain = ucontrol->value.integer.value[0];
+ dev_dbg(component->dev, "ucontrol->value.integer.value[0] = %ld\n",
+ ucontrol->value.integer.value[0]);
+ return 0;
+}
+
+/* Helpers to figure out which regmap or client contains the register */
+static struct regmap *find_regmap(struct wsa881x_priv *wsa881x, u16 reg)
+{
+ if (reg >= WSA881X_ANALOG_BASE)
+ return wsa881x->regmap_analog;
+ else
+ return wsa881x->regmap;
+}
+
+static int find_client_index(u16 reg)
+{
+ if (reg >= WSA881X_ANALOG_BASE)
+ return WSA881X_ANALOG_SLAVE;
+ else
+ return WSA881X_DIGITAL_SLAVE;
+}
+
+static int wsa881x_i2c_write_device(struct wsa881x_priv *wsa881x,
+ unsigned int reg, unsigned int val)
+{
+ struct regmap *wsa881x_regmap;
+ struct i2c_msg *msg;
+ int bytes = 1;
+ int ret, i, index;
+ u8 reg_addr = 0;
+ u8 data[2];
+
+ if (wsa881x->regmap_flag) {
+ wsa881x_regmap = find_regmap(wsa881x, reg);
+ ret = regmap_write(wsa881x_regmap, reg, val);
+ for (i = 0; ret && i < ARRAY_SIZE(delay_array_msec); i++) {
+ dev_err_ratelimited(wsa881x->dev,
+ "failed writing reg=%x-retry(%d)\n",
+ reg, i);
+ /* retry after delay of increasing order */
+ msleep(delay_array_msec[i]);
+ ret = regmap_write(wsa881x_regmap, reg, val);
+ }
+ if (ret)
+ dev_err_ratelimited(wsa881x->dev,
+ "failed writing reg=%x ret=%d\n",
+ reg, ret);
+ else
+ dev_dbg(wsa881x->dev, "wrote reg=%x val=%x\n",
+ reg, val);
+ } else {
+ index = find_client_index(reg);
+ reg_addr = (u8)reg;
+ msg = &wsa881x->xfer_msg[0];
+ msg->addr = wsa881x->client[index]->addr;
+ msg->len = bytes + 1;
+ msg->flags = 0;
+ data[0] = reg;
+ data[1] = (u8)val;
+ msg->buf = data;
+
+ ret = i2c_transfer(wsa881x->client[index]->adapter,
+ wsa881x->xfer_msg, 1);
+ /* Try again if the write fails */
+ if (ret != 1) {
+ ret = i2c_transfer(wsa881x->client[index]->adapter,
+ wsa881x->xfer_msg, 1);
+ if (ret != 1) {
+ dev_err_ratelimited(wsa881x->dev,
+ "failed i2c transfer\n");
+ return ret;
+ }
+ }
+ dev_dbg(wsa881x->dev, "wrote reg=%x val=%x\n", reg, data[1]);
+ }
+ return ret;
+}
+
+static int wsa881x_i2c_read_device(struct wsa881x_priv *wsa881x,
+ unsigned int reg)
+{
+ struct regmap *wsa881x_regmap;
+ struct i2c_msg *msg;
+ unsigned int val;
+ int ret, i, index;
+ u8 reg_addr = 0;
+ u8 dest[5] = {0};
+
+ if (wsa881x->regmap_flag) {
+
+ wsa881x_regmap = find_regmap(wsa881x, reg);
+ if (!wsa881x_regmap) {
+ dev_err_ratelimited(wsa881x->dev,
+ "invalid register to read\n");
+ return -EINVAL;
+ }
+ ret = regmap_read(wsa881x_regmap, reg, &val);
+ for (i = 0; ret && i < ARRAY_SIZE(delay_array_msec); i++) {
+ dev_err_ratelimited(wsa881x->dev,
+ "failed to read reg=%x-retry(%d)\n",
+ reg, i);
+ /* retry after delay of increasing order */
+ msleep(delay_array_msec[i]);
+ ret = regmap_read(wsa881x_regmap, reg, &val);
+ }
+ if (ret) {
+ dev_err_ratelimited(wsa881x->dev,
+ "failed to read reg=%x ret=%d\n",
+ reg, ret);
+ return ret;
+ }
+ dev_dbg(wsa881x->dev, "read success, reg=%x val=%x\n",
+ reg, val);
+ } else {
+ index = find_client_index(reg);
+ reg_addr = (u8)reg;
+ msg = &wsa881x->xfer_msg[0];
+ msg->addr = wsa881x->client[index]->addr;
+ msg->len = 1;
+ msg->flags = 0;
+ msg->buf = &reg_addr;
+
+ msg = &wsa881x->xfer_msg[1];
+ msg->addr = wsa881x->client[index]->addr;
+ msg->len = 1;
+ msg->flags = I2C_M_RD;
+ msg->buf = dest;
+
+ ret = i2c_transfer(wsa881x->client[index]->adapter,
+ wsa881x->xfer_msg, 2);
+ /* Try again if read fails first time */
+ if (ret != 2) {
+ ret = i2c_transfer(wsa881x->client[index]->adapter,
+ wsa881x->xfer_msg, 2);
+ if (ret != 2) {
+ dev_err_ratelimited(wsa881x->dev,
+ "failed to read reg=%d\n",
+ reg);
+ return ret;
+ }
+ }
+ val = dest[0];
+ }
+ return val;
+}
+
+static unsigned int wsa881x_i2c_read(struct snd_soc_component *component,
+ unsigned int reg)
+{
+ struct wsa881x_priv *wsa881x;
+
+ wsa881x = snd_soc_component_get_drvdata(component);
+ if (!wsa881x->wsa_active)
+ return 0;
+
+ return wsa881x_i2c_read_device(wsa881x, reg);
+}
+
+static int wsa881x_i2c_write(struct snd_soc_component *component,
+ unsigned int reg, unsigned int val)
+{
+ struct wsa881x_priv *wsa881x;
+
+ wsa881x = snd_soc_component_get_drvdata(component);
+ if (!wsa881x->wsa_active)
+ return 0;
+
+ return wsa881x_i2c_write_device(wsa881x, reg, val);
+}
+
+static int wsa881x_i2c_get_client_index(struct i2c_client *client,
+ int *wsa881x_index)
+{
+ int ret = 0;
+
+ switch (client->addr) {
+ case WSA881X_I2C_SPK0_SLAVE0_ADDR:
+ case WSA881X_I2C_SPK0_SLAVE1_ADDR:
+ *wsa881x_index = WSA881X_I2C_SPK0_SLAVE0;
+ break;
+ case WSA881X_I2C_SPK1_SLAVE0_ADDR:
+ case WSA881X_I2C_SPK1_SLAVE1_ADDR:
+ *wsa881x_index = WSA881X_I2C_SPK1_SLAVE0;
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+ return ret;
+}
+
+static int wsa881x_boost_ctrl(struct snd_soc_component *component, bool enable)
+{
+ struct wsa881x_priv *wsa881x =
+ snd_soc_component_get_drvdata(component);
+
+ if (enable) {
+ if (!WSA881X_IS_2_0(wsa881x->version)) {
+ snd_soc_component_update_bits(component,
+ WSA881X_ANA_CTL, 0x01, 0x01);
+ snd_soc_component_update_bits(component,
+ WSA881X_ANA_CTL, 0x04, 0x04);
+ snd_soc_component_update_bits(component,
+ WSA881X_BOOST_PS_CTL,
+ 0x40, 0x00);
+ snd_soc_component_update_bits(component,
+ WSA881X_BOOST_PRESET_OUT1,
+ 0xF0, 0xB0);
+ snd_soc_component_update_bits(component,
+ WSA881X_BOOST_ZX_CTL,
+ 0x20, 0x00);
+ snd_soc_component_update_bits(component,
+ WSA881X_BOOST_EN_CTL,
+ 0x80, 0x80);
+ } else {
+ snd_soc_component_update_bits(component,
+ WSA881X_BOOST_LOOP_STABILITY,
+ 0x03, 0x03);
+ snd_soc_component_update_bits(component,
+ WSA881X_BOOST_MISC2_CTL,
+ 0xFF, 0x14);
+ snd_soc_component_update_bits(component,
+ WSA881X_BOOST_START_CTL,
+ 0x80, 0x80);
+ snd_soc_component_update_bits(component,
+ WSA881X_BOOST_START_CTL,
+ 0x03, 0x00);
+ snd_soc_component_update_bits(component,
+ WSA881X_BOOST_SLOPE_COMP_ISENSE_FB,
+ 0x0C, 0x04);
+ snd_soc_component_update_bits(component,
+ WSA881X_BOOST_SLOPE_COMP_ISENSE_FB,
+ 0x03, 0x00);
+ if (snd_soc_component_read(component, WSA881X_OTP_REG_0))
+ snd_soc_component_update_bits(component,
+ WSA881X_BOOST_PRESET_OUT1,
+ 0xF0, 0x70);
+ else
+ snd_soc_component_update_bits(component,
+ WSA881X_BOOST_PRESET_OUT1,
+ 0xF0, 0xB0);
+ snd_soc_component_update_bits(component,
+ WSA881X_ANA_CTL, 0x03, 0x01);
+ snd_soc_component_update_bits(component,
+ WSA881X_SPKR_DRV_EN,
+ 0x08, 0x08);
+ snd_soc_component_update_bits(component,
+ WSA881X_ANA_CTL, 0x04, 0x04);
+ snd_soc_component_update_bits(component,
+ WSA881X_BOOST_CURRENT_LIMIT,
+ 0x0F, 0x08);
+ snd_soc_component_update_bits(component,
+ WSA881X_BOOST_EN_CTL,
+ 0x80, 0x80);
+ }
+ /* For WSA8810, start-up time is 1500us as per qcrg sequence */
+ usleep_range(1500, 1510);
+ } else {
+ /* ENSURE: Class-D amp is shutdown. CLK is still on */
+ snd_soc_component_update_bits(component, WSA881X_BOOST_EN_CTL,
+ 0x80, 0x00);
+ /* boost settle time is 1500us as per qcrg sequence */
+ usleep_range(1500, 1510);
+ }
+ return 0;
+}
+
+static void wsa881x_bandgap_ctrl(struct snd_soc_component *component,
+ bool enable)
+{
+ dev_dbg(component->dev, "%s: enable:%d\n", __func__, enable);
+
+ if (enable) {
+ snd_soc_component_update_bits(component, WSA881X_TEMP_OP,
+ 0x08, 0x08);
+ /* 400usec sleep is needed as per HW requirement */
+ usleep_range(400, 410);
+ snd_soc_component_update_bits(component, WSA881X_TEMP_OP,
+ 0x04, 0x04);
+ } else {
+ snd_soc_component_update_bits(component, WSA881X_TEMP_OP,
+ 0x04, 0x00);
+ snd_soc_component_update_bits(component, WSA881X_TEMP_OP,
+ 0x08, 0x00);
+ }
+}
+
+static void wsa881x_clk_ctrl(struct snd_soc_component *component, bool enable)
+{
+ struct wsa881x_priv *wsa881x =
+ snd_soc_component_get_drvdata(component);
+
+ dev_dbg(component->dev, "%s:ss enable:%d\n", __func__, enable);
+
+ if (enable) {
+ snd_soc_component_write(component,
+ WSA881X_CDC_RST_CTL, 0x02);
+ snd_soc_component_write(component,
+ WSA881X_CDC_RST_CTL, 0x03);
+ snd_soc_component_write(component,
+ WSA881X_CLOCK_CONFIG, 0x01);
+
+ snd_soc_component_write(component,
+ WSA881X_CDC_DIG_CLK_CTL, 0x01);
+ snd_soc_component_write(component,
+ WSA881X_CDC_ANA_CLK_CTL, 0x01);
+ } else {
+ snd_soc_component_write(component,
+ WSA881X_CDC_ANA_CLK_CTL, 0x00);
+ snd_soc_component_write(component,
+ WSA881X_CDC_DIG_CLK_CTL, 0x00);
+ if (WSA881X_IS_2_0(wsa881x->version))
+ snd_soc_component_update_bits(component,
+ WSA881X_CDC_TOP_CLK_CTL, 0x01, 0x00);
+ }
+}
+
+static int wsa881x_rdac_ctrl(struct snd_soc_component *component, bool enable)
+{
+ struct wsa881x_priv *wsa881x =
+ snd_soc_component_get_drvdata(component);
+
+ dev_dbg(component->dev, "%s: enable:%d\n", __func__, enable);
+ if (enable) {
+ snd_soc_component_update_bits(component,
+ WSA881X_ANA_CTL, 0x08, 0x00);
+ snd_soc_component_update_bits(component,
+ WSA881X_SPKR_DRV_GAIN, 0x08, 0x08);
+ snd_soc_component_update_bits(component,
+ WSA881X_SPKR_DAC_CTL, 0x20, 0x20);
+ snd_soc_component_update_bits(component,
+ WSA881X_SPKR_DAC_CTL, 0x20, 0x00);
+ snd_soc_component_update_bits(component,
+ WSA881X_SPKR_DAC_CTL, 0x40, 0x40);
+ snd_soc_component_update_bits(component,
+ WSA881X_SPKR_DAC_CTL, 0x80, 0x80);
+ if (WSA881X_IS_2_0(wsa881x->version)) {
+ snd_soc_component_update_bits(component,
+ WSA881X_SPKR_BIAS_CAL, 0x01, 0x01);
+ snd_soc_component_update_bits(component,
+ WSA881X_SPKR_OCP_CTL, 0x30, 0x30);
+ snd_soc_component_update_bits(component,
+ WSA881X_SPKR_OCP_CTL, 0x0C, 0x00);
+ }
+ snd_soc_component_update_bits(component,
+ WSA881X_SPKR_DRV_GAIN, 0xF0, 0x40);
+ snd_soc_component_update_bits(component,
+ WSA881X_SPKR_MISC_CTL1, 0x01, 0x01);
+ } else {
+ /* Ensure class-D amp is off */
+ snd_soc_component_update_bits(component,
+ WSA881X_SPKR_DAC_CTL, 0x80, 0x00);
+ }
+ return 0;
+}
+
+static int wsa881x_spkr_pa_ctrl(struct snd_soc_component *component,
+ bool enable)
+{
+ struct wsa881x_priv *wsa881x =
+ snd_soc_component_get_drvdata(component);
+
+ dev_dbg(component->dev, "%s:enable:%d\n", __func__, enable);
+ if (enable) {
+ /*
+ * Ensure: Boost is enabled and stable, Analog input is up
+ * and outputting silence
+ */
+ if (!WSA881X_IS_2_0(wsa881x->version)) {
+ snd_soc_component_update_bits(component,
+ WSA881X_ADC_EN_DET_TEST_I,
+ 0xFF, 0x01);
+ snd_soc_component_update_bits(component,
+ WSA881X_ADC_EN_MODU_V,
+ 0x02, 0x02);
+ snd_soc_component_update_bits(component,
+ WSA881X_ADC_EN_DET_TEST_V,
+ 0xFF, 0x10);
+ snd_soc_component_update_bits(component,
+ WSA881X_SPKR_PWRSTG_DBG,
+ 0xA0, 0xA0);
+ snd_soc_component_update_bits(component,
+ WSA881X_SPKR_DRV_EN,
+ 0x80, 0x80);
+ usleep_range(700, 710);
+ snd_soc_component_update_bits(component,
+ WSA881X_SPKR_PWRSTG_DBG,
+ 0x00, 0x00);
+ snd_soc_component_update_bits(component,
+ WSA881X_ADC_EN_DET_TEST_V,
+ 0xFF, 0x00);
+ snd_soc_component_update_bits(component,
+ WSA881X_ADC_EN_MODU_V,
+ 0x02, 0x00);
+ snd_soc_component_update_bits(component,
+ WSA881X_ADC_EN_DET_TEST_I,
+ 0xFF, 0x00);
+ } else
+ snd_soc_component_update_bits(component,
+ WSA881X_SPKR_DRV_EN, 0x80, 0x80);
+ /* add 1000us delay as per qcrg */
+ usleep_range(1000, 1010);
+ snd_soc_component_update_bits(component,
+ WSA881X_SPKR_DRV_EN, 0x01, 0x01);
+ if (WSA881X_IS_2_0(wsa881x->version))
+ snd_soc_component_update_bits(component,
+ WSA881X_SPKR_BIAS_CAL,
+ 0x01, 0x00);
+ usleep_range(1000, 1010);
+ snd_soc_component_update_bits(component,
+ WSA881X_SPKR_DRV_GAIN,
+ 0xF0, (wsa881x->spk_pa_gain << 4));
+ } else {
+ /*
+ * Ensure: Boost is still on, Stream from Analog input and
+ * Speaker Protection has been stopped and input is at 0V
+ */
+ if (WSA881X_IS_2_0(wsa881x->version)) {
+ snd_soc_component_update_bits(component,
+ WSA881X_SPKR_BIAS_CAL,
+ 0x01, 0x01);
+ usleep_range(1000, 1010);
+ snd_soc_component_update_bits(component,
+ WSA881X_SPKR_BIAS_CAL,
+ 0x01, 0x00);
+ msleep(20);
+ snd_soc_component_update_bits(component,
+ WSA881X_ANA_CTL, 0x03, 0x00);
+ usleep_range(200, 210);
+ }
+ snd_soc_component_update_bits(component,
+ WSA881X_SPKR_DRV_EN, 0x80, 0x00);
+ }
+ return 0;
+}
+
+static int wsa881x_get_boost(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+
+ struct snd_soc_component *component =
+ snd_soc_kcontrol_component(kcontrol);
+ struct wsa881x_priv *wsa881x =
+ snd_soc_component_get_drvdata(component);
+
+ ucontrol->value.integer.value[0] = wsa881x->boost_enable;
+ return 0;
+}
+
+static int wsa881x_set_boost(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *component =
+ snd_soc_kcontrol_component(kcontrol);
+ struct wsa881x_priv *wsa881x =
+ snd_soc_component_get_drvdata(component);
+ int value = ucontrol->value.integer.value[0];
+
+ dev_dbg(component->dev, "Boost enable current %d, new %d\n",
+ wsa881x->boost_enable, value);
+
+ wsa881x->boost_enable = value;
+ return 0;
+}
+
+static const struct snd_kcontrol_new wsa881x_snd_controls[] = {
+ SOC_SINGLE_EXT("BOOST Switch", SND_SOC_NOPM, 0, 1, 0,
+ wsa881x_get_boost, wsa881x_set_boost),
+
+ SOC_ENUM_EXT("WSA_SPK PA Gain", wsa881x_spk_pa_gain_enum[0],
+ wsa881x_spk_pa_gain_get, wsa881x_spk_pa_gain_put),
+};
+
+static const char * const rdac_text[] = {
+ "ZERO", "Switch",
+};
+
+static const struct soc_enum rdac_enum =
+ SOC_ENUM_SINGLE(SND_SOC_NOPM, 0, ARRAY_SIZE(rdac_text), rdac_text);
+
+static const struct snd_kcontrol_new rdac_mux[] = {
+ SOC_DAPM_ENUM("RDAC", rdac_enum)
+};
+
+static int wsa881x_rdac_event(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol, int event)
+{
+ struct snd_soc_component *component =
+ snd_soc_dapm_to_component(w->dapm);
+ struct wsa881x_priv *wsa881x =
+ snd_soc_component_get_drvdata(component);
+ int ret = 0;
+
+ dev_dbg(component->dev, "%s: %s %d boost %d\n",
+ __func__, w->name, event, wsa881x->boost_enable);
+
+ switch (event) {
+ case SND_SOC_DAPM_PRE_PMU:
+ ret = wsa881x_startup(wsa881x);
+ if (ret) {
+ dev_err(component->dev,
+ "wsa startup failed ret: %d", ret);
+ return ret;
+ }
+ wsa881x_clk_ctrl(component, true);
+ snd_soc_component_update_bits(component, WSA881X_SPKR_DAC_CTL,
+ 0x02, 0x02);
+ if (!WSA881X_IS_2_0(wsa881x->version))
+ snd_soc_component_update_bits(component,
+ WSA881X_BIAS_REF_CTRL,
+ 0x0F, 0x08);
+ wsa881x_bandgap_ctrl(component, true);
+ if (!WSA881X_IS_2_0(wsa881x->version))
+ snd_soc_component_update_bits(component,
+ WSA881X_SPKR_BBM_CTL,
+ 0x02, 0x02);
+ snd_soc_component_update_bits(component, WSA881X_SPKR_MISC_CTL1,
+ 0xC0, 0x80);
+ snd_soc_component_update_bits(component, WSA881X_SPKR_MISC_CTL1,
+ 0x06, 0x06);
+ if (!WSA881X_IS_2_0(wsa881x->version)) {
+ snd_soc_component_update_bits(component,
+ WSA881X_SPKR_MISC_CTL2,
+ 0x04, 0x04);
+ snd_soc_component_update_bits(component,
+ WSA881X_SPKR_BIAS_INT,
+ 0x09, 0x09);
+ }
+ snd_soc_component_update_bits(component, WSA881X_SPKR_PA_INT,
+ 0xF0, 0x20);
+ if (WSA881X_IS_2_0(wsa881x->version))
+ snd_soc_component_update_bits(component,
+ WSA881X_SPKR_PA_INT,
+ 0x0E, 0x0E);
+ if (wsa881x->boost_enable)
+ wsa881x_boost_ctrl(component, true);
+ break;
+ case SND_SOC_DAPM_POST_PMU:
+ wsa881x_rdac_ctrl(component, true);
+ break;
+ case SND_SOC_DAPM_PRE_PMD:
+ wsa881x_rdac_ctrl(component, false);
+ break;
+ case SND_SOC_DAPM_POST_PMD:
+ if (wsa881x->boost_enable)
+ wsa881x_boost_ctrl(component, false);
+ wsa881x_clk_ctrl(component, false);
+ wsa881x_bandgap_ctrl(component, false);
+ wsa881x_shutdown(wsa881x);
+
+ break;
+ default:
+ dev_err(component->dev, "invalid event:%d\n", event);
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static int wsa881x_spkr_pa_event(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol, int event)
+{
+ struct snd_soc_component *component =
+ snd_soc_dapm_to_component(w->dapm);
+
+ dev_dbg(component->dev, "%s: %s %d\n", __func__, w->name, event);
+
+ switch (event) {
+ case SND_SOC_DAPM_PRE_PMU:
+ snd_soc_component_update_bits(component, WSA881X_SPKR_OCP_CTL,
+ 0xC0, 0x80);
+ break;
+ case SND_SOC_DAPM_POST_PMU:
+ wsa881x_spkr_pa_ctrl(component, true);
+ break;
+ case SND_SOC_DAPM_PRE_PMD:
+ wsa881x_spkr_pa_ctrl(component, false);
+ break;
+ case SND_SOC_DAPM_POST_PMD:
+ snd_soc_component_update_bits(component, WSA881X_SPKR_OCP_CTL,
+ 0xC0, 0xC0);
+ break;
+ default:
+ dev_err(component->dev, "invalid event:%d\n", event);
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static const struct snd_soc_dapm_widget wsa881x_dapm_widgets[] = {
+ SND_SOC_DAPM_INPUT("WSA_IN"),
+
+ SND_SOC_DAPM_DAC_E("RDAC Analog", NULL, SND_SOC_NOPM, 0, 0,
+ wsa881x_rdac_event,
+ SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
+ SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD),
+
+ SND_SOC_DAPM_MUX("WSA_RDAC", SND_SOC_NOPM, 0, 0,
+ rdac_mux),
+
+ SND_SOC_DAPM_PGA_S("WSA_SPKR PGA", 1, SND_SOC_NOPM, 0, 0,
+ wsa881x_spkr_pa_event,
+ SND_SOC_DAPM_PRE_PMU |
+ SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD |
+ SND_SOC_DAPM_POST_PMD),
+
+ SND_SOC_DAPM_OUTPUT("WSA_SPKR"),
+};
+
+static const struct snd_soc_dapm_route wsa881x_audio_map[] = {
+ {"WSA_RDAC", "Switch", "WSA_IN"},
+ {"RDAC Analog", NULL, "WSA_RDAC"},
+ {"WSA_SPKR PGA", NULL, "RDAC Analog"},
+ {"WSA_SPKR", NULL, "WSA_SPKR PGA"},
+};
+
+static int wsa881x_startup(struct wsa881x_priv *wsa881x)
+{
+ int ret;
+
+ gpiod_direction_output(wsa881x->mclk_pin, 1);
+ ret = clk_prepare_enable(wsa881x->wsa_mclk);
+ if (ret) {
+ dev_err(wsa881x->dev, "MCLK enable failed\n");
+ return ret;
+ }
+ clk_set_rate(wsa881x->wsa_mclk, 9600000);
+
+ wsa881x_reset(wsa881x, true);
+ return 0;
+}
+
+static void wsa881x_shutdown(struct wsa881x_priv *wsa881x)
+{
+ wsa881x_reset(wsa881x, false);
+
+ if (__clk_is_enabled(wsa881x->wsa_mclk))
+ clk_disable_unprepare(wsa881x->wsa_mclk);
+}
+
+static int wsa881x_probe(struct snd_soc_component *component)
+{
+ struct wsa881x_priv *wsa881x = snd_soc_component_get_drvdata(component);
+
+ wsa881x->component = component;
+ wsa881x->spk_pa_gain = SPK_GAIN_12DB;
+
+ return 0;
+}
+
+static const struct snd_soc_dai_ops wsa881x_dai_ops = {
+ .set_stream = wsa881x_set_stream,
+ .mute_stream = wsa881x_digital_mute,
+ .mute_unmute_on_trigger = true,
+};
+
+static const struct snd_soc_component_driver soc_codec_dev_wsa881x = {
+ .probe = wsa881x_probe,
+ .read = wsa881x_i2c_read,
+ .write = wsa881x_i2c_write,
+ .controls = wsa881x_snd_controls,
+ .num_controls = ARRAY_SIZE(wsa881x_snd_controls),
+ .dapm_widgets = wsa881x_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(wsa881x_dapm_widgets),
+ .dapm_routes = wsa881x_audio_map,
+ .num_dapm_routes = ARRAY_SIZE(wsa881x_audio_map),
+};
+
+static struct snd_soc_dai_driver wsa_dai[] = {
+ {
+ .name = "wsa_rx0",
+ .id = 0,
+ .playback = {
+ .stream_name = "",
+ .rates = WSA881X_RATES | WSA881X_FRAC_RATES,
+ .formats = WSA881X_FORMATS,
+ .rate_max = 384000,
+ .rate_min = 8000,
+ .channels_min = 1,
+ .channels_max = 1,
+ },
+ .ops = &wsa881x_dai_ops,
+ },
+};
+
+static void wsa881x_reset(struct wsa881x_priv *wsa881x, bool enable)
+{
+ if (enable) {
+ wsa881x->wsa_active = true;
+ wsa881x_init_common(wsa881x);
+
+ } else
+ wsa881x->wsa_active = false;
+}
+
+static int check_wsa881x_presence(struct wsa881x_priv *wsa881x)
+{
+ struct i2c_client *client = wsa881x->client[WSA881X_DIGITAL_SLAVE];
+ int ret;
+
+ ret = wsa881x_i2c_read_device(wsa881x, WSA881X_CDC_RST_CTL);
+ if (ret < 0) {
+ dev_err(&client->dev, "failed to read from addr=%x\n",
+ client->addr);
+ return ret;
+ }
+
+ ret = wsa881x_i2c_write_device(wsa881x, WSA881X_CDC_RST_CTL, 0x01);
+ if (ret < 0) {
+ dev_err(&client->dev, "failed write addr=%x reg:0x5 val:0x1\n",
+ client->addr);
+ return ret;
+ }
+
+ /* allow 20ms before trigger next write to verify wsa881x presence */
+ msleep(20);
+ ret = wsa881x_i2c_write_device(wsa881x, WSA881X_CDC_RST_CTL, 0x00);
+ if (ret < 0) {
+ dev_err(&client->dev, "failed write addr=%x reg:0x5 val:0x0\n",
+ client->addr);
+ return ret;
+ }
+ return ret;
+}
+
+static int wsa881x_i2c_probe(struct i2c_client *client)
+{
+ struct device *dev = &client->dev;
+ struct wsa881x_priv *wsa881x;
+ int wsa881x_index = 0;
+ int ret;
+
+ ret = wsa881x_probe_common(&wsa881x, dev);
+ if (ret)
+ return ret;
+
+ ret = wsa881x_i2c_get_client_index(client, &wsa881x_index);
+ if (ret) {
+ dev_err(dev, "get codec I2C client failed\n");
+ return ret;
+ }
+ wsa881x->index = wsa881x_index;
+
+ wsa881x->mclk_pin = devm_gpiod_get(dev, "mclk",
+ GPIOD_FLAGS_BIT_NONEXCLUSIVE);
+ if (IS_ERR(wsa881x->mclk_pin))
+ dev_err_probe(dev, PTR_ERR(wsa881x->mclk_pin),
+ "MCLK GPIO not found\n");
+
+ wsa881x->wsa_mclk = devm_clk_get(&client->dev, "wsa_mclk");
+ if (IS_ERR(wsa881x->wsa_mclk))
+ return dev_err_probe(dev, PTR_ERR(wsa881x->wsa_mclk),
+ "failed to get wsa_mclk\n");
+ clk_set_rate(wsa881x->wsa_mclk, 9600000);
+
+ wsa881x->regmap = devm_regmap_init_i2c(client,
+ &wsa881x_ana_regmap_config[WSA881X_DIGITAL_SLAVE]);
+ if (IS_ERR(wsa881x->regmap)) {
+ dev_err(dev, "digital regmap init failed %d\n", ret);
+ return PTR_ERR(wsa881x->regmap);
+ }
+ regcache_cache_bypass(wsa881x->regmap, true);
+
+ wsa881x_reset(wsa881x, true);
+
+ wsa881x->client[WSA881X_DIGITAL_SLAVE] = client;
+ ret = check_wsa881x_presence(wsa881x);
+ if (ret < 0) {
+ dev_err(&client->dev,
+ "failed to ping wsa with addr:%x, ret = %d\n",
+ client->addr, ret);
+ return -ENODEV;
+ }
+
+ wsa881x->version = wsa881x_i2c_read_device(wsa881x, WSA881X_CHIP_ID1);
+ if (wsa881x->version == WSA881X_2_0) {
+ wsa881x_update_reg_defaults_2_0();
+ wsa881x_update_regmap_2_0(wsa881x->regmap,
+ WSA881X_DIGITAL_SLAVE);
+ }
+
+ dev_dbg(dev, "i2c addr=%x, index = %d\n", client->addr, wsa881x_index);
+ /*
+ * If we reached this point, then device is present and we're good to
+ * go to initialise analog part of codec
+ */
+ wsa881x->client[WSA881X_ANALOG_SLAVE] =
+ devm_i2c_new_dummy_device(&client->dev, client->adapter,
+ client->addr + I2C_ANALOG_OFFSET);
+ if (IS_ERR(wsa881x->client[WSA881X_ANALOG_SLAVE])) {
+ dev_err(dev,
+ "failed to register i2c device for analog part\n");
+ return PTR_ERR(wsa881x->client[WSA881X_ANALOG_SLAVE]);
+ }
+
+ wsa881x->regmap_analog = devm_regmap_init_i2c(wsa881x->client[1],
+ &wsa881x_ana_regmap_config[WSA881X_ANALOG_SLAVE]);
+ if (IS_ERR(wsa881x->regmap_analog)) {
+ dev_err(dev, "analog regmap init failed %d\n", ret);
+ return PTR_ERR(wsa881x->regmap_analog);
+ }
+ regcache_cache_bypass(wsa881x->regmap_analog, true);
+ wsa881x->client[WSA881X_ANALOG_SLAVE]->dev.platform_data = wsa881x;
+ i2c_set_clientdata(wsa881x->client[WSA881X_ANALOG_SLAVE], wsa881x);
+ wsa881x->regmap_flag = true;
+ if (wsa881x->version == WSA881X_2_0)
+ wsa881x_update_regmap_2_0(wsa881x->regmap_analog,
+ WSA881X_ANALOG_SLAVE);
+ /* finished initialising analog part */
+
+ wsa881x->driver = devm_kzalloc(dev, sizeof(*wsa881x->driver),
+ GFP_KERNEL);
+ if (!wsa881x->driver)
+ return -ENOMEM;
+
+ memcpy(wsa881x->driver, &soc_codec_dev_wsa881x,
+ sizeof(*wsa881x->driver));
+ wsa881x->dai_driver = devm_kzalloc(dev,
+ sizeof(struct snd_soc_dai_driver),
+ GFP_KERNEL);
+ if (!wsa881x->dai_driver)
+ return -ENOMEM;
+ memcpy(wsa881x->dai_driver, wsa_dai, sizeof(struct snd_soc_dai_driver));
+
+ wsa881x->driver->name = devm_kasprintf(dev, GFP_KERNEL,
+ "wsa-codec%d", wsa881x_index);
+ if (!wsa881x->driver->name)
+ return -ENOMEM;
+
+ wsa881x->dai_driver->name = devm_kasprintf(dev, GFP_KERNEL,
+ "wsa_rx%d", wsa881x_index);
+ if (!wsa881x->dai_driver->name)
+ return -ENOMEM;
+
+ wsa881x->dai_driver->playback.stream_name = devm_kasprintf(dev,
+ GFP_KERNEL, "WSA881X_AIF%d Playback", wsa881x_index);
+ if (!wsa881x->dai_driver->playback.stream_name)
+ return -ENOMEM;
+
+ return devm_snd_soc_register_component(dev,
+ wsa881x->driver,
+ wsa881x->dai_driver,
+ ARRAY_SIZE(wsa_dai));
+}
+
+static int __maybe_unused wsa881x_i2c_suspend(struct device *dev)
+{
+ struct wsa881x_priv *wsa881x = dev_get_drvdata(dev);
+
+ gpiod_direction_output(wsa881x->sd_n, wsa881x->sd_n_val);
+ return 0;
+}
+
+static int __maybe_unused wsa881x_i2c_resume(struct device *dev)
+{
+ struct wsa881x_priv *wsa881x = dev_get_drvdata(dev);
+
+ gpiod_direction_output(wsa881x->sd_n, !wsa881x->sd_n_val);
+ return 0;
+}
+
+static const struct dev_pm_ops wsa881x_i2c_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(wsa881x_i2c_suspend, wsa881x_i2c_resume)
+};
+
+static const struct i2c_device_id wsa881x_i2c_id[] = {
+ {"wsa881x-i2c-dev", WSA881X_I2C_SPK0_SLAVE0_ADDR},
+ {"wsa881x-i2c-dev", WSA881X_I2C_SPK1_SLAVE0_ADDR},
+ {}
+};
+
+MODULE_DEVICE_TABLE(i2c, wsa881x_i2c_id);
+
+static const struct of_device_id wsa881x_i2c_driver_table[] = {
+ {.compatible = "qcom,qrb4210-wsa881x-i2c-codec"},
+ {}
+};
+MODULE_DEVICE_TABLE(of, wsa881x_i2c_driver_table);
+
+static struct i2c_driver wsa881x_codec_driver = {
+ .driver = {
+ .name = "wsa881x-i2c-codec",
+ .probe_type = PROBE_PREFER_ASYNCHRONOUS,
+ .pm = &wsa881x_i2c_pm_ops,
+ .of_match_table = wsa881x_i2c_driver_table,
+ },
+ .id_table = wsa881x_i2c_id,
+ .probe = wsa881x_i2c_probe,
+};
+
+static int __init wsa881x_codec_init(void)
+{
+ return i2c_add_driver(&wsa881x_codec_driver);
+}
+module_init(wsa881x_codec_init);
+
+static void __exit wsa881x_codec_exit(void)
+{
+ i2c_del_driver(&wsa881x_codec_driver);
+}
+
+module_exit(wsa881x_codec_exit);
+
+MODULE_DESCRIPTION("WSA881x Codec driver");
+MODULE_LICENSE("GPL");
--
2.45.2