628 lines
20 KiB
C
628 lines
20 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* ALSA SoC WM9090 driver
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*
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* Copyright 2009-12 Wolfson Microelectronics
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*
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* Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
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*/
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#include <linux/module.h>
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#include <linux/errno.h>
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#include <linux/device.h>
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#include <linux/i2c.h>
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#include <linux/delay.h>
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#include <linux/regmap.h>
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#include <linux/slab.h>
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#include <sound/initval.h>
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#include <sound/soc.h>
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#include <sound/tlv.h>
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#include <sound/wm9090.h>
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#include "wm9090.h"
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static const struct reg_default wm9090_reg_defaults[] = {
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{ 1, 0x0006 }, /* R1 - Power Management (1) */
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{ 2, 0x6000 }, /* R2 - Power Management (2) */
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{ 3, 0x0000 }, /* R3 - Power Management (3) */
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{ 6, 0x01C0 }, /* R6 - Clocking 1 */
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{ 22, 0x0003 }, /* R22 - IN1 Line Control */
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{ 23, 0x0003 }, /* R23 - IN2 Line Control */
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{ 24, 0x0083 }, /* R24 - IN1 Line Input A Volume */
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{ 25, 0x0083 }, /* R25 - IN1 Line Input B Volume */
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{ 26, 0x0083 }, /* R26 - IN2 Line Input A Volume */
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{ 27, 0x0083 }, /* R27 - IN2 Line Input B Volume */
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{ 28, 0x002D }, /* R28 - Left Output Volume */
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{ 29, 0x002D }, /* R29 - Right Output Volume */
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{ 34, 0x0100 }, /* R34 - SPKMIXL Attenuation */
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{ 35, 0x0010 }, /* R36 - SPKOUT Mixers */
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{ 37, 0x0140 }, /* R37 - ClassD3 */
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{ 38, 0x0039 }, /* R38 - Speaker Volume Left */
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{ 45, 0x0000 }, /* R45 - Output Mixer1 */
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{ 46, 0x0000 }, /* R46 - Output Mixer2 */
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{ 47, 0x0100 }, /* R47 - Output Mixer3 */
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{ 48, 0x0100 }, /* R48 - Output Mixer4 */
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{ 54, 0x0000 }, /* R54 - Speaker Mixer */
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{ 57, 0x000D }, /* R57 - AntiPOP2 */
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{ 70, 0x0000 }, /* R70 - Write Sequencer 0 */
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{ 71, 0x0000 }, /* R71 - Write Sequencer 1 */
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{ 72, 0x0000 }, /* R72 - Write Sequencer 2 */
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{ 73, 0x0000 }, /* R73 - Write Sequencer 3 */
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{ 74, 0x0000 }, /* R74 - Write Sequencer 4 */
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{ 75, 0x0000 }, /* R75 - Write Sequencer 5 */
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{ 76, 0x1F25 }, /* R76 - Charge Pump 1 */
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{ 85, 0x054A }, /* R85 - DC Servo 1 */
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{ 87, 0x0000 }, /* R87 - DC Servo 3 */
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{ 96, 0x0100 }, /* R96 - Analogue HP 0 */
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{ 98, 0x8640 }, /* R98 - AGC Control 0 */
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{ 99, 0xC000 }, /* R99 - AGC Control 1 */
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{ 100, 0x0200 }, /* R100 - AGC Control 2 */
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};
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/* This struct is used to save the context */
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struct wm9090_priv {
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struct wm9090_platform_data pdata;
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struct regmap *regmap;
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};
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static bool wm9090_volatile(struct device *dev, unsigned int reg)
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{
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switch (reg) {
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case WM9090_SOFTWARE_RESET:
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case WM9090_DC_SERVO_0:
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case WM9090_DC_SERVO_READBACK_0:
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case WM9090_DC_SERVO_READBACK_1:
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case WM9090_DC_SERVO_READBACK_2:
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return true;
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default:
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return false;
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}
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}
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static bool wm9090_readable(struct device *dev, unsigned int reg)
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{
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switch (reg) {
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case WM9090_SOFTWARE_RESET:
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case WM9090_POWER_MANAGEMENT_1:
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case WM9090_POWER_MANAGEMENT_2:
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case WM9090_POWER_MANAGEMENT_3:
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case WM9090_CLOCKING_1:
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case WM9090_IN1_LINE_CONTROL:
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case WM9090_IN2_LINE_CONTROL:
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case WM9090_IN1_LINE_INPUT_A_VOLUME:
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case WM9090_IN1_LINE_INPUT_B_VOLUME:
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case WM9090_IN2_LINE_INPUT_A_VOLUME:
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case WM9090_IN2_LINE_INPUT_B_VOLUME:
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case WM9090_LEFT_OUTPUT_VOLUME:
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case WM9090_RIGHT_OUTPUT_VOLUME:
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case WM9090_SPKMIXL_ATTENUATION:
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case WM9090_SPKOUT_MIXERS:
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case WM9090_CLASSD3:
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case WM9090_SPEAKER_VOLUME_LEFT:
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case WM9090_OUTPUT_MIXER1:
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case WM9090_OUTPUT_MIXER2:
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case WM9090_OUTPUT_MIXER3:
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case WM9090_OUTPUT_MIXER4:
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case WM9090_SPEAKER_MIXER:
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case WM9090_ANTIPOP2:
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case WM9090_WRITE_SEQUENCER_0:
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case WM9090_WRITE_SEQUENCER_1:
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case WM9090_WRITE_SEQUENCER_2:
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case WM9090_WRITE_SEQUENCER_3:
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case WM9090_WRITE_SEQUENCER_4:
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case WM9090_WRITE_SEQUENCER_5:
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case WM9090_CHARGE_PUMP_1:
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case WM9090_DC_SERVO_0:
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case WM9090_DC_SERVO_1:
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case WM9090_DC_SERVO_3:
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case WM9090_DC_SERVO_READBACK_0:
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case WM9090_DC_SERVO_READBACK_1:
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case WM9090_DC_SERVO_READBACK_2:
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case WM9090_ANALOGUE_HP_0:
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case WM9090_AGC_CONTROL_0:
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case WM9090_AGC_CONTROL_1:
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case WM9090_AGC_CONTROL_2:
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return true;
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default:
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return false;
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}
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}
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static void wait_for_dc_servo(struct snd_soc_component *component)
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{
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unsigned int reg;
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int count = 0;
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dev_dbg(component->dev, "Waiting for DC servo...\n");
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do {
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count++;
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msleep(1);
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reg = snd_soc_component_read(component, WM9090_DC_SERVO_READBACK_0);
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dev_dbg(component->dev, "DC servo status: %x\n", reg);
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} while ((reg & WM9090_DCS_CAL_COMPLETE_MASK)
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!= WM9090_DCS_CAL_COMPLETE_MASK && count < 1000);
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if ((reg & WM9090_DCS_CAL_COMPLETE_MASK)
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!= WM9090_DCS_CAL_COMPLETE_MASK)
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dev_err(component->dev, "Timed out waiting for DC Servo\n");
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}
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static const DECLARE_TLV_DB_RANGE(in_tlv,
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0, 0, TLV_DB_SCALE_ITEM(-600, 0, 0),
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1, 3, TLV_DB_SCALE_ITEM(-350, 350, 0),
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4, 6, TLV_DB_SCALE_ITEM(600, 600, 0)
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);
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static const DECLARE_TLV_DB_RANGE(mix_tlv,
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0, 2, TLV_DB_SCALE_ITEM(-1200, 300, 0),
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3, 3, TLV_DB_SCALE_ITEM(0, 0, 0)
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);
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static const DECLARE_TLV_DB_SCALE(out_tlv, -5700, 100, 0);
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static const DECLARE_TLV_DB_RANGE(spkboost_tlv,
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0, 6, TLV_DB_SCALE_ITEM(0, 150, 0),
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7, 7, TLV_DB_SCALE_ITEM(1200, 0, 0)
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);
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static const struct snd_kcontrol_new wm9090_controls[] = {
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SOC_SINGLE_TLV("IN1A Volume", WM9090_IN1_LINE_INPUT_A_VOLUME, 0, 6, 0,
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in_tlv),
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SOC_SINGLE("IN1A Switch", WM9090_IN1_LINE_INPUT_A_VOLUME, 7, 1, 1),
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SOC_SINGLE("IN1A ZC Switch", WM9090_IN1_LINE_INPUT_A_VOLUME, 6, 1, 0),
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SOC_SINGLE_TLV("IN2A Volume", WM9090_IN2_LINE_INPUT_A_VOLUME, 0, 6, 0,
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in_tlv),
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SOC_SINGLE("IN2A Switch", WM9090_IN2_LINE_INPUT_A_VOLUME, 7, 1, 1),
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SOC_SINGLE("IN2A ZC Switch", WM9090_IN2_LINE_INPUT_A_VOLUME, 6, 1, 0),
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SOC_SINGLE("MIXOUTL Switch", WM9090_OUTPUT_MIXER3, 8, 1, 1),
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SOC_SINGLE_TLV("MIXOUTL IN1A Volume", WM9090_OUTPUT_MIXER3, 6, 3, 1,
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mix_tlv),
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SOC_SINGLE_TLV("MIXOUTL IN2A Volume", WM9090_OUTPUT_MIXER3, 2, 3, 1,
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mix_tlv),
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SOC_SINGLE("MIXOUTR Switch", WM9090_OUTPUT_MIXER4, 8, 1, 1),
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SOC_SINGLE_TLV("MIXOUTR IN1A Volume", WM9090_OUTPUT_MIXER4, 6, 3, 1,
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mix_tlv),
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SOC_SINGLE_TLV("MIXOUTR IN2A Volume", WM9090_OUTPUT_MIXER4, 2, 3, 1,
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mix_tlv),
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SOC_SINGLE("SPKMIX Switch", WM9090_SPKMIXL_ATTENUATION, 8, 1, 1),
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SOC_SINGLE_TLV("SPKMIX IN1A Volume", WM9090_SPKMIXL_ATTENUATION, 6, 3, 1,
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mix_tlv),
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SOC_SINGLE_TLV("SPKMIX IN2A Volume", WM9090_SPKMIXL_ATTENUATION, 2, 3, 1,
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mix_tlv),
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SOC_DOUBLE_R_TLV("Headphone Volume", WM9090_LEFT_OUTPUT_VOLUME,
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WM9090_RIGHT_OUTPUT_VOLUME, 0, 63, 0, out_tlv),
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SOC_DOUBLE_R("Headphone Switch", WM9090_LEFT_OUTPUT_VOLUME,
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WM9090_RIGHT_OUTPUT_VOLUME, 6, 1, 1),
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SOC_DOUBLE_R("Headphone ZC Switch", WM9090_LEFT_OUTPUT_VOLUME,
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WM9090_RIGHT_OUTPUT_VOLUME, 7, 1, 0),
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SOC_SINGLE_TLV("Speaker Volume", WM9090_SPEAKER_VOLUME_LEFT, 0, 63, 0,
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out_tlv),
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SOC_SINGLE("Speaker Switch", WM9090_SPEAKER_VOLUME_LEFT, 6, 1, 1),
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SOC_SINGLE("Speaker ZC Switch", WM9090_SPEAKER_VOLUME_LEFT, 7, 1, 0),
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SOC_SINGLE_TLV("Speaker Boost Volume", WM9090_CLASSD3, 3, 7, 0, spkboost_tlv),
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};
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static const struct snd_kcontrol_new wm9090_in1_se_controls[] = {
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SOC_SINGLE_TLV("IN1B Volume", WM9090_IN1_LINE_INPUT_B_VOLUME, 0, 6, 0,
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in_tlv),
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SOC_SINGLE("IN1B Switch", WM9090_IN1_LINE_INPUT_B_VOLUME, 7, 1, 1),
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SOC_SINGLE("IN1B ZC Switch", WM9090_IN1_LINE_INPUT_B_VOLUME, 6, 1, 0),
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SOC_SINGLE_TLV("SPKMIX IN1B Volume", WM9090_SPKMIXL_ATTENUATION, 4, 3, 1,
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mix_tlv),
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SOC_SINGLE_TLV("MIXOUTL IN1B Volume", WM9090_OUTPUT_MIXER3, 4, 3, 1,
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mix_tlv),
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SOC_SINGLE_TLV("MIXOUTR IN1B Volume", WM9090_OUTPUT_MIXER4, 4, 3, 1,
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mix_tlv),
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};
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static const struct snd_kcontrol_new wm9090_in2_se_controls[] = {
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SOC_SINGLE_TLV("IN2B Volume", WM9090_IN2_LINE_INPUT_B_VOLUME, 0, 6, 0,
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in_tlv),
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SOC_SINGLE("IN2B Switch", WM9090_IN2_LINE_INPUT_B_VOLUME, 7, 1, 1),
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SOC_SINGLE("IN2B ZC Switch", WM9090_IN2_LINE_INPUT_B_VOLUME, 6, 1, 0),
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SOC_SINGLE_TLV("SPKMIX IN2B Volume", WM9090_SPKMIXL_ATTENUATION, 0, 3, 1,
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mix_tlv),
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SOC_SINGLE_TLV("MIXOUTL IN2B Volume", WM9090_OUTPUT_MIXER3, 0, 3, 1,
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mix_tlv),
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SOC_SINGLE_TLV("MIXOUTR IN2B Volume", WM9090_OUTPUT_MIXER4, 0, 3, 1,
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mix_tlv),
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};
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static int hp_ev(struct snd_soc_dapm_widget *w,
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struct snd_kcontrol *kcontrol, int event)
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{
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struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
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unsigned int reg = snd_soc_component_read(component, WM9090_ANALOGUE_HP_0);
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switch (event) {
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case SND_SOC_DAPM_POST_PMU:
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snd_soc_component_update_bits(component, WM9090_CHARGE_PUMP_1,
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WM9090_CP_ENA, WM9090_CP_ENA);
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msleep(5);
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snd_soc_component_update_bits(component, WM9090_POWER_MANAGEMENT_1,
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WM9090_HPOUT1L_ENA | WM9090_HPOUT1R_ENA,
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WM9090_HPOUT1L_ENA | WM9090_HPOUT1R_ENA);
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reg |= WM9090_HPOUT1L_DLY | WM9090_HPOUT1R_DLY;
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snd_soc_component_write(component, WM9090_ANALOGUE_HP_0, reg);
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/* Start the DC servo. We don't currently use the
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* ability to save the state since we don't have full
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* control of the analogue paths and they can change
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* DC offsets; see the WM8904 driver for an example of
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* doing so.
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*/
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snd_soc_component_write(component, WM9090_DC_SERVO_0,
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WM9090_DCS_ENA_CHAN_0 |
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WM9090_DCS_ENA_CHAN_1 |
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WM9090_DCS_TRIG_STARTUP_1 |
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WM9090_DCS_TRIG_STARTUP_0);
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wait_for_dc_servo(component);
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reg |= WM9090_HPOUT1R_OUTP | WM9090_HPOUT1R_RMV_SHORT |
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WM9090_HPOUT1L_OUTP | WM9090_HPOUT1L_RMV_SHORT;
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snd_soc_component_write(component, WM9090_ANALOGUE_HP_0, reg);
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break;
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case SND_SOC_DAPM_PRE_PMD:
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reg &= ~(WM9090_HPOUT1L_RMV_SHORT |
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WM9090_HPOUT1L_DLY |
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WM9090_HPOUT1L_OUTP |
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WM9090_HPOUT1R_RMV_SHORT |
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WM9090_HPOUT1R_DLY |
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WM9090_HPOUT1R_OUTP);
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snd_soc_component_write(component, WM9090_ANALOGUE_HP_0, reg);
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snd_soc_component_write(component, WM9090_DC_SERVO_0, 0);
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snd_soc_component_update_bits(component, WM9090_POWER_MANAGEMENT_1,
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WM9090_HPOUT1L_ENA | WM9090_HPOUT1R_ENA,
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0);
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snd_soc_component_update_bits(component, WM9090_CHARGE_PUMP_1,
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WM9090_CP_ENA, 0);
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break;
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}
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return 0;
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}
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static const struct snd_kcontrol_new spkmix[] = {
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SOC_DAPM_SINGLE("IN1A Switch", WM9090_SPEAKER_MIXER, 6, 1, 0),
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SOC_DAPM_SINGLE("IN1B Switch", WM9090_SPEAKER_MIXER, 4, 1, 0),
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SOC_DAPM_SINGLE("IN2A Switch", WM9090_SPEAKER_MIXER, 2, 1, 0),
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SOC_DAPM_SINGLE("IN2B Switch", WM9090_SPEAKER_MIXER, 0, 1, 0),
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};
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static const struct snd_kcontrol_new spkout[] = {
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SOC_DAPM_SINGLE("Mixer Switch", WM9090_SPKOUT_MIXERS, 4, 1, 0),
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};
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static const struct snd_kcontrol_new mixoutl[] = {
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SOC_DAPM_SINGLE("IN1A Switch", WM9090_OUTPUT_MIXER1, 6, 1, 0),
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SOC_DAPM_SINGLE("IN1B Switch", WM9090_OUTPUT_MIXER1, 4, 1, 0),
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SOC_DAPM_SINGLE("IN2A Switch", WM9090_OUTPUT_MIXER1, 2, 1, 0),
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SOC_DAPM_SINGLE("IN2B Switch", WM9090_OUTPUT_MIXER1, 0, 1, 0),
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};
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static const struct snd_kcontrol_new mixoutr[] = {
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SOC_DAPM_SINGLE("IN1A Switch", WM9090_OUTPUT_MIXER2, 6, 1, 0),
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SOC_DAPM_SINGLE("IN1B Switch", WM9090_OUTPUT_MIXER2, 4, 1, 0),
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SOC_DAPM_SINGLE("IN2A Switch", WM9090_OUTPUT_MIXER2, 2, 1, 0),
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SOC_DAPM_SINGLE("IN2B Switch", WM9090_OUTPUT_MIXER2, 0, 1, 0),
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};
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static const struct snd_soc_dapm_widget wm9090_dapm_widgets[] = {
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SND_SOC_DAPM_INPUT("IN1+"),
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SND_SOC_DAPM_INPUT("IN1-"),
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SND_SOC_DAPM_INPUT("IN2+"),
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SND_SOC_DAPM_INPUT("IN2-"),
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SND_SOC_DAPM_SUPPLY("OSC", WM9090_POWER_MANAGEMENT_1, 3, 0, NULL, 0),
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SND_SOC_DAPM_PGA("IN1A PGA", WM9090_POWER_MANAGEMENT_2, 7, 0, NULL, 0),
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SND_SOC_DAPM_PGA("IN1B PGA", WM9090_POWER_MANAGEMENT_2, 6, 0, NULL, 0),
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SND_SOC_DAPM_PGA("IN2A PGA", WM9090_POWER_MANAGEMENT_2, 5, 0, NULL, 0),
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SND_SOC_DAPM_PGA("IN2B PGA", WM9090_POWER_MANAGEMENT_2, 4, 0, NULL, 0),
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SND_SOC_DAPM_MIXER("SPKMIX", WM9090_POWER_MANAGEMENT_3, 3, 0,
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spkmix, ARRAY_SIZE(spkmix)),
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SND_SOC_DAPM_MIXER("MIXOUTL", WM9090_POWER_MANAGEMENT_3, 5, 0,
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mixoutl, ARRAY_SIZE(mixoutl)),
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SND_SOC_DAPM_MIXER("MIXOUTR", WM9090_POWER_MANAGEMENT_3, 4, 0,
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mixoutr, ARRAY_SIZE(mixoutr)),
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SND_SOC_DAPM_PGA_E("HP PGA", SND_SOC_NOPM, 0, 0, NULL, 0,
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hp_ev, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
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SND_SOC_DAPM_PGA("SPKPGA", WM9090_POWER_MANAGEMENT_3, 8, 0, NULL, 0),
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SND_SOC_DAPM_MIXER("SPKOUT", WM9090_POWER_MANAGEMENT_1, 12, 0,
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spkout, ARRAY_SIZE(spkout)),
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SND_SOC_DAPM_OUTPUT("HPR"),
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SND_SOC_DAPM_OUTPUT("HPL"),
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SND_SOC_DAPM_OUTPUT("Speaker"),
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};
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static const struct snd_soc_dapm_route audio_map[] = {
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{ "IN1A PGA", NULL, "IN1+" },
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{ "IN2A PGA", NULL, "IN2+" },
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{ "SPKMIX", "IN1A Switch", "IN1A PGA" },
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{ "SPKMIX", "IN2A Switch", "IN2A PGA" },
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{ "MIXOUTL", "IN1A Switch", "IN1A PGA" },
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{ "MIXOUTL", "IN2A Switch", "IN2A PGA" },
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{ "MIXOUTR", "IN1A Switch", "IN1A PGA" },
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{ "MIXOUTR", "IN2A Switch", "IN2A PGA" },
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{ "HP PGA", NULL, "OSC" },
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{ "HP PGA", NULL, "MIXOUTL" },
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{ "HP PGA", NULL, "MIXOUTR" },
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{ "HPL", NULL, "HP PGA" },
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{ "HPR", NULL, "HP PGA" },
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{ "SPKPGA", NULL, "OSC" },
|
|
{ "SPKPGA", NULL, "SPKMIX" },
|
|
|
|
{ "SPKOUT", "Mixer Switch", "SPKPGA" },
|
|
|
|
{ "Speaker", NULL, "SPKOUT" },
|
|
};
|
|
|
|
static const struct snd_soc_dapm_route audio_map_in1_se[] = {
|
|
{ "IN1B PGA", NULL, "IN1-" },
|
|
|
|
{ "SPKMIX", "IN1B Switch", "IN1B PGA" },
|
|
{ "MIXOUTL", "IN1B Switch", "IN1B PGA" },
|
|
{ "MIXOUTR", "IN1B Switch", "IN1B PGA" },
|
|
};
|
|
|
|
static const struct snd_soc_dapm_route audio_map_in1_diff[] = {
|
|
{ "IN1A PGA", NULL, "IN1-" },
|
|
};
|
|
|
|
static const struct snd_soc_dapm_route audio_map_in2_se[] = {
|
|
{ "IN2B PGA", NULL, "IN2-" },
|
|
|
|
{ "SPKMIX", "IN2B Switch", "IN2B PGA" },
|
|
{ "MIXOUTL", "IN2B Switch", "IN2B PGA" },
|
|
{ "MIXOUTR", "IN2B Switch", "IN2B PGA" },
|
|
};
|
|
|
|
static const struct snd_soc_dapm_route audio_map_in2_diff[] = {
|
|
{ "IN2A PGA", NULL, "IN2-" },
|
|
};
|
|
|
|
static int wm9090_add_controls(struct snd_soc_component *component)
|
|
{
|
|
struct wm9090_priv *wm9090 = snd_soc_component_get_drvdata(component);
|
|
struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
|
|
int i;
|
|
|
|
snd_soc_dapm_new_controls(dapm, wm9090_dapm_widgets,
|
|
ARRAY_SIZE(wm9090_dapm_widgets));
|
|
|
|
snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
|
|
|
|
snd_soc_add_component_controls(component, wm9090_controls,
|
|
ARRAY_SIZE(wm9090_controls));
|
|
|
|
if (wm9090->pdata.lin1_diff) {
|
|
snd_soc_dapm_add_routes(dapm, audio_map_in1_diff,
|
|
ARRAY_SIZE(audio_map_in1_diff));
|
|
} else {
|
|
snd_soc_dapm_add_routes(dapm, audio_map_in1_se,
|
|
ARRAY_SIZE(audio_map_in1_se));
|
|
snd_soc_add_component_controls(component, wm9090_in1_se_controls,
|
|
ARRAY_SIZE(wm9090_in1_se_controls));
|
|
}
|
|
|
|
if (wm9090->pdata.lin2_diff) {
|
|
snd_soc_dapm_add_routes(dapm, audio_map_in2_diff,
|
|
ARRAY_SIZE(audio_map_in2_diff));
|
|
} else {
|
|
snd_soc_dapm_add_routes(dapm, audio_map_in2_se,
|
|
ARRAY_SIZE(audio_map_in2_se));
|
|
snd_soc_add_component_controls(component, wm9090_in2_se_controls,
|
|
ARRAY_SIZE(wm9090_in2_se_controls));
|
|
}
|
|
|
|
if (wm9090->pdata.agc_ena) {
|
|
for (i = 0; i < ARRAY_SIZE(wm9090->pdata.agc); i++)
|
|
snd_soc_component_write(component, WM9090_AGC_CONTROL_0 + i,
|
|
wm9090->pdata.agc[i]);
|
|
snd_soc_component_update_bits(component, WM9090_POWER_MANAGEMENT_3,
|
|
WM9090_AGC_ENA, WM9090_AGC_ENA);
|
|
} else {
|
|
snd_soc_component_update_bits(component, WM9090_POWER_MANAGEMENT_3,
|
|
WM9090_AGC_ENA, 0);
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
/*
|
|
* The machine driver should call this from their set_bias_level; if there
|
|
* isn't one then this can just be set as the set_bias_level function.
|
|
*/
|
|
static int wm9090_set_bias_level(struct snd_soc_component *component,
|
|
enum snd_soc_bias_level level)
|
|
{
|
|
struct wm9090_priv *wm9090 = snd_soc_component_get_drvdata(component);
|
|
|
|
switch (level) {
|
|
case SND_SOC_BIAS_ON:
|
|
break;
|
|
|
|
case SND_SOC_BIAS_PREPARE:
|
|
snd_soc_component_update_bits(component, WM9090_ANTIPOP2, WM9090_VMID_ENA,
|
|
WM9090_VMID_ENA);
|
|
snd_soc_component_update_bits(component, WM9090_POWER_MANAGEMENT_1,
|
|
WM9090_BIAS_ENA |
|
|
WM9090_VMID_RES_MASK,
|
|
WM9090_BIAS_ENA |
|
|
1 << WM9090_VMID_RES_SHIFT);
|
|
msleep(1); /* Probably an overestimate */
|
|
break;
|
|
|
|
case SND_SOC_BIAS_STANDBY:
|
|
if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) {
|
|
/* Restore the register cache */
|
|
regcache_sync(wm9090->regmap);
|
|
}
|
|
|
|
/* We keep VMID off during standby since the combination of
|
|
* ground referenced outputs and class D speaker mean that
|
|
* latency is not an issue.
|
|
*/
|
|
snd_soc_component_update_bits(component, WM9090_POWER_MANAGEMENT_1,
|
|
WM9090_BIAS_ENA | WM9090_VMID_RES_MASK, 0);
|
|
snd_soc_component_update_bits(component, WM9090_ANTIPOP2,
|
|
WM9090_VMID_ENA, 0);
|
|
break;
|
|
|
|
case SND_SOC_BIAS_OFF:
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int wm9090_probe(struct snd_soc_component *component)
|
|
{
|
|
/* Configure some defaults; they will be written out when we
|
|
* bring the bias up.
|
|
*/
|
|
snd_soc_component_update_bits(component, WM9090_IN1_LINE_INPUT_A_VOLUME,
|
|
WM9090_IN1_VU | WM9090_IN1A_ZC,
|
|
WM9090_IN1_VU | WM9090_IN1A_ZC);
|
|
snd_soc_component_update_bits(component, WM9090_IN1_LINE_INPUT_B_VOLUME,
|
|
WM9090_IN1_VU | WM9090_IN1B_ZC,
|
|
WM9090_IN1_VU | WM9090_IN1B_ZC);
|
|
snd_soc_component_update_bits(component, WM9090_IN2_LINE_INPUT_A_VOLUME,
|
|
WM9090_IN2_VU | WM9090_IN2A_ZC,
|
|
WM9090_IN2_VU | WM9090_IN2A_ZC);
|
|
snd_soc_component_update_bits(component, WM9090_IN2_LINE_INPUT_B_VOLUME,
|
|
WM9090_IN2_VU | WM9090_IN2B_ZC,
|
|
WM9090_IN2_VU | WM9090_IN2B_ZC);
|
|
snd_soc_component_update_bits(component, WM9090_SPEAKER_VOLUME_LEFT,
|
|
WM9090_SPKOUT_VU | WM9090_SPKOUTL_ZC,
|
|
WM9090_SPKOUT_VU | WM9090_SPKOUTL_ZC);
|
|
snd_soc_component_update_bits(component, WM9090_LEFT_OUTPUT_VOLUME,
|
|
WM9090_HPOUT1_VU | WM9090_HPOUT1L_ZC,
|
|
WM9090_HPOUT1_VU | WM9090_HPOUT1L_ZC);
|
|
snd_soc_component_update_bits(component, WM9090_RIGHT_OUTPUT_VOLUME,
|
|
WM9090_HPOUT1_VU | WM9090_HPOUT1R_ZC,
|
|
WM9090_HPOUT1_VU | WM9090_HPOUT1R_ZC);
|
|
|
|
snd_soc_component_update_bits(component, WM9090_CLOCKING_1,
|
|
WM9090_TOCLK_ENA, WM9090_TOCLK_ENA);
|
|
|
|
wm9090_add_controls(component);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct snd_soc_component_driver soc_component_dev_wm9090 = {
|
|
.probe = wm9090_probe,
|
|
.set_bias_level = wm9090_set_bias_level,
|
|
.suspend_bias_off = 1,
|
|
.idle_bias_on = 1,
|
|
.use_pmdown_time = 1,
|
|
};
|
|
|
|
static const struct regmap_config wm9090_regmap = {
|
|
.reg_bits = 8,
|
|
.val_bits = 16,
|
|
|
|
.max_register = WM9090_MAX_REGISTER,
|
|
.volatile_reg = wm9090_volatile,
|
|
.readable_reg = wm9090_readable,
|
|
|
|
.cache_type = REGCACHE_RBTREE,
|
|
.reg_defaults = wm9090_reg_defaults,
|
|
.num_reg_defaults = ARRAY_SIZE(wm9090_reg_defaults),
|
|
};
|
|
|
|
|
|
static int wm9090_i2c_probe(struct i2c_client *i2c)
|
|
{
|
|
struct wm9090_priv *wm9090;
|
|
unsigned int reg;
|
|
int ret;
|
|
|
|
wm9090 = devm_kzalloc(&i2c->dev, sizeof(*wm9090), GFP_KERNEL);
|
|
if (!wm9090)
|
|
return -ENOMEM;
|
|
|
|
wm9090->regmap = devm_regmap_init_i2c(i2c, &wm9090_regmap);
|
|
if (IS_ERR(wm9090->regmap)) {
|
|
ret = PTR_ERR(wm9090->regmap);
|
|
dev_err(&i2c->dev, "Failed to allocate regmap: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
ret = regmap_read(wm9090->regmap, WM9090_SOFTWARE_RESET, ®);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if (reg != 0x9093) {
|
|
dev_err(&i2c->dev, "Device is not a WM9090, ID=%x\n", reg);
|
|
return -ENODEV;
|
|
}
|
|
|
|
ret = regmap_write(wm9090->regmap, WM9090_SOFTWARE_RESET, 0);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if (i2c->dev.platform_data)
|
|
memcpy(&wm9090->pdata, i2c->dev.platform_data,
|
|
sizeof(wm9090->pdata));
|
|
|
|
i2c_set_clientdata(i2c, wm9090);
|
|
|
|
ret = devm_snd_soc_register_component(&i2c->dev,
|
|
&soc_component_dev_wm9090, NULL, 0);
|
|
if (ret != 0) {
|
|
dev_err(&i2c->dev, "Failed to register CODEC: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct i2c_device_id wm9090_id[] = {
|
|
{ "wm9090", 0 },
|
|
{ "wm9093", 0 },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(i2c, wm9090_id);
|
|
|
|
static struct i2c_driver wm9090_i2c_driver = {
|
|
.driver = {
|
|
.name = "wm9090",
|
|
},
|
|
.probe_new = wm9090_i2c_probe,
|
|
.id_table = wm9090_id,
|
|
};
|
|
|
|
module_i2c_driver(wm9090_i2c_driver);
|
|
|
|
MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
|
|
MODULE_DESCRIPTION("WM9090 ASoC driver");
|
|
MODULE_LICENSE("GPL");
|