From 57b9cc640c2197566bedeb97acaf51ec8d8f2100 Mon Sep 17 00:00:00 2001 From: Baozhu Zuo Date: Thu, 27 Apr 2017 15:31:04 +0800 Subject: [PATCH] add all project files --- Makefile | 11 + asound.state | 758 +++++++++++++++++++ builddtbo.sh | 4 + seeed-voicecard-overlay.dts | 123 ++++ seeed-voicecard.dtbo | Bin 0 -> 3449 bytes wm8960.c | 1393 +++++++++++++++++++++++++++++++++++ 6 files changed, 2289 insertions(+) create mode 100644 Makefile create mode 100644 asound.state create mode 100755 builddtbo.sh create mode 100644 seeed-voicecard-overlay.dts create mode 100644 seeed-voicecard.dtbo create mode 100644 wm8960.c diff --git a/Makefile b/Makefile new file mode 100644 index 0000000..d62649d --- /dev/null +++ b/Makefile @@ -0,0 +1,11 @@ +obj-m := wm8960.o + +all: + make -C /lib/modules/$(shell uname -r)/build M=$(PWD) modules + +clean: + make -C /lib/modules/$(shell uname -r)/build M=$(PWD) clean + +install: + sudo cp wm8960.ko /lib/modules/$(shell uname -r) + sudo depmod -a diff --git a/asound.state b/asound.state new file mode 100644 index 0000000..c1886a0 --- /dev/null +++ b/asound.state @@ -0,0 +1,758 @@ +state.ALSA { + control.1 { + iface MIXER + name 'PCM Playback Volume' + value -2000 + comment { + access 'read write' + type INTEGER + count 1 + range '-10239 - 400' + dbmin -9999999 + dbmax 400 + dbvalue.0 -2000 + } + } + control.2 { + iface MIXER + name 'PCM Playback Switch' + value true + comment { + access 'read write' + type BOOLEAN + count 1 + } + } + control.3 { + iface MIXER + name 'PCM Playback Route' + value 0 + comment { + access 'read write' + type INTEGER + count 1 + range '0 - 2' + } + } + control.4 { + iface PCM + name 'IEC958 Playback Default' + value '0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000' + comment { + access 'read write' + type IEC958 + count 1 + } + } + control.5 { + iface PCM + name 'IEC958 Playback Con Mask' + value '0200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000' + comment { + access read + type IEC958 + count 1 + } + } + control.6 { + iface PCM + name 'IEC958 Playback PCM Stream' + value '0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000' + comment { + access 'read write inactive' + type IEC958 + count 1 + } + } +} +state.seeedvoicecard { + control.1 { + iface MIXER + name 'Capture Volume' + value.0 58 + value.1 58 + comment { + access 'read write' + type INTEGER + count 2 + range '0 - 63' + dbmin -1725 + dbmax 3000 + dbvalue.0 2625 + dbvalue.1 2625 + } + } + control.2 { + iface MIXER + name 'Capture Volume ZC Switch' + value.0 0 + value.1 0 + comment { + access 'read write' + type INTEGER + count 2 + range '0 - 1' + } + } + control.3 { + iface MIXER + name 'Capture Switch' + value.0 true + value.1 true + comment { + access 'read write' + type BOOLEAN + count 2 + } + } + control.4 { + iface MIXER + name 'Left Input Boost Mixer LINPUT3 Volume' + value 0 + comment { + access 'read write' + type INTEGER + count 1 + range '0 - 7' + dbmin -9999999 + dbmax 600 + dbvalue.0 -9999999 + } + } + control.5 { + iface MIXER + name 'Left Input Boost Mixer LINPUT2 Volume' + value 0 + comment { + access 'read write' + type INTEGER + count 1 + range '0 - 7' + dbmin -9999999 + dbmax 600 + dbvalue.0 -9999999 + } + } + control.6 { + iface MIXER + name 'Right Input Boost Mixer RINPUT3 Volume' + value 0 + comment { + access 'read write' + type INTEGER + count 1 + range '0 - 7' + dbmin -9999999 + dbmax 600 + dbvalue.0 -9999999 + } + } + control.7 { + iface MIXER + name 'Right Input Boost Mixer RINPUT2 Volume' + value 0 + comment { + access 'read write' + type INTEGER + count 1 + range '0 - 7' + dbmin -9999999 + dbmax 600 + dbvalue.0 -9999999 + } + } + control.8 { + iface MIXER + name 'Right Input Boost Mixer RINPUT1 Volume' + value 0 + comment { + access 'read write' + type INTEGER + count 1 + range '0 - 3' + dbmin 0 + dbmax 2900 + dbvalue.0 0 + } + } + control.9 { + iface MIXER + name 'Left Input Boost Mixer LINPUT1 Volume' + value 0 + comment { + access 'read write' + type INTEGER + count 1 + range '0 - 3' + dbmin 0 + dbmax 2900 + dbvalue.0 0 + } + } + control.10 { + iface MIXER + name 'Playback Volume' + value.0 255 + value.1 255 + comment { + access 'read write' + type INTEGER + count 2 + range '0 - 255' + dbmin -9999999 + dbmax 0 + dbvalue.0 0 + dbvalue.1 0 + } + } + control.11 { + iface MIXER + name 'Headphone Playback Volume' + value.0 103 + value.1 103 + comment { + access 'read write' + type INTEGER + count 2 + range '0 - 127' + dbmin -9999999 + dbmax 600 + dbvalue.0 -1800 + dbvalue.1 -1800 + } + } + control.12 { + iface MIXER + name 'Headphone Playback ZC Switch' + value.0 false + value.1 false + comment { + access 'read write' + type BOOLEAN + count 2 + } + } + control.13 { + iface MIXER + name 'Speaker Playback Volume' + value.0 127 + value.1 127 + comment { + access 'read write' + type INTEGER + count 2 + range '0 - 127' + dbmin -9999999 + dbmax 600 + dbvalue.0 600 + dbvalue.1 600 + } + } + control.14 { + iface MIXER + name 'Speaker Playback ZC Switch' + value.0 false + value.1 false + comment { + access 'read write' + type BOOLEAN + count 2 + } + } + control.15 { + iface MIXER + name 'Speaker DC Volume' + value 4 + comment { + access 'read write' + type INTEGER + count 1 + range '0 - 5' + } + } + control.16 { + iface MIXER + name 'Speaker AC Volume' + value 5 + comment { + access 'read write' + type INTEGER + count 1 + range '0 - 5' + } + } + control.17 { + iface MIXER + name 'PCM Playback -6dB Switch' + value false + comment { + access 'read write' + type BOOLEAN + count 1 + } + } + control.18 { + iface MIXER + name 'ADC Polarity' + value 'No Inversion' + comment { + access 'read write' + type ENUMERATED + count 1 + item.0 'No Inversion' + item.1 'Left Inverted' + item.2 'Right Inverted' + item.3 'Stereo Inversion' + } + } + control.19 { + iface MIXER + name 'ADC High Pass Filter Switch' + value false + comment { + access 'read write' + type BOOLEAN + count 1 + } + } + control.20 { + iface MIXER + name 'DAC Polarity' + value 'No Inversion' + comment { + access 'read write' + type ENUMERATED + count 1 + item.0 'No Inversion' + item.1 'Left Inverted' + item.2 'Right Inverted' + item.3 'Stereo Inversion' + } + } + control.21 { + iface MIXER + name 'DAC Deemphasis Switch' + value false + comment { + access 'read write' + type BOOLEAN + count 1 + } + } + control.22 { + iface MIXER + name '3D Filter Upper Cut-Off' + value High + comment { + access 'read write' + type ENUMERATED + count 1 + item.0 High + item.1 Low + } + } + control.23 { + iface MIXER + name '3D Filter Lower Cut-Off' + value Low + comment { + access 'read write' + type ENUMERATED + count 1 + item.0 Low + item.1 High + } + } + control.24 { + iface MIXER + name '3D Volume' + value 0 + comment { + access 'read write' + type INTEGER + count 1 + range '0 - 15' + } + } + control.25 { + iface MIXER + name '3D Switch' + value false + comment { + access 'read write' + type BOOLEAN + count 1 + } + } + control.26 { + iface MIXER + name 'ALC Function' + value Off + comment { + access 'read write' + type ENUMERATED + count 1 + item.0 Off + item.1 Right + item.2 Left + item.3 Stereo + } + } + control.27 { + iface MIXER + name 'ALC Max Gain' + value 7 + comment { + access 'read write' + type INTEGER + count 1 + range '0 - 7' + } + } + control.28 { + iface MIXER + name 'ALC Target' + value 4 + comment { + access 'read write' + type INTEGER + count 1 + range '0 - 15' + } + } + control.29 { + iface MIXER + name 'ALC Min Gain' + value 0 + comment { + access 'read write' + type INTEGER + count 1 + range '0 - 7' + } + } + control.30 { + iface MIXER + name 'ALC Hold Time' + value 0 + comment { + access 'read write' + type INTEGER + count 1 + range '0 - 15' + } + } + control.31 { + iface MIXER + name 'ALC Mode' + value ALC + comment { + access 'read write' + type ENUMERATED + count 1 + item.0 ALC + item.1 Limiter + } + } + control.32 { + iface MIXER + name 'ALC Decay' + value 3 + comment { + access 'read write' + type INTEGER + count 1 + range '0 - 15' + } + } + control.33 { + iface MIXER + name 'ALC Attack' + value 2 + comment { + access 'read write' + type INTEGER + count 1 + range '0 - 15' + } + } + control.34 { + iface MIXER + name 'Noise Gate Threshold' + value 0 + comment { + access 'read write' + type INTEGER + count 1 + range '0 - 31' + } + } + control.35 { + iface MIXER + name 'Noise Gate Switch' + value false + comment { + access 'read write' + type BOOLEAN + count 1 + } + } + control.36 { + iface MIXER + name 'ADC PCM Capture Volume' + value.0 195 + value.1 195 + comment { + access 'read write' + type INTEGER + count 2 + range '0 - 255' + dbmin -9999999 + dbmax 3000 + dbvalue.0 0 + dbvalue.1 0 + } + } + control.37 { + iface MIXER + name 'Left Output Mixer Boost Bypass Volume' + value 2 + comment { + access 'read write' + type INTEGER + count 1 + range '0 - 7' + dbmin -2100 + dbmax 0 + dbvalue.0 -1500 + } + } + control.38 { + iface MIXER + name 'Left Output Mixer LINPUT3 Volume' + value 2 + comment { + access 'read write' + type INTEGER + count 1 + range '0 - 7' + dbmin -2100 + dbmax 0 + dbvalue.0 -1500 + } + } + control.39 { + iface MIXER + name 'Right Output Mixer Boost Bypass Volume' + value 5 + comment { + access 'read write' + type INTEGER + count 1 + range '0 - 7' + dbmin -2100 + dbmax 0 + dbvalue.0 -600 + } + } + control.40 { + iface MIXER + name 'Right Output Mixer RINPUT3 Volume' + value 2 + comment { + access 'read write' + type INTEGER + count 1 + range '0 - 7' + dbmin -2100 + dbmax 0 + dbvalue.0 -1500 + } + } + control.41 { + iface MIXER + name 'ADC Data Output Select' + value 'Left Data = Left ADC; Right Data = Right ADC' + comment { + access 'read write' + type ENUMERATED + count 1 + item.0 'Left Data = Left ADC; Right Data = Right ADC' + item.1 'Left Data = Left ADC; Right Data = Left ADC' + item.2 'Left Data = Right ADC; Right Data = Right ADC' + item.3 'Left Data = Right ADC; Right Data = Left ADC' + } + } + control.42 { + iface MIXER + name 'DAC Mono Mix' + value Stereo + comment { + access 'read write' + type ENUMERATED + count 1 + item.0 Stereo + item.1 Mono + } + } + control.43 { + iface MIXER + name 'Left Boost Mixer LINPUT2 Switch' + value true + comment { + access 'read write' + type BOOLEAN + count 1 + } + } + control.44 { + iface MIXER + name 'Left Boost Mixer LINPUT3 Switch' + value false + comment { + access 'read write' + type BOOLEAN + count 1 + } + } + control.45 { + iface MIXER + name 'Left Boost Mixer LINPUT1 Switch' + value true + comment { + access 'read write' + type BOOLEAN + count 1 + } + } + control.46 { + iface MIXER + name 'Right Boost Mixer RINPUT2 Switch' + value true + comment { + access 'read write' + type BOOLEAN + count 1 + } + } + control.47 { + iface MIXER + name 'Right Boost Mixer RINPUT3 Switch' + value false + comment { + access 'read write' + type BOOLEAN + count 1 + } + } + control.48 { + iface MIXER + name 'Right Boost Mixer RINPUT1 Switch' + value true + comment { + access 'read write' + type BOOLEAN + count 1 + } + } + control.49 { + iface MIXER + name 'Left Input Mixer Boost Switch' + value true + comment { + access 'read write' + type BOOLEAN + count 1 + } + } + control.50 { + iface MIXER + name 'Right Input Mixer Boost Switch' + value true + comment { + access 'read write' + type BOOLEAN + count 1 + } + } + control.51 { + iface MIXER + name 'Left Output Mixer PCM Playback Switch' + value true + comment { + access 'read write' + type BOOLEAN + count 1 + } + } + control.52 { + iface MIXER + name 'Left Output Mixer LINPUT3 Switch' + value false + comment { + access 'read write' + type BOOLEAN + count 1 + } + } + control.53 { + iface MIXER + name 'Left Output Mixer Boost Bypass Switch' + value false + comment { + access 'read write' + type BOOLEAN + count 1 + } + } + control.54 { + iface MIXER + name 'Right Output Mixer PCM Playback Switch' + value true + comment { + access 'read write' + type BOOLEAN + count 1 + } + } + control.55 { + iface MIXER + name 'Right Output Mixer RINPUT3 Switch' + value false + comment { + access 'read write' + type BOOLEAN + count 1 + } + } + control.56 { + iface MIXER + name 'Right Output Mixer Boost Bypass Switch' + value false + comment { + access 'read write' + type BOOLEAN + count 1 + } + } + control.57 { + iface MIXER + name 'Mono Output Mixer Left Switch' + value false + comment { + access 'read write' + type BOOLEAN + count 1 + } + } + control.58 { + iface MIXER + name 'Mono Output Mixer Right Switch' + value false + comment { + access 'read write' + type BOOLEAN + count 1 + } + } +} diff --git a/builddtbo.sh b/builddtbo.sh new file mode 100755 index 0000000..7398aeb --- /dev/null +++ b/builddtbo.sh @@ -0,0 +1,4 @@ +dtoverlay -r seeed-voicecard +dtc -@ -I dts -O dtb -o seeed-voicecard.dtbo seeed-voicecard-overlay.dts +cp seeed-voicecard.dtbo /boot/overlays +dtoverlay seeed-voicecard diff --git a/seeed-voicecard-overlay.dts b/seeed-voicecard-overlay.dts new file mode 100644 index 0000000..1503409 --- /dev/null +++ b/seeed-voicecard-overlay.dts @@ -0,0 +1,123 @@ +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&i2s>; + __overlay__ { + status = "okay"; + }; + }; + fragment@1 { + target-path="/"; + __overlay__ { + wm8960_mclk: wm8960_mclk { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <12288000>; + }; + + }; + }; + fragment@2 { + target = <&i2c1>; + __overlay__ { + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + + wm8960: wm8960{ + compatible = "wlf,wm8960"; + reg = <0x1a>; + #sound-dai-cells = <0>; + AVDD-supply = <&vdd_5v0_reg>; + DVDD-supply = <&vdd_3v3_reg>; + }; + }; + }; + + fragment@3 { + target = <&sound>; + master_overlay: __dormant__ { + compatible = "simple-audio-card"; + simple-audio-card,format = "i2s"; + simple-audio-card,name = "seeed-voicecard"; + simple-audio-card,bitclock-master = <&dailink0_master>; + simple-audio-card,frame-master = <&dailink0_master>; + status = "okay"; + simple-audio-card,widgets = + "Microphone", "Mic Jack", + "Line", "Line In", + "Line", "Line Out", + "Speaker", "Speaker", + "Headphone", "Headphone Jack"; + simple-audio-card,routing = + "Headphone Jack", "HP_L", + "Headphone Jack", "HP_R", + "Speaker", "SPK_LP", + "Speaker", "SPK_LN", + "LINPUT1", "Mic Jack", + "LINPUT3", "Mic Jack", + "RINPUT1", "Mic Jack", + "RINPUT2", "Mic Jack"; + + + simple-audio-card,cpu { + sound-dai = <&i2s>; + }; + dailink0_master: simple-audio-card,codec { + sound-dai = <&wm8960>; + clocks = <&wm8960_mclk>; + clock-names = "mclk"; + }; + }; + }; + + fragment@4 { + target = <&sound>; + slave_overlay: __overlay__ { + compatible = "simple-audio-card"; + simple-audio-card,format = "i2s"; + simple-audio-card,name = "seeed-voicecard"; + status = "okay"; + simple-audio-card,widgets = + "Microphone", "Mic Jack", + "Line", "Line In", + "Line", "Line Out", + "Speaker", "Speaker", + "Headphone", "Headphone Jack"; + simple-audio-card,routing = + "Headphone Jack", "HP_L", + "Headphone Jack", "HP_R", + "Speaker", "SPK_LP", + "Speaker", "SPK_LN", + "LINPUT1", "Mic Jack", + "LINPUT3", "Mic Jack", + "RINPUT1", "Mic Jack", + "RINPUT2", "Mic Jack"; + + + + + simple-audio-card,cpu { + sound-dai = <&i2s>; + }; + dailink0_slave: simple-audio-card,codec { + sound-dai = <&wm8960>; + clocks = <&wm8960_mclk>; + clock-names = "mclk"; + + }; + }; + }; + + __overrides__ { + alsaname = <&master_overlay>,"simple-audio-card,name", + <&slave_overlay>,"simple-audio-card,name"; + compatible = <&wm8960>,"compatible"; + master = <0>,"=2!3"; + }; +}; + diff --git a/seeed-voicecard.dtbo b/seeed-voicecard.dtbo new file mode 100644 index 0000000000000000000000000000000000000000..76a2d24df7c9c9a72248744ab7f6430c8e53bd16 GIT binary patch literal 3449 zcmeHK&5IOA6t6ZKT-GItAeeYinFK(m9Fkt zCnql+6t96C1DN=r#-8AkKn%9yxu4I%t}sN1oiVyIoS_n$-sg_WgO(r6 z$mlcrrS<5u?QhfP0cZ`@@;S_kgr=p*@ks>oD9K~y(khHHH=sp`lg9q1$m3eZTKttW z26>xgQNT1>^ZEnycKrUf8Ie>$3=1H1HrGR@;A} z#wbH>oE`mw8Vo^xc0Q3G%D9g1=3QHZ*?Rp$&z4tNcW>%SyfKZ~W8N?>D%S+_hVtuF zS8vboLs{1pKGmI6L?Pqy#FGA80M#wfA8prsN)rYea%{0muJI0{pdAUaB&TIGiiMqs z*AmSCg~|=@ygW%IFW|$c$ta5z8;tFTz$NI_m+NZJx<`9+?!B{s&kWw1gU6i(kJEsi z80-MBt@9ghbLZ{?Os^e;z&;aj{U43(n$1OX!1W(4z#O)|${$?qH1^@1ukt#D*4-?l z3vq4vg=Zk%CD?Qg<6VMnUJcuRfvvM4q1x8LvkqIMzUs8eb8Ge+=#}jwYob-h$AKr- zF}5?%wVz@Fel%C$)rcVC?t$$ilb8N_NsC=puJ?(VY!uAAWaZU5&#E+ZLmD+K8>R3P zmXa~@It9EQ8w#G`WiT#ao>&;W?$kT8e)+r2O_x`B9#4T;)Asil*lsSc{RH-XW^4zB zo0(iQlVVeygC*;nkfA2Lq-Dj4lw3GO_DDy3%en!JV@~9FT(IvemIhN2M`?AtoA1#y zgu|vo!?0kSD{zNLKQJ{e*e>bRiBXeQK#1jF``fKM#&5iGjzS!c?K5E%m6B>gc?q9Y zZ3Mh033C^!526rCkIykIvZ{>IT~a$EgQ8=DggBuwr-GV&T&hoKxu^bXLZD6|iu>?a lLQ#$BgtfICrwM+wMqaQ=CSmA*I_diuR~!!}12Gn?$o~wK`NaSL literal 0 HcmV?d00001 diff --git a/wm8960.c b/wm8960.c new file mode 100644 index 0000000..0e07230 --- /dev/null +++ b/wm8960.c @@ -0,0 +1,1393 @@ +/* + * wm8960.c -- WM8960 ALSA SoC Audio driver + * + * Copyright 2007-11 Wolfson Microelectronics, plc + * + * Author: Liam Girdwood + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "wm8960.h" + +/* R25 - Power 1 */ +#define WM8960_VMID_MASK 0x180 +#define WM8960_VREF 0x40 + +/* R26 - Power 2 */ +#define WM8960_PWR2_LOUT1 0x40 +#define WM8960_PWR2_ROUT1 0x20 +#define WM8960_PWR2_OUT3 0x02 + +/* R28 - Anti-pop 1 */ +#define WM8960_POBCTRL 0x80 +#define WM8960_BUFDCOPEN 0x10 +#define WM8960_BUFIOEN 0x08 +#define WM8960_SOFT_ST 0x04 +#define WM8960_HPSTBY 0x01 + +/* R29 - Anti-pop 2 */ +#define WM8960_DISOP 0x40 +#define WM8960_DRES_MASK 0x30 + +static bool is_pll_freq_available(unsigned int source, unsigned int target); +static int wm8960_set_pll(struct snd_soc_codec *codec, + unsigned int freq_in, unsigned int freq_out); +/* + * wm8960 register cache + * We can't read the WM8960 register space when we are + * using 2 wire for device control, so we cache them instead. + */ +static const struct reg_default wm8960_reg_defaults[] = { + { 0x0, 0x00a7 }, + { 0x1, 0x00a7 }, + { 0x2, 0x0000 }, + { 0x3, 0x0000 }, + { 0x4, 0x0000 }, + { 0x5, 0x0008 }, + { 0x6, 0x0000 }, + { 0x7, 0x000a }, + { 0x8, 0x01c0 }, + { 0x9, 0x0000 }, + { 0xa, 0x00ff }, + { 0xb, 0x00ff }, + + { 0x10, 0x0000 }, + { 0x11, 0x007b }, + { 0x12, 0x0100 }, + { 0x13, 0x0032 }, + { 0x14, 0x0000 }, + { 0x15, 0x00c3 }, + { 0x16, 0x00c3 }, + { 0x17, 0x01c0 }, + { 0x18, 0x0000 }, + { 0x19, 0x0000 }, + { 0x1a, 0x0000 }, + { 0x1b, 0x0000 }, + { 0x1c, 0x0000 }, + { 0x1d, 0x0000 }, + + { 0x20, 0x0100 }, + { 0x21, 0x0100 }, + { 0x22, 0x0050 }, + + { 0x25, 0x0050 }, + { 0x26, 0x0000 }, + { 0x27, 0x0000 }, + { 0x28, 0x0000 }, + { 0x29, 0x0000 }, + { 0x2a, 0x0040 }, + { 0x2b, 0x0000 }, + { 0x2c, 0x0000 }, + { 0x2d, 0x0050 }, + { 0x2e, 0x0050 }, + { 0x2f, 0x0000 }, + { 0x30, 0x0002 }, + { 0x31, 0x0037 }, + + { 0x33, 0x0080 }, + { 0x34, 0x0008 }, + { 0x35, 0x0031 }, + { 0x36, 0x0026 }, + { 0x37, 0x00e9 }, +}; + +static bool wm8960_volatile(struct device *dev, unsigned int reg) +{ + switch (reg) { + case WM8960_RESET: + return true; + default: + return false; + } +} + +struct wm8960_priv { + struct clk *mclk; + struct regmap *regmap; + int (*set_bias_level)(struct snd_soc_codec *, + enum snd_soc_bias_level level); + struct snd_soc_dapm_widget *lout1; + struct snd_soc_dapm_widget *rout1; + struct snd_soc_dapm_widget *out3; + bool deemph; + int lrclk; + int bclk; + int sysclk; + int clk_id; + int freq_in; + bool is_stream_in_use[2]; + struct wm8960_data pdata; +}; + +#define wm8960_reset(c) regmap_write(c, WM8960_RESET, 0) + +/* enumerated controls */ +static const char *wm8960_polarity[] = {"No Inversion", "Left Inverted", + "Right Inverted", "Stereo Inversion"}; +static const char *wm8960_3d_upper_cutoff[] = {"High", "Low"}; +static const char *wm8960_3d_lower_cutoff[] = {"Low", "High"}; +static const char *wm8960_alcfunc[] = {"Off", "Right", "Left", "Stereo"}; +static const char *wm8960_alcmode[] = {"ALC", "Limiter"}; +static const char *wm8960_adc_data_output_sel[] = { + "Left Data = Left ADC; Right Data = Right ADC", + "Left Data = Left ADC; Right Data = Left ADC", + "Left Data = Right ADC; Right Data = Right ADC", + "Left Data = Right ADC; Right Data = Left ADC", +}; +static const char *wm8960_dmonomix[] = {"Stereo", "Mono"}; + +static const struct soc_enum wm8960_enum[] = { + SOC_ENUM_SINGLE(WM8960_DACCTL1, 5, 4, wm8960_polarity), + SOC_ENUM_SINGLE(WM8960_DACCTL2, 5, 4, wm8960_polarity), + SOC_ENUM_SINGLE(WM8960_3D, 6, 2, wm8960_3d_upper_cutoff), + SOC_ENUM_SINGLE(WM8960_3D, 5, 2, wm8960_3d_lower_cutoff), + SOC_ENUM_SINGLE(WM8960_ALC1, 7, 4, wm8960_alcfunc), + SOC_ENUM_SINGLE(WM8960_ALC3, 8, 2, wm8960_alcmode), + SOC_ENUM_SINGLE(WM8960_ADDCTL1, 2, 4, wm8960_adc_data_output_sel), + SOC_ENUM_SINGLE(WM8960_ADDCTL1, 4, 2, wm8960_dmonomix), +}; + +static const int deemph_settings[] = { 0, 32000, 44100, 48000 }; + +static int wm8960_set_deemph(struct snd_soc_codec *codec) +{ + struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); + int val, i, best; + + /* If we're using deemphasis select the nearest available sample + * rate. + */ + if (wm8960->deemph) { + best = 1; + for (i = 2; i < ARRAY_SIZE(deemph_settings); i++) { + if (abs(deemph_settings[i] - wm8960->lrclk) < + abs(deemph_settings[best] - wm8960->lrclk)) + best = i; + } + + val = best << 1; + } else { + val = 0; + } + + dev_dbg(codec->dev, "Set deemphasis %d\n", val); + + return snd_soc_update_bits(codec, WM8960_DACCTL1, + 0x6, val); +} + +static int wm8960_get_deemph(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); + struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); + + ucontrol->value.integer.value[0] = wm8960->deemph; + return 0; +} + +static int wm8960_put_deemph(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); + struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); + unsigned int deemph = ucontrol->value.integer.value[0]; + + if (deemph > 1) + return -EINVAL; + + wm8960->deemph = deemph; + + return wm8960_set_deemph(codec); +} + +static const DECLARE_TLV_DB_SCALE(adc_tlv, -9750, 50, 1); +static const DECLARE_TLV_DB_SCALE(inpga_tlv, -1725, 75, 0); +static const DECLARE_TLV_DB_SCALE(dac_tlv, -12750, 50, 1); +static const DECLARE_TLV_DB_SCALE(bypass_tlv, -2100, 300, 0); +static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1); +static const DECLARE_TLV_DB_SCALE(lineinboost_tlv, -1500, 300, 1); +static const SNDRV_CTL_TLVD_DECLARE_DB_RANGE(micboost_tlv, + 0, 1, TLV_DB_SCALE_ITEM(0, 1300, 0), + 2, 3, TLV_DB_SCALE_ITEM(2000, 900, 0), +); + +static const struct snd_kcontrol_new wm8960_snd_controls[] = { +SOC_DOUBLE_R_TLV("Capture Volume", WM8960_LINVOL, WM8960_RINVOL, + 0, 63, 0, inpga_tlv), +SOC_DOUBLE_R("Capture Volume ZC Switch", WM8960_LINVOL, WM8960_RINVOL, + 6, 1, 0), +SOC_DOUBLE_R("Capture Switch", WM8960_LINVOL, WM8960_RINVOL, + 7, 1, 1), + +SOC_SINGLE_TLV("Left Input Boost Mixer LINPUT3 Volume", + WM8960_INBMIX1, 4, 7, 0, lineinboost_tlv), +SOC_SINGLE_TLV("Left Input Boost Mixer LINPUT2 Volume", + WM8960_INBMIX1, 1, 7, 0, lineinboost_tlv), +SOC_SINGLE_TLV("Right Input Boost Mixer RINPUT3 Volume", + WM8960_INBMIX2, 4, 7, 0, lineinboost_tlv), +SOC_SINGLE_TLV("Right Input Boost Mixer RINPUT2 Volume", + WM8960_INBMIX2, 1, 7, 0, lineinboost_tlv), +SOC_SINGLE_TLV("Right Input Boost Mixer RINPUT1 Volume", + WM8960_RINPATH, 4, 3, 0, micboost_tlv), +SOC_SINGLE_TLV("Left Input Boost Mixer LINPUT1 Volume", + WM8960_LINPATH, 4, 3, 0, micboost_tlv), + +SOC_DOUBLE_R_TLV("Playback Volume", WM8960_LDAC, WM8960_RDAC, + 0, 255, 0, dac_tlv), + +SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8960_LOUT1, WM8960_ROUT1, + 0, 127, 0, out_tlv), +SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8960_LOUT1, WM8960_ROUT1, + 7, 1, 0), + +SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8960_LOUT2, WM8960_ROUT2, + 0, 127, 0, out_tlv), +SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8960_LOUT2, WM8960_ROUT2, + 7, 1, 0), +SOC_SINGLE("Speaker DC Volume", WM8960_CLASSD3, 3, 5, 0), +SOC_SINGLE("Speaker AC Volume", WM8960_CLASSD3, 0, 5, 0), + +SOC_SINGLE("PCM Playback -6dB Switch", WM8960_DACCTL1, 7, 1, 0), +SOC_ENUM("ADC Polarity", wm8960_enum[0]), +SOC_SINGLE("ADC High Pass Filter Switch", WM8960_DACCTL1, 0, 1, 0), + +SOC_ENUM("DAC Polarity", wm8960_enum[1]), +SOC_SINGLE_BOOL_EXT("DAC Deemphasis Switch", 0, + wm8960_get_deemph, wm8960_put_deemph), + +SOC_ENUM("3D Filter Upper Cut-Off", wm8960_enum[2]), +SOC_ENUM("3D Filter Lower Cut-Off", wm8960_enum[3]), +SOC_SINGLE("3D Volume", WM8960_3D, 1, 15, 0), +SOC_SINGLE("3D Switch", WM8960_3D, 0, 1, 0), + +SOC_ENUM("ALC Function", wm8960_enum[4]), +SOC_SINGLE("ALC Max Gain", WM8960_ALC1, 4, 7, 0), +SOC_SINGLE("ALC Target", WM8960_ALC1, 0, 15, 1), +SOC_SINGLE("ALC Min Gain", WM8960_ALC2, 4, 7, 0), +SOC_SINGLE("ALC Hold Time", WM8960_ALC2, 0, 15, 0), +SOC_ENUM("ALC Mode", wm8960_enum[5]), +SOC_SINGLE("ALC Decay", WM8960_ALC3, 4, 15, 0), +SOC_SINGLE("ALC Attack", WM8960_ALC3, 0, 15, 0), + +SOC_SINGLE("Noise Gate Threshold", WM8960_NOISEG, 3, 31, 0), +SOC_SINGLE("Noise Gate Switch", WM8960_NOISEG, 0, 1, 0), + +SOC_DOUBLE_R_TLV("ADC PCM Capture Volume", WM8960_LADC, WM8960_RADC, + 0, 255, 0, adc_tlv), + +SOC_SINGLE_TLV("Left Output Mixer Boost Bypass Volume", + WM8960_BYPASS1, 4, 7, 1, bypass_tlv), +SOC_SINGLE_TLV("Left Output Mixer LINPUT3 Volume", + WM8960_LOUTMIX, 4, 7, 1, bypass_tlv), +SOC_SINGLE_TLV("Right Output Mixer Boost Bypass Volume", + WM8960_BYPASS2, 4, 7, 1, bypass_tlv), +SOC_SINGLE_TLV("Right Output Mixer RINPUT3 Volume", + WM8960_ROUTMIX, 4, 7, 1, bypass_tlv), + +SOC_ENUM("ADC Data Output Select", wm8960_enum[6]), +SOC_ENUM("DAC Mono Mix", wm8960_enum[7]), +}; + +static const struct snd_kcontrol_new wm8960_lin_boost[] = { +SOC_DAPM_SINGLE("LINPUT2 Switch", WM8960_LINPATH, 6, 1, 0), +SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LINPATH, 7, 1, 0), +SOC_DAPM_SINGLE("LINPUT1 Switch", WM8960_LINPATH, 8, 1, 0), +}; + +static const struct snd_kcontrol_new wm8960_lin[] = { +SOC_DAPM_SINGLE("Boost Switch", WM8960_LINPATH, 3, 1, 0), +}; + +static const struct snd_kcontrol_new wm8960_rin_boost[] = { +SOC_DAPM_SINGLE("RINPUT2 Switch", WM8960_RINPATH, 6, 1, 0), +SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_RINPATH, 7, 1, 0), +SOC_DAPM_SINGLE("RINPUT1 Switch", WM8960_RINPATH, 8, 1, 0), +}; + +static const struct snd_kcontrol_new wm8960_rin[] = { +SOC_DAPM_SINGLE("Boost Switch", WM8960_RINPATH, 3, 1, 0), +}; + +static const struct snd_kcontrol_new wm8960_loutput_mixer[] = { +SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_LOUTMIX, 8, 1, 0), +SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LOUTMIX, 7, 1, 0), +SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS1, 7, 1, 0), +}; + +static const struct snd_kcontrol_new wm8960_routput_mixer[] = { +SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_ROUTMIX, 8, 1, 0), +SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_ROUTMIX, 7, 1, 0), +SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS2, 7, 1, 0), +}; + +static const struct snd_kcontrol_new wm8960_mono_out[] = { +SOC_DAPM_SINGLE("Left Switch", WM8960_MONOMIX1, 7, 1, 0), +SOC_DAPM_SINGLE("Right Switch", WM8960_MONOMIX2, 7, 1, 0), +}; + +static const struct snd_soc_dapm_widget wm8960_dapm_widgets[] = { +SND_SOC_DAPM_INPUT("LINPUT1"), +SND_SOC_DAPM_INPUT("RINPUT1"), +SND_SOC_DAPM_INPUT("LINPUT2"), +SND_SOC_DAPM_INPUT("RINPUT2"), +SND_SOC_DAPM_INPUT("LINPUT3"), +SND_SOC_DAPM_INPUT("RINPUT3"), + +SND_SOC_DAPM_SUPPLY("MICB", WM8960_POWER1, 1, 0, NULL, 0), + +SND_SOC_DAPM_MIXER("Left Boost Mixer", WM8960_POWER1, 5, 0, + wm8960_lin_boost, ARRAY_SIZE(wm8960_lin_boost)), +SND_SOC_DAPM_MIXER("Right Boost Mixer", WM8960_POWER1, 4, 0, + wm8960_rin_boost, ARRAY_SIZE(wm8960_rin_boost)), + +SND_SOC_DAPM_MIXER("Left Input Mixer", WM8960_POWER3, 5, 0, + wm8960_lin, ARRAY_SIZE(wm8960_lin)), +SND_SOC_DAPM_MIXER("Right Input Mixer", WM8960_POWER3, 4, 0, + wm8960_rin, ARRAY_SIZE(wm8960_rin)), + +SND_SOC_DAPM_ADC("Left ADC", "Capture", WM8960_POWER1, 3, 0), +SND_SOC_DAPM_ADC("Right ADC", "Capture", WM8960_POWER1, 2, 0), + +SND_SOC_DAPM_DAC("Left DAC", "Playback", WM8960_POWER2, 8, 0), +SND_SOC_DAPM_DAC("Right DAC", "Playback", WM8960_POWER2, 7, 0), + +SND_SOC_DAPM_MIXER("Left Output Mixer", WM8960_POWER3, 3, 0, + &wm8960_loutput_mixer[0], + ARRAY_SIZE(wm8960_loutput_mixer)), +SND_SOC_DAPM_MIXER("Right Output Mixer", WM8960_POWER3, 2, 0, + &wm8960_routput_mixer[0], + ARRAY_SIZE(wm8960_routput_mixer)), + +SND_SOC_DAPM_PGA("LOUT1 PGA", WM8960_POWER2, 6, 0, NULL, 0), +SND_SOC_DAPM_PGA("ROUT1 PGA", WM8960_POWER2, 5, 0, NULL, 0), + +SND_SOC_DAPM_PGA("Left Speaker PGA", WM8960_POWER2, 4, 0, NULL, 0), +SND_SOC_DAPM_PGA("Right Speaker PGA", WM8960_POWER2, 3, 0, NULL, 0), + +SND_SOC_DAPM_PGA("Right Speaker Output", WM8960_CLASSD1, 7, 0, NULL, 0), +SND_SOC_DAPM_PGA("Left Speaker Output", WM8960_CLASSD1, 6, 0, NULL, 0), + +SND_SOC_DAPM_OUTPUT("SPK_LP"), +SND_SOC_DAPM_OUTPUT("SPK_LN"), +SND_SOC_DAPM_OUTPUT("HP_L"), +SND_SOC_DAPM_OUTPUT("HP_R"), +SND_SOC_DAPM_OUTPUT("SPK_RP"), +SND_SOC_DAPM_OUTPUT("SPK_RN"), +SND_SOC_DAPM_OUTPUT("OUT3"), +}; + +static const struct snd_soc_dapm_widget wm8960_dapm_widgets_out3[] = { +SND_SOC_DAPM_MIXER("Mono Output Mixer", WM8960_POWER2, 1, 0, + &wm8960_mono_out[0], + ARRAY_SIZE(wm8960_mono_out)), +}; + +/* Represent OUT3 as a PGA so that it gets turned on with LOUT1/ROUT1 */ +static const struct snd_soc_dapm_widget wm8960_dapm_widgets_capless[] = { +SND_SOC_DAPM_PGA("OUT3 VMID", WM8960_POWER2, 1, 0, NULL, 0), +}; + +static const struct snd_soc_dapm_route audio_paths[] = { + { "Left Boost Mixer", NULL , "MICB"}, + { "Left Boost Mixer", "LINPUT1 Switch", "LINPUT1" }, + { "Left Boost Mixer", "LINPUT2 Switch", "LINPUT2" }, + { "Left Boost Mixer", "LINPUT3 Switch", "LINPUT3" }, + + { "Left Input Mixer", "Boost Switch", "Left Boost Mixer" }, + { "Left Input Mixer", "Boost Switch", "LINPUT1" }, /* Really Boost Switch */ + { "Left Input Mixer", NULL, "LINPUT2" }, + { "Left Input Mixer", NULL, "LINPUT3" }, + + { "Right Boost Mixer", NULL , "MICB"}, + { "Right Boost Mixer", "RINPUT1 Switch", "RINPUT1" }, + { "Right Boost Mixer", "RINPUT2 Switch", "RINPUT2" }, + { "Right Boost Mixer", "RINPUT3 Switch", "RINPUT3" }, + + { "Right Input Mixer", "Boost Switch", "Right Boost Mixer" }, + { "Right Input Mixer", "Boost Switch", "RINPUT1" }, /* Really Boost Switch */ + { "Right Input Mixer", NULL, "RINPUT2" }, + { "Right Input Mixer", NULL, "RINPUT3" }, + + { "Left ADC", NULL, "Left Input Mixer" }, + { "Right ADC", NULL, "Right Input Mixer" }, + + { "Left Output Mixer", "LINPUT3 Switch", "LINPUT3" }, + { "Left Output Mixer", "Boost Bypass Switch", "Left Boost Mixer" }, + { "Left Output Mixer", "PCM Playback Switch", "Left DAC" }, + + { "Right Output Mixer", "RINPUT3 Switch", "RINPUT3" }, + { "Right Output Mixer", "Boost Bypass Switch", "Right Boost Mixer" }, + { "Right Output Mixer", "PCM Playback Switch", "Right DAC" }, + + { "LOUT1 PGA", NULL, "Left Output Mixer" }, + { "ROUT1 PGA", NULL, "Right Output Mixer" }, + + { "HP_L", NULL, "LOUT1 PGA" }, + { "HP_R", NULL, "ROUT1 PGA" }, + + { "Left Speaker PGA", NULL, "Left Output Mixer" }, + { "Right Speaker PGA", NULL, "Right Output Mixer" }, + + { "Left Speaker Output", NULL, "Left Speaker PGA" }, + { "Right Speaker Output", NULL, "Right Speaker PGA" }, + + { "SPK_LN", NULL, "Left Speaker Output" }, + { "SPK_LP", NULL, "Left Speaker Output" }, + { "SPK_RN", NULL, "Right Speaker Output" }, + { "SPK_RP", NULL, "Right Speaker Output" }, +}; + +static const struct snd_soc_dapm_route audio_paths_out3[] = { + { "Mono Output Mixer", "Left Switch", "Left Output Mixer" }, + { "Mono Output Mixer", "Right Switch", "Right Output Mixer" }, + + { "OUT3", NULL, "Mono Output Mixer", } +}; + +static const struct snd_soc_dapm_route audio_paths_capless[] = { + { "HP_L", NULL, "OUT3 VMID" }, + { "HP_R", NULL, "OUT3 VMID" }, + + { "OUT3 VMID", NULL, "Left Output Mixer" }, + { "OUT3 VMID", NULL, "Right Output Mixer" }, +}; + +static int wm8960_add_widgets(struct snd_soc_codec *codec) +{ + struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); + struct wm8960_data *pdata = &wm8960->pdata; + struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec); + struct snd_soc_dapm_widget *w; + + snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets, + ARRAY_SIZE(wm8960_dapm_widgets)); + + snd_soc_dapm_add_routes(dapm, audio_paths, ARRAY_SIZE(audio_paths)); + + /* In capless mode OUT3 is used to provide VMID for the + * headphone outputs, otherwise it is used as a mono mixer. + */ + if (pdata && pdata->capless) { + snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets_capless, + ARRAY_SIZE(wm8960_dapm_widgets_capless)); + + snd_soc_dapm_add_routes(dapm, audio_paths_capless, + ARRAY_SIZE(audio_paths_capless)); + } else { + snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets_out3, + ARRAY_SIZE(wm8960_dapm_widgets_out3)); + + snd_soc_dapm_add_routes(dapm, audio_paths_out3, + ARRAY_SIZE(audio_paths_out3)); + } + + /* We need to power up the headphone output stage out of + * sequence for capless mode. To save scanning the widget + * list each time to find the desired power state do so now + * and save the result. + */ + list_for_each_entry(w, &codec->component.card->widgets, list) { + if (w->dapm != dapm) + continue; + if (strcmp(w->name, "LOUT1 PGA") == 0) + wm8960->lout1 = w; + if (strcmp(w->name, "ROUT1 PGA") == 0) + wm8960->rout1 = w; + if (strcmp(w->name, "OUT3 VMID") == 0) + wm8960->out3 = w; + } + + return 0; +} + +static int wm8960_set_dai_fmt(struct snd_soc_dai *codec_dai, + unsigned int fmt) +{ + struct snd_soc_codec *codec = codec_dai->codec; + u16 iface = 0; + + /* set master/slave audio interface */ + switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { + case SND_SOC_DAIFMT_CBM_CFM: + iface |= 0x0040; + break; + case SND_SOC_DAIFMT_CBS_CFS: + break; + default: + return -EINVAL; + } + + /* interface format */ + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_I2S: + iface |= 0x0002; + break; + case SND_SOC_DAIFMT_RIGHT_J: + break; + case SND_SOC_DAIFMT_LEFT_J: + iface |= 0x0001; + break; + case SND_SOC_DAIFMT_DSP_A: + iface |= 0x0003; + break; + case SND_SOC_DAIFMT_DSP_B: + iface |= 0x0013; + break; + default: + return -EINVAL; + } + + /* clock inversion */ + switch (fmt & SND_SOC_DAIFMT_INV_MASK) { + case SND_SOC_DAIFMT_NB_NF: + break; + case SND_SOC_DAIFMT_IB_IF: + iface |= 0x0090; + break; + case SND_SOC_DAIFMT_IB_NF: + iface |= 0x0080; + break; + case SND_SOC_DAIFMT_NB_IF: + iface |= 0x0010; + break; + default: + return -EINVAL; + } + + /* set iface */ + snd_soc_write(codec, WM8960_IFACE1, iface); + return 0; +} + +static struct { + int rate; + unsigned int val; +} alc_rates[] = { + { 48000, 0 }, + { 44100, 0 }, + { 32000, 1 }, + { 22050, 2 }, + { 24000, 2 }, + { 16000, 3 }, + { 11025, 4 }, + { 12000, 4 }, + { 8000, 5 }, +}; + +/* -1 for reserved value */ +static const int sysclk_divs[] = { 1, -1, 2, -1 }; + +/* Multiply 256 for internal 256 div */ +static const int dac_divs[] = { 256, 384, 512, 768, 1024, 1408, 1536 }; + +/* Multiply 10 to eliminate decimials */ +static const int bclk_divs[] = { + 10, 15, 20, 30, 40, 55, 60, 80, 110, + 120, 160, 220, 240, 320, 320, 320 +}; + +static int wm8960_configure_clocking(struct snd_soc_codec *codec) +{ + struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); + int sysclk, bclk, lrclk, freq_out, freq_in; + u16 iface1 = snd_soc_read(codec, WM8960_IFACE1); + int i, j, k; + + if (!(iface1 & (1<<6))) { + dev_dbg(codec->dev, + "Codec is slave mode, no need to configure clock\n"); + return 0; + } + + if (wm8960->clk_id != WM8960_SYSCLK_MCLK && !wm8960->freq_in) { + dev_err(codec->dev, "No MCLK configured\n"); + return -EINVAL; + } + + freq_in = wm8960->freq_in; + bclk = wm8960->bclk; + lrclk = wm8960->lrclk; + /* + * If it's sysclk auto mode, check if the MCLK can provide sysclk or + * not. If MCLK can provide sysclk, using MCLK to provide sysclk + * directly. Otherwise, auto select a available pll out frequency + * and set PLL. + */ + if (wm8960->clk_id == WM8960_SYSCLK_AUTO) { + /* disable the PLL and using MCLK to provide sysclk */ + wm8960_set_pll(codec, 0, 0); + freq_out = freq_in; + } else if (wm8960->sysclk) { + freq_out = wm8960->sysclk; + } else { + dev_err(codec->dev, "No SYSCLK configured\n"); + return -EINVAL; + } + + if (wm8960->clk_id != WM8960_SYSCLK_PLL) { + /* check if the sysclk frequency is available. */ + for (i = 0; i < ARRAY_SIZE(sysclk_divs); ++i) { + if (sysclk_divs[i] == -1) + continue; + sysclk = freq_out / sysclk_divs[i]; + for (j = 0; j < ARRAY_SIZE(dac_divs); ++j) { + if (sysclk != dac_divs[j] * lrclk) + continue; + for (k = 0; k < ARRAY_SIZE(bclk_divs); ++k) + if (sysclk == bclk * bclk_divs[k] / 10) + break; + if (k != ARRAY_SIZE(bclk_divs)) + break; + } + if (j != ARRAY_SIZE(dac_divs)) + break; + } + + if (i != ARRAY_SIZE(sysclk_divs)) { + goto configure_clock; + } else if (wm8960->clk_id != WM8960_SYSCLK_AUTO) { + dev_err(codec->dev, "failed to configure clock\n"); + return -EINVAL; + } + } + /* get a available pll out frequency and set pll */ + for (i = 0; i < ARRAY_SIZE(sysclk_divs); ++i) { + if (sysclk_divs[i] == -1) + continue; + for (j = 0; j < ARRAY_SIZE(dac_divs); ++j) { + sysclk = lrclk * dac_divs[j]; + freq_out = sysclk * sysclk_divs[i]; + + for (k = 0; k < ARRAY_SIZE(bclk_divs); ++k) { + if (sysclk == bclk * bclk_divs[k] / 10 && + is_pll_freq_available(freq_in, freq_out)) { + wm8960_set_pll(codec, + freq_in, freq_out); + break; + } else { + continue; + } + } + if (k != ARRAY_SIZE(bclk_divs)) + break; + } + if (j != ARRAY_SIZE(dac_divs)) + break; + } + + if (i == ARRAY_SIZE(sysclk_divs)) { + dev_err(codec->dev, "failed to configure clock\n"); + return -EINVAL; + } + +configure_clock: + /* configure sysclk clock */ + snd_soc_update_bits(codec, WM8960_CLOCK1, 3 << 1, i << 1); + + /* configure frame clock */ + snd_soc_update_bits(codec, WM8960_CLOCK1, 0x7 << 3, j << 3); + snd_soc_update_bits(codec, WM8960_CLOCK1, 0x7 << 6, j << 6); + + /* configure bit clock */ + snd_soc_update_bits(codec, WM8960_CLOCK2, 0xf, k); + + return 0; +} + +static int wm8960_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct snd_soc_codec *codec = dai->codec; + struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); + u16 iface = snd_soc_read(codec, WM8960_IFACE1) & 0xfff3; + bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; + int i; + + wm8960->bclk = snd_soc_params_to_bclk(params); + if (params_channels(params) == 1) + wm8960->bclk *= 2; + + /* bit size */ + switch (params_width(params)) { + case 16: + break; + case 20: + iface |= 0x0004; + break; + case 24: + iface |= 0x0008; + break; + case 32: + /* right justify mode does not support 32 word length */ + if ((iface & 0x3) != 0) { + iface |= 0x000c; + break; + } + default: + dev_err(codec->dev, "unsupported width %d\n", + params_width(params)); + return -EINVAL; + } + + wm8960->lrclk = params_rate(params); + /* Update filters for the new rate */ + if (tx) { + wm8960_set_deemph(codec); + } else { + for (i = 0; i < ARRAY_SIZE(alc_rates); i++) + if (alc_rates[i].rate == params_rate(params)) + snd_soc_update_bits(codec, + WM8960_ADDCTL3, 0x7, + alc_rates[i].val); + } + + /* set iface */ + snd_soc_write(codec, WM8960_IFACE1, iface); + + wm8960->is_stream_in_use[tx] = true; + + if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_ON && + !wm8960->is_stream_in_use[!tx]) + return wm8960_configure_clocking(codec); + + return 0; +} + +static int wm8960_hw_free(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct snd_soc_codec *codec = dai->codec; + struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); + bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; + + wm8960->is_stream_in_use[tx] = false; + + return 0; +} + +static int wm8960_mute(struct snd_soc_dai *dai, int mute) +{ + struct snd_soc_codec *codec = dai->codec; + + if (mute) + snd_soc_update_bits(codec, WM8960_DACCTL1, 0x8, 0x8); + else + snd_soc_update_bits(codec, WM8960_DACCTL1, 0x8, 0); + return 0; +} + +static int wm8960_set_bias_level_out3(struct snd_soc_codec *codec, + enum snd_soc_bias_level level) +{ + struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); + u16 pm2 = snd_soc_read(codec, WM8960_POWER2); + int ret; + + switch (level) { + case SND_SOC_BIAS_ON: + break; + + case SND_SOC_BIAS_PREPARE: + switch (snd_soc_codec_get_bias_level(codec)) { + case SND_SOC_BIAS_STANDBY: + if (!IS_ERR(wm8960->mclk)) { + ret = clk_prepare_enable(wm8960->mclk); + if (ret) { + dev_err(codec->dev, + "Failed to enable MCLK: %d\n", + ret); + return ret; + } + } + + ret = wm8960_configure_clocking(codec); + if (ret) + return ret; + + /* Set VMID to 2x50k */ + snd_soc_update_bits(codec, WM8960_POWER1, 0x180, 0x80); + break; + + case SND_SOC_BIAS_ON: + /* + * If it's sysclk auto mode, and the pll is enabled, + * disable the pll + */ + if (wm8960->clk_id == WM8960_SYSCLK_AUTO && (pm2 & 0x1)) + wm8960_set_pll(codec, 0, 0); + + if (!IS_ERR(wm8960->mclk)) + clk_disable_unprepare(wm8960->mclk); + break; + + default: + break; + } + + break; + + case SND_SOC_BIAS_STANDBY: + if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) { + regcache_sync(wm8960->regmap); + + /* Enable anti-pop features */ + snd_soc_write(codec, WM8960_APOP1, + WM8960_POBCTRL | WM8960_SOFT_ST | + WM8960_BUFDCOPEN | WM8960_BUFIOEN); + + /* Enable & ramp VMID at 2x50k */ + snd_soc_update_bits(codec, WM8960_POWER1, 0x80, 0x80); + msleep(100); + + /* Enable VREF */ + snd_soc_update_bits(codec, WM8960_POWER1, WM8960_VREF, + WM8960_VREF); + + /* Disable anti-pop features */ + snd_soc_write(codec, WM8960_APOP1, WM8960_BUFIOEN); + } + + /* Set VMID to 2x250k */ + snd_soc_update_bits(codec, WM8960_POWER1, 0x180, 0x100); + break; + + case SND_SOC_BIAS_OFF: + /* Enable anti-pop features */ + snd_soc_write(codec, WM8960_APOP1, + WM8960_POBCTRL | WM8960_SOFT_ST | + WM8960_BUFDCOPEN | WM8960_BUFIOEN); + + /* Disable VMID and VREF, let them discharge */ + snd_soc_write(codec, WM8960_POWER1, 0); + msleep(600); + break; + } + + return 0; +} + +static int wm8960_set_bias_level_capless(struct snd_soc_codec *codec, + enum snd_soc_bias_level level) +{ + struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); + u16 pm2 = snd_soc_read(codec, WM8960_POWER2); + int reg, ret; + + switch (level) { + case SND_SOC_BIAS_ON: + break; + + case SND_SOC_BIAS_PREPARE: + switch (snd_soc_codec_get_bias_level(codec)) { + case SND_SOC_BIAS_STANDBY: + /* Enable anti pop mode */ + snd_soc_update_bits(codec, WM8960_APOP1, + WM8960_POBCTRL | WM8960_SOFT_ST | + WM8960_BUFDCOPEN, + WM8960_POBCTRL | WM8960_SOFT_ST | + WM8960_BUFDCOPEN); + + /* Enable LOUT1, ROUT1 and OUT3 if they're enabled */ + reg = 0; + if (wm8960->lout1 && wm8960->lout1->power) + reg |= WM8960_PWR2_LOUT1; + if (wm8960->rout1 && wm8960->rout1->power) + reg |= WM8960_PWR2_ROUT1; + if (wm8960->out3 && wm8960->out3->power) + reg |= WM8960_PWR2_OUT3; + snd_soc_update_bits(codec, WM8960_POWER2, + WM8960_PWR2_LOUT1 | + WM8960_PWR2_ROUT1 | + WM8960_PWR2_OUT3, reg); + + /* Enable VMID at 2*50k */ + snd_soc_update_bits(codec, WM8960_POWER1, + WM8960_VMID_MASK, 0x80); + + /* Ramp */ + msleep(100); + + /* Enable VREF */ + snd_soc_update_bits(codec, WM8960_POWER1, + WM8960_VREF, WM8960_VREF); + + msleep(100); + + if (!IS_ERR(wm8960->mclk)) { + ret = clk_prepare_enable(wm8960->mclk); + if (ret) { + dev_err(codec->dev, + "Failed to enable MCLK: %d\n", + ret); + return ret; + } + } + + ret = wm8960_configure_clocking(codec); + if (ret) + return ret; + + break; + + case SND_SOC_BIAS_ON: + /* + * If it's sysclk auto mode, and the pll is enabled, + * disable the pll + */ + if (wm8960->clk_id == WM8960_SYSCLK_AUTO && (pm2 & 0x1)) + wm8960_set_pll(codec, 0, 0); + + if (!IS_ERR(wm8960->mclk)) + clk_disable_unprepare(wm8960->mclk); + + /* Enable anti-pop mode */ + snd_soc_update_bits(codec, WM8960_APOP1, + WM8960_POBCTRL | WM8960_SOFT_ST | + WM8960_BUFDCOPEN, + WM8960_POBCTRL | WM8960_SOFT_ST | + WM8960_BUFDCOPEN); + + /* Disable VMID and VREF */ + snd_soc_update_bits(codec, WM8960_POWER1, + WM8960_VREF | WM8960_VMID_MASK, 0); + break; + + case SND_SOC_BIAS_OFF: + regcache_sync(wm8960->regmap); + break; + default: + break; + } + break; + + case SND_SOC_BIAS_STANDBY: + switch (snd_soc_codec_get_bias_level(codec)) { + case SND_SOC_BIAS_PREPARE: + /* Disable HP discharge */ + snd_soc_update_bits(codec, WM8960_APOP2, + WM8960_DISOP | WM8960_DRES_MASK, + 0); + + /* Disable anti-pop features */ + snd_soc_update_bits(codec, WM8960_APOP1, + WM8960_POBCTRL | WM8960_SOFT_ST | + WM8960_BUFDCOPEN, + WM8960_POBCTRL | WM8960_SOFT_ST | + WM8960_BUFDCOPEN); + break; + + default: + break; + } + break; + + case SND_SOC_BIAS_OFF: + break; + } + + return 0; +} + +/* PLL divisors */ +struct _pll_div { + u32 pre_div:1; + u32 n:4; + u32 k:24; +}; + +static bool is_pll_freq_available(unsigned int source, unsigned int target) +{ + unsigned int Ndiv; + + if (source == 0 || target == 0) + return false; + + /* Scale up target to PLL operating frequency */ + target *= 4; + Ndiv = target / source; + + if (Ndiv < 6) { + source >>= 1; + Ndiv = target / source; + } + + if ((Ndiv < 6) || (Ndiv > 12)) + return false; + + return true; +} + +/* The size in bits of the pll divide multiplied by 10 + * to allow rounding later */ +#define FIXED_PLL_SIZE ((1 << 24) * 10) + +static int pll_factors(unsigned int source, unsigned int target, + struct _pll_div *pll_div) +{ + unsigned long long Kpart; + unsigned int K, Ndiv, Nmod; + + pr_debug("WM8960 PLL: setting %dHz->%dHz\n", source, target); + + /* Scale up target to PLL operating frequency */ + target *= 4; + + Ndiv = target / source; + if (Ndiv < 6) { + source >>= 1; + pll_div->pre_div = 1; + Ndiv = target / source; + } else + pll_div->pre_div = 0; + + if ((Ndiv < 6) || (Ndiv > 12)) { + pr_err("WM8960 PLL: Unsupported N=%d\n", Ndiv); + return -EINVAL; + } + + pll_div->n = Ndiv; + Nmod = target % source; + Kpart = FIXED_PLL_SIZE * (long long)Nmod; + + do_div(Kpart, source); + + K = Kpart & 0xFFFFFFFF; + + /* Check if we need to round */ + if ((K % 10) >= 5) + K += 5; + + /* Move down to proper range now rounding is done */ + K /= 10; + + pll_div->k = K; + + pr_debug("WM8960 PLL: N=%x K=%x pre_div=%d\n", + pll_div->n, pll_div->k, pll_div->pre_div); + + return 0; +} + +static int wm8960_set_pll(struct snd_soc_codec *codec, + unsigned int freq_in, unsigned int freq_out) +{ + u16 reg; + static struct _pll_div pll_div; + int ret; + + if (freq_in && freq_out) { + ret = pll_factors(freq_in, freq_out, &pll_div); + if (ret != 0) + return ret; + } + + /* Disable the PLL: even if we are changing the frequency the + * PLL needs to be disabled while we do so. */ + snd_soc_update_bits(codec, WM8960_CLOCK1, 0x1, 0); + snd_soc_update_bits(codec, WM8960_POWER2, 0x1, 0); + + if (!freq_in || !freq_out) + return 0; + + reg = snd_soc_read(codec, WM8960_PLL1) & ~0x3f; + reg |= pll_div.pre_div << 4; + reg |= pll_div.n; + + if (pll_div.k) { + reg |= 0x20; + + snd_soc_write(codec, WM8960_PLL2, (pll_div.k >> 16) & 0xff); + snd_soc_write(codec, WM8960_PLL3, (pll_div.k >> 8) & 0xff); + snd_soc_write(codec, WM8960_PLL4, pll_div.k & 0xff); + } + snd_soc_write(codec, WM8960_PLL1, reg); + + /* Turn it on */ + snd_soc_update_bits(codec, WM8960_POWER2, 0x1, 0x1); + msleep(250); + snd_soc_update_bits(codec, WM8960_CLOCK1, 0x1, 0x1); + + return 0; +} + +static int wm8960_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id, + int source, unsigned int freq_in, unsigned int freq_out) +{ + struct snd_soc_codec *codec = codec_dai->codec; + struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); + + wm8960->freq_in = freq_in; + + if (pll_id == WM8960_SYSCLK_AUTO) + return 0; + + return wm8960_set_pll(codec, freq_in, freq_out); +} + +static int wm8960_set_dai_clkdiv(struct snd_soc_dai *codec_dai, + int div_id, int div) +{ + struct snd_soc_codec *codec = codec_dai->codec; + u16 reg; + + switch (div_id) { + case WM8960_SYSCLKDIV: + reg = snd_soc_read(codec, WM8960_CLOCK1) & 0x1f9; + snd_soc_write(codec, WM8960_CLOCK1, reg | div); + break; + case WM8960_DACDIV: + reg = snd_soc_read(codec, WM8960_CLOCK1) & 0x1c7; + snd_soc_write(codec, WM8960_CLOCK1, reg | div); + break; + case WM8960_OPCLKDIV: + reg = snd_soc_read(codec, WM8960_PLL1) & 0x03f; + snd_soc_write(codec, WM8960_PLL1, reg | div); + break; + case WM8960_DCLKDIV: + reg = snd_soc_read(codec, WM8960_CLOCK2) & 0x03f; + snd_soc_write(codec, WM8960_CLOCK2, reg | div); + break; + case WM8960_TOCLKSEL: + reg = snd_soc_read(codec, WM8960_ADDCTL1) & 0x1fd; + snd_soc_write(codec, WM8960_ADDCTL1, reg | div); + break; + default: + return -EINVAL; + } + + return 0; +} + +static int wm8960_set_bias_level(struct snd_soc_codec *codec, + enum snd_soc_bias_level level) +{ + struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); + + return wm8960->set_bias_level(codec, level); +} + +static int wm8960_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id, + unsigned int freq, int dir) +{ + struct snd_soc_codec *codec = dai->codec; + struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); + + switch (clk_id) { + case WM8960_SYSCLK_MCLK: + snd_soc_update_bits(codec, WM8960_CLOCK1, + 0x1, WM8960_SYSCLK_MCLK); + break; + case WM8960_SYSCLK_PLL: + snd_soc_update_bits(codec, WM8960_CLOCK1, + 0x1, WM8960_SYSCLK_PLL); + break; + case WM8960_SYSCLK_AUTO: + break; + default: + return -EINVAL; + } + + wm8960->sysclk = freq; + wm8960->clk_id = clk_id; + + return 0; +} + +#define WM8960_RATES SNDRV_PCM_RATE_8000_48000 + +#define WM8960_FORMATS \ + (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \ + SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE) + +static const struct snd_soc_dai_ops wm8960_dai_ops = { + .hw_params = wm8960_hw_params, + .hw_free = wm8960_hw_free, + .digital_mute = wm8960_mute, + .set_fmt = wm8960_set_dai_fmt, + .set_clkdiv = wm8960_set_dai_clkdiv, + .set_pll = wm8960_set_dai_pll, + .set_sysclk = wm8960_set_dai_sysclk, +}; + +static struct snd_soc_dai_driver wm8960_dai = { + .name = "wm8960-hifi", + .playback = { + .stream_name = "Playback", + .channels_min = 1, + .channels_max = 2, + .rates = WM8960_RATES, + .formats = WM8960_FORMATS,}, + .capture = { + .stream_name = "Capture", + .channels_min = 1, + .channels_max = 2, + .rates = WM8960_RATES, + .formats = WM8960_FORMATS,}, + .ops = &wm8960_dai_ops, + .symmetric_rates = 1, +}; + +static int wm8960_probe(struct snd_soc_codec *codec) +{ + struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); + struct wm8960_data *pdata = &wm8960->pdata; + + if (pdata->capless) + wm8960->set_bias_level = wm8960_set_bias_level_capless; + else + wm8960->set_bias_level = wm8960_set_bias_level_out3; + + snd_soc_add_codec_controls(codec, wm8960_snd_controls, + ARRAY_SIZE(wm8960_snd_controls)); + wm8960_add_widgets(codec); + + return 0; +} + +static const struct snd_soc_codec_driver soc_codec_dev_wm8960 = { + .probe = wm8960_probe, + .set_bias_level = wm8960_set_bias_level, + .suspend_bias_off = true, +}; + +static const struct regmap_config wm8960_regmap = { + .reg_bits = 7, + .val_bits = 9, + .max_register = WM8960_PLL4, + + .reg_defaults = wm8960_reg_defaults, + .num_reg_defaults = ARRAY_SIZE(wm8960_reg_defaults), + .cache_type = REGCACHE_RBTREE, + + .volatile_reg = wm8960_volatile, +}; + +static void wm8960_set_pdata_from_of(struct i2c_client *i2c, + struct wm8960_data *pdata) +{ + const struct device_node *np = i2c->dev.of_node; + + if (of_property_read_bool(np, "wlf,capless")) + pdata->capless = true; + + if (of_property_read_bool(np, "wlf,shared-lrclk")) + pdata->shared_lrclk = true; +} + +static int wm8960_i2c_probe(struct i2c_client *i2c, + const struct i2c_device_id *id) +{ + struct wm8960_data *pdata = dev_get_platdata(&i2c->dev); + struct wm8960_priv *wm8960; + int ret; + + wm8960 = devm_kzalloc(&i2c->dev, sizeof(struct wm8960_priv), + GFP_KERNEL); + if (wm8960 == NULL) + return -ENOMEM; + + wm8960->mclk = devm_clk_get(&i2c->dev, "mclk"); + if (IS_ERR(wm8960->mclk)) { + if (PTR_ERR(wm8960->mclk) == -EPROBE_DEFER) + return -EPROBE_DEFER; + } + + wm8960->regmap = devm_regmap_init_i2c(i2c, &wm8960_regmap); + if (IS_ERR(wm8960->regmap)) + return PTR_ERR(wm8960->regmap); + + if (pdata) + memcpy(&wm8960->pdata, pdata, sizeof(struct wm8960_data)); + else if (i2c->dev.of_node) + wm8960_set_pdata_from_of(i2c, &wm8960->pdata); + + ret = wm8960_reset(wm8960->regmap); + if (ret != 0) { + dev_err(&i2c->dev, "Failed to issue reset\n"); + return ret; + } + + if (wm8960->pdata.shared_lrclk) { + ret = regmap_update_bits(wm8960->regmap, WM8960_ADDCTL2, + 0x4, 0x4); + if (ret != 0) { + dev_err(&i2c->dev, "Failed to enable LRCM: %d\n", + ret); + return ret; + } + } + + /* Latch the update bits */ + regmap_update_bits(wm8960->regmap, WM8960_LINVOL, 0x100, 0x100); + regmap_update_bits(wm8960->regmap, WM8960_RINVOL, 0x100, 0x100); + regmap_update_bits(wm8960->regmap, WM8960_LADC, 0x100, 0x100); + regmap_update_bits(wm8960->regmap, WM8960_RADC, 0x100, 0x100); + regmap_update_bits(wm8960->regmap, WM8960_LDAC, 0x100, 0x100); + regmap_update_bits(wm8960->regmap, WM8960_RDAC, 0x100, 0x100); + regmap_update_bits(wm8960->regmap, WM8960_LOUT1, 0x100, 0x100); + regmap_update_bits(wm8960->regmap, WM8960_ROUT1, 0x100, 0x100); + regmap_update_bits(wm8960->regmap, WM8960_LOUT2, 0x100, 0x100); + regmap_update_bits(wm8960->regmap, WM8960_ROUT2, 0x100, 0x100); + + i2c_set_clientdata(i2c, wm8960); + + ret = snd_soc_register_codec(&i2c->dev, + &soc_codec_dev_wm8960, &wm8960_dai, 1); + + return ret; +} + +static int wm8960_i2c_remove(struct i2c_client *client) +{ + snd_soc_unregister_codec(&client->dev); + return 0; +} + +static const struct i2c_device_id wm8960_i2c_id[] = { + { "wm8960", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, wm8960_i2c_id); + +static const struct of_device_id wm8960_of_match[] = { + { .compatible = "wlf,wm8960", }, + { } +}; +MODULE_DEVICE_TABLE(of, wm8960_of_match); + +static struct i2c_driver wm8960_i2c_driver = { + .driver = { + .name = "wm8960", + .of_match_table = wm8960_of_match, + }, + .probe = wm8960_i2c_probe, + .remove = wm8960_i2c_remove, + .id_table = wm8960_i2c_id, +}; + +module_i2c_driver(wm8960_i2c_driver); + +MODULE_DESCRIPTION("ASoC WM8960 driver"); +MODULE_AUTHOR("Liam Girdwood"); +MODULE_LICENSE("GPL");