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Diffstat (limited to 'sound/soc/codecs/wm8903.c')
-rw-r--r--sound/soc/codecs/wm8903.c2115
1 files changed, 1287 insertions, 828 deletions
diff --git a/sound/soc/codecs/wm8903.c b/sound/soc/codecs/wm8903.c
index 8cf571f1a80..b84940c359a 100644
--- a/sound/soc/codecs/wm8903.c
+++ b/sound/soc/codecs/wm8903.c
@@ -1,7 +1,8 @@
/*
* wm8903.c -- WM8903 ALSA SoC Audio driver
*
- * Copyright 2008 Wolfson Microelectronics
+ * Copyright 2008-12 Wolfson Microelectronics
+ * Copyright 2011-2012 NVIDIA, Inc.
*
* Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
*
@@ -11,473 +12,345 @@
*
* TODO:
* - TDM mode configuration.
- * - Mic detect.
* - Digital microphone support.
- * - Interrupt support (mic detect and sequencer).
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
+#include <linux/completion.h>
#include <linux/delay.h>
+#include <linux/gpio.h>
#include <linux/pm.h>
#include <linux/i2c.h>
-#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+#include <linux/irq.h>
#include <sound/core.h>
+#include <sound/jack.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/tlv.h>
#include <sound/soc.h>
-#include <sound/soc-dapm.h>
#include <sound/initval.h>
+#include <sound/wm8903.h>
+#include <trace/events/asoc.h>
#include "wm8903.h"
/* Register defaults at reset */
-static u16 wm8903_reg_defaults[] = {
- 0x8903, /* R0 - SW Reset and ID */
- 0x0000, /* R1 - Revision Number */
- 0x0000, /* R2 */
- 0x0000, /* R3 */
- 0x0018, /* R4 - Bias Control 0 */
- 0x0000, /* R5 - VMID Control 0 */
- 0x0000, /* R6 - Mic Bias Control 0 */
- 0x0000, /* R7 */
- 0x0001, /* R8 - Analogue DAC 0 */
- 0x0000, /* R9 */
- 0x0001, /* R10 - Analogue ADC 0 */
- 0x0000, /* R11 */
- 0x0000, /* R12 - Power Management 0 */
- 0x0000, /* R13 - Power Management 1 */
- 0x0000, /* R14 - Power Management 2 */
- 0x0000, /* R15 - Power Management 3 */
- 0x0000, /* R16 - Power Management 4 */
- 0x0000, /* R17 - Power Management 5 */
- 0x0000, /* R18 - Power Management 6 */
- 0x0000, /* R19 */
- 0x0400, /* R20 - Clock Rates 0 */
- 0x0D07, /* R21 - Clock Rates 1 */
- 0x0000, /* R22 - Clock Rates 2 */
- 0x0000, /* R23 */
- 0x0050, /* R24 - Audio Interface 0 */
- 0x0242, /* R25 - Audio Interface 1 */
- 0x0008, /* R26 - Audio Interface 2 */
- 0x0022, /* R27 - Audio Interface 3 */
- 0x0000, /* R28 */
- 0x0000, /* R29 */
- 0x00C0, /* R30 - DAC Digital Volume Left */
- 0x00C0, /* R31 - DAC Digital Volume Right */
- 0x0000, /* R32 - DAC Digital 0 */
- 0x0000, /* R33 - DAC Digital 1 */
- 0x0000, /* R34 */
- 0x0000, /* R35 */
- 0x00C0, /* R36 - ADC Digital Volume Left */
- 0x00C0, /* R37 - ADC Digital Volume Right */
- 0x0000, /* R38 - ADC Digital 0 */
- 0x0073, /* R39 - Digital Microphone 0 */
- 0x09BF, /* R40 - DRC 0 */
- 0x3241, /* R41 - DRC 1 */
- 0x0020, /* R42 - DRC 2 */
- 0x0000, /* R43 - DRC 3 */
- 0x0085, /* R44 - Analogue Left Input 0 */
- 0x0085, /* R45 - Analogue Right Input 0 */
- 0x0044, /* R46 - Analogue Left Input 1 */
- 0x0044, /* R47 - Analogue Right Input 1 */
- 0x0000, /* R48 */
- 0x0000, /* R49 */
- 0x0008, /* R50 - Analogue Left Mix 0 */
- 0x0004, /* R51 - Analogue Right Mix 0 */
- 0x0000, /* R52 - Analogue Spk Mix Left 0 */
- 0x0000, /* R53 - Analogue Spk Mix Left 1 */
- 0x0000, /* R54 - Analogue Spk Mix Right 0 */
- 0x0000, /* R55 - Analogue Spk Mix Right 1 */
- 0x0000, /* R56 */
- 0x002D, /* R57 - Analogue OUT1 Left */
- 0x002D, /* R58 - Analogue OUT1 Right */
- 0x0039, /* R59 - Analogue OUT2 Left */
- 0x0039, /* R60 - Analogue OUT2 Right */
- 0x0100, /* R61 */
- 0x0139, /* R62 - Analogue OUT3 Left */
- 0x0139, /* R63 - Analogue OUT3 Right */
- 0x0000, /* R64 */
- 0x0000, /* R65 - Analogue SPK Output Control 0 */
- 0x0000, /* R66 */
- 0x0010, /* R67 - DC Servo 0 */
- 0x0100, /* R68 */
- 0x00A4, /* R69 - DC Servo 2 */
- 0x0807, /* R70 */
- 0x0000, /* R71 */
- 0x0000, /* R72 */
- 0x0000, /* R73 */
- 0x0000, /* R74 */
- 0x0000, /* R75 */
- 0x0000, /* R76 */
- 0x0000, /* R77 */
- 0x0000, /* R78 */
- 0x000E, /* R79 */
- 0x0000, /* R80 */
- 0x0000, /* R81 */
- 0x0000, /* R82 */
- 0x0000, /* R83 */
- 0x0000, /* R84 */
- 0x0000, /* R85 */
- 0x0000, /* R86 */
- 0x0006, /* R87 */
- 0x0000, /* R88 */
- 0x0000, /* R89 */
- 0x0000, /* R90 - Analogue HP 0 */
- 0x0060, /* R91 */
- 0x0000, /* R92 */
- 0x0000, /* R93 */
- 0x0000, /* R94 - Analogue Lineout 0 */
- 0x0060, /* R95 */
- 0x0000, /* R96 */
- 0x0000, /* R97 */
- 0x0000, /* R98 - Charge Pump 0 */
- 0x1F25, /* R99 */
- 0x2B19, /* R100 */
- 0x01C0, /* R101 */
- 0x01EF, /* R102 */
- 0x2B00, /* R103 */
- 0x0000, /* R104 - Class W 0 */
- 0x01C0, /* R105 */
- 0x1C10, /* R106 */
- 0x0000, /* R107 */
- 0x0000, /* R108 - Write Sequencer 0 */
- 0x0000, /* R109 - Write Sequencer 1 */
- 0x0000, /* R110 - Write Sequencer 2 */
- 0x0000, /* R111 - Write Sequencer 3 */
- 0x0000, /* R112 - Write Sequencer 4 */
- 0x0000, /* R113 */
- 0x0000, /* R114 - Control Interface */
- 0x0000, /* R115 */
- 0x00A8, /* R116 - GPIO Control 1 */
- 0x00A8, /* R117 - GPIO Control 2 */
- 0x00A8, /* R118 - GPIO Control 3 */
- 0x0220, /* R119 - GPIO Control 4 */
- 0x01A0, /* R120 - GPIO Control 5 */
- 0x0000, /* R121 - Interrupt Status 1 */
- 0xFFFF, /* R122 - Interrupt Status 1 Mask */
- 0x0000, /* R123 - Interrupt Polarity 1 */
- 0x0000, /* R124 */
- 0x0003, /* R125 */
- 0x0000, /* R126 - Interrupt Control */
- 0x0000, /* R127 */
- 0x0005, /* R128 */
- 0x0000, /* R129 - Control Interface Test 1 */
- 0x0000, /* R130 */
- 0x0000, /* R131 */
- 0x0000, /* R132 */
- 0x0000, /* R133 */
- 0x0000, /* R134 */
- 0x03FF, /* R135 */
- 0x0007, /* R136 */
- 0x0040, /* R137 */
- 0x0000, /* R138 */
- 0x0000, /* R139 */
- 0x0000, /* R140 */
- 0x0000, /* R141 */
- 0x0000, /* R142 */
- 0x0000, /* R143 */
- 0x0000, /* R144 */
- 0x0000, /* R145 */
- 0x0000, /* R146 */
- 0x0000, /* R147 */
- 0x4000, /* R148 */
- 0x6810, /* R149 - Charge Pump Test 1 */
- 0x0004, /* R150 */
- 0x0000, /* R151 */
- 0x0000, /* R152 */
- 0x0000, /* R153 */
- 0x0000, /* R154 */
- 0x0000, /* R155 */
- 0x0000, /* R156 */
- 0x0000, /* R157 */
- 0x0000, /* R158 */
- 0x0000, /* R159 */
- 0x0000, /* R160 */
- 0x0000, /* R161 */
- 0x0000, /* R162 */
- 0x0000, /* R163 */
- 0x0028, /* R164 - Clock Rate Test 4 */
- 0x0004, /* R165 */
- 0x0000, /* R166 */
- 0x0060, /* R167 */
- 0x0000, /* R168 */
- 0x0000, /* R169 */
- 0x0000, /* R170 */
- 0x0000, /* R171 */
- 0x0000, /* R172 - Analogue Output Bias 0 */
+static const struct reg_default wm8903_reg_defaults[] = {
+ { 4, 0x0018 }, /* R4 - Bias Control 0 */
+ { 5, 0x0000 }, /* R5 - VMID Control 0 */
+ { 6, 0x0000 }, /* R6 - Mic Bias Control 0 */
+ { 8, 0x0001 }, /* R8 - Analogue DAC 0 */
+ { 10, 0x0001 }, /* R10 - Analogue ADC 0 */
+ { 12, 0x0000 }, /* R12 - Power Management 0 */
+ { 13, 0x0000 }, /* R13 - Power Management 1 */
+ { 14, 0x0000 }, /* R14 - Power Management 2 */
+ { 15, 0x0000 }, /* R15 - Power Management 3 */
+ { 16, 0x0000 }, /* R16 - Power Management 4 */
+ { 17, 0x0000 }, /* R17 - Power Management 5 */
+ { 18, 0x0000 }, /* R18 - Power Management 6 */
+ { 20, 0x0400 }, /* R20 - Clock Rates 0 */
+ { 21, 0x0D07 }, /* R21 - Clock Rates 1 */
+ { 22, 0x0000 }, /* R22 - Clock Rates 2 */
+ { 24, 0x0050 }, /* R24 - Audio Interface 0 */
+ { 25, 0x0242 }, /* R25 - Audio Interface 1 */
+ { 26, 0x0008 }, /* R26 - Audio Interface 2 */
+ { 27, 0x0022 }, /* R27 - Audio Interface 3 */
+ { 30, 0x00C0 }, /* R30 - DAC Digital Volume Left */
+ { 31, 0x00C0 }, /* R31 - DAC Digital Volume Right */
+ { 32, 0x0000 }, /* R32 - DAC Digital 0 */
+ { 33, 0x0000 }, /* R33 - DAC Digital 1 */
+ { 36, 0x00C0 }, /* R36 - ADC Digital Volume Left */
+ { 37, 0x00C0 }, /* R37 - ADC Digital Volume Right */
+ { 38, 0x0000 }, /* R38 - ADC Digital 0 */
+ { 39, 0x0073 }, /* R39 - Digital Microphone 0 */
+ { 40, 0x09BF }, /* R40 - DRC 0 */
+ { 41, 0x3241 }, /* R41 - DRC 1 */
+ { 42, 0x0020 }, /* R42 - DRC 2 */
+ { 43, 0x0000 }, /* R43 - DRC 3 */
+ { 44, 0x0085 }, /* R44 - Analogue Left Input 0 */
+ { 45, 0x0085 }, /* R45 - Analogue Right Input 0 */
+ { 46, 0x0044 }, /* R46 - Analogue Left Input 1 */
+ { 47, 0x0044 }, /* R47 - Analogue Right Input 1 */
+ { 50, 0x0008 }, /* R50 - Analogue Left Mix 0 */
+ { 51, 0x0004 }, /* R51 - Analogue Right Mix 0 */
+ { 52, 0x0000 }, /* R52 - Analogue Spk Mix Left 0 */
+ { 53, 0x0000 }, /* R53 - Analogue Spk Mix Left 1 */
+ { 54, 0x0000 }, /* R54 - Analogue Spk Mix Right 0 */
+ { 55, 0x0000 }, /* R55 - Analogue Spk Mix Right 1 */
+ { 57, 0x002D }, /* R57 - Analogue OUT1 Left */
+ { 58, 0x002D }, /* R58 - Analogue OUT1 Right */
+ { 59, 0x0039 }, /* R59 - Analogue OUT2 Left */
+ { 60, 0x0039 }, /* R60 - Analogue OUT2 Right */
+ { 62, 0x0139 }, /* R62 - Analogue OUT3 Left */
+ { 63, 0x0139 }, /* R63 - Analogue OUT3 Right */
+ { 64, 0x0000 }, /* R65 - Analogue SPK Output Control 0 */
+ { 67, 0x0010 }, /* R67 - DC Servo 0 */
+ { 69, 0x00A4 }, /* R69 - DC Servo 2 */
+ { 90, 0x0000 }, /* R90 - Analogue HP 0 */
+ { 94, 0x0000 }, /* R94 - Analogue Lineout 0 */
+ { 98, 0x0000 }, /* R98 - Charge Pump 0 */
+ { 104, 0x0000 }, /* R104 - Class W 0 */
+ { 108, 0x0000 }, /* R108 - Write Sequencer 0 */
+ { 109, 0x0000 }, /* R109 - Write Sequencer 1 */
+ { 110, 0x0000 }, /* R110 - Write Sequencer 2 */
+ { 111, 0x0000 }, /* R111 - Write Sequencer 3 */
+ { 112, 0x0000 }, /* R112 - Write Sequencer 4 */
+ { 114, 0x0000 }, /* R114 - Control Interface */
+ { 116, 0x00A8 }, /* R116 - GPIO Control 1 */
+ { 117, 0x00A8 }, /* R117 - GPIO Control 2 */
+ { 118, 0x00A8 }, /* R118 - GPIO Control 3 */
+ { 119, 0x0220 }, /* R119 - GPIO Control 4 */
+ { 120, 0x01A0 }, /* R120 - GPIO Control 5 */
+ { 122, 0xFFFF }, /* R122 - Interrupt Status 1 Mask */
+ { 123, 0x0000 }, /* R123 - Interrupt Polarity 1 */
+ { 126, 0x0000 }, /* R126 - Interrupt Control */
+ { 129, 0x0000 }, /* R129 - Control Interface Test 1 */
+ { 149, 0x6810 }, /* R149 - Charge Pump Test 1 */
+ { 164, 0x0028 }, /* R164 - Clock Rate Test 4 */
+ { 172, 0x0000 }, /* R172 - Analogue Output Bias 0 */
};
struct wm8903_priv {
- struct snd_soc_codec codec;
- u16 reg_cache[ARRAY_SIZE(wm8903_reg_defaults)];
+ struct wm8903_platform_data *pdata;
+ struct device *dev;
+ struct snd_soc_codec *codec;
+ struct regmap *regmap;
int sysclk;
+ int irq;
- /* Reference counts */
- int charge_pump_users;
- int class_w_users;
- int playback_active;
- int capture_active;
-
- struct snd_pcm_substream *master_substream;
- struct snd_pcm_substream *slave_substream;
-};
-
-
-static unsigned int wm8903_read_reg_cache(struct snd_soc_codec *codec,
- unsigned int reg)
-{
- u16 *cache = codec->reg_cache;
+ int fs;
+ int deemph;
- BUG_ON(reg >= ARRAY_SIZE(wm8903_reg_defaults));
+ int dcs_pending;
+ int dcs_cache[4];
- return cache[reg];
-}
+ /* Reference count */
+ int class_w_users;
-static unsigned int wm8903_hw_read(struct snd_soc_codec *codec, u8 reg)
-{
- struct i2c_msg xfer[2];
- u16 data;
- int ret;
- struct i2c_client *client = codec->control_data;
-
- /* Write register */
- xfer[0].addr = client->addr;
- xfer[0].flags = 0;
- xfer[0].len = 1;
- xfer[0].buf = &reg;
-
- /* Read data */
- xfer[1].addr = client->addr;
- xfer[1].flags = I2C_M_RD;
- xfer[1].len = 2;
- xfer[1].buf = (u8 *)&data;
-
- ret = i2c_transfer(client->adapter, xfer, 2);
- if (ret != 2) {
- pr_err("i2c_transfer returned %d\n", ret);
- return 0;
- }
+ struct snd_soc_jack *mic_jack;
+ int mic_det;
+ int mic_short;
+ int mic_last_report;
+ int mic_delay;
- return (data >> 8) | ((data & 0xff) << 8);
-}
+#ifdef CONFIG_GPIOLIB
+ struct gpio_chip gpio_chip;
+#endif
+};
-static unsigned int wm8903_read(struct snd_soc_codec *codec,
- unsigned int reg)
+static bool wm8903_readable_register(struct device *dev, unsigned int reg)
{
switch (reg) {
case WM8903_SW_RESET_AND_ID:
case WM8903_REVISION_NUMBER:
- case WM8903_INTERRUPT_STATUS_1:
+ case WM8903_BIAS_CONTROL_0:
+ case WM8903_VMID_CONTROL_0:
+ case WM8903_MIC_BIAS_CONTROL_0:
+ case WM8903_ANALOGUE_DAC_0:
+ case WM8903_ANALOGUE_ADC_0:
+ case WM8903_POWER_MANAGEMENT_0:
+ case WM8903_POWER_MANAGEMENT_1:
+ case WM8903_POWER_MANAGEMENT_2:
+ case WM8903_POWER_MANAGEMENT_3:
+ case WM8903_POWER_MANAGEMENT_4:
+ case WM8903_POWER_MANAGEMENT_5:
+ case WM8903_POWER_MANAGEMENT_6:
+ case WM8903_CLOCK_RATES_0:
+ case WM8903_CLOCK_RATES_1:
+ case WM8903_CLOCK_RATES_2:
+ case WM8903_AUDIO_INTERFACE_0:
+ case WM8903_AUDIO_INTERFACE_1:
+ case WM8903_AUDIO_INTERFACE_2:
+ case WM8903_AUDIO_INTERFACE_3:
+ case WM8903_DAC_DIGITAL_VOLUME_LEFT:
+ case WM8903_DAC_DIGITAL_VOLUME_RIGHT:
+ case WM8903_DAC_DIGITAL_0:
+ case WM8903_DAC_DIGITAL_1:
+ case WM8903_ADC_DIGITAL_VOLUME_LEFT:
+ case WM8903_ADC_DIGITAL_VOLUME_RIGHT:
+ case WM8903_ADC_DIGITAL_0:
+ case WM8903_DIGITAL_MICROPHONE_0:
+ case WM8903_DRC_0:
+ case WM8903_DRC_1:
+ case WM8903_DRC_2:
+ case WM8903_DRC_3:
+ case WM8903_ANALOGUE_LEFT_INPUT_0:
+ case WM8903_ANALOGUE_RIGHT_INPUT_0:
+ case WM8903_ANALOGUE_LEFT_INPUT_1:
+ case WM8903_ANALOGUE_RIGHT_INPUT_1:
+ case WM8903_ANALOGUE_LEFT_MIX_0:
+ case WM8903_ANALOGUE_RIGHT_MIX_0:
+ case WM8903_ANALOGUE_SPK_MIX_LEFT_0:
+ case WM8903_ANALOGUE_SPK_MIX_LEFT_1:
+ case WM8903_ANALOGUE_SPK_MIX_RIGHT_0:
+ case WM8903_ANALOGUE_SPK_MIX_RIGHT_1:
+ case WM8903_ANALOGUE_OUT1_LEFT:
+ case WM8903_ANALOGUE_OUT1_RIGHT:
+ case WM8903_ANALOGUE_OUT2_LEFT:
+ case WM8903_ANALOGUE_OUT2_RIGHT:
+ case WM8903_ANALOGUE_OUT3_LEFT:
+ case WM8903_ANALOGUE_OUT3_RIGHT:
+ case WM8903_ANALOGUE_SPK_OUTPUT_CONTROL_0:
+ case WM8903_DC_SERVO_0:
+ case WM8903_DC_SERVO_2:
+ case WM8903_DC_SERVO_READBACK_1:
+ case WM8903_DC_SERVO_READBACK_2:
+ case WM8903_DC_SERVO_READBACK_3:
+ case WM8903_DC_SERVO_READBACK_4:
+ case WM8903_ANALOGUE_HP_0:
+ case WM8903_ANALOGUE_LINEOUT_0:
+ case WM8903_CHARGE_PUMP_0:
+ case WM8903_CLASS_W_0:
+ case WM8903_WRITE_SEQUENCER_0:
+ case WM8903_WRITE_SEQUENCER_1:
+ case WM8903_WRITE_SEQUENCER_2:
+ case WM8903_WRITE_SEQUENCER_3:
case WM8903_WRITE_SEQUENCER_4:
- return wm8903_hw_read(codec, reg);
-
+ case WM8903_CONTROL_INTERFACE:
+ case WM8903_GPIO_CONTROL_1:
+ case WM8903_GPIO_CONTROL_2:
+ case WM8903_GPIO_CONTROL_3:
+ case WM8903_GPIO_CONTROL_4:
+ case WM8903_GPIO_CONTROL_5:
+ case WM8903_INTERRUPT_STATUS_1:
+ case WM8903_INTERRUPT_STATUS_1_MASK:
+ case WM8903_INTERRUPT_POLARITY_1:
+ case WM8903_INTERRUPT_CONTROL:
+ case WM8903_CLOCK_RATE_TEST_4:
+ case WM8903_ANALOGUE_OUTPUT_BIAS_0:
+ return true;
default:
- return wm8903_read_reg_cache(codec, reg);
+ return false;
}
}
-static void wm8903_write_reg_cache(struct snd_soc_codec *codec,
- u16 reg, unsigned int value)
+static bool wm8903_volatile_register(struct device *dev, unsigned int reg)
{
- u16 *cache = codec->reg_cache;
-
- BUG_ON(reg >= ARRAY_SIZE(wm8903_reg_defaults));
-
switch (reg) {
case WM8903_SW_RESET_AND_ID:
case WM8903_REVISION_NUMBER:
- break;
+ case WM8903_INTERRUPT_STATUS_1:
+ case WM8903_WRITE_SEQUENCER_4:
+ case WM8903_DC_SERVO_READBACK_1:
+ case WM8903_DC_SERVO_READBACK_2:
+ case WM8903_DC_SERVO_READBACK_3:
+ case WM8903_DC_SERVO_READBACK_4:
+ return 1;
default:
- cache[reg] = value;
- break;
- }
-}
-
-static int wm8903_write(struct snd_soc_codec *codec, unsigned int reg,
- unsigned int value)
-{
- u8 data[3];
-
- wm8903_write_reg_cache(codec, reg, value);
-
- /* Data format is 1 byte of address followed by 2 bytes of data */
- data[0] = reg;
- data[1] = (value >> 8) & 0xff;
- data[2] = value & 0xff;
-
- if (codec->hw_write(codec->control_data, data, 3) == 2)
return 0;
- else
- return -EIO;
+ }
}
-static int wm8903_run_sequence(struct snd_soc_codec *codec, unsigned int start)
+static int wm8903_cp_event(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol, int event)
{
- u16 reg[5];
- struct i2c_client *i2c = codec->control_data;
-
- BUG_ON(start > 48);
-
- /* Enable the sequencer */
- reg[0] = wm8903_read(codec, WM8903_WRITE_SEQUENCER_0);
- reg[0] |= WM8903_WSEQ_ENA;
- wm8903_write(codec, WM8903_WRITE_SEQUENCER_0, reg[0]);
-
- dev_dbg(&i2c->dev, "Starting sequence at %d\n", start);
-
- wm8903_write(codec, WM8903_WRITE_SEQUENCER_3,
- start | WM8903_WSEQ_START);
-
- /* Wait for it to complete. If we have the interrupt wired up then
- * we could block waiting for an interrupt, though polling may still
- * be desirable for diagnostic purposes.
- */
- do {
- msleep(10);
-
- reg[4] = wm8903_read(codec, WM8903_WRITE_SEQUENCER_4);
- } while (reg[4] & WM8903_WSEQ_BUSY);
-
- dev_dbg(&i2c->dev, "Sequence complete\n");
-
- /* Disable the sequencer again */
- wm8903_write(codec, WM8903_WRITE_SEQUENCER_0,
- reg[0] & ~WM8903_WSEQ_ENA);
+ WARN_ON(event != SND_SOC_DAPM_POST_PMU);
+ mdelay(4);
return 0;
}
-static void wm8903_sync_reg_cache(struct snd_soc_codec *codec, u16 *cache)
-{
- int i;
-
- /* There really ought to be something better we can do here :/ */
- for (i = 0; i < ARRAY_SIZE(wm8903_reg_defaults); i++)
- cache[i] = wm8903_hw_read(codec, i);
-}
-
-static void wm8903_reset(struct snd_soc_codec *codec)
-{
- wm8903_write(codec, WM8903_SW_RESET_AND_ID, 0);
- memcpy(codec->reg_cache, wm8903_reg_defaults,
- sizeof(wm8903_reg_defaults));
-}
-
-#define WM8903_OUTPUT_SHORT 0x8
-#define WM8903_OUTPUT_OUT 0x4
-#define WM8903_OUTPUT_INT 0x2
-#define WM8903_OUTPUT_IN 0x1
-
-/*
- * Event for headphone and line out amplifier power changes. Special
- * power up/down sequences are required in order to maximise pop/click
- * performance.
- */
-static int wm8903_output_event(struct snd_soc_dapm_widget *w,
- struct snd_kcontrol *kcontrol, int event)
+static int wm8903_dcs_event(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol, int event)
{
struct snd_soc_codec *codec = w->codec;
- struct wm8903_priv *wm8903 = codec->private_data;
- struct i2c_client *i2c = codec->control_data;
- u16 val;
- u16 reg;
- int shift;
- u16 cp_reg = wm8903_read(codec, WM8903_CHARGE_PUMP_0);
+ struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
- switch (w->reg) {
- case WM8903_POWER_MANAGEMENT_2:
- reg = WM8903_ANALOGUE_HP_0;
+ switch (event) {
+ case SND_SOC_DAPM_POST_PMU:
+ wm8903->dcs_pending |= 1 << w->shift;
break;
- case WM8903_POWER_MANAGEMENT_3:
- reg = WM8903_ANALOGUE_LINEOUT_0;
+ case SND_SOC_DAPM_PRE_PMD:
+ snd_soc_update_bits(codec, WM8903_DC_SERVO_0,
+ 1 << w->shift, 0);
break;
- default:
- BUG();
- return -EINVAL; /* Spurious warning from some compilers */
- }
-
- switch (w->shift) {
- case 0:
- shift = 0;
- break;
- case 1:
- shift = 4;
- break;
- default:
- BUG();
- return -EINVAL; /* Spurious warning from some compilers */
}
- if (event & SND_SOC_DAPM_PRE_PMU) {
- val = wm8903_read(codec, reg);
-
- /* Short the output */
- val &= ~(WM8903_OUTPUT_SHORT << shift);
- wm8903_write(codec, reg, val);
-
- wm8903->charge_pump_users++;
+ return 0;
+}
- dev_dbg(&i2c->dev, "Charge pump use count now %d\n",
- wm8903->charge_pump_users);
+#define WM8903_DCS_MODE_WRITE_STOP 0
+#define WM8903_DCS_MODE_START_STOP 2
- if (wm8903->charge_pump_users == 1) {
- dev_dbg(&i2c->dev, "Enabling charge pump\n");
- wm8903_write(codec, WM8903_CHARGE_PUMP_0,
- cp_reg | WM8903_CP_ENA);
- mdelay(4);
+static void wm8903_seq_notifier(struct snd_soc_dapm_context *dapm,
+ enum snd_soc_dapm_type event, int subseq)
+{
+ struct snd_soc_codec *codec = container_of(dapm,
+ struct snd_soc_codec, dapm);
+ struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
+ int dcs_mode = WM8903_DCS_MODE_WRITE_STOP;
+ int i, val;
+
+ /* Complete any pending DC servo starts */
+ if (wm8903->dcs_pending) {
+ dev_dbg(codec->dev, "Starting DC servo for %x\n",
+ wm8903->dcs_pending);
+
+ /* If we've no cached values then we need to do startup */
+ for (i = 0; i < ARRAY_SIZE(wm8903->dcs_cache); i++) {
+ if (!(wm8903->dcs_pending & (1 << i)))
+ continue;
+
+ if (wm8903->dcs_cache[i]) {
+ dev_dbg(codec->dev,
+ "Restore DC servo %d value %x\n",
+ 3 - i, wm8903->dcs_cache[i]);
+
+ snd_soc_write(codec, WM8903_DC_SERVO_4 + i,
+ wm8903->dcs_cache[i] & 0xff);
+ } else {
+ dev_dbg(codec->dev,
+ "Calibrate DC servo %d\n", 3 - i);
+ dcs_mode = WM8903_DCS_MODE_START_STOP;
+ }
}
- }
-
- if (event & SND_SOC_DAPM_POST_PMU) {
- val = wm8903_read(codec, reg);
- val |= (WM8903_OUTPUT_IN << shift);
- wm8903_write(codec, reg, val);
+ /* Don't trust the cache for analogue */
+ if (wm8903->class_w_users)
+ dcs_mode = WM8903_DCS_MODE_START_STOP;
- val |= (WM8903_OUTPUT_INT << shift);
- wm8903_write(codec, reg, val);
+ snd_soc_update_bits(codec, WM8903_DC_SERVO_2,
+ WM8903_DCS_MODE_MASK, dcs_mode);
- /* Turn on the output ENA_OUTP */
- val |= (WM8903_OUTPUT_OUT << shift);
- wm8903_write(codec, reg, val);
+ snd_soc_update_bits(codec, WM8903_DC_SERVO_0,
+ WM8903_DCS_ENA_MASK, wm8903->dcs_pending);
- /* Remove the short */
- val |= (WM8903_OUTPUT_SHORT << shift);
- wm8903_write(codec, reg, val);
- }
-
- if (event & SND_SOC_DAPM_PRE_PMD) {
- val = wm8903_read(codec, reg);
+ switch (dcs_mode) {
+ case WM8903_DCS_MODE_WRITE_STOP:
+ break;
- /* Short the output */
- val &= ~(WM8903_OUTPUT_SHORT << shift);
- wm8903_write(codec, reg, val);
+ case WM8903_DCS_MODE_START_STOP:
+ msleep(270);
- /* Then disable the intermediate and output stages */
- val &= ~((WM8903_OUTPUT_OUT | WM8903_OUTPUT_INT |
- WM8903_OUTPUT_IN) << shift);
- wm8903_write(codec, reg, val);
- }
+ /* Cache the measured offsets for digital */
+ if (wm8903->class_w_users)
+ break;
- if (event & SND_SOC_DAPM_POST_PMD) {
- wm8903->charge_pump_users--;
+ for (i = 0; i < ARRAY_SIZE(wm8903->dcs_cache); i++) {
+ if (!(wm8903->dcs_pending & (1 << i)))
+ continue;
- dev_dbg(&i2c->dev, "Charge pump use count now %d\n",
- wm8903->charge_pump_users);
+ val = snd_soc_read(codec,
+ WM8903_DC_SERVO_READBACK_1 + i);
+ dev_dbg(codec->dev, "DC servo %d: %x\n",
+ 3 - i, val);
+ wm8903->dcs_cache[i] = val;
+ }
+ break;
- if (wm8903->charge_pump_users == 0) {
- dev_dbg(&i2c->dev, "Disabling charge pump\n");
- wm8903_write(codec, WM8903_CHARGE_PUMP_0,
- cp_reg & ~WM8903_CP_ENA);
+ default:
+ pr_warn("DCS mode %d delay not set\n", dcs_mode);
+ break;
}
- }
- return 0;
+ wm8903->dcs_pending = 0;
+ }
}
/*
@@ -491,20 +364,18 @@ static int wm8903_output_event(struct snd_soc_dapm_widget *w,
static int wm8903_class_w_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
- struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol);
- struct snd_soc_codec *codec = widget->codec;
- struct wm8903_priv *wm8903 = codec->private_data;
- struct i2c_client *i2c = codec->control_data;
+ struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol);
+ struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
u16 reg;
int ret;
- reg = wm8903_read(codec, WM8903_CLASS_W_0);
+ reg = snd_soc_read(codec, WM8903_CLASS_W_0);
/* Turn it off if we're about to enable bypass */
if (ucontrol->value.integer.value[0]) {
if (wm8903->class_w_users == 0) {
- dev_dbg(&i2c->dev, "Disabling Class W\n");
- wm8903_write(codec, WM8903_CLASS_W_0, reg &
+ dev_dbg(codec->dev, "Disabling Class W\n");
+ snd_soc_write(codec, WM8903_CLASS_W_0, reg &
~(WM8903_CP_DYN_FREQ | WM8903_CP_DYN_V));
}
wm8903->class_w_users++;
@@ -516,29 +387,96 @@ static int wm8903_class_w_put(struct snd_kcontrol *kcontrol,
/* If we've just disabled the last bypass path turn Class W on */
if (!ucontrol->value.integer.value[0]) {
if (wm8903->class_w_users == 1) {
- dev_dbg(&i2c->dev, "Enabling Class W\n");
- wm8903_write(codec, WM8903_CLASS_W_0, reg |
+ dev_dbg(codec->dev, "Enabling Class W\n");
+ snd_soc_write(codec, WM8903_CLASS_W_0, reg |
WM8903_CP_DYN_FREQ | WM8903_CP_DYN_V);
}
wm8903->class_w_users--;
}
- dev_dbg(&i2c->dev, "Bypass use count now %d\n",
+ dev_dbg(codec->dev, "Bypass use count now %d\n",
wm8903->class_w_users);
return ret;
}
#define SOC_DAPM_SINGLE_W(xname, reg, shift, max, invert) \
-{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
- .info = snd_soc_info_volsw, \
- .get = snd_soc_dapm_get_volsw, .put = wm8903_class_w_put, \
- .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert) }
+ SOC_SINGLE_EXT(xname, reg, shift, max, invert, \
+ snd_soc_dapm_get_volsw, wm8903_class_w_put)
+
+
+static int wm8903_deemph[] = { 0, 32000, 44100, 48000 };
+
+static int wm8903_set_deemph(struct snd_soc_codec *codec)
+{
+ struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
+ int val, i, best;
+
+ /* If we're using deemphasis select the nearest available sample
+ * rate.
+ */
+ if (wm8903->deemph) {
+ best = 1;
+ for (i = 2; i < ARRAY_SIZE(wm8903_deemph); i++) {
+ if (abs(wm8903_deemph[i] - wm8903->fs) <
+ abs(wm8903_deemph[best] - wm8903->fs))
+ best = i;
+ }
+
+ val = best << WM8903_DEEMPH_SHIFT;
+ } else {
+ best = 0;
+ val = 0;
+ }
+
+ dev_dbg(codec->dev, "Set deemphasis %d (%dHz)\n",
+ best, wm8903_deemph[best]);
+
+ return snd_soc_update_bits(codec, WM8903_DAC_DIGITAL_1,
+ WM8903_DEEMPH_MASK, val);
+}
+
+static int wm8903_get_deemph(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
+ struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
+
+ ucontrol->value.enumerated.item[0] = wm8903->deemph;
+
+ return 0;
+}
+
+static int wm8903_put_deemph(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
+ struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
+ int deemph = ucontrol->value.enumerated.item[0];
+ int ret = 0;
+
+ if (deemph > 1)
+ return -EINVAL;
+
+ mutex_lock(&codec->mutex);
+ if (wm8903->deemph != deemph) {
+ wm8903->deemph = deemph;
+ wm8903_set_deemph(codec);
+
+ ret = 1;
+ }
+ mutex_unlock(&codec->mutex);
+
+ return ret;
+}
/* ALSA can only do steps of .01dB */
static const DECLARE_TLV_DB_SCALE(digital_tlv, -7200, 75, 1);
+static const DECLARE_TLV_DB_SCALE(dac_boost_tlv, 0, 600, 0);
+
+static const DECLARE_TLV_DB_SCALE(digital_sidetone_tlv, -3600, 300, 0);
static const DECLARE_TLV_DB_SCALE(out_tlv, -5700, 100, 0);
static const DECLARE_TLV_DB_SCALE(drc_tlv_thresh, 0, 75, 0);
@@ -547,15 +485,32 @@ static const DECLARE_TLV_DB_SCALE(drc_tlv_min, 0, 600, 0);
static const DECLARE_TLV_DB_SCALE(drc_tlv_max, 1200, 600, 0);
static const DECLARE_TLV_DB_SCALE(drc_tlv_startup, -300, 50, 0);
+static const char *hpf_mode_text[] = {
+ "Hi-fi", "Voice 1", "Voice 2", "Voice 3"
+};
+
+static SOC_ENUM_SINGLE_DECL(hpf_mode,
+ WM8903_ADC_DIGITAL_0, 5, hpf_mode_text);
+
+static const char *osr_text[] = {
+ "Low power", "High performance"
+};
+
+static SOC_ENUM_SINGLE_DECL(adc_osr,
+ WM8903_ANALOGUE_ADC_0, 0, osr_text);
+
+static SOC_ENUM_SINGLE_DECL(dac_osr,
+ WM8903_DAC_DIGITAL_1, 0, osr_text);
+
static const char *drc_slope_text[] = {
"1", "1/2", "1/4", "1/8", "1/16", "0"
};
-static const struct soc_enum drc_slope_r0 =
- SOC_ENUM_SINGLE(WM8903_DRC_2, 3, 6, drc_slope_text);
+static SOC_ENUM_SINGLE_DECL(drc_slope_r0,
+ WM8903_DRC_2, 3, drc_slope_text);
-static const struct soc_enum drc_slope_r1 =
- SOC_ENUM_SINGLE(WM8903_DRC_2, 0, 6, drc_slope_text);
+static SOC_ENUM_SINGLE_DECL(drc_slope_r1,
+ WM8903_DRC_2, 0, drc_slope_text);
static const char *drc_attack_text[] = {
"instantaneous",
@@ -563,100 +518,126 @@ static const char *drc_attack_text[] = {
"46.4ms", "92.8ms", "185.6ms"
};
-static const struct soc_enum drc_attack =
- SOC_ENUM_SINGLE(WM8903_DRC_1, 12, 11, drc_attack_text);
+static SOC_ENUM_SINGLE_DECL(drc_attack,
+ WM8903_DRC_1, 12, drc_attack_text);
static const char *drc_decay_text[] = {
"186ms", "372ms", "743ms", "1.49s", "2.97s", "5.94s", "11.89s",
"23.87s", "47.56s"
};
-static const struct soc_enum drc_decay =
- SOC_ENUM_SINGLE(WM8903_DRC_1, 8, 9, drc_decay_text);
+static SOC_ENUM_SINGLE_DECL(drc_decay,
+ WM8903_DRC_1, 8, drc_decay_text);
static const char *drc_ff_delay_text[] = {
"5 samples", "9 samples"
};
-static const struct soc_enum drc_ff_delay =
- SOC_ENUM_SINGLE(WM8903_DRC_0, 5, 2, drc_ff_delay_text);
+static SOC_ENUM_SINGLE_DECL(drc_ff_delay,
+ WM8903_DRC_0, 5, drc_ff_delay_text);
static const char *drc_qr_decay_text[] = {
"0.725ms", "1.45ms", "5.8ms"
};
-static const struct soc_enum drc_qr_decay =
- SOC_ENUM_SINGLE(WM8903_DRC_1, 4, 3, drc_qr_decay_text);
+static SOC_ENUM_SINGLE_DECL(drc_qr_decay,
+ WM8903_DRC_1, 4, drc_qr_decay_text);
static const char *drc_smoothing_text[] = {
"Low", "Medium", "High"
};
-static const struct soc_enum drc_smoothing =
- SOC_ENUM_SINGLE(WM8903_DRC_0, 11, 3, drc_smoothing_text);
+static SOC_ENUM_SINGLE_DECL(drc_smoothing,
+ WM8903_DRC_0, 11, drc_smoothing_text);
static const char *soft_mute_text[] = {
"Fast (fs/2)", "Slow (fs/32)"
};
-static const struct soc_enum soft_mute =
- SOC_ENUM_SINGLE(WM8903_DAC_DIGITAL_1, 10, 2, soft_mute_text);
+static SOC_ENUM_SINGLE_DECL(soft_mute,
+ WM8903_DAC_DIGITAL_1, 10, soft_mute_text);
static const char *mute_mode_text[] = {
"Hard", "Soft"
};
-static const struct soc_enum mute_mode =
- SOC_ENUM_SINGLE(WM8903_DAC_DIGITAL_1, 9, 2, mute_mode_text);
-
-static const char *dac_deemphasis_text[] = {
- "Disabled", "32kHz", "44.1kHz", "48kHz"
-};
-
-static const struct soc_enum dac_deemphasis =
- SOC_ENUM_SINGLE(WM8903_DAC_DIGITAL_1, 1, 4, dac_deemphasis_text);
+static SOC_ENUM_SINGLE_DECL(mute_mode,
+ WM8903_DAC_DIGITAL_1, 9, mute_mode_text);
static const char *companding_text[] = {
"ulaw", "alaw"
};
-static const struct soc_enum dac_companding =
- SOC_ENUM_SINGLE(WM8903_AUDIO_INTERFACE_0, 0, 2, companding_text);
+static SOC_ENUM_SINGLE_DECL(dac_companding,
+ WM8903_AUDIO_INTERFACE_0, 0, companding_text);
-static const struct soc_enum adc_companding =
- SOC_ENUM_SINGLE(WM8903_AUDIO_INTERFACE_0, 2, 2, companding_text);
+static SOC_ENUM_SINGLE_DECL(adc_companding,
+ WM8903_AUDIO_INTERFACE_0, 2, companding_text);
static const char *input_mode_text[] = {
"Single-Ended", "Differential Line", "Differential Mic"
};
-static const struct soc_enum linput_mode_enum =
- SOC_ENUM_SINGLE(WM8903_ANALOGUE_LEFT_INPUT_1, 0, 3, input_mode_text);
+static SOC_ENUM_SINGLE_DECL(linput_mode_enum,
+ WM8903_ANALOGUE_LEFT_INPUT_1, 0, input_mode_text);
-static const struct soc_enum rinput_mode_enum =
- SOC_ENUM_SINGLE(WM8903_ANALOGUE_RIGHT_INPUT_1, 0, 3, input_mode_text);
+static SOC_ENUM_SINGLE_DECL(rinput_mode_enum,
+ WM8903_ANALOGUE_RIGHT_INPUT_1, 0, input_mode_text);
static const char *linput_mux_text[] = {
"IN1L", "IN2L", "IN3L"
};
-static const struct soc_enum linput_enum =
- SOC_ENUM_SINGLE(WM8903_ANALOGUE_LEFT_INPUT_1, 2, 3, linput_mux_text);
+static SOC_ENUM_SINGLE_DECL(linput_enum,
+ WM8903_ANALOGUE_LEFT_INPUT_1, 2, linput_mux_text);
-static const struct soc_enum linput_inv_enum =
- SOC_ENUM_SINGLE(WM8903_ANALOGUE_LEFT_INPUT_1, 4, 3, linput_mux_text);
+static SOC_ENUM_SINGLE_DECL(linput_inv_enum,
+ WM8903_ANALOGUE_LEFT_INPUT_1, 4, linput_mux_text);
static const char *rinput_mux_text[] = {
"IN1R", "IN2R", "IN3R"
};
-static const struct soc_enum rinput_enum =
- SOC_ENUM_SINGLE(WM8903_ANALOGUE_RIGHT_INPUT_1, 2, 3, rinput_mux_text);
+static SOC_ENUM_SINGLE_DECL(rinput_enum,
+ WM8903_ANALOGUE_RIGHT_INPUT_1, 2, rinput_mux_text);
-static const struct soc_enum rinput_inv_enum =
- SOC_ENUM_SINGLE(WM8903_ANALOGUE_RIGHT_INPUT_1, 4, 3, rinput_mux_text);
+static SOC_ENUM_SINGLE_DECL(rinput_inv_enum,
+ WM8903_ANALOGUE_RIGHT_INPUT_1, 4, rinput_mux_text);
+static const char *sidetone_text[] = {
+ "None", "Left", "Right"
+};
+
+static SOC_ENUM_SINGLE_DECL(lsidetone_enum,
+ WM8903_DAC_DIGITAL_0, 2, sidetone_text);
+
+static SOC_ENUM_SINGLE_DECL(rsidetone_enum,
+ WM8903_DAC_DIGITAL_0, 0, sidetone_text);
+
+static const char *adcinput_text[] = {
+ "ADC", "DMIC"
+};
+
+static SOC_ENUM_SINGLE_DECL(adcinput_enum,
+ WM8903_CLOCK_RATE_TEST_4, 9, adcinput_text);
+
+static const char *aif_text[] = {
+ "Left", "Right"
+};
+
+static SOC_ENUM_SINGLE_DECL(lcapture_enum,
+ WM8903_AUDIO_INTERFACE_0, 7, aif_text);
+
+static SOC_ENUM_SINGLE_DECL(rcapture_enum,
+ WM8903_AUDIO_INTERFACE_0, 6, aif_text);
+
+static SOC_ENUM_SINGLE_DECL(lplay_enum,
+ WM8903_AUDIO_INTERFACE_0, 5, aif_text);
+
+static SOC_ENUM_SINGLE_DECL(rplay_enum,
+ WM8903_AUDIO_INTERFACE_0, 4, aif_text);
+
static const struct snd_kcontrol_new wm8903_snd_controls[] = {
/* Input PGAs - No TLV since the scale depends on PGA mode */
@@ -675,10 +656,13 @@ SOC_SINGLE("Right Input PGA Common Mode Switch", WM8903_ANALOGUE_RIGHT_INPUT_1,
6, 1, 0),
/* ADCs */
+SOC_ENUM("ADC OSR", adc_osr),
+SOC_SINGLE("HPF Switch", WM8903_ADC_DIGITAL_0, 4, 1, 0),
+SOC_ENUM("HPF Mode", hpf_mode),
SOC_SINGLE("DRC Switch", WM8903_DRC_0, 15, 1, 0),
SOC_ENUM("DRC Compressor Slope R0", drc_slope_r0),
SOC_ENUM("DRC Compressor Slope R1", drc_slope_r1),
-SOC_SINGLE_TLV("DRC Compressor Threashold Volume", WM8903_DRC_3, 5, 124, 1,
+SOC_SINGLE_TLV("DRC Compressor Threshold Volume", WM8903_DRC_3, 5, 124, 1,
drc_tlv_thresh),
SOC_SINGLE_TLV("DRC Volume", WM8903_DRC_3, 0, 30, 1, drc_tlv_amp),
SOC_SINGLE_TLV("DRC Minimum Gain Volume", WM8903_DRC_1, 2, 3, 1, drc_tlv_min),
@@ -688,29 +672,34 @@ SOC_ENUM("DRC Decay Rate", drc_decay),
SOC_ENUM("DRC FF Delay", drc_ff_delay),
SOC_SINGLE("DRC Anticlip Switch", WM8903_DRC_0, 1, 1, 0),
SOC_SINGLE("DRC QR Switch", WM8903_DRC_0, 2, 1, 0),
-SOC_SINGLE_TLV("DRC QR Threashold Volume", WM8903_DRC_0, 6, 3, 0, drc_tlv_max),
+SOC_SINGLE_TLV("DRC QR Threshold Volume", WM8903_DRC_0, 6, 3, 0, drc_tlv_max),
SOC_ENUM("DRC QR Decay Rate", drc_qr_decay),
SOC_SINGLE("DRC Smoothing Switch", WM8903_DRC_0, 3, 1, 0),
SOC_SINGLE("DRC Smoothing Hysteresis Switch", WM8903_DRC_0, 0, 1, 0),
-SOC_ENUM("DRC Smoothing Threashold", drc_smoothing),
+SOC_ENUM("DRC Smoothing Threshold", drc_smoothing),
SOC_SINGLE_TLV("DRC Startup Volume", WM8903_DRC_0, 6, 18, 0, drc_tlv_startup),
SOC_DOUBLE_R_TLV("Digital Capture Volume", WM8903_ADC_DIGITAL_VOLUME_LEFT,
- WM8903_ADC_DIGITAL_VOLUME_RIGHT, 1, 96, 0, digital_tlv),
+ WM8903_ADC_DIGITAL_VOLUME_RIGHT, 1, 120, 0, digital_tlv),
SOC_ENUM("ADC Companding Mode", adc_companding),
SOC_SINGLE("ADC Companding Switch", WM8903_AUDIO_INTERFACE_0, 3, 1, 0),
+SOC_DOUBLE_TLV("Digital Sidetone Volume", WM8903_DAC_DIGITAL_0, 4, 8,
+ 12, 0, digital_sidetone_tlv),
+
/* DAC */
+SOC_ENUM("DAC OSR", dac_osr),
SOC_DOUBLE_R_TLV("Digital Playback Volume", WM8903_DAC_DIGITAL_VOLUME_LEFT,
WM8903_DAC_DIGITAL_VOLUME_RIGHT, 1, 120, 0, digital_tlv),
SOC_ENUM("DAC Soft Mute Rate", soft_mute),
SOC_ENUM("DAC Mute Mode", mute_mode),
SOC_SINGLE("DAC Mono Switch", WM8903_DAC_DIGITAL_1, 12, 1, 0),
-SOC_ENUM("DAC De-emphasis", dac_deemphasis),
-SOC_SINGLE("DAC Sloping Stopband Filter Switch",
- WM8903_DAC_DIGITAL_1, 11, 1, 0),
SOC_ENUM("DAC Companding Mode", dac_companding),
SOC_SINGLE("DAC Companding Switch", WM8903_AUDIO_INTERFACE_0, 1, 1, 0),
+SOC_SINGLE_TLV("DAC Boost Volume", WM8903_AUDIO_INTERFACE_0, 9, 3, 0,
+ dac_boost_tlv),
+SOC_SINGLE_BOOL_EXT("Playback Deemphasis Switch", 0,
+ wm8903_get_deemph, wm8903_put_deemph),
/* Headphones */
SOC_DOUBLE_R("Headphone Switch",
@@ -762,6 +751,27 @@ static const struct snd_kcontrol_new rinput_mux =
static const struct snd_kcontrol_new rinput_inv_mux =
SOC_DAPM_ENUM("Right Inverting Input Mux", rinput_inv_enum);
+static const struct snd_kcontrol_new lsidetone_mux =
+ SOC_DAPM_ENUM("DACL Sidetone Mux", lsidetone_enum);
+
+static const struct snd_kcontrol_new rsidetone_mux =
+ SOC_DAPM_ENUM("DACR Sidetone Mux", rsidetone_enum);
+
+static const struct snd_kcontrol_new adcinput_mux =
+ SOC_DAPM_ENUM("ADC Input", adcinput_enum);
+
+static const struct snd_kcontrol_new lcapture_mux =
+ SOC_DAPM_ENUM("Left Capture Mux", lcapture_enum);
+
+static const struct snd_kcontrol_new rcapture_mux =
+ SOC_DAPM_ENUM("Right Capture Mux", rcapture_enum);
+
+static const struct snd_kcontrol_new lplay_mux =
+ SOC_DAPM_ENUM("Left Playback Mux", lplay_enum);
+
+static const struct snd_kcontrol_new rplay_mux =
+ SOC_DAPM_ENUM("Right Playback Mux", rplay_enum);
+
static const struct snd_kcontrol_new left_output_mixer[] = {
SOC_DAPM_SINGLE("DACL Switch", WM8903_ANALOGUE_LEFT_MIX_0, 3, 1, 0),
SOC_DAPM_SINGLE("DACR Switch", WM8903_ANALOGUE_LEFT_MIX_0, 2, 1, 0),
@@ -800,6 +810,7 @@ SND_SOC_DAPM_INPUT("IN2L"),
SND_SOC_DAPM_INPUT("IN2R"),
SND_SOC_DAPM_INPUT("IN3L"),
SND_SOC_DAPM_INPUT("IN3R"),
+SND_SOC_DAPM_INPUT("DMICDAT"),
SND_SOC_DAPM_OUTPUT("HPOUTL"),
SND_SOC_DAPM_OUTPUT("HPOUTR"),
@@ -810,7 +821,7 @@ SND_SOC_DAPM_OUTPUT("LON"),
SND_SOC_DAPM_OUTPUT("ROP"),
SND_SOC_DAPM_OUTPUT("RON"),
-SND_SOC_DAPM_MICBIAS("Mic Bias", WM8903_MIC_BIAS_CONTROL_0, 0, 0),
+SND_SOC_DAPM_SUPPLY("MICBIAS", WM8903_MIC_BIAS_CONTROL_0, 0, 0, NULL, 0),
SND_SOC_DAPM_MUX("Left Input Mux", SND_SOC_NOPM, 0, 0, &linput_mux),
SND_SOC_DAPM_MUX("Left Input Inverting Mux", SND_SOC_NOPM, 0, 0,
@@ -825,11 +836,29 @@ SND_SOC_DAPM_MUX("Right Input Mode Mux", SND_SOC_NOPM, 0, 0, &rinput_mode_mux),
SND_SOC_DAPM_PGA("Left Input PGA", WM8903_POWER_MANAGEMENT_0, 1, 0, NULL, 0),
SND_SOC_DAPM_PGA("Right Input PGA", WM8903_POWER_MANAGEMENT_0, 0, 0, NULL, 0),
-SND_SOC_DAPM_ADC("ADCL", "Left HiFi Capture", WM8903_POWER_MANAGEMENT_6, 1, 0),
-SND_SOC_DAPM_ADC("ADCR", "Right HiFi Capture", WM8903_POWER_MANAGEMENT_6, 0, 0),
+SND_SOC_DAPM_MUX("Left ADC Input", SND_SOC_NOPM, 0, 0, &adcinput_mux),
+SND_SOC_DAPM_MUX("Right ADC Input", SND_SOC_NOPM, 0, 0, &adcinput_mux),
+
+SND_SOC_DAPM_ADC("ADCL", NULL, WM8903_POWER_MANAGEMENT_6, 1, 0),
+SND_SOC_DAPM_ADC("ADCR", NULL, WM8903_POWER_MANAGEMENT_6, 0, 0),
+
+SND_SOC_DAPM_MUX("Left Capture Mux", SND_SOC_NOPM, 0, 0, &lcapture_mux),
+SND_SOC_DAPM_MUX("Right Capture Mux", SND_SOC_NOPM, 0, 0, &rcapture_mux),
+
+SND_SOC_DAPM_AIF_OUT("AIFTXL", "Left HiFi Capture", 0, SND_SOC_NOPM, 0, 0),
+SND_SOC_DAPM_AIF_OUT("AIFTXR", "Right HiFi Capture", 0, SND_SOC_NOPM, 0, 0),
+
+SND_SOC_DAPM_MUX("DACL Sidetone", SND_SOC_NOPM, 0, 0, &lsidetone_mux),
+SND_SOC_DAPM_MUX("DACR Sidetone", SND_SOC_NOPM, 0, 0, &rsidetone_mux),
-SND_SOC_DAPM_DAC("DACL", "Left Playback", WM8903_POWER_MANAGEMENT_6, 3, 0),
-SND_SOC_DAPM_DAC("DACR", "Right Playback", WM8903_POWER_MANAGEMENT_6, 2, 0),
+SND_SOC_DAPM_AIF_IN("AIFRXL", "Left Playback", 0, SND_SOC_NOPM, 0, 0),
+SND_SOC_DAPM_AIF_IN("AIFRXR", "Right Playback", 0, SND_SOC_NOPM, 0, 0),
+
+SND_SOC_DAPM_MUX("Left Playback Mux", SND_SOC_NOPM, 0, 0, &lplay_mux),
+SND_SOC_DAPM_MUX("Right Playback Mux", SND_SOC_NOPM, 0, 0, &rplay_mux),
+
+SND_SOC_DAPM_DAC("DACL", NULL, WM8903_POWER_MANAGEMENT_6, 3, 0),
+SND_SOC_DAPM_DAC("DACR", NULL, WM8903_POWER_MANAGEMENT_6, 2, 0),
SND_SOC_DAPM_MIXER("Left Output Mixer", WM8903_POWER_MANAGEMENT_1, 1, 0,
left_output_mixer, ARRAY_SIZE(left_output_mixer)),
@@ -841,32 +870,71 @@ SND_SOC_DAPM_MIXER("Left Speaker Mixer", WM8903_POWER_MANAGEMENT_4, 1, 0,
SND_SOC_DAPM_MIXER("Right Speaker Mixer", WM8903_POWER_MANAGEMENT_4, 0, 0,
right_speaker_mixer, ARRAY_SIZE(right_speaker_mixer)),
-SND_SOC_DAPM_PGA_E("Left Headphone Output PGA", WM8903_POWER_MANAGEMENT_2,
- 1, 0, NULL, 0, wm8903_output_event,
- SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
- SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD),
-SND_SOC_DAPM_PGA_E("Right Headphone Output PGA", WM8903_POWER_MANAGEMENT_2,
- 0, 0, NULL, 0, wm8903_output_event,
- SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
- SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD),
-
-SND_SOC_DAPM_PGA_E("Left Line Output PGA", WM8903_POWER_MANAGEMENT_3, 1, 0,
- NULL, 0, wm8903_output_event,
- SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
- SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD),
-SND_SOC_DAPM_PGA_E("Right Line Output PGA", WM8903_POWER_MANAGEMENT_3, 0, 0,
- NULL, 0, wm8903_output_event,
- SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
- SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD),
+SND_SOC_DAPM_PGA_S("Left Headphone Output PGA", 0, WM8903_POWER_MANAGEMENT_2,
+ 1, 0, NULL, 0),
+SND_SOC_DAPM_PGA_S("Right Headphone Output PGA", 0, WM8903_POWER_MANAGEMENT_2,
+ 0, 0, NULL, 0),
+
+SND_SOC_DAPM_PGA_S("Left Line Output PGA", 0, WM8903_POWER_MANAGEMENT_3, 1, 0,
+ NULL, 0),
+SND_SOC_DAPM_PGA_S("Right Line Output PGA", 0, WM8903_POWER_MANAGEMENT_3, 0, 0,
+ NULL, 0),
+
+SND_SOC_DAPM_PGA_S("HPL_RMV_SHORT", 4, WM8903_ANALOGUE_HP_0, 7, 0, NULL, 0),
+SND_SOC_DAPM_PGA_S("HPL_ENA_OUTP", 3, WM8903_ANALOGUE_HP_0, 6, 0, NULL, 0),
+SND_SOC_DAPM_PGA_S("HPL_ENA_DLY", 2, WM8903_ANALOGUE_HP_0, 5, 0, NULL, 0),
+SND_SOC_DAPM_PGA_S("HPL_ENA", 1, WM8903_ANALOGUE_HP_0, 4, 0, NULL, 0),
+SND_SOC_DAPM_PGA_S("HPR_RMV_SHORT", 4, WM8903_ANALOGUE_HP_0, 3, 0, NULL, 0),
+SND_SOC_DAPM_PGA_S("HPR_ENA_OUTP", 3, WM8903_ANALOGUE_HP_0, 2, 0, NULL, 0),
+SND_SOC_DAPM_PGA_S("HPR_ENA_DLY", 2, WM8903_ANALOGUE_HP_0, 1, 0, NULL, 0),
+SND_SOC_DAPM_PGA_S("HPR_ENA", 1, WM8903_ANALOGUE_HP_0, 0, 0, NULL, 0),
+
+SND_SOC_DAPM_PGA_S("LINEOUTL_RMV_SHORT", 4, WM8903_ANALOGUE_LINEOUT_0, 7, 0,
+ NULL, 0),
+SND_SOC_DAPM_PGA_S("LINEOUTL_ENA_OUTP", 3, WM8903_ANALOGUE_LINEOUT_0, 6, 0,
+ NULL, 0),
+SND_SOC_DAPM_PGA_S("LINEOUTL_ENA_DLY", 2, WM8903_ANALOGUE_LINEOUT_0, 5, 0,
+ NULL, 0),
+SND_SOC_DAPM_PGA_S("LINEOUTL_ENA", 1, WM8903_ANALOGUE_LINEOUT_0, 4, 0,
+ NULL, 0),
+SND_SOC_DAPM_PGA_S("LINEOUTR_RMV_SHORT", 4, WM8903_ANALOGUE_LINEOUT_0, 3, 0,
+ NULL, 0),
+SND_SOC_DAPM_PGA_S("LINEOUTR_ENA_OUTP", 3, WM8903_ANALOGUE_LINEOUT_0, 2, 0,
+ NULL, 0),
+SND_SOC_DAPM_PGA_S("LINEOUTR_ENA_DLY", 2, WM8903_ANALOGUE_LINEOUT_0, 1, 0,
+ NULL, 0),
+SND_SOC_DAPM_PGA_S("LINEOUTR_ENA", 1, WM8903_ANALOGUE_LINEOUT_0, 0, 0,
+ NULL, 0),
+
+SND_SOC_DAPM_SUPPLY("DCS Master", WM8903_DC_SERVO_0, 4, 0, NULL, 0),
+SND_SOC_DAPM_PGA_S("HPL_DCS", 3, SND_SOC_NOPM, 3, 0, wm8903_dcs_event,
+ SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
+SND_SOC_DAPM_PGA_S("HPR_DCS", 3, SND_SOC_NOPM, 2, 0, wm8903_dcs_event,
+ SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
+SND_SOC_DAPM_PGA_S("LINEOUTL_DCS", 3, SND_SOC_NOPM, 1, 0, wm8903_dcs_event,
+ SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
+SND_SOC_DAPM_PGA_S("LINEOUTR_DCS", 3, SND_SOC_NOPM, 0, 0, wm8903_dcs_event,
+ SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
SND_SOC_DAPM_PGA("Left Speaker PGA", WM8903_POWER_MANAGEMENT_5, 1, 0,
NULL, 0),
SND_SOC_DAPM_PGA("Right Speaker PGA", WM8903_POWER_MANAGEMENT_5, 0, 0,
NULL, 0),
+SND_SOC_DAPM_SUPPLY("Charge Pump", WM8903_CHARGE_PUMP_0, 0, 0,
+ wm8903_cp_event, SND_SOC_DAPM_POST_PMU),
+SND_SOC_DAPM_SUPPLY("CLK_DSP", WM8903_CLOCK_RATES_2, 1, 0, NULL, 0),
+SND_SOC_DAPM_SUPPLY("CLK_SYS", WM8903_CLOCK_RATES_2, 2, 0, NULL, 0),
};
-static const struct snd_soc_dapm_route intercon[] = {
+static const struct snd_soc_dapm_route wm8903_intercon[] = {
+
+ { "CLK_DSP", NULL, "CLK_SYS" },
+ { "MICBIAS", NULL, "CLK_SYS" },
+ { "HPL_DCS", NULL, "CLK_SYS" },
+ { "HPR_DCS", NULL, "CLK_SYS" },
+ { "LINEOUTL_DCS", NULL, "CLK_SYS" },
+ { "LINEOUTR_DCS", NULL, "CLK_SYS" },
{ "Left Input Mux", "IN1L", "IN1L" },
{ "Left Input Mux", "IN2L", "IN2L" },
@@ -908,8 +976,43 @@ static const struct snd_soc_dapm_route intercon[] = {
{ "Left Input PGA", NULL, "Left Input Mode Mux" },
{ "Right Input PGA", NULL, "Right Input Mode Mux" },
- { "ADCL", NULL, "Left Input PGA" },
- { "ADCR", NULL, "Right Input PGA" },
+ { "Left ADC Input", "ADC", "Left Input PGA" },
+ { "Left ADC Input", "DMIC", "DMICDAT" },
+ { "Right ADC Input", "ADC", "Right Input PGA" },
+ { "Right ADC Input", "DMIC", "DMICDAT" },
+
+ { "Left Capture Mux", "Left", "ADCL" },
+ { "Left Capture Mux", "Right", "ADCR" },
+
+ { "Right Capture Mux", "Left", "ADCL" },
+ { "Right Capture Mux", "Right", "ADCR" },
+
+ { "AIFTXL", NULL, "Left Capture Mux" },
+ { "AIFTXR", NULL, "Right Capture Mux" },
+
+ { "ADCL", NULL, "Left ADC Input" },
+ { "ADCL", NULL, "CLK_DSP" },
+ { "ADCR", NULL, "Right ADC Input" },
+ { "ADCR", NULL, "CLK_DSP" },
+
+ { "Left Playback Mux", "Left", "AIFRXL" },
+ { "Left Playback Mux", "Right", "AIFRXR" },
+
+ { "Right Playback Mux", "Left", "AIFRXL" },
+ { "Right Playback Mux", "Right", "AIFRXR" },
+
+ { "DACL Sidetone", "Left", "ADCL" },
+ { "DACL Sidetone", "Right", "ADCR" },
+ { "DACR Sidetone", "Left", "ADCL" },
+ { "DACR Sidetone", "Right", "ADCR" },
+
+ { "DACL", NULL, "Left Playback Mux" },
+ { "DACL", NULL, "DACL Sidetone" },
+ { "DACL", NULL, "CLK_DSP" },
+
+ { "DACR", NULL, "Right Playback Mux" },
+ { "DACR", NULL, "DACR Sidetone" },
+ { "DACR", NULL, "CLK_DSP" },
{ "Left Output Mixer", "Left Bypass Switch", "Left Input PGA" },
{ "Left Output Mixer", "Right Bypass Switch", "Right Input PGA" },
@@ -940,88 +1043,164 @@ static const struct snd_soc_dapm_route intercon[] = {
{ "Left Speaker PGA", NULL, "Left Speaker Mixer" },
{ "Right Speaker PGA", NULL, "Right Speaker Mixer" },
- { "HPOUTL", NULL, "Left Headphone Output PGA" },
- { "HPOUTR", NULL, "Right Headphone Output PGA" },
-
- { "LINEOUTL", NULL, "Left Line Output PGA" },
- { "LINEOUTR", NULL, "Right Line Output PGA" },
+ { "HPL_ENA", NULL, "Left Headphone Output PGA" },
+ { "HPR_ENA", NULL, "Right Headphone Output PGA" },
+ { "HPL_ENA_DLY", NULL, "HPL_ENA" },
+ { "HPR_ENA_DLY", NULL, "HPR_ENA" },
+ { "LINEOUTL_ENA", NULL, "Left Line Output PGA" },
+ { "LINEOUTR_ENA", NULL, "Right Line Output PGA" },
+ { "LINEOUTL_ENA_DLY", NULL, "LINEOUTL_ENA" },
+ { "LINEOUTR_ENA_DLY", NULL, "LINEOUTR_ENA" },
+
+ { "HPL_DCS", NULL, "DCS Master" },
+ { "HPR_DCS", NULL, "DCS Master" },
+ { "LINEOUTL_DCS", NULL, "DCS Master" },
+ { "LINEOUTR_DCS", NULL, "DCS Master" },
+
+ { "HPL_DCS", NULL, "HPL_ENA_DLY" },
+ { "HPR_DCS", NULL, "HPR_ENA_DLY" },
+ { "LINEOUTL_DCS", NULL, "LINEOUTL_ENA_DLY" },
+ { "LINEOUTR_DCS", NULL, "LINEOUTR_ENA_DLY" },
+
+ { "HPL_ENA_OUTP", NULL, "HPL_DCS" },
+ { "HPR_ENA_OUTP", NULL, "HPR_DCS" },
+ { "LINEOUTL_ENA_OUTP", NULL, "LINEOUTL_DCS" },
+ { "LINEOUTR_ENA_OUTP", NULL, "LINEOUTR_DCS" },
+
+ { "HPL_RMV_SHORT", NULL, "HPL_ENA_OUTP" },
+ { "HPR_RMV_SHORT", NULL, "HPR_ENA_OUTP" },
+ { "LINEOUTL_RMV_SHORT", NULL, "LINEOUTL_ENA_OUTP" },
+ { "LINEOUTR_RMV_SHORT", NULL, "LINEOUTR_ENA_OUTP" },
+
+ { "HPOUTL", NULL, "HPL_RMV_SHORT" },
+ { "HPOUTR", NULL, "HPR_RMV_SHORT" },
+ { "LINEOUTL", NULL, "LINEOUTL_RMV_SHORT" },
+ { "LINEOUTR", NULL, "LINEOUTR_RMV_SHORT" },
{ "LOP", NULL, "Left Speaker PGA" },
{ "LON", NULL, "Left Speaker PGA" },
{ "ROP", NULL, "Right Speaker PGA" },
{ "RON", NULL, "Right Speaker PGA" },
-};
-
-static int wm8903_add_widgets(struct snd_soc_codec *codec)
-{
- snd_soc_dapm_new_controls(codec, wm8903_dapm_widgets,
- ARRAY_SIZE(wm8903_dapm_widgets));
- snd_soc_dapm_add_routes(codec, intercon, ARRAY_SIZE(intercon));
+ { "Charge Pump", NULL, "CLK_DSP" },
- snd_soc_dapm_new_widgets(codec);
-
- return 0;
-}
+ { "Left Headphone Output PGA", NULL, "Charge Pump" },
+ { "Right Headphone Output PGA", NULL, "Charge Pump" },
+ { "Left Line Output PGA", NULL, "Charge Pump" },
+ { "Right Line Output PGA", NULL, "Charge Pump" },
+};
static int wm8903_set_bias_level(struct snd_soc_codec *codec,
enum snd_soc_bias_level level)
{
- struct i2c_client *i2c = codec->control_data;
- u16 reg, reg2;
-
switch (level) {
case SND_SOC_BIAS_ON:
+ break;
+
case SND_SOC_BIAS_PREPARE:
- reg = wm8903_read(codec, WM8903_VMID_CONTROL_0);
- reg &= ~(WM8903_VMID_RES_MASK);
- reg |= WM8903_VMID_RES_50K;
- wm8903_write(codec, WM8903_VMID_CONTROL_0, reg);
+ snd_soc_update_bits(codec, WM8903_VMID_CONTROL_0,
+ WM8903_VMID_RES_MASK,
+ WM8903_VMID_RES_50K);
break;
case SND_SOC_BIAS_STANDBY:
- if (codec->bias_level == SND_SOC_BIAS_OFF) {
- wm8903_write(codec, WM8903_CLOCK_RATES_2,
- WM8903_CLK_SYS_ENA);
-
- wm8903_run_sequence(codec, 0);
- wm8903_sync_reg_cache(codec, codec->reg_cache);
-
- /* Enable low impedence charge pump output */
- reg = wm8903_read(codec,
- WM8903_CONTROL_INTERFACE_TEST_1);
- wm8903_write(codec, WM8903_CONTROL_INTERFACE_TEST_1,
- reg | WM8903_TEST_KEY);
- reg2 = wm8903_read(codec, WM8903_CHARGE_PUMP_TEST_1);
- wm8903_write(codec, WM8903_CHARGE_PUMP_TEST_1,
- reg2 | WM8903_CP_SW_KELVIN_MODE_MASK);
- wm8903_write(codec, WM8903_CONTROL_INTERFACE_TEST_1,
- reg);
+ if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
+ snd_soc_update_bits(codec, WM8903_BIAS_CONTROL_0,
+ WM8903_POBCTRL | WM8903_ISEL_MASK |
+ WM8903_STARTUP_BIAS_ENA |
+ WM8903_BIAS_ENA,
+ WM8903_POBCTRL |
+ (2 << WM8903_ISEL_SHIFT) |
+ WM8903_STARTUP_BIAS_ENA);
+
+ snd_soc_update_bits(codec,
+ WM8903_ANALOGUE_SPK_OUTPUT_CONTROL_0,
+ WM8903_SPK_DISCHARGE,
+ WM8903_SPK_DISCHARGE);
+
+ msleep(33);
+
+ snd_soc_update_bits(codec, WM8903_POWER_MANAGEMENT_5,
+ WM8903_SPKL_ENA | WM8903_SPKR_ENA,
+ WM8903_SPKL_ENA | WM8903_SPKR_ENA);
+
+ snd_soc_update_bits(codec,
+ WM8903_ANALOGUE_SPK_OUTPUT_CONTROL_0,
+ WM8903_SPK_DISCHARGE, 0);
+
+ snd_soc_update_bits(codec, WM8903_VMID_CONTROL_0,
+ WM8903_VMID_TIE_ENA |
+ WM8903_BUFIO_ENA |
+ WM8903_VMID_IO_ENA |
+ WM8903_VMID_SOFT_MASK |
+ WM8903_VMID_RES_MASK |
+ WM8903_VMID_BUF_ENA,
+ WM8903_VMID_TIE_ENA |
+ WM8903_BUFIO_ENA |
+ WM8903_VMID_IO_ENA |
+ (2 << WM8903_VMID_SOFT_SHIFT) |
+ WM8903_VMID_RES_250K |
+ WM8903_VMID_BUF_ENA);
+
+ msleep(129);
+
+ snd_soc_update_bits(codec, WM8903_POWER_MANAGEMENT_5,
+ WM8903_SPKL_ENA | WM8903_SPKR_ENA,
+ 0);
+
+ snd_soc_update_bits(codec, WM8903_VMID_CONTROL_0,
+ WM8903_VMID_SOFT_MASK, 0);
+
+ snd_soc_update_bits(codec, WM8903_VMID_CONTROL_0,
+ WM8903_VMID_RES_MASK,
+ WM8903_VMID_RES_50K);
+
+ snd_soc_update_bits(codec, WM8903_BIAS_CONTROL_0,
+ WM8903_BIAS_ENA | WM8903_POBCTRL,
+ WM8903_BIAS_ENA);
/* By default no bypass paths are enabled so
* enable Class W support.
*/
- dev_dbg(&i2c->dev, "Enabling Class W\n");
- wm8903_write(codec, WM8903_CLASS_W_0, reg |
- WM8903_CP_DYN_FREQ | WM8903_CP_DYN_V);
+ dev_dbg(codec->dev, "Enabling Class W\n");
+ snd_soc_update_bits(codec, WM8903_CLASS_W_0,
+ WM8903_CP_DYN_FREQ |
+ WM8903_CP_DYN_V,
+ WM8903_CP_DYN_FREQ |
+ WM8903_CP_DYN_V);
}
- reg = wm8903_read(codec, WM8903_VMID_CONTROL_0);
- reg &= ~(WM8903_VMID_RES_MASK);
- reg |= WM8903_VMID_RES_250K;
- wm8903_write(codec, WM8903_VMID_CONTROL_0, reg);
+ snd_soc_update_bits(codec, WM8903_VMID_CONTROL_0,
+ WM8903_VMID_RES_MASK,
+ WM8903_VMID_RES_250K);
break;
case SND_SOC_BIAS_OFF:
- wm8903_run_sequence(codec, 32);
- reg = wm8903_read(codec, WM8903_CLOCK_RATES_2);
- reg &= ~WM8903_CLK_SYS_ENA;
- wm8903_write(codec, WM8903_CLOCK_RATES_2, reg);
+ snd_soc_update_bits(codec, WM8903_BIAS_CONTROL_0,
+ WM8903_BIAS_ENA, 0);
+
+ snd_soc_update_bits(codec, WM8903_VMID_CONTROL_0,
+ WM8903_VMID_SOFT_MASK,
+ 2 << WM8903_VMID_SOFT_SHIFT);
+
+ snd_soc_update_bits(codec, WM8903_VMID_CONTROL_0,
+ WM8903_VMID_BUF_ENA, 0);
+
+ msleep(290);
+
+ snd_soc_update_bits(codec, WM8903_VMID_CONTROL_0,
+ WM8903_VMID_TIE_ENA | WM8903_BUFIO_ENA |
+ WM8903_VMID_IO_ENA | WM8903_VMID_RES_MASK |
+ WM8903_VMID_SOFT_MASK |
+ WM8903_VMID_BUF_ENA, 0);
+
+ snd_soc_update_bits(codec, WM8903_BIAS_CONTROL_0,
+ WM8903_STARTUP_BIAS_ENA, 0);
break;
}
- codec->bias_level = level;
+ codec->dapm.bias_level = level;
return 0;
}
@@ -1030,7 +1209,7 @@ static int wm8903_set_dai_sysclk(struct snd_soc_dai *codec_dai,
int clk_id, unsigned int freq, int dir)
{
struct snd_soc_codec *codec = codec_dai->codec;
- struct wm8903_priv *wm8903 = codec->private_data;
+ struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
wm8903->sysclk = freq;
@@ -1041,7 +1220,7 @@ static int wm8903_set_dai_fmt(struct snd_soc_dai *codec_dai,
unsigned int fmt)
{
struct snd_soc_codec *codec = codec_dai->codec;
- u16 aif1 = wm8903_read(codec, WM8903_AUDIO_INTERFACE_1);
+ u16 aif1 = snd_soc_read(codec, WM8903_AUDIO_INTERFACE_1);
aif1 &= ~(WM8903_LRCLK_DIR | WM8903_BCLK_DIR | WM8903_AIF_FMT_MASK |
WM8903_AIF_LRCLK_INV | WM8903_AIF_BCLK_INV);
@@ -1119,7 +1298,7 @@ static int wm8903_set_dai_fmt(struct snd_soc_dai *codec_dai,
return -EINVAL;
}
- wm8903_write(codec, WM8903_AUDIO_INTERFACE_1, aif1);
+ snd_soc_write(codec, WM8903_AUDIO_INTERFACE_1, aif1);
return 0;
}
@@ -1129,14 +1308,14 @@ static int wm8903_digital_mute(struct snd_soc_dai *codec_dai, int mute)
struct snd_soc_codec *codec = codec_dai->codec;
u16 reg;
- reg = wm8903_read(codec, WM8903_DAC_DIGITAL_1);
+ reg = snd_soc_read(codec, WM8903_DAC_DIGITAL_1);
if (mute)
reg |= WM8903_DAC_MUTE;
else
reg &= ~WM8903_DAC_MUTE;
- wm8903_write(codec, WM8903_DAC_DIGITAL_1, reg);
+ snd_soc_write(codec, WM8903_DAC_DIGITAL_1, reg);
return 0;
}
@@ -1215,22 +1394,18 @@ static struct {
int div;
} bclk_divs[] = {
{ 10, 0 },
- { 15, 1 },
{ 20, 2 },
{ 30, 3 },
{ 40, 4 },
{ 50, 5 },
- { 55, 6 },
{ 60, 7 },
{ 80, 8 },
{ 100, 9 },
- { 110, 10 },
{ 120, 11 },
{ 160, 12 },
{ 200, 13 },
{ 220, 14 },
{ 240, 15 },
- { 250, 16 },
{ 300, 17 },
{ 320, 18 },
{ 440, 19 },
@@ -1256,76 +1431,12 @@ static struct {
{ 0, 0 },
};
-static int wm8903_startup(struct snd_pcm_substream *substream,
- struct snd_soc_dai *dai)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_device *socdev = rtd->socdev;
- struct snd_soc_codec *codec = socdev->card->codec;
- struct wm8903_priv *wm8903 = codec->private_data;
- struct i2c_client *i2c = codec->control_data;
- struct snd_pcm_runtime *master_runtime;
-
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
- wm8903->playback_active++;
- else
- wm8903->capture_active++;
-
- /* The DAI has shared clocks so if we already have a playback or
- * capture going then constrain this substream to match it.
- */
- if (wm8903->master_substream) {
- master_runtime = wm8903->master_substream->runtime;
-
- dev_dbg(&i2c->dev, "Constraining to %d bits at %dHz\n",
- master_runtime->sample_bits,
- master_runtime->rate);
-
- snd_pcm_hw_constraint_minmax(substream->runtime,
- SNDRV_PCM_HW_PARAM_RATE,
- master_runtime->rate,
- master_runtime->rate);
-
- snd_pcm_hw_constraint_minmax(substream->runtime,
- SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
- master_runtime->sample_bits,
- master_runtime->sample_bits);
-
- wm8903->slave_substream = substream;
- } else
- wm8903->master_substream = substream;
-
- return 0;
-}
-
-static void wm8903_shutdown(struct snd_pcm_substream *substream,
- struct snd_soc_dai *dai)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_device *socdev = rtd->socdev;
- struct snd_soc_codec *codec = socdev->card->codec;
- struct wm8903_priv *wm8903 = codec->private_data;
-
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
- wm8903->playback_active--;
- else
- wm8903->capture_active--;
-
- if (wm8903->master_substream == substream)
- wm8903->master_substream = wm8903->slave_substream;
-
- wm8903->slave_substream = NULL;
-}
-
static int wm8903_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_device *socdev = rtd->socdev;
- struct snd_soc_codec *codec = socdev->card->codec;
- struct wm8903_priv *wm8903 = codec->private_data;
- struct i2c_client *i2c = codec->control_data;
+ struct snd_soc_codec *codec = dai->codec;
+ struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
int fs = params_rate(params);
int bclk;
int bclk_div;
@@ -1336,16 +1447,18 @@ static int wm8903_hw_params(struct snd_pcm_substream *substream,
int cur_val;
int clk_sys;
- u16 aif1 = wm8903_read(codec, WM8903_AUDIO_INTERFACE_1);
- u16 aif2 = wm8903_read(codec, WM8903_AUDIO_INTERFACE_2);
- u16 aif3 = wm8903_read(codec, WM8903_AUDIO_INTERFACE_3);
- u16 clock0 = wm8903_read(codec, WM8903_CLOCK_RATES_0);
- u16 clock1 = wm8903_read(codec, WM8903_CLOCK_RATES_1);
+ u16 aif1 = snd_soc_read(codec, WM8903_AUDIO_INTERFACE_1);
+ u16 aif2 = snd_soc_read(codec, WM8903_AUDIO_INTERFACE_2);
+ u16 aif3 = snd_soc_read(codec, WM8903_AUDIO_INTERFACE_3);
+ u16 clock0 = snd_soc_read(codec, WM8903_CLOCK_RATES_0);
+ u16 clock1 = snd_soc_read(codec, WM8903_CLOCK_RATES_1);
+ u16 dac_digital1 = snd_soc_read(codec, WM8903_DAC_DIGITAL_1);
- if (substream == wm8903->slave_substream) {
- dev_dbg(&i2c->dev, "Ignoring hw_params for slave substream\n");
- return 0;
- }
+ /* Enable sloping stopband filter for low sample rates */
+ if (fs <= 24000)
+ dac_digital1 |= WM8903_DAC_SB_FILT;
+ else
+ dac_digital1 &= ~WM8903_DAC_SB_FILT;
/* Configure sample rate logic for DSP - choose nearest rate */
dsp_config = 0;
@@ -1358,20 +1471,7 @@ static int wm8903_hw_params(struct snd_pcm_substream *substream,
}
}
- /* Constraints should stop us hitting this but let's make sure */
- if (wm8903->capture_active)
- switch (sample_rates[dsp_config].rate) {
- case 88200:
- case 96000:
- dev_err(&i2c->dev, "%dHz unsupported by ADC\n",
- fs);
- return -EINVAL;
-
- default:
- break;
- }
-
- dev_dbg(&i2c->dev, "DSP fs = %dHz\n", sample_rates[dsp_config].rate);
+ dev_dbg(codec->dev, "DSP fs = %dHz\n", sample_rates[dsp_config].rate);
clock1 &= ~WM8903_SAMPLE_RATE_MASK;
clock1 |= sample_rates[dsp_config].value;
@@ -1397,7 +1497,7 @@ static int wm8903_hw_params(struct snd_pcm_substream *substream,
return -EINVAL;
}
- dev_dbg(&i2c->dev, "MCLK = %dHz, target sample rate = %dHz\n",
+ dev_dbg(codec->dev, "MCLK = %dHz, target sample rate = %dHz\n",
wm8903->sysclk, fs);
/* We may not have an MCLK which allows us to generate exactly
@@ -1432,12 +1532,12 @@ static int wm8903_hw_params(struct snd_pcm_substream *substream,
clock1 |= clk_sys_ratios[clk_config].rate << WM8903_CLK_SYS_RATE_SHIFT;
clock1 |= clk_sys_ratios[clk_config].mode << WM8903_CLK_SYS_MODE_SHIFT;
- dev_dbg(&i2c->dev, "CLK_SYS_RATE=%x, CLK_SYS_MODE=%x div=%d\n",
+ dev_dbg(codec->dev, "CLK_SYS_RATE=%x, CLK_SYS_MODE=%x div=%d\n",
clk_sys_ratios[clk_config].rate,
clk_sys_ratios[clk_config].mode,
clk_sys_ratios[clk_config].div);
- dev_dbg(&i2c->dev, "Actual CLK_SYS = %dHz\n", clk_sys);
+ dev_dbg(codec->dev, "Actual CLK_SYS = %dHz\n", clk_sys);
/* We may not get quite the right frequency if using
* approximate clocks so look for the closest match that is
@@ -1459,21 +1559,155 @@ static int wm8903_hw_params(struct snd_pcm_substream *substream,
aif2 &= ~WM8903_BCLK_DIV_MASK;
aif3 &= ~WM8903_LRCLK_RATE_MASK;
- dev_dbg(&i2c->dev, "BCLK ratio %d for %dHz - actual BCLK = %dHz\n",
+ dev_dbg(codec->dev, "BCLK ratio %d for %dHz - actual BCLK = %dHz\n",
bclk_divs[bclk_div].ratio / 10, bclk,
(clk_sys * 10) / bclk_divs[bclk_div].ratio);
aif2 |= bclk_divs[bclk_div].div;
aif3 |= bclk / fs;
- wm8903_write(codec, WM8903_CLOCK_RATES_0, clock0);
- wm8903_write(codec, WM8903_CLOCK_RATES_1, clock1);
- wm8903_write(codec, WM8903_AUDIO_INTERFACE_1, aif1);
- wm8903_write(codec, WM8903_AUDIO_INTERFACE_2, aif2);
- wm8903_write(codec, WM8903_AUDIO_INTERFACE_3, aif3);
+ wm8903->fs = params_rate(params);
+ wm8903_set_deemph(codec);
+
+ snd_soc_write(codec, WM8903_CLOCK_RATES_0, clock0);
+ snd_soc_write(codec, WM8903_CLOCK_RATES_1, clock1);
+ snd_soc_write(codec, WM8903_AUDIO_INTERFACE_1, aif1);
+ snd_soc_write(codec, WM8903_AUDIO_INTERFACE_2, aif2);
+ snd_soc_write(codec, WM8903_AUDIO_INTERFACE_3, aif3);
+ snd_soc_write(codec, WM8903_DAC_DIGITAL_1, dac_digital1);
+
+ return 0;
+}
+
+/**
+ * wm8903_mic_detect - Enable microphone detection via the WM8903 IRQ
+ *
+ * @codec: WM8903 codec
+ * @jack: jack to report detection events on
+ * @det: value to report for presence detection
+ * @shrt: value to report for short detection
+ *
+ * Enable microphone detection via IRQ on the WM8903. If GPIOs are
+ * being used to bring out signals to the processor then only platform
+ * data configuration is needed for WM8903 and processor GPIOs should
+ * be configured using snd_soc_jack_add_gpios() instead.
+ *
+ * The current threasholds for detection should be configured using
+ * micdet_cfg in the platform data. Using this function will force on
+ * the microphone bias for the device.
+ */
+int wm8903_mic_detect(struct snd_soc_codec *codec, struct snd_soc_jack *jack,
+ int det, int shrt)
+{
+ struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
+ int irq_mask = WM8903_MICDET_EINT | WM8903_MICSHRT_EINT;
+
+ dev_dbg(codec->dev, "Enabling microphone detection: %x %x\n",
+ det, shrt);
+
+ /* Store the configuration */
+ wm8903->mic_jack = jack;
+ wm8903->mic_det = det;
+ wm8903->mic_short = shrt;
+
+ /* Enable interrupts we've got a report configured for */
+ if (det)
+ irq_mask &= ~WM8903_MICDET_EINT;
+ if (shrt)
+ irq_mask &= ~WM8903_MICSHRT_EINT;
+
+ snd_soc_update_bits(codec, WM8903_INTERRUPT_STATUS_1_MASK,
+ WM8903_MICDET_EINT | WM8903_MICSHRT_EINT,
+ irq_mask);
+
+ if (det || shrt) {
+ /* Enable mic detection, this may not have been set through
+ * platform data (eg, if the defaults are OK). */
+ snd_soc_update_bits(codec, WM8903_WRITE_SEQUENCER_0,
+ WM8903_WSEQ_ENA, WM8903_WSEQ_ENA);
+ snd_soc_update_bits(codec, WM8903_MIC_BIAS_CONTROL_0,
+ WM8903_MICDET_ENA, WM8903_MICDET_ENA);
+ } else {
+ snd_soc_update_bits(codec, WM8903_MIC_BIAS_CONTROL_0,
+ WM8903_MICDET_ENA, 0);
+ }
return 0;
}
+EXPORT_SYMBOL_GPL(wm8903_mic_detect);
+
+static irqreturn_t wm8903_irq(int irq, void *data)
+{
+ struct wm8903_priv *wm8903 = data;
+ int mic_report, ret;
+ unsigned int int_val, mask, int_pol;
+
+ ret = regmap_read(wm8903->regmap, WM8903_INTERRUPT_STATUS_1_MASK,
+ &mask);
+ if (ret != 0) {
+ dev_err(wm8903->dev, "Failed to read IRQ mask: %d\n", ret);
+ return IRQ_NONE;
+ }
+
+ ret = regmap_read(wm8903->regmap, WM8903_INTERRUPT_STATUS_1, &int_val);
+ if (ret != 0) {
+ dev_err(wm8903->dev, "Failed to read IRQ status: %d\n", ret);
+ return IRQ_NONE;
+ }
+
+ int_val &= ~mask;
+
+ if (int_val & WM8903_WSEQ_BUSY_EINT) {
+ dev_warn(wm8903->dev, "Write sequencer done\n");
+ }
+
+ /*
+ * The rest is microphone jack detection. We need to manually
+ * invert the polarity of the interrupt after each event - to
+ * simplify the code keep track of the last state we reported
+ * and just invert the relevant bits in both the report and
+ * the polarity register.
+ */
+ mic_report = wm8903->mic_last_report;
+ ret = regmap_read(wm8903->regmap, WM8903_INTERRUPT_POLARITY_1,
+ &int_pol);
+ if (ret != 0) {
+ dev_err(wm8903->dev, "Failed to read interrupt polarity: %d\n",
+ ret);
+ return IRQ_HANDLED;
+ }
+
+#ifndef CONFIG_SND_SOC_WM8903_MODULE
+ if (int_val & (WM8903_MICSHRT_EINT | WM8903_MICDET_EINT))
+ trace_snd_soc_jack_irq(dev_name(wm8903->dev));
+#endif
+
+ if (int_val & WM8903_MICSHRT_EINT) {
+ dev_dbg(wm8903->dev, "Microphone short (pol=%x)\n", int_pol);
+
+ mic_report ^= wm8903->mic_short;
+ int_pol ^= WM8903_MICSHRT_INV;
+ }
+
+ if (int_val & WM8903_MICDET_EINT) {
+ dev_dbg(wm8903->dev, "Microphone detect (pol=%x)\n", int_pol);
+
+ mic_report ^= wm8903->mic_det;
+ int_pol ^= WM8903_MICDET_INV;
+
+ msleep(wm8903->mic_delay);
+ }
+
+ regmap_update_bits(wm8903->regmap, WM8903_INTERRUPT_POLARITY_1,
+ WM8903_MICSHRT_INV | WM8903_MICDET_INV, int_pol);
+
+ snd_soc_jack_report(wm8903->mic_jack, mic_report,
+ wm8903->mic_short | wm8903->mic_det);
+
+ wm8903->mic_last_report = mic_report;
+
+ return IRQ_HANDLED;
+}
#define WM8903_PLAYBACK_RATES (SNDRV_PCM_RATE_8000 |\
SNDRV_PCM_RATE_11025 | \
@@ -1497,17 +1731,15 @@ static int wm8903_hw_params(struct snd_pcm_substream *substream,
SNDRV_PCM_FMTBIT_S20_3LE |\
SNDRV_PCM_FMTBIT_S24_LE)
-static struct snd_soc_dai_ops wm8903_dai_ops = {
- .startup = wm8903_startup,
- .shutdown = wm8903_shutdown,
+static const struct snd_soc_dai_ops wm8903_dai_ops = {
.hw_params = wm8903_hw_params,
.digital_mute = wm8903_digital_mute,
.set_fmt = wm8903_set_dai_fmt,
.set_sysclk = wm8903_set_dai_sysclk,
};
-struct snd_soc_dai wm8903_dai = {
- .name = "WM8903",
+static struct snd_soc_dai_driver wm8903_dai = {
+ .name = "wm8903-hifi",
.playback = {
.stream_name = "Playback",
.channels_min = 2,
@@ -1523,260 +1755,487 @@ struct snd_soc_dai wm8903_dai = {
.formats = WM8903_FORMATS,
},
.ops = &wm8903_dai_ops,
+ .symmetric_rates = 1,
};
-EXPORT_SYMBOL_GPL(wm8903_dai);
-static int wm8903_suspend(struct platform_device *pdev, pm_message_t state)
+static int wm8903_suspend(struct snd_soc_codec *codec)
{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct snd_soc_codec *codec = socdev->card->codec;
-
wm8903_set_bias_level(codec, SND_SOC_BIAS_OFF);
return 0;
}
-static int wm8903_resume(struct platform_device *pdev)
+static int wm8903_resume(struct snd_soc_codec *codec)
{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct snd_soc_codec *codec = socdev->card->codec;
- struct i2c_client *i2c = codec->control_data;
- int i;
- u16 *reg_cache = codec->reg_cache;
- u16 *tmp_cache = kmemdup(codec->reg_cache, sizeof(wm8903_reg_defaults),
- GFP_KERNEL);
+ struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
+
+ regcache_sync(wm8903->regmap);
- /* Bring the codec back up to standby first to minimise pop/clicks */
wm8903_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
- wm8903_set_bias_level(codec, codec->suspend_bias_level);
- /* Sync back everything else */
- if (tmp_cache) {
- for (i = 2; i < ARRAY_SIZE(wm8903_reg_defaults); i++)
- if (tmp_cache[i] != reg_cache[i])
- wm8903_write(codec, i, tmp_cache[i]);
- } else {
- dev_err(&i2c->dev, "Failed to allocate temporary cache\n");
- }
+ return 0;
+}
+
+#ifdef CONFIG_GPIOLIB
+static inline struct wm8903_priv *gpio_to_wm8903(struct gpio_chip *chip)
+{
+ return container_of(chip, struct wm8903_priv, gpio_chip);
+}
+
+static int wm8903_gpio_request(struct gpio_chip *chip, unsigned offset)
+{
+ if (offset >= WM8903_NUM_GPIO)
+ return -EINVAL;
return 0;
}
-static struct snd_soc_codec *wm8903_codec;
+static int wm8903_gpio_direction_in(struct gpio_chip *chip, unsigned offset)
+{
+ struct wm8903_priv *wm8903 = gpio_to_wm8903(chip);
+ unsigned int mask, val;
+ int ret;
+
+ mask = WM8903_GP1_FN_MASK | WM8903_GP1_DIR_MASK;
+ val = (WM8903_GPn_FN_GPIO_INPUT << WM8903_GP1_FN_SHIFT) |
+ WM8903_GP1_DIR;
+
+ ret = regmap_update_bits(wm8903->regmap,
+ WM8903_GPIO_CONTROL_1 + offset, mask, val);
+ if (ret < 0)
+ return ret;
-static __devinit int wm8903_i2c_probe(struct i2c_client *i2c,
- const struct i2c_device_id *id)
+ return 0;
+}
+
+static int wm8903_gpio_get(struct gpio_chip *chip, unsigned offset)
{
- struct wm8903_priv *wm8903;
- struct snd_soc_codec *codec;
+ struct wm8903_priv *wm8903 = gpio_to_wm8903(chip);
+ unsigned int reg;
+
+ regmap_read(wm8903->regmap, WM8903_GPIO_CONTROL_1 + offset, &reg);
+
+ return (reg & WM8903_GP1_LVL_MASK) >> WM8903_GP1_LVL_SHIFT;
+}
+
+static int wm8903_gpio_direction_out(struct gpio_chip *chip,
+ unsigned offset, int value)
+{
+ struct wm8903_priv *wm8903 = gpio_to_wm8903(chip);
+ unsigned int mask, val;
int ret;
- u16 val;
- wm8903 = kzalloc(sizeof(struct wm8903_priv), GFP_KERNEL);
- if (wm8903 == NULL)
- return -ENOMEM;
+ mask = WM8903_GP1_FN_MASK | WM8903_GP1_DIR_MASK | WM8903_GP1_LVL_MASK;
+ val = (WM8903_GPn_FN_GPIO_OUTPUT << WM8903_GP1_FN_SHIFT) |
+ (value << WM8903_GP2_LVL_SHIFT);
- codec = &wm8903->codec;
-
- mutex_init(&codec->mutex);
- INIT_LIST_HEAD(&codec->dapm_widgets);
- INIT_LIST_HEAD(&codec->dapm_paths);
-
- codec->dev = &i2c->dev;
- codec->name = "WM8903";
- codec->owner = THIS_MODULE;
- codec->read = wm8903_read;
- codec->write = wm8903_write;
- codec->hw_write = (hw_write_t)i2c_master_send;
- codec->bias_level = SND_SOC_BIAS_OFF;
- codec->set_bias_level = wm8903_set_bias_level;
- codec->dai = &wm8903_dai;
- codec->num_dai = 1;
- codec->reg_cache_size = ARRAY_SIZE(wm8903->reg_cache);
- codec->reg_cache = &wm8903->reg_cache[0];
- codec->private_data = wm8903;
-
- i2c_set_clientdata(i2c, codec);
- codec->control_data = i2c;
-
- val = wm8903_hw_read(codec, WM8903_SW_RESET_AND_ID);
- if (val != wm8903_reg_defaults[WM8903_SW_RESET_AND_ID]) {
- dev_err(&i2c->dev,
- "Device with ID register %x is not a WM8903\n", val);
- return -ENODEV;
- }
+ ret = regmap_update_bits(wm8903->regmap,
+ WM8903_GPIO_CONTROL_1 + offset, mask, val);
+ if (ret < 0)
+ return ret;
- val = wm8903_read(codec, WM8903_REVISION_NUMBER);
- dev_info(&i2c->dev, "WM8903 revision %d\n",
- val & WM8903_CHIP_REV_MASK);
+ return 0;
+}
- wm8903_reset(codec);
+static void wm8903_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
+{
+ struct wm8903_priv *wm8903 = gpio_to_wm8903(chip);
- /* power on device */
- wm8903_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
+ regmap_update_bits(wm8903->regmap, WM8903_GPIO_CONTROL_1 + offset,
+ WM8903_GP1_LVL_MASK,
+ !!value << WM8903_GP1_LVL_SHIFT);
+}
- /* Latch volume update bits */
- val = wm8903_read(codec, WM8903_ADC_DIGITAL_VOLUME_LEFT);
- val |= WM8903_ADCVU;
- wm8903_write(codec, WM8903_ADC_DIGITAL_VOLUME_LEFT, val);
- wm8903_write(codec, WM8903_ADC_DIGITAL_VOLUME_RIGHT, val);
-
- val = wm8903_read(codec, WM8903_DAC_DIGITAL_VOLUME_LEFT);
- val |= WM8903_DACVU;
- wm8903_write(codec, WM8903_DAC_DIGITAL_VOLUME_LEFT, val);
- wm8903_write(codec, WM8903_DAC_DIGITAL_VOLUME_RIGHT, val);
-
- val = wm8903_read(codec, WM8903_ANALOGUE_OUT1_LEFT);
- val |= WM8903_HPOUTVU;
- wm8903_write(codec, WM8903_ANALOGUE_OUT1_LEFT, val);
- wm8903_write(codec, WM8903_ANALOGUE_OUT1_RIGHT, val);
-
- val = wm8903_read(codec, WM8903_ANALOGUE_OUT2_LEFT);
- val |= WM8903_LINEOUTVU;
- wm8903_write(codec, WM8903_ANALOGUE_OUT2_LEFT, val);
- wm8903_write(codec, WM8903_ANALOGUE_OUT2_RIGHT, val);
-
- val = wm8903_read(codec, WM8903_ANALOGUE_OUT3_LEFT);
- val |= WM8903_SPKVU;
- wm8903_write(codec, WM8903_ANALOGUE_OUT3_LEFT, val);
- wm8903_write(codec, WM8903_ANALOGUE_OUT3_RIGHT, val);
+static struct gpio_chip wm8903_template_chip = {
+ .label = "wm8903",
+ .owner = THIS_MODULE,
+ .request = wm8903_gpio_request,
+ .direction_input = wm8903_gpio_direction_in,
+ .get = wm8903_gpio_get,
+ .direction_output = wm8903_gpio_direction_out,
+ .set = wm8903_gpio_set,
+ .can_sleep = 1,
+};
- /* Enable DAC soft mute by default */
- val = wm8903_read(codec, WM8903_DAC_DIGITAL_1);
- val |= WM8903_DAC_MUTEMODE;
- wm8903_write(codec, WM8903_DAC_DIGITAL_1, val);
+static void wm8903_init_gpio(struct wm8903_priv *wm8903)
+{
+ struct wm8903_platform_data *pdata = wm8903->pdata;
+ int ret;
- wm8903_dai.dev = &i2c->dev;
- wm8903_codec = codec;
+ wm8903->gpio_chip = wm8903_template_chip;
+ wm8903->gpio_chip.ngpio = WM8903_NUM_GPIO;
+ wm8903->gpio_chip.dev = wm8903->dev;
- ret = snd_soc_register_codec(codec);
- if (ret != 0) {
- dev_err(&i2c->dev, "Failed to register codec: %d\n", ret);
- goto err;
- }
+ if (pdata->gpio_base)
+ wm8903->gpio_chip.base = pdata->gpio_base;
+ else
+ wm8903->gpio_chip.base = -1;
- ret = snd_soc_register_dai(&wm8903_dai);
- if (ret != 0) {
- dev_err(&i2c->dev, "Failed to register DAI: %d\n", ret);
- goto err_codec;
- }
+ ret = gpiochip_add(&wm8903->gpio_chip);
+ if (ret != 0)
+ dev_err(wm8903->dev, "Failed to add GPIOs: %d\n", ret);
+}
- return ret;
+static void wm8903_free_gpio(struct wm8903_priv *wm8903)
+{
+ int ret;
-err_codec:
- snd_soc_unregister_codec(codec);
-err:
- wm8903_codec = NULL;
- kfree(wm8903);
- return ret;
+ ret = gpiochip_remove(&wm8903->gpio_chip);
+ if (ret != 0)
+ dev_err(wm8903->dev, "Failed to remove GPIOs: %d\n", ret);
+}
+#else
+static void wm8903_init_gpio(struct wm8903_priv *wm8903)
+{
}
-static __devexit int wm8903_i2c_remove(struct i2c_client *client)
+static void wm8903_free_gpio(struct wm8903_priv *wm8903)
{
- struct snd_soc_codec *codec = i2c_get_clientdata(client);
+}
+#endif
- snd_soc_unregister_dai(&wm8903_dai);
- snd_soc_unregister_codec(codec);
+static int wm8903_probe(struct snd_soc_codec *codec)
+{
+ struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
- wm8903_set_bias_level(codec, SND_SOC_BIAS_OFF);
+ wm8903->codec = codec;
- kfree(codec->private_data);
+ /* power on device */
+ wm8903_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
- wm8903_codec = NULL;
- wm8903_dai.dev = NULL;
+ return 0;
+}
+
+/* power down chip */
+static int wm8903_remove(struct snd_soc_codec *codec)
+{
+ wm8903_set_bias_level(codec, SND_SOC_BIAS_OFF);
return 0;
}
-/* i2c codec control layer */
-static const struct i2c_device_id wm8903_i2c_id[] = {
- { "wm8903", 0 },
- { }
+static struct snd_soc_codec_driver soc_codec_dev_wm8903 = {
+ .probe = wm8903_probe,
+ .remove = wm8903_remove,
+ .suspend = wm8903_suspend,
+ .resume = wm8903_resume,
+ .set_bias_level = wm8903_set_bias_level,
+ .seq_notifier = wm8903_seq_notifier,
+ .controls = wm8903_snd_controls,
+ .num_controls = ARRAY_SIZE(wm8903_snd_controls),
+ .dapm_widgets = wm8903_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(wm8903_dapm_widgets),
+ .dapm_routes = wm8903_intercon,
+ .num_dapm_routes = ARRAY_SIZE(wm8903_intercon),
};
-MODULE_DEVICE_TABLE(i2c, wm8903_i2c_id);
-static struct i2c_driver wm8903_i2c_driver = {
- .driver = {
- .name = "WM8903",
- .owner = THIS_MODULE,
- },
- .probe = wm8903_i2c_probe,
- .remove = __devexit_p(wm8903_i2c_remove),
- .id_table = wm8903_i2c_id,
+static const struct regmap_config wm8903_regmap = {
+ .reg_bits = 8,
+ .val_bits = 16,
+
+ .max_register = WM8903_MAX_REGISTER,
+ .volatile_reg = wm8903_volatile_register,
+ .readable_reg = wm8903_readable_register,
+
+ .cache_type = REGCACHE_RBTREE,
+ .reg_defaults = wm8903_reg_defaults,
+ .num_reg_defaults = ARRAY_SIZE(wm8903_reg_defaults),
};
-static int wm8903_probe(struct platform_device *pdev)
+static int wm8903_set_pdata_irq_trigger(struct i2c_client *i2c,
+ struct wm8903_platform_data *pdata)
{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- int ret = 0;
+ struct irq_data *irq_data = irq_get_irq_data(i2c->irq);
+ if (!irq_data) {
+ dev_err(&i2c->dev, "Invalid IRQ: %d\n",
+ i2c->irq);
+ return -EINVAL;
+ }
- if (!wm8903_codec) {
- dev_err(&pdev->dev, "I2C device not yet probed\n");
- goto err;
+ switch (irqd_get_trigger_type(irq_data)) {
+ case IRQ_TYPE_NONE:
+ default:
+ /*
+ * We assume the controller imposes no restrictions,
+ * so we are able to select active-high
+ */
+ /* Fall-through */
+ case IRQ_TYPE_LEVEL_HIGH:
+ pdata->irq_active_low = false;
+ break;
+ case IRQ_TYPE_LEVEL_LOW:
+ pdata->irq_active_low = true;
+ break;
}
- socdev->card->codec = wm8903_codec;
+ return 0;
+}
- /* register pcms */
- ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
- if (ret < 0) {
- dev_err(&pdev->dev, "failed to create pcms\n");
+static int wm8903_set_pdata_from_of(struct i2c_client *i2c,
+ struct wm8903_platform_data *pdata)
+{
+ const struct device_node *np = i2c->dev.of_node;
+ u32 val32;
+ int i;
+
+ if (of_property_read_u32(np, "micdet-cfg", &val32) >= 0)
+ pdata->micdet_cfg = val32;
+
+ if (of_property_read_u32(np, "micdet-delay", &val32) >= 0)
+ pdata->micdet_delay = val32;
+
+ if (of_property_read_u32_array(np, "gpio-cfg", pdata->gpio_cfg,
+ ARRAY_SIZE(pdata->gpio_cfg)) >= 0) {
+ /*
+ * In device tree: 0 means "write 0",
+ * 0xffffffff means "don't touch".
+ *
+ * In platform data: 0 means "don't touch",
+ * 0x8000 means "write 0".
+ *
+ * Note: WM8903_GPIO_CONFIG_ZERO == 0x8000.
+ *
+ * Convert from DT to pdata representation here,
+ * so no other code needs to change.
+ */
+ for (i = 0; i < ARRAY_SIZE(pdata->gpio_cfg); i++) {
+ if (pdata->gpio_cfg[i] == 0) {
+ pdata->gpio_cfg[i] = WM8903_GPIO_CONFIG_ZERO;
+ } else if (pdata->gpio_cfg[i] == 0xffffffff) {
+ pdata->gpio_cfg[i] = 0;
+ } else if (pdata->gpio_cfg[i] > 0x7fff) {
+ dev_err(&i2c->dev, "Invalid gpio-cfg[%d] %x\n",
+ i, pdata->gpio_cfg[i]);
+ return -EINVAL;
+ }
+ }
+ }
+
+ return 0;
+}
+
+static int wm8903_i2c_probe(struct i2c_client *i2c,
+ const struct i2c_device_id *id)
+{
+ struct wm8903_platform_data *pdata = dev_get_platdata(&i2c->dev);
+ struct wm8903_priv *wm8903;
+ int trigger;
+ bool mic_gpio = false;
+ unsigned int val, irq_pol;
+ int ret, i;
+
+ wm8903 = devm_kzalloc(&i2c->dev, sizeof(struct wm8903_priv),
+ GFP_KERNEL);
+ if (wm8903 == NULL)
+ return -ENOMEM;
+ wm8903->dev = &i2c->dev;
+
+ wm8903->regmap = devm_regmap_init_i2c(i2c, &wm8903_regmap);
+ if (IS_ERR(wm8903->regmap)) {
+ ret = PTR_ERR(wm8903->regmap);
+ dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
+ ret);
+ return ret;
+ }
+
+ i2c_set_clientdata(i2c, wm8903);
+
+ /* If no platform data was supplied, create storage for defaults */
+ if (pdata) {
+ wm8903->pdata = pdata;
+ } else {
+ wm8903->pdata = devm_kzalloc(&i2c->dev,
+ sizeof(struct wm8903_platform_data),
+ GFP_KERNEL);
+ if (wm8903->pdata == NULL) {
+ dev_err(&i2c->dev, "Failed to allocate pdata\n");
+ return -ENOMEM;
+ }
+
+ if (i2c->irq) {
+ ret = wm8903_set_pdata_irq_trigger(i2c, wm8903->pdata);
+ if (ret != 0)
+ return ret;
+ }
+
+ if (i2c->dev.of_node) {
+ ret = wm8903_set_pdata_from_of(i2c, wm8903->pdata);
+ if (ret != 0)
+ return ret;
+ }
+ }
+
+ pdata = wm8903->pdata;
+
+ ret = regmap_read(wm8903->regmap, WM8903_SW_RESET_AND_ID, &val);
+ if (ret != 0) {
+ dev_err(&i2c->dev, "Failed to read chip ID: %d\n", ret);
goto err;
}
+ if (val != 0x8903) {
+ dev_err(&i2c->dev, "Device with ID %x is not a WM8903\n", val);
+ ret = -ENODEV;
+ goto err;
+ }
+
+ ret = regmap_read(wm8903->regmap, WM8903_REVISION_NUMBER, &val);
+ if (ret != 0) {
+ dev_err(&i2c->dev, "Failed to read chip revision: %d\n", ret);
+ goto err;
+ }
+ dev_info(&i2c->dev, "WM8903 revision %c\n",
+ (val & WM8903_CHIP_REV_MASK) + 'A');
+
+ /* Reset the device */
+ regmap_write(wm8903->regmap, WM8903_SW_RESET_AND_ID, 0x8903);
- snd_soc_add_controls(socdev->card->codec, wm8903_snd_controls,
- ARRAY_SIZE(wm8903_snd_controls));
- wm8903_add_widgets(socdev->card->codec);
+ wm8903_init_gpio(wm8903);
- ret = snd_soc_init_card(socdev);
- if (ret < 0) {
- dev_err(&pdev->dev, "wm8903: failed to register card\n");
- goto card_err;
+ /* Set up GPIO pin state, detect if any are MIC detect outputs */
+ for (i = 0; i < ARRAY_SIZE(pdata->gpio_cfg); i++) {
+ if ((!pdata->gpio_cfg[i]) ||
+ (pdata->gpio_cfg[i] > WM8903_GPIO_CONFIG_ZERO))
+ continue;
+
+ regmap_write(wm8903->regmap, WM8903_GPIO_CONTROL_1 + i,
+ pdata->gpio_cfg[i] & 0x7fff);
+
+ val = (pdata->gpio_cfg[i] & WM8903_GP1_FN_MASK)
+ >> WM8903_GP1_FN_SHIFT;
+
+ switch (val) {
+ case WM8903_GPn_FN_MICBIAS_CURRENT_DETECT:
+ case WM8903_GPn_FN_MICBIAS_SHORT_DETECT:
+ mic_gpio = true;
+ break;
+ default:
+ break;
+ }
}
- return ret;
+ /* Set up microphone detection */
+ regmap_write(wm8903->regmap, WM8903_MIC_BIAS_CONTROL_0,
+ pdata->micdet_cfg);
+
+ /* Microphone detection needs the WSEQ clock */
+ if (pdata->micdet_cfg)
+ regmap_update_bits(wm8903->regmap, WM8903_WRITE_SEQUENCER_0,
+ WM8903_WSEQ_ENA, WM8903_WSEQ_ENA);
+
+ /* If microphone detection is enabled by pdata but
+ * detected via IRQ then interrupts can be lost before
+ * the machine driver has set up microphone detection
+ * IRQs as the IRQs are clear on read. The detection
+ * will be enabled when the machine driver configures.
+ */
+ WARN_ON(!mic_gpio && (pdata->micdet_cfg & WM8903_MICDET_ENA));
+
+ wm8903->mic_delay = pdata->micdet_delay;
+
+ if (i2c->irq) {
+ if (pdata->irq_active_low) {
+ trigger = IRQF_TRIGGER_LOW;
+ irq_pol = WM8903_IRQ_POL;
+ } else {
+ trigger = IRQF_TRIGGER_HIGH;
+ irq_pol = 0;
+ }
+
+ regmap_update_bits(wm8903->regmap, WM8903_INTERRUPT_CONTROL,
+ WM8903_IRQ_POL, irq_pol);
+
+ ret = request_threaded_irq(i2c->irq, NULL, wm8903_irq,
+ trigger | IRQF_ONESHOT,
+ "wm8903", wm8903);
+ if (ret != 0) {
+ dev_err(wm8903->dev, "Failed to request IRQ: %d\n",
+ ret);
+ return ret;
+ }
+
+ /* Enable write sequencer interrupts */
+ regmap_update_bits(wm8903->regmap,
+ WM8903_INTERRUPT_STATUS_1_MASK,
+ WM8903_IM_WSEQ_BUSY_EINT, 0);
+ }
+
+ /* Latch volume update bits */
+ regmap_update_bits(wm8903->regmap, WM8903_ADC_DIGITAL_VOLUME_LEFT,
+ WM8903_ADCVU, WM8903_ADCVU);
+ regmap_update_bits(wm8903->regmap, WM8903_ADC_DIGITAL_VOLUME_RIGHT,
+ WM8903_ADCVU, WM8903_ADCVU);
+
+ regmap_update_bits(wm8903->regmap, WM8903_DAC_DIGITAL_VOLUME_LEFT,
+ WM8903_DACVU, WM8903_DACVU);
+ regmap_update_bits(wm8903->regmap, WM8903_DAC_DIGITAL_VOLUME_RIGHT,
+ WM8903_DACVU, WM8903_DACVU);
+
+ regmap_update_bits(wm8903->regmap, WM8903_ANALOGUE_OUT1_LEFT,
+ WM8903_HPOUTVU, WM8903_HPOUTVU);
+ regmap_update_bits(wm8903->regmap, WM8903_ANALOGUE_OUT1_RIGHT,
+ WM8903_HPOUTVU, WM8903_HPOUTVU);
+
+ regmap_update_bits(wm8903->regmap, WM8903_ANALOGUE_OUT2_LEFT,
+ WM8903_LINEOUTVU, WM8903_LINEOUTVU);
+ regmap_update_bits(wm8903->regmap, WM8903_ANALOGUE_OUT2_RIGHT,
+ WM8903_LINEOUTVU, WM8903_LINEOUTVU);
+
+ regmap_update_bits(wm8903->regmap, WM8903_ANALOGUE_OUT3_LEFT,
+ WM8903_SPKVU, WM8903_SPKVU);
+ regmap_update_bits(wm8903->regmap, WM8903_ANALOGUE_OUT3_RIGHT,
+ WM8903_SPKVU, WM8903_SPKVU);
+
+ /* Enable DAC soft mute by default */
+ regmap_update_bits(wm8903->regmap, WM8903_DAC_DIGITAL_1,
+ WM8903_DAC_MUTEMODE | WM8903_DAC_MUTE,
+ WM8903_DAC_MUTEMODE | WM8903_DAC_MUTE);
+
+ ret = snd_soc_register_codec(&i2c->dev,
+ &soc_codec_dev_wm8903, &wm8903_dai, 1);
+ if (ret != 0)
+ goto err;
-card_err:
- snd_soc_free_pcms(socdev);
- snd_soc_dapm_free(socdev);
+ return 0;
err:
return ret;
}
-/* power down chip */
-static int wm8903_remove(struct platform_device *pdev)
+static int wm8903_i2c_remove(struct i2c_client *client)
{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct snd_soc_codec *codec = socdev->card->codec;
-
- if (codec->control_data)
- wm8903_set_bias_level(codec, SND_SOC_BIAS_OFF);
+ struct wm8903_priv *wm8903 = i2c_get_clientdata(client);
- snd_soc_free_pcms(socdev);
- snd_soc_dapm_free(socdev);
+ if (client->irq)
+ free_irq(client->irq, wm8903);
+ wm8903_free_gpio(wm8903);
+ snd_soc_unregister_codec(&client->dev);
return 0;
}
-struct snd_soc_codec_device soc_codec_dev_wm8903 = {
- .probe = wm8903_probe,
- .remove = wm8903_remove,
- .suspend = wm8903_suspend,
- .resume = wm8903_resume,
+static const struct of_device_id wm8903_of_match[] = {
+ { .compatible = "wlf,wm8903", },
+ {},
};
-EXPORT_SYMBOL_GPL(soc_codec_dev_wm8903);
+MODULE_DEVICE_TABLE(of, wm8903_of_match);
-static int __init wm8903_modinit(void)
-{
- return i2c_add_driver(&wm8903_i2c_driver);
-}
-module_init(wm8903_modinit);
+static const struct i2c_device_id wm8903_i2c_id[] = {
+ { "wm8903", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, wm8903_i2c_id);
-static void __exit wm8903_exit(void)
-{
- i2c_del_driver(&wm8903_i2c_driver);
-}
-module_exit(wm8903_exit);
+static struct i2c_driver wm8903_i2c_driver = {
+ .driver = {
+ .name = "wm8903",
+ .owner = THIS_MODULE,
+ .of_match_table = wm8903_of_match,
+ },
+ .probe = wm8903_i2c_probe,
+ .remove = wm8903_i2c_remove,
+ .id_table = wm8903_i2c_id,
+};
+
+module_i2c_driver(wm8903_i2c_driver);
MODULE_DESCRIPTION("ASoC WM8903 driver");
MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.cm>");
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-05 20:44:19 +0000