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-rw-r--r--sound/soc/codecs/wm8985.c1248
1 files changed, 1248 insertions, 0 deletions
diff --git a/sound/soc/codecs/wm8985.c b/sound/soc/codecs/wm8985.c
new file mode 100644
index 000000000..3f2748234
--- /dev/null
+++ b/sound/soc/codecs/wm8985.c
@@ -0,0 +1,1248 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * wm8985.c -- WM8985 / WM8758 ALSA SoC Audio driver
+ *
+ * Copyright 2010 Wolfson Microelectronics plc
+ * Author: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
+ *
+ * WM8758 support:
+ * Copyright: 2016 Barix AG
+ * Author: Petr Kulhavy <petr@barix.com>
+ *
+ * TODO:
+ * o Add OUT3/OUT4 mixer controls.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/pm.h>
+#include <linux/i2c.h>
+#include <linux/regmap.h>
+#include <linux/regulator/consumer.h>
+#include <linux/spi/spi.h>
+#include <linux/slab.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/initval.h>
+#include <sound/tlv.h>
+
+#include "wm8985.h"
+
+#define WM8985_NUM_SUPPLIES 4
+static const char *wm8985_supply_names[WM8985_NUM_SUPPLIES] = {
+ "DCVDD",
+ "DBVDD",
+ "AVDD1",
+ "AVDD2"
+};
+
+enum wm8985_type {
+ WM8985,
+ WM8758,
+};
+
+static const struct reg_default wm8985_reg_defaults[] = {
+ { 1, 0x0000 }, /* R1 - Power management 1 */
+ { 2, 0x0000 }, /* R2 - Power management 2 */
+ { 3, 0x0000 }, /* R3 - Power management 3 */
+ { 4, 0x0050 }, /* R4 - Audio Interface */
+ { 5, 0x0000 }, /* R5 - Companding control */
+ { 6, 0x0140 }, /* R6 - Clock Gen control */
+ { 7, 0x0000 }, /* R7 - Additional control */
+ { 8, 0x0000 }, /* R8 - GPIO Control */
+ { 9, 0x0000 }, /* R9 - Jack Detect Control 1 */
+ { 10, 0x0000 }, /* R10 - DAC Control */
+ { 11, 0x00FF }, /* R11 - Left DAC digital Vol */
+ { 12, 0x00FF }, /* R12 - Right DAC digital vol */
+ { 13, 0x0000 }, /* R13 - Jack Detect Control 2 */
+ { 14, 0x0100 }, /* R14 - ADC Control */
+ { 15, 0x00FF }, /* R15 - Left ADC Digital Vol */
+ { 16, 0x00FF }, /* R16 - Right ADC Digital Vol */
+ { 18, 0x012C }, /* R18 - EQ1 - low shelf */
+ { 19, 0x002C }, /* R19 - EQ2 - peak 1 */
+ { 20, 0x002C }, /* R20 - EQ3 - peak 2 */
+ { 21, 0x002C }, /* R21 - EQ4 - peak 3 */
+ { 22, 0x002C }, /* R22 - EQ5 - high shelf */
+ { 24, 0x0032 }, /* R24 - DAC Limiter 1 */
+ { 25, 0x0000 }, /* R25 - DAC Limiter 2 */
+ { 27, 0x0000 }, /* R27 - Notch Filter 1 */
+ { 28, 0x0000 }, /* R28 - Notch Filter 2 */
+ { 29, 0x0000 }, /* R29 - Notch Filter 3 */
+ { 30, 0x0000 }, /* R30 - Notch Filter 4 */
+ { 32, 0x0038 }, /* R32 - ALC control 1 */
+ { 33, 0x000B }, /* R33 - ALC control 2 */
+ { 34, 0x0032 }, /* R34 - ALC control 3 */
+ { 35, 0x0000 }, /* R35 - Noise Gate */
+ { 36, 0x0008 }, /* R36 - PLL N */
+ { 37, 0x000C }, /* R37 - PLL K 1 */
+ { 38, 0x0093 }, /* R38 - PLL K 2 */
+ { 39, 0x00E9 }, /* R39 - PLL K 3 */
+ { 41, 0x0000 }, /* R41 - 3D control */
+ { 42, 0x0000 }, /* R42 - OUT4 to ADC */
+ { 43, 0x0000 }, /* R43 - Beep control */
+ { 44, 0x0033 }, /* R44 - Input ctrl */
+ { 45, 0x0010 }, /* R45 - Left INP PGA gain ctrl */
+ { 46, 0x0010 }, /* R46 - Right INP PGA gain ctrl */
+ { 47, 0x0100 }, /* R47 - Left ADC BOOST ctrl */
+ { 48, 0x0100 }, /* R48 - Right ADC BOOST ctrl */
+ { 49, 0x0002 }, /* R49 - Output ctrl */
+ { 50, 0x0001 }, /* R50 - Left mixer ctrl */
+ { 51, 0x0001 }, /* R51 - Right mixer ctrl */
+ { 52, 0x0039 }, /* R52 - LOUT1 (HP) volume ctrl */
+ { 53, 0x0039 }, /* R53 - ROUT1 (HP) volume ctrl */
+ { 54, 0x0039 }, /* R54 - LOUT2 (SPK) volume ctrl */
+ { 55, 0x0039 }, /* R55 - ROUT2 (SPK) volume ctrl */
+ { 56, 0x0001 }, /* R56 - OUT3 mixer ctrl */
+ { 57, 0x0001 }, /* R57 - OUT4 (MONO) mix ctrl */
+ { 60, 0x0004 }, /* R60 - OUTPUT ctrl */
+ { 61, 0x0000 }, /* R61 - BIAS CTRL */
+};
+
+static bool wm8985_writeable(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case WM8985_SOFTWARE_RESET:
+ case WM8985_POWER_MANAGEMENT_1:
+ case WM8985_POWER_MANAGEMENT_2:
+ case WM8985_POWER_MANAGEMENT_3:
+ case WM8985_AUDIO_INTERFACE:
+ case WM8985_COMPANDING_CONTROL:
+ case WM8985_CLOCK_GEN_CONTROL:
+ case WM8985_ADDITIONAL_CONTROL:
+ case WM8985_GPIO_CONTROL:
+ case WM8985_JACK_DETECT_CONTROL_1:
+ case WM8985_DAC_CONTROL:
+ case WM8985_LEFT_DAC_DIGITAL_VOL:
+ case WM8985_RIGHT_DAC_DIGITAL_VOL:
+ case WM8985_JACK_DETECT_CONTROL_2:
+ case WM8985_ADC_CONTROL:
+ case WM8985_LEFT_ADC_DIGITAL_VOL:
+ case WM8985_RIGHT_ADC_DIGITAL_VOL:
+ case WM8985_EQ1_LOW_SHELF:
+ case WM8985_EQ2_PEAK_1:
+ case WM8985_EQ3_PEAK_2:
+ case WM8985_EQ4_PEAK_3:
+ case WM8985_EQ5_HIGH_SHELF:
+ case WM8985_DAC_LIMITER_1:
+ case WM8985_DAC_LIMITER_2:
+ case WM8985_NOTCH_FILTER_1:
+ case WM8985_NOTCH_FILTER_2:
+ case WM8985_NOTCH_FILTER_3:
+ case WM8985_NOTCH_FILTER_4:
+ case WM8985_ALC_CONTROL_1:
+ case WM8985_ALC_CONTROL_2:
+ case WM8985_ALC_CONTROL_3:
+ case WM8985_NOISE_GATE:
+ case WM8985_PLL_N:
+ case WM8985_PLL_K_1:
+ case WM8985_PLL_K_2:
+ case WM8985_PLL_K_3:
+ case WM8985_3D_CONTROL:
+ case WM8985_OUT4_TO_ADC:
+ case WM8985_BEEP_CONTROL:
+ case WM8985_INPUT_CTRL:
+ case WM8985_LEFT_INP_PGA_GAIN_CTRL:
+ case WM8985_RIGHT_INP_PGA_GAIN_CTRL:
+ case WM8985_LEFT_ADC_BOOST_CTRL:
+ case WM8985_RIGHT_ADC_BOOST_CTRL:
+ case WM8985_OUTPUT_CTRL0:
+ case WM8985_LEFT_MIXER_CTRL:
+ case WM8985_RIGHT_MIXER_CTRL:
+ case WM8985_LOUT1_HP_VOLUME_CTRL:
+ case WM8985_ROUT1_HP_VOLUME_CTRL:
+ case WM8985_LOUT2_SPK_VOLUME_CTRL:
+ case WM8985_ROUT2_SPK_VOLUME_CTRL:
+ case WM8985_OUT3_MIXER_CTRL:
+ case WM8985_OUT4_MONO_MIX_CTRL:
+ case WM8985_OUTPUT_CTRL1:
+ case WM8985_BIAS_CTRL:
+ return true;
+ default:
+ return false;
+ }
+}
+
+/*
+ * latch bit 8 of these registers to ensure instant
+ * volume updates
+ */
+static const int volume_update_regs[] = {
+ WM8985_LEFT_DAC_DIGITAL_VOL,
+ WM8985_RIGHT_DAC_DIGITAL_VOL,
+ WM8985_LEFT_ADC_DIGITAL_VOL,
+ WM8985_RIGHT_ADC_DIGITAL_VOL,
+ WM8985_LOUT2_SPK_VOLUME_CTRL,
+ WM8985_ROUT2_SPK_VOLUME_CTRL,
+ WM8985_LOUT1_HP_VOLUME_CTRL,
+ WM8985_ROUT1_HP_VOLUME_CTRL,
+ WM8985_LEFT_INP_PGA_GAIN_CTRL,
+ WM8985_RIGHT_INP_PGA_GAIN_CTRL
+};
+
+struct wm8985_priv {
+ struct regmap *regmap;
+ struct regulator_bulk_data supplies[WM8985_NUM_SUPPLIES];
+ enum wm8985_type dev_type;
+ unsigned int sysclk;
+ unsigned int bclk;
+};
+
+static const struct {
+ int div;
+ int ratio;
+} fs_ratios[] = {
+ { 10, 128 },
+ { 15, 192 },
+ { 20, 256 },
+ { 30, 384 },
+ { 40, 512 },
+ { 60, 768 },
+ { 80, 1024 },
+ { 120, 1536 }
+};
+
+static const int srates[] = { 48000, 32000, 24000, 16000, 12000, 8000 };
+
+static const int bclk_divs[] = {
+ 1, 2, 4, 8, 16, 32
+};
+
+static int eqmode_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol);
+static int eqmode_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol);
+
+static const DECLARE_TLV_DB_SCALE(dac_tlv, -12700, 50, 1);
+static const DECLARE_TLV_DB_SCALE(adc_tlv, -12700, 50, 1);
+static const DECLARE_TLV_DB_SCALE(out_tlv, -5700, 100, 0);
+static const DECLARE_TLV_DB_SCALE(lim_thresh_tlv, -600, 100, 0);
+static const DECLARE_TLV_DB_SCALE(lim_boost_tlv, 0, 100, 0);
+static const DECLARE_TLV_DB_SCALE(alc_min_tlv, -1200, 600, 0);
+static const DECLARE_TLV_DB_SCALE(alc_max_tlv, -675, 600, 0);
+static const DECLARE_TLV_DB_SCALE(alc_tar_tlv, -2250, 150, 0);
+static const DECLARE_TLV_DB_SCALE(pga_vol_tlv, -1200, 75, 0);
+static const DECLARE_TLV_DB_SCALE(boost_tlv, -1200, 300, 1);
+static const DECLARE_TLV_DB_SCALE(eq_tlv, -1200, 100, 0);
+static const DECLARE_TLV_DB_SCALE(aux_tlv, -1500, 300, 0);
+static const DECLARE_TLV_DB_SCALE(bypass_tlv, -1500, 300, 0);
+static const DECLARE_TLV_DB_SCALE(pga_boost_tlv, 0, 2000, 0);
+
+static const char *alc_sel_text[] = { "Off", "Right", "Left", "Stereo" };
+static SOC_ENUM_SINGLE_DECL(alc_sel, WM8985_ALC_CONTROL_1, 7, alc_sel_text);
+
+static const char *alc_mode_text[] = { "ALC", "Limiter" };
+static SOC_ENUM_SINGLE_DECL(alc_mode, WM8985_ALC_CONTROL_3, 8, alc_mode_text);
+
+static const char *filter_mode_text[] = { "Audio", "Application" };
+static SOC_ENUM_SINGLE_DECL(filter_mode, WM8985_ADC_CONTROL, 7,
+ filter_mode_text);
+
+static const char *eq_bw_text[] = { "Narrow", "Wide" };
+static const char *eqmode_text[] = { "Capture", "Playback" };
+static SOC_ENUM_SINGLE_EXT_DECL(eqmode, eqmode_text);
+
+static const char *eq1_cutoff_text[] = {
+ "80Hz", "105Hz", "135Hz", "175Hz"
+};
+static SOC_ENUM_SINGLE_DECL(eq1_cutoff, WM8985_EQ1_LOW_SHELF, 5,
+ eq1_cutoff_text);
+static const char *eq2_cutoff_text[] = {
+ "230Hz", "300Hz", "385Hz", "500Hz"
+};
+static SOC_ENUM_SINGLE_DECL(eq2_bw, WM8985_EQ2_PEAK_1, 8, eq_bw_text);
+static SOC_ENUM_SINGLE_DECL(eq2_cutoff, WM8985_EQ2_PEAK_1, 5, eq2_cutoff_text);
+static const char *eq3_cutoff_text[] = {
+ "650Hz", "850Hz", "1.1kHz", "1.4kHz"
+};
+static SOC_ENUM_SINGLE_DECL(eq3_bw, WM8985_EQ3_PEAK_2, 8, eq_bw_text);
+static SOC_ENUM_SINGLE_DECL(eq3_cutoff, WM8985_EQ3_PEAK_2, 5,
+ eq3_cutoff_text);
+static const char *eq4_cutoff_text[] = {
+ "1.8kHz", "2.4kHz", "3.2kHz", "4.1kHz"
+};
+static SOC_ENUM_SINGLE_DECL(eq4_bw, WM8985_EQ4_PEAK_3, 8, eq_bw_text);
+static SOC_ENUM_SINGLE_DECL(eq4_cutoff, WM8985_EQ4_PEAK_3, 5, eq4_cutoff_text);
+static const char *eq5_cutoff_text[] = {
+ "5.3kHz", "6.9kHz", "9kHz", "11.7kHz"
+};
+static SOC_ENUM_SINGLE_DECL(eq5_cutoff, WM8985_EQ5_HIGH_SHELF, 5,
+ eq5_cutoff_text);
+
+static const char *speaker_mode_text[] = { "Class A/B", "Class D" };
+static SOC_ENUM_SINGLE_DECL(speaker_mode, 0x17, 8, speaker_mode_text);
+
+static const char *depth_3d_text[] = {
+ "Off",
+ "6.67%",
+ "13.3%",
+ "20%",
+ "26.7%",
+ "33.3%",
+ "40%",
+ "46.6%",
+ "53.3%",
+ "60%",
+ "66.7%",
+ "73.3%",
+ "80%",
+ "86.7%",
+ "93.3%",
+ "100%"
+};
+static SOC_ENUM_SINGLE_DECL(depth_3d, WM8985_3D_CONTROL, 0, depth_3d_text);
+
+static const struct snd_kcontrol_new wm8985_common_snd_controls[] = {
+ SOC_SINGLE("Digital Loopback Switch", WM8985_COMPANDING_CONTROL,
+ 0, 1, 0),
+
+ SOC_ENUM("ALC Capture Function", alc_sel),
+ SOC_SINGLE_TLV("ALC Capture Max Volume", WM8985_ALC_CONTROL_1,
+ 3, 7, 0, alc_max_tlv),
+ SOC_SINGLE_TLV("ALC Capture Min Volume", WM8985_ALC_CONTROL_1,
+ 0, 7, 0, alc_min_tlv),
+ SOC_SINGLE_TLV("ALC Capture Target Volume", WM8985_ALC_CONTROL_2,
+ 0, 15, 0, alc_tar_tlv),
+ SOC_SINGLE("ALC Capture Attack", WM8985_ALC_CONTROL_3, 0, 10, 0),
+ SOC_SINGLE("ALC Capture Hold", WM8985_ALC_CONTROL_2, 4, 10, 0),
+ SOC_SINGLE("ALC Capture Decay", WM8985_ALC_CONTROL_3, 4, 10, 0),
+ SOC_ENUM("ALC Mode", alc_mode),
+ SOC_SINGLE("ALC Capture NG Switch", WM8985_NOISE_GATE,
+ 3, 1, 0),
+ SOC_SINGLE("ALC Capture NG Threshold", WM8985_NOISE_GATE,
+ 0, 7, 1),
+
+ SOC_DOUBLE_R_TLV("Capture Volume", WM8985_LEFT_ADC_DIGITAL_VOL,
+ WM8985_RIGHT_ADC_DIGITAL_VOL, 0, 255, 0, adc_tlv),
+ SOC_DOUBLE_R("Capture PGA ZC Switch", WM8985_LEFT_INP_PGA_GAIN_CTRL,
+ WM8985_RIGHT_INP_PGA_GAIN_CTRL, 7, 1, 0),
+ SOC_DOUBLE_R_TLV("Capture PGA Volume", WM8985_LEFT_INP_PGA_GAIN_CTRL,
+ WM8985_RIGHT_INP_PGA_GAIN_CTRL, 0, 63, 0, pga_vol_tlv),
+
+ SOC_DOUBLE_R_TLV("Capture PGA Boost Volume",
+ WM8985_LEFT_ADC_BOOST_CTRL, WM8985_RIGHT_ADC_BOOST_CTRL,
+ 8, 1, 0, pga_boost_tlv),
+
+ SOC_DOUBLE("ADC Inversion Switch", WM8985_ADC_CONTROL, 0, 1, 1, 0),
+ SOC_SINGLE("ADC 128x Oversampling Switch", WM8985_ADC_CONTROL, 8, 1, 0),
+
+ SOC_DOUBLE_R_TLV("Playback Volume", WM8985_LEFT_DAC_DIGITAL_VOL,
+ WM8985_RIGHT_DAC_DIGITAL_VOL, 0, 255, 0, dac_tlv),
+
+ SOC_SINGLE("DAC Playback Limiter Switch", WM8985_DAC_LIMITER_1, 8, 1, 0),
+ SOC_SINGLE("DAC Playback Limiter Decay", WM8985_DAC_LIMITER_1, 4, 10, 0),
+ SOC_SINGLE("DAC Playback Limiter Attack", WM8985_DAC_LIMITER_1, 0, 11, 0),
+ SOC_SINGLE_TLV("DAC Playback Limiter Threshold", WM8985_DAC_LIMITER_2,
+ 4, 7, 1, lim_thresh_tlv),
+ SOC_SINGLE_TLV("DAC Playback Limiter Boost Volume", WM8985_DAC_LIMITER_2,
+ 0, 12, 0, lim_boost_tlv),
+ SOC_DOUBLE("DAC Inversion Switch", WM8985_DAC_CONTROL, 0, 1, 1, 0),
+ SOC_SINGLE("DAC Auto Mute Switch", WM8985_DAC_CONTROL, 2, 1, 0),
+ SOC_SINGLE("DAC 128x Oversampling Switch", WM8985_DAC_CONTROL, 3, 1, 0),
+
+ SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8985_LOUT1_HP_VOLUME_CTRL,
+ WM8985_ROUT1_HP_VOLUME_CTRL, 0, 63, 0, out_tlv),
+ SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8985_LOUT1_HP_VOLUME_CTRL,
+ WM8985_ROUT1_HP_VOLUME_CTRL, 7, 1, 0),
+ SOC_DOUBLE_R("Headphone Switch", WM8985_LOUT1_HP_VOLUME_CTRL,
+ WM8985_ROUT1_HP_VOLUME_CTRL, 6, 1, 1),
+
+ SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8985_LOUT2_SPK_VOLUME_CTRL,
+ WM8985_ROUT2_SPK_VOLUME_CTRL, 0, 63, 0, out_tlv),
+ SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8985_LOUT2_SPK_VOLUME_CTRL,
+ WM8985_ROUT2_SPK_VOLUME_CTRL, 7, 1, 0),
+ SOC_DOUBLE_R("Speaker Switch", WM8985_LOUT2_SPK_VOLUME_CTRL,
+ WM8985_ROUT2_SPK_VOLUME_CTRL, 6, 1, 1),
+
+ SOC_SINGLE("High Pass Filter Switch", WM8985_ADC_CONTROL, 8, 1, 0),
+ SOC_ENUM("High Pass Filter Mode", filter_mode),
+ SOC_SINGLE("High Pass Filter Cutoff", WM8985_ADC_CONTROL, 4, 7, 0),
+
+ SOC_DOUBLE_R_TLV("Input PGA Bypass Volume",
+ WM8985_LEFT_MIXER_CTRL, WM8985_RIGHT_MIXER_CTRL, 2, 7, 0,
+ bypass_tlv),
+
+ SOC_ENUM_EXT("Equalizer Function", eqmode, eqmode_get, eqmode_put),
+ SOC_ENUM("EQ1 Cutoff", eq1_cutoff),
+ SOC_SINGLE_TLV("EQ1 Volume", WM8985_EQ1_LOW_SHELF, 0, 24, 1, eq_tlv),
+ SOC_ENUM("EQ2 Bandwidth", eq2_bw),
+ SOC_ENUM("EQ2 Cutoff", eq2_cutoff),
+ SOC_SINGLE_TLV("EQ2 Volume", WM8985_EQ2_PEAK_1, 0, 24, 1, eq_tlv),
+ SOC_ENUM("EQ3 Bandwidth", eq3_bw),
+ SOC_ENUM("EQ3 Cutoff", eq3_cutoff),
+ SOC_SINGLE_TLV("EQ3 Volume", WM8985_EQ3_PEAK_2, 0, 24, 1, eq_tlv),
+ SOC_ENUM("EQ4 Bandwidth", eq4_bw),
+ SOC_ENUM("EQ4 Cutoff", eq4_cutoff),
+ SOC_SINGLE_TLV("EQ4 Volume", WM8985_EQ4_PEAK_3, 0, 24, 1, eq_tlv),
+ SOC_ENUM("EQ5 Cutoff", eq5_cutoff),
+ SOC_SINGLE_TLV("EQ5 Volume", WM8985_EQ5_HIGH_SHELF, 0, 24, 1, eq_tlv),
+
+ SOC_ENUM("3D Depth", depth_3d),
+};
+
+static const struct snd_kcontrol_new wm8985_specific_snd_controls[] = {
+ SOC_DOUBLE_R_TLV("Aux Bypass Volume",
+ WM8985_LEFT_MIXER_CTRL, WM8985_RIGHT_MIXER_CTRL, 6, 7, 0,
+ aux_tlv),
+
+ SOC_ENUM("Speaker Mode", speaker_mode)
+};
+
+static const struct snd_kcontrol_new left_out_mixer[] = {
+ SOC_DAPM_SINGLE("Line Switch", WM8985_LEFT_MIXER_CTRL, 1, 1, 0),
+ SOC_DAPM_SINGLE("PCM Switch", WM8985_LEFT_MIXER_CTRL, 0, 1, 0),
+
+ /* --- WM8985 only --- */
+ SOC_DAPM_SINGLE("Aux Switch", WM8985_LEFT_MIXER_CTRL, 5, 1, 0),
+};
+
+static const struct snd_kcontrol_new right_out_mixer[] = {
+ SOC_DAPM_SINGLE("Line Switch", WM8985_RIGHT_MIXER_CTRL, 1, 1, 0),
+ SOC_DAPM_SINGLE("PCM Switch", WM8985_RIGHT_MIXER_CTRL, 0, 1, 0),
+
+ /* --- WM8985 only --- */
+ SOC_DAPM_SINGLE("Aux Switch", WM8985_RIGHT_MIXER_CTRL, 5, 1, 0),
+};
+
+static const struct snd_kcontrol_new left_input_mixer[] = {
+ SOC_DAPM_SINGLE("L2 Switch", WM8985_INPUT_CTRL, 2, 1, 0),
+ SOC_DAPM_SINGLE("MicN Switch", WM8985_INPUT_CTRL, 1, 1, 0),
+ SOC_DAPM_SINGLE("MicP Switch", WM8985_INPUT_CTRL, 0, 1, 0),
+};
+
+static const struct snd_kcontrol_new right_input_mixer[] = {
+ SOC_DAPM_SINGLE("R2 Switch", WM8985_INPUT_CTRL, 6, 1, 0),
+ SOC_DAPM_SINGLE("MicN Switch", WM8985_INPUT_CTRL, 5, 1, 0),
+ SOC_DAPM_SINGLE("MicP Switch", WM8985_INPUT_CTRL, 4, 1, 0),
+};
+
+static const struct snd_kcontrol_new left_boost_mixer[] = {
+ SOC_DAPM_SINGLE_TLV("L2 Volume", WM8985_LEFT_ADC_BOOST_CTRL,
+ 4, 7, 0, boost_tlv),
+
+ /* --- WM8985 only --- */
+ SOC_DAPM_SINGLE_TLV("AUXL Volume", WM8985_LEFT_ADC_BOOST_CTRL,
+ 0, 7, 0, boost_tlv)
+};
+
+static const struct snd_kcontrol_new right_boost_mixer[] = {
+ SOC_DAPM_SINGLE_TLV("R2 Volume", WM8985_RIGHT_ADC_BOOST_CTRL,
+ 4, 7, 0, boost_tlv),
+
+ /* --- WM8985 only --- */
+ SOC_DAPM_SINGLE_TLV("AUXR Volume", WM8985_RIGHT_ADC_BOOST_CTRL,
+ 0, 7, 0, boost_tlv)
+};
+
+static const struct snd_soc_dapm_widget wm8985_common_dapm_widgets[] = {
+ SND_SOC_DAPM_DAC("Left DAC", "Left Playback", WM8985_POWER_MANAGEMENT_3,
+ 0, 0),
+ SND_SOC_DAPM_DAC("Right DAC", "Right Playback", WM8985_POWER_MANAGEMENT_3,
+ 1, 0),
+ SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8985_POWER_MANAGEMENT_2,
+ 0, 0),
+ SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8985_POWER_MANAGEMENT_2,
+ 1, 0),
+
+ SND_SOC_DAPM_MIXER("Left Input Mixer", WM8985_POWER_MANAGEMENT_2,
+ 2, 0, left_input_mixer, ARRAY_SIZE(left_input_mixer)),
+ SND_SOC_DAPM_MIXER("Right Input Mixer", WM8985_POWER_MANAGEMENT_2,
+ 3, 0, right_input_mixer, ARRAY_SIZE(right_input_mixer)),
+
+ SND_SOC_DAPM_PGA("Left Capture PGA", WM8985_LEFT_INP_PGA_GAIN_CTRL,
+ 6, 1, NULL, 0),
+ SND_SOC_DAPM_PGA("Right Capture PGA", WM8985_RIGHT_INP_PGA_GAIN_CTRL,
+ 6, 1, NULL, 0),
+
+ SND_SOC_DAPM_PGA("Left Headphone Out", WM8985_POWER_MANAGEMENT_2,
+ 7, 0, NULL, 0),
+ SND_SOC_DAPM_PGA("Right Headphone Out", WM8985_POWER_MANAGEMENT_2,
+ 8, 0, NULL, 0),
+
+ SND_SOC_DAPM_PGA("Left Speaker Out", WM8985_POWER_MANAGEMENT_3,
+ 5, 0, NULL, 0),
+ SND_SOC_DAPM_PGA("Right Speaker Out", WM8985_POWER_MANAGEMENT_3,
+ 6, 0, NULL, 0),
+
+ SND_SOC_DAPM_SUPPLY("Mic Bias", WM8985_POWER_MANAGEMENT_1, 4, 0,
+ NULL, 0),
+
+ SND_SOC_DAPM_INPUT("LIN"),
+ SND_SOC_DAPM_INPUT("LIP"),
+ SND_SOC_DAPM_INPUT("RIN"),
+ SND_SOC_DAPM_INPUT("RIP"),
+ SND_SOC_DAPM_INPUT("L2"),
+ SND_SOC_DAPM_INPUT("R2"),
+ SND_SOC_DAPM_OUTPUT("HPL"),
+ SND_SOC_DAPM_OUTPUT("HPR"),
+ SND_SOC_DAPM_OUTPUT("SPKL"),
+ SND_SOC_DAPM_OUTPUT("SPKR")
+};
+
+static const struct snd_soc_dapm_widget wm8985_dapm_widgets[] = {
+ SND_SOC_DAPM_MIXER("Left Output Mixer", WM8985_POWER_MANAGEMENT_3,
+ 2, 0, left_out_mixer, ARRAY_SIZE(left_out_mixer)),
+ SND_SOC_DAPM_MIXER("Right Output Mixer", WM8985_POWER_MANAGEMENT_3,
+ 3, 0, right_out_mixer, ARRAY_SIZE(right_out_mixer)),
+
+ SND_SOC_DAPM_MIXER("Left Boost Mixer", WM8985_POWER_MANAGEMENT_2,
+ 4, 0, left_boost_mixer, ARRAY_SIZE(left_boost_mixer)),
+ SND_SOC_DAPM_MIXER("Right Boost Mixer", WM8985_POWER_MANAGEMENT_2,
+ 5, 0, right_boost_mixer, ARRAY_SIZE(right_boost_mixer)),
+
+ SND_SOC_DAPM_INPUT("AUXL"),
+ SND_SOC_DAPM_INPUT("AUXR"),
+};
+
+static const struct snd_soc_dapm_widget wm8758_dapm_widgets[] = {
+ SND_SOC_DAPM_MIXER("Left Output Mixer", WM8985_POWER_MANAGEMENT_3,
+ 2, 0, left_out_mixer,
+ ARRAY_SIZE(left_out_mixer) - 1),
+ SND_SOC_DAPM_MIXER("Right Output Mixer", WM8985_POWER_MANAGEMENT_3,
+ 3, 0, right_out_mixer,
+ ARRAY_SIZE(right_out_mixer) - 1),
+
+ SND_SOC_DAPM_MIXER("Left Boost Mixer", WM8985_POWER_MANAGEMENT_2,
+ 4, 0, left_boost_mixer,
+ ARRAY_SIZE(left_boost_mixer) - 1),
+ SND_SOC_DAPM_MIXER("Right Boost Mixer", WM8985_POWER_MANAGEMENT_2,
+ 5, 0, right_boost_mixer,
+ ARRAY_SIZE(right_boost_mixer) - 1),
+};
+
+static const struct snd_soc_dapm_route wm8985_common_dapm_routes[] = {
+ { "Right Output Mixer", "PCM Switch", "Right DAC" },
+ { "Right Output Mixer", "Line Switch", "Right Boost Mixer" },
+
+ { "Left Output Mixer", "PCM Switch", "Left DAC" },
+ { "Left Output Mixer", "Line Switch", "Left Boost Mixer" },
+
+ { "Right Headphone Out", NULL, "Right Output Mixer" },
+ { "HPR", NULL, "Right Headphone Out" },
+
+ { "Left Headphone Out", NULL, "Left Output Mixer" },
+ { "HPL", NULL, "Left Headphone Out" },
+
+ { "Right Speaker Out", NULL, "Right Output Mixer" },
+ { "SPKR", NULL, "Right Speaker Out" },
+
+ { "Left Speaker Out", NULL, "Left Output Mixer" },
+ { "SPKL", NULL, "Left Speaker Out" },
+
+ { "Right ADC", NULL, "Right Boost Mixer" },
+
+ { "Right Boost Mixer", NULL, "Right Capture PGA" },
+ { "Right Boost Mixer", "R2 Volume", "R2" },
+
+ { "Left ADC", NULL, "Left Boost Mixer" },
+
+ { "Left Boost Mixer", NULL, "Left Capture PGA" },
+ { "Left Boost Mixer", "L2 Volume", "L2" },
+
+ { "Right Capture PGA", NULL, "Right Input Mixer" },
+ { "Left Capture PGA", NULL, "Left Input Mixer" },
+
+ { "Right Input Mixer", "R2 Switch", "R2" },
+ { "Right Input Mixer", "MicN Switch", "RIN" },
+ { "Right Input Mixer", "MicP Switch", "RIP" },
+
+ { "Left Input Mixer", "L2 Switch", "L2" },
+ { "Left Input Mixer", "MicN Switch", "LIN" },
+ { "Left Input Mixer", "MicP Switch", "LIP" },
+};
+static const struct snd_soc_dapm_route wm8985_aux_dapm_routes[] = {
+ { "Right Output Mixer", "Aux Switch", "AUXR" },
+ { "Left Output Mixer", "Aux Switch", "AUXL" },
+
+ { "Right Boost Mixer", "AUXR Volume", "AUXR" },
+ { "Left Boost Mixer", "AUXL Volume", "AUXL" },
+};
+
+static int wm8985_add_widgets(struct snd_soc_component *component)
+{
+ struct wm8985_priv *wm8985 = snd_soc_component_get_drvdata(component);
+ struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
+
+ switch (wm8985->dev_type) {
+ case WM8758:
+ snd_soc_dapm_new_controls(dapm, wm8758_dapm_widgets,
+ ARRAY_SIZE(wm8758_dapm_widgets));
+ break;
+
+ case WM8985:
+ snd_soc_add_component_controls(component, wm8985_specific_snd_controls,
+ ARRAY_SIZE(wm8985_specific_snd_controls));
+
+ snd_soc_dapm_new_controls(dapm, wm8985_dapm_widgets,
+ ARRAY_SIZE(wm8985_dapm_widgets));
+ snd_soc_dapm_add_routes(dapm, wm8985_aux_dapm_routes,
+ ARRAY_SIZE(wm8985_aux_dapm_routes));
+ break;
+ }
+
+ return 0;
+}
+
+static int eqmode_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
+ unsigned int reg;
+
+ reg = snd_soc_component_read(component, WM8985_EQ1_LOW_SHELF);
+ if (reg & WM8985_EQ3DMODE)
+ ucontrol->value.enumerated.item[0] = 1;
+ else
+ ucontrol->value.enumerated.item[0] = 0;
+
+ return 0;
+}
+
+static int eqmode_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
+ unsigned int regpwr2, regpwr3;
+ unsigned int reg_eq;
+
+ if (ucontrol->value.enumerated.item[0] != 0
+ && ucontrol->value.enumerated.item[0] != 1)
+ return -EINVAL;
+
+ reg_eq = snd_soc_component_read(component, WM8985_EQ1_LOW_SHELF);
+ switch ((reg_eq & WM8985_EQ3DMODE) >> WM8985_EQ3DMODE_SHIFT) {
+ case 0:
+ if (!ucontrol->value.enumerated.item[0])
+ return 0;
+ break;
+ case 1:
+ if (ucontrol->value.enumerated.item[0])
+ return 0;
+ break;
+ }
+
+ regpwr2 = snd_soc_component_read(component, WM8985_POWER_MANAGEMENT_2);
+ regpwr3 = snd_soc_component_read(component, WM8985_POWER_MANAGEMENT_3);
+ /* disable the DACs and ADCs */
+ snd_soc_component_update_bits(component, WM8985_POWER_MANAGEMENT_2,
+ WM8985_ADCENR_MASK | WM8985_ADCENL_MASK, 0);
+ snd_soc_component_update_bits(component, WM8985_POWER_MANAGEMENT_3,
+ WM8985_DACENR_MASK | WM8985_DACENL_MASK, 0);
+ snd_soc_component_update_bits(component, WM8985_ADDITIONAL_CONTROL,
+ WM8985_M128ENB_MASK, WM8985_M128ENB);
+ /* set the desired eqmode */
+ snd_soc_component_update_bits(component, WM8985_EQ1_LOW_SHELF,
+ WM8985_EQ3DMODE_MASK,
+ ucontrol->value.enumerated.item[0]
+ << WM8985_EQ3DMODE_SHIFT);
+ /* restore DAC/ADC configuration */
+ snd_soc_component_write(component, WM8985_POWER_MANAGEMENT_2, regpwr2);
+ snd_soc_component_write(component, WM8985_POWER_MANAGEMENT_3, regpwr3);
+ return 0;
+}
+
+static int wm8985_reset(struct snd_soc_component *component)
+{
+ return snd_soc_component_write(component, WM8985_SOFTWARE_RESET, 0x0);
+}
+
+static int wm8985_dac_mute(struct snd_soc_dai *dai, int mute, int direction)
+{
+ struct snd_soc_component *component = dai->component;
+
+ return snd_soc_component_update_bits(component, WM8985_DAC_CONTROL,
+ WM8985_SOFTMUTE_MASK,
+ !!mute << WM8985_SOFTMUTE_SHIFT);
+}
+
+static int wm8985_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
+{
+ struct snd_soc_component *component;
+ u16 format, master, bcp, lrp;
+
+ component = dai->component;
+
+ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case SND_SOC_DAIFMT_I2S:
+ format = 0x2;
+ break;
+ case SND_SOC_DAIFMT_RIGHT_J:
+ format = 0x0;
+ break;
+ case SND_SOC_DAIFMT_LEFT_J:
+ format = 0x1;
+ break;
+ case SND_SOC_DAIFMT_DSP_A:
+ case SND_SOC_DAIFMT_DSP_B:
+ format = 0x3;
+ break;
+ default:
+ dev_err(dai->dev, "Unknown dai format\n");
+ return -EINVAL;
+ }
+
+ snd_soc_component_update_bits(component, WM8985_AUDIO_INTERFACE,
+ WM8985_FMT_MASK, format << WM8985_FMT_SHIFT);
+
+ switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+ case SND_SOC_DAIFMT_CBM_CFM:
+ master = 1;
+ break;
+ case SND_SOC_DAIFMT_CBS_CFS:
+ master = 0;
+ break;
+ default:
+ dev_err(dai->dev, "Unknown master/slave configuration\n");
+ return -EINVAL;
+ }
+
+ snd_soc_component_update_bits(component, WM8985_CLOCK_GEN_CONTROL,
+ WM8985_MS_MASK, master << WM8985_MS_SHIFT);
+
+ /* frame inversion is not valid for dsp modes */
+ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case SND_SOC_DAIFMT_DSP_A:
+ case SND_SOC_DAIFMT_DSP_B:
+ switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+ case SND_SOC_DAIFMT_IB_IF:
+ case SND_SOC_DAIFMT_NB_IF:
+ return -EINVAL;
+ default:
+ break;
+ }
+ break;
+ default:
+ break;
+ }
+
+ bcp = lrp = 0;
+ switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+ case SND_SOC_DAIFMT_NB_NF:
+ break;
+ case SND_SOC_DAIFMT_IB_IF:
+ bcp = lrp = 1;
+ break;
+ case SND_SOC_DAIFMT_IB_NF:
+ bcp = 1;
+ break;
+ case SND_SOC_DAIFMT_NB_IF:
+ lrp = 1;
+ break;
+ default:
+ dev_err(dai->dev, "Unknown polarity configuration\n");
+ return -EINVAL;
+ }
+
+ snd_soc_component_update_bits(component, WM8985_AUDIO_INTERFACE,
+ WM8985_LRP_MASK, lrp << WM8985_LRP_SHIFT);
+ snd_soc_component_update_bits(component, WM8985_AUDIO_INTERFACE,
+ WM8985_BCP_MASK, bcp << WM8985_BCP_SHIFT);
+ return 0;
+}
+
+static int wm8985_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
+{
+ int i;
+ struct snd_soc_component *component;
+ struct wm8985_priv *wm8985;
+ u16 blen, srate_idx;
+ unsigned int tmp;
+ int srate_best;
+
+ component = dai->component;
+ wm8985 = snd_soc_component_get_drvdata(component);
+
+ wm8985->bclk = snd_soc_params_to_bclk(params);
+ if ((int)wm8985->bclk < 0)
+ return wm8985->bclk;
+
+ switch (params_width(params)) {
+ case 16:
+ blen = 0x0;
+ break;
+ case 20:
+ blen = 0x1;
+ break;
+ case 24:
+ blen = 0x2;
+ break;
+ case 32:
+ blen = 0x3;
+ break;
+ default:
+ dev_err(dai->dev, "Unsupported word length %u\n",
+ params_width(params));
+ return -EINVAL;
+ }
+
+ snd_soc_component_update_bits(component, WM8985_AUDIO_INTERFACE,
+ WM8985_WL_MASK, blen << WM8985_WL_SHIFT);
+
+ /*
+ * match to the nearest possible sample rate and rely
+ * on the array index to configure the SR register
+ */
+ srate_idx = 0;
+ srate_best = abs(srates[0] - params_rate(params));
+ for (i = 1; i < ARRAY_SIZE(srates); ++i) {
+ if (abs(srates[i] - params_rate(params)) >= srate_best)
+ continue;
+ srate_idx = i;
+ srate_best = abs(srates[i] - params_rate(params));
+ }
+
+ dev_dbg(dai->dev, "Selected SRATE = %d\n", srates[srate_idx]);
+ snd_soc_component_update_bits(component, WM8985_ADDITIONAL_CONTROL,
+ WM8985_SR_MASK, srate_idx << WM8985_SR_SHIFT);
+
+ dev_dbg(dai->dev, "Target BCLK = %uHz\n", wm8985->bclk);
+ dev_dbg(dai->dev, "SYSCLK = %uHz\n", wm8985->sysclk);
+
+ for (i = 0; i < ARRAY_SIZE(fs_ratios); ++i) {
+ if (wm8985->sysclk / params_rate(params)
+ == fs_ratios[i].ratio)
+ break;
+ }
+
+ if (i == ARRAY_SIZE(fs_ratios)) {
+ dev_err(dai->dev, "Unable to configure MCLK ratio %u/%u\n",
+ wm8985->sysclk, params_rate(params));
+ return -EINVAL;
+ }
+
+ dev_dbg(dai->dev, "MCLK ratio = %dfs\n", fs_ratios[i].ratio);
+ snd_soc_component_update_bits(component, WM8985_CLOCK_GEN_CONTROL,
+ WM8985_MCLKDIV_MASK, i << WM8985_MCLKDIV_SHIFT);
+
+ /* select the appropriate bclk divider */
+ tmp = (wm8985->sysclk / fs_ratios[i].div) * 10;
+ for (i = 0; i < ARRAY_SIZE(bclk_divs); ++i) {
+ if (wm8985->bclk == tmp / bclk_divs[i])
+ break;
+ }
+
+ if (i == ARRAY_SIZE(bclk_divs)) {
+ dev_err(dai->dev, "No matching BCLK divider found\n");
+ return -EINVAL;
+ }
+
+ dev_dbg(dai->dev, "BCLK div = %d\n", i);
+ snd_soc_component_update_bits(component, WM8985_CLOCK_GEN_CONTROL,
+ WM8985_BCLKDIV_MASK, i << WM8985_BCLKDIV_SHIFT);
+ return 0;
+}
+
+struct pll_div {
+ u32 div2:1;
+ u32 n:4;
+ u32 k:24;
+};
+
+#define FIXED_PLL_SIZE ((1ULL << 24) * 10)
+static int pll_factors(struct pll_div *pll_div, unsigned int target,
+ unsigned int source)
+{
+ u64 Kpart;
+ unsigned long int K, Ndiv, Nmod;
+
+ pll_div->div2 = 0;
+ Ndiv = target / source;
+ if (Ndiv < 6) {
+ source >>= 1;
+ pll_div->div2 = 1;
+ Ndiv = target / source;
+ }
+
+ if (Ndiv < 6 || Ndiv > 12) {
+ printk(KERN_ERR "%s: WM8985 N value is not within"
+ " the recommended range: %lu\n", __func__, Ndiv);
+ return -EINVAL;
+ }
+ pll_div->n = Ndiv;
+
+ Nmod = target % source;
+ Kpart = FIXED_PLL_SIZE * (u64)Nmod;
+
+ do_div(Kpart, source);
+
+ K = Kpart & 0xffffffff;
+ if ((K % 10) >= 5)
+ K += 5;
+ K /= 10;
+ pll_div->k = K;
+
+ return 0;
+}
+
+static int wm8985_set_pll(struct snd_soc_dai *dai, int pll_id,
+ int source, unsigned int freq_in,
+ unsigned int freq_out)
+{
+ int ret;
+ struct snd_soc_component *component;
+ struct pll_div pll_div;
+
+ component = dai->component;
+ if (!freq_in || !freq_out) {
+ /* disable the PLL */
+ snd_soc_component_update_bits(component, WM8985_POWER_MANAGEMENT_1,
+ WM8985_PLLEN_MASK, 0);
+ } else {
+ ret = pll_factors(&pll_div, freq_out * 4 * 2, freq_in);
+ if (ret)
+ return ret;
+
+ /* set PLLN and PRESCALE */
+ snd_soc_component_write(component, WM8985_PLL_N,
+ (pll_div.div2 << WM8985_PLL_PRESCALE_SHIFT)
+ | pll_div.n);
+ /* set PLLK */
+ snd_soc_component_write(component, WM8985_PLL_K_3, pll_div.k & 0x1ff);
+ snd_soc_component_write(component, WM8985_PLL_K_2, (pll_div.k >> 9) & 0x1ff);
+ snd_soc_component_write(component, WM8985_PLL_K_1, (pll_div.k >> 18));
+ /* set the source of the clock to be the PLL */
+ snd_soc_component_update_bits(component, WM8985_CLOCK_GEN_CONTROL,
+ WM8985_CLKSEL_MASK, WM8985_CLKSEL);
+ /* enable the PLL */
+ snd_soc_component_update_bits(component, WM8985_POWER_MANAGEMENT_1,
+ WM8985_PLLEN_MASK, WM8985_PLLEN);
+ }
+ return 0;
+}
+
+static int wm8985_set_sysclk(struct snd_soc_dai *dai,
+ int clk_id, unsigned int freq, int dir)
+{
+ struct snd_soc_component *component;
+ struct wm8985_priv *wm8985;
+
+ component = dai->component;
+ wm8985 = snd_soc_component_get_drvdata(component);
+
+ switch (clk_id) {
+ case WM8985_CLKSRC_MCLK:
+ snd_soc_component_update_bits(component, WM8985_CLOCK_GEN_CONTROL,
+ WM8985_CLKSEL_MASK, 0);
+ snd_soc_component_update_bits(component, WM8985_POWER_MANAGEMENT_1,
+ WM8985_PLLEN_MASK, 0);
+ break;
+ case WM8985_CLKSRC_PLL:
+ snd_soc_component_update_bits(component, WM8985_CLOCK_GEN_CONTROL,
+ WM8985_CLKSEL_MASK, WM8985_CLKSEL);
+ break;
+ default:
+ dev_err(dai->dev, "Unknown clock source %d\n", clk_id);
+ return -EINVAL;
+ }
+
+ wm8985->sysclk = freq;
+ return 0;
+}
+
+static int wm8985_set_bias_level(struct snd_soc_component *component,
+ enum snd_soc_bias_level level)
+{
+ int ret;
+ struct wm8985_priv *wm8985;
+
+ wm8985 = snd_soc_component_get_drvdata(component);
+ switch (level) {
+ case SND_SOC_BIAS_ON:
+ case SND_SOC_BIAS_PREPARE:
+ /* VMID at 75k */
+ snd_soc_component_update_bits(component, WM8985_POWER_MANAGEMENT_1,
+ WM8985_VMIDSEL_MASK,
+ 1 << WM8985_VMIDSEL_SHIFT);
+ break;
+ case SND_SOC_BIAS_STANDBY:
+ if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) {
+ ret = regulator_bulk_enable(ARRAY_SIZE(wm8985->supplies),
+ wm8985->supplies);
+ if (ret) {
+ dev_err(component->dev,
+ "Failed to enable supplies: %d\n",
+ ret);
+ return ret;
+ }
+
+ regcache_sync(wm8985->regmap);
+
+ /* enable anti-pop features */
+ snd_soc_component_update_bits(component, WM8985_OUT4_TO_ADC,
+ WM8985_POBCTRL_MASK,
+ WM8985_POBCTRL);
+ /* enable thermal shutdown */
+ snd_soc_component_update_bits(component, WM8985_OUTPUT_CTRL0,
+ WM8985_TSDEN_MASK, WM8985_TSDEN);
+ snd_soc_component_update_bits(component, WM8985_OUTPUT_CTRL0,
+ WM8985_TSOPCTRL_MASK,
+ WM8985_TSOPCTRL);
+ /* enable BIASEN */
+ snd_soc_component_update_bits(component, WM8985_POWER_MANAGEMENT_1,
+ WM8985_BIASEN_MASK, WM8985_BIASEN);
+ /* VMID at 75k */
+ snd_soc_component_update_bits(component, WM8985_POWER_MANAGEMENT_1,
+ WM8985_VMIDSEL_MASK,
+ 1 << WM8985_VMIDSEL_SHIFT);
+ msleep(500);
+ /* disable anti-pop features */
+ snd_soc_component_update_bits(component, WM8985_OUT4_TO_ADC,
+ WM8985_POBCTRL_MASK, 0);
+ }
+ /* VMID at 300k */
+ snd_soc_component_update_bits(component, WM8985_POWER_MANAGEMENT_1,
+ WM8985_VMIDSEL_MASK,
+ 2 << WM8985_VMIDSEL_SHIFT);
+ break;
+ case SND_SOC_BIAS_OFF:
+ /* disable thermal shutdown */
+ snd_soc_component_update_bits(component, WM8985_OUTPUT_CTRL0,
+ WM8985_TSOPCTRL_MASK, 0);
+ snd_soc_component_update_bits(component, WM8985_OUTPUT_CTRL0,
+ WM8985_TSDEN_MASK, 0);
+ /* disable VMIDSEL and BIASEN */
+ snd_soc_component_update_bits(component, WM8985_POWER_MANAGEMENT_1,
+ WM8985_VMIDSEL_MASK | WM8985_BIASEN_MASK,
+ 0);
+ snd_soc_component_write(component, WM8985_POWER_MANAGEMENT_1, 0);
+ snd_soc_component_write(component, WM8985_POWER_MANAGEMENT_2, 0);
+ snd_soc_component_write(component, WM8985_POWER_MANAGEMENT_3, 0);
+
+ regcache_mark_dirty(wm8985->regmap);
+
+ regulator_bulk_disable(ARRAY_SIZE(wm8985->supplies),
+ wm8985->supplies);
+ break;
+ }
+
+ return 0;
+}
+
+static int wm8985_probe(struct snd_soc_component *component)
+{
+ size_t i;
+ struct wm8985_priv *wm8985;
+ int ret;
+
+ wm8985 = snd_soc_component_get_drvdata(component);
+
+ for (i = 0; i < ARRAY_SIZE(wm8985->supplies); i++)
+ wm8985->supplies[i].supply = wm8985_supply_names[i];
+
+ ret = devm_regulator_bulk_get(component->dev, ARRAY_SIZE(wm8985->supplies),
+ wm8985->supplies);
+ if (ret) {
+ dev_err(component->dev, "Failed to request supplies: %d\n", ret);
+ return ret;
+ }
+
+ ret = regulator_bulk_enable(ARRAY_SIZE(wm8985->supplies),
+ wm8985->supplies);
+ if (ret) {
+ dev_err(component->dev, "Failed to enable supplies: %d\n", ret);
+ return ret;
+ }
+
+ ret = wm8985_reset(component);
+ if (ret < 0) {
+ dev_err(component->dev, "Failed to issue reset: %d\n", ret);
+ goto err_reg_enable;
+ }
+
+ /* latch volume update bits */
+ for (i = 0; i < ARRAY_SIZE(volume_update_regs); ++i)
+ snd_soc_component_update_bits(component, volume_update_regs[i],
+ 0x100, 0x100);
+ /* enable BIASCUT */
+ snd_soc_component_update_bits(component, WM8985_BIAS_CTRL, WM8985_BIASCUT,
+ WM8985_BIASCUT);
+
+ wm8985_add_widgets(component);
+
+ return 0;
+
+err_reg_enable:
+ regulator_bulk_disable(ARRAY_SIZE(wm8985->supplies), wm8985->supplies);
+ return ret;
+}
+
+static const struct snd_soc_dai_ops wm8985_dai_ops = {
+ .mute_stream = wm8985_dac_mute,
+ .hw_params = wm8985_hw_params,
+ .set_fmt = wm8985_set_fmt,
+ .set_sysclk = wm8985_set_sysclk,
+ .set_pll = wm8985_set_pll,
+ .no_capture_mute = 1,
+};
+
+#define WM8985_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
+ SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
+
+static struct snd_soc_dai_driver wm8985_dai = {
+ .name = "wm8985-hifi",
+ .playback = {
+ .stream_name = "Playback",
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_8000_48000,
+ .formats = WM8985_FORMATS,
+ },
+ .capture = {
+ .stream_name = "Capture",
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_8000_48000,
+ .formats = WM8985_FORMATS,
+ },
+ .ops = &wm8985_dai_ops,
+ .symmetric_rates = 1
+};
+
+static const struct snd_soc_component_driver soc_component_dev_wm8985 = {
+ .probe = wm8985_probe,
+ .set_bias_level = wm8985_set_bias_level,
+ .controls = wm8985_common_snd_controls,
+ .num_controls = ARRAY_SIZE(wm8985_common_snd_controls),
+ .dapm_widgets = wm8985_common_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(wm8985_common_dapm_widgets),
+ .dapm_routes = wm8985_common_dapm_routes,
+ .num_dapm_routes = ARRAY_SIZE(wm8985_common_dapm_routes),
+ .suspend_bias_off = 1,
+ .idle_bias_on = 1,
+ .use_pmdown_time = 1,
+ .endianness = 1,
+ .non_legacy_dai_naming = 1,
+};
+
+static const struct regmap_config wm8985_regmap = {
+ .reg_bits = 7,
+ .val_bits = 9,
+
+ .max_register = WM8985_MAX_REGISTER,
+ .writeable_reg = wm8985_writeable,
+
+ .cache_type = REGCACHE_RBTREE,
+ .reg_defaults = wm8985_reg_defaults,
+ .num_reg_defaults = ARRAY_SIZE(wm8985_reg_defaults),
+};
+
+#if defined(CONFIG_SPI_MASTER)
+static int wm8985_spi_probe(struct spi_device *spi)
+{
+ struct wm8985_priv *wm8985;
+ int ret;
+
+ wm8985 = devm_kzalloc(&spi->dev, sizeof *wm8985, GFP_KERNEL);
+ if (!wm8985)
+ return -ENOMEM;
+
+ spi_set_drvdata(spi, wm8985);
+
+ wm8985->dev_type = WM8985;
+
+ wm8985->regmap = devm_regmap_init_spi(spi, &wm8985_regmap);
+ if (IS_ERR(wm8985->regmap)) {
+ ret = PTR_ERR(wm8985->regmap);
+ dev_err(&spi->dev, "Failed to allocate register map: %d\n",
+ ret);
+ return ret;
+ }
+
+ ret = devm_snd_soc_register_component(&spi->dev,
+ &soc_component_dev_wm8985, &wm8985_dai, 1);
+ return ret;
+}
+
+static struct spi_driver wm8985_spi_driver = {
+ .driver = {
+ .name = "wm8985",
+ },
+ .probe = wm8985_spi_probe,
+};
+#endif
+
+#if IS_ENABLED(CONFIG_I2C)
+static int wm8985_i2c_probe(struct i2c_client *i2c,
+ const struct i2c_device_id *id)
+{
+ struct wm8985_priv *wm8985;
+ int ret;
+
+ wm8985 = devm_kzalloc(&i2c->dev, sizeof *wm8985, GFP_KERNEL);
+ if (!wm8985)
+ return -ENOMEM;
+
+ i2c_set_clientdata(i2c, wm8985);
+
+ wm8985->dev_type = id->driver_data;
+
+ wm8985->regmap = devm_regmap_init_i2c(i2c, &wm8985_regmap);
+ if (IS_ERR(wm8985->regmap)) {
+ ret = PTR_ERR(wm8985->regmap);
+ dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
+ ret);
+ return ret;
+ }
+
+ ret = devm_snd_soc_register_component(&i2c->dev,
+ &soc_component_dev_wm8985, &wm8985_dai, 1);
+ return ret;
+}
+
+static const struct i2c_device_id wm8985_i2c_id[] = {
+ { "wm8985", WM8985 },
+ { "wm8758", WM8758 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, wm8985_i2c_id);
+
+static struct i2c_driver wm8985_i2c_driver = {
+ .driver = {
+ .name = "wm8985",
+ },
+ .probe = wm8985_i2c_probe,
+ .id_table = wm8985_i2c_id
+};
+#endif
+
+static int __init wm8985_modinit(void)
+{
+ int ret = 0;
+
+#if IS_ENABLED(CONFIG_I2C)
+ ret = i2c_add_driver(&wm8985_i2c_driver);
+ if (ret) {
+ printk(KERN_ERR "Failed to register wm8985 I2C driver: %d\n",
+ ret);
+ }
+#endif
+#if defined(CONFIG_SPI_MASTER)
+ ret = spi_register_driver(&wm8985_spi_driver);
+ if (ret != 0) {
+ printk(KERN_ERR "Failed to register wm8985 SPI driver: %d\n",
+ ret);
+ }
+#endif
+ return ret;
+}
+module_init(wm8985_modinit);
+
+static void __exit wm8985_exit(void)
+{
+#if IS_ENABLED(CONFIG_I2C)
+ i2c_del_driver(&wm8985_i2c_driver);
+#endif
+#if defined(CONFIG_SPI_MASTER)
+ spi_unregister_driver(&wm8985_spi_driver);
+#endif
+}
+module_exit(wm8985_exit);
+
+MODULE_DESCRIPTION("ASoC WM8985 / WM8758 driver");
+MODULE_AUTHOR("Dimitris Papastamos <dp@opensource.wolfsonmicro.com>");
+MODULE_LICENSE("GPL");
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-25 00:37:13 +0000