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Diffstat (limited to 'ANDROID_3.4.5/sound/soc/codecs/wm8993.c')
-rw-r--r--ANDROID_3.4.5/sound/soc/codecs/wm8993.c1866
1 files changed, 1866 insertions, 0 deletions
diff --git a/ANDROID_3.4.5/sound/soc/codecs/wm8993.c b/ANDROID_3.4.5/sound/soc/codecs/wm8993.c
new file mode 100644
index 00000000..d256a934
--- /dev/null
+++ b/ANDROID_3.4.5/sound/soc/codecs/wm8993.c
@@ -0,0 +1,1866 @@
+/*
+ * wm8993.c -- WM8993 ALSA SoC audio driver
+ *
+ * Copyright 2009, 2010 Wolfson Microelectronics plc
+ *
+ * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
+ *
+ * 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 <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/tlv.h>
+#include <sound/soc.h>
+#include <sound/initval.h>
+#include <sound/wm8993.h>
+
+#include "wm8993.h"
+#include "wm_hubs.h"
+
+#define WM8993_NUM_SUPPLIES 6
+static const char *wm8993_supply_names[WM8993_NUM_SUPPLIES] = {
+ "DCVDD",
+ "DBVDD",
+ "AVDD1",
+ "AVDD2",
+ "CPVDD",
+ "SPKVDD",
+};
+
+static struct reg_default wm8993_reg_defaults[] = {
+ { 1, 0x0000 }, /* R1 - Power Management (1) */
+ { 2, 0x6000 }, /* R2 - Power Management (2) */
+ { 3, 0x0000 }, /* R3 - Power Management (3) */
+ { 4, 0x4050 }, /* R4 - Audio Interface (1) */
+ { 5, 0x4000 }, /* R5 - Audio Interface (2) */
+ { 6, 0x01C8 }, /* R6 - Clocking 1 */
+ { 7, 0x0000 }, /* R7 - Clocking 2 */
+ { 8, 0x0000 }, /* R8 - Audio Interface (3) */
+ { 9, 0x0040 }, /* R9 - Audio Interface (4) */
+ { 10, 0x0004 }, /* R10 - DAC CTRL */
+ { 11, 0x00C0 }, /* R11 - Left DAC Digital Volume */
+ { 12, 0x00C0 }, /* R12 - Right DAC Digital Volume */
+ { 13, 0x0000 }, /* R13 - Digital Side Tone */
+ { 14, 0x0300 }, /* R14 - ADC CTRL */
+ { 15, 0x00C0 }, /* R15 - Left ADC Digital Volume */
+ { 16, 0x00C0 }, /* R16 - Right ADC Digital Volume */
+ { 18, 0x0000 }, /* R18 - GPIO CTRL 1 */
+ { 19, 0x0010 }, /* R19 - GPIO1 */
+ { 20, 0x0000 }, /* R20 - IRQ_DEBOUNCE */
+ { 21, 0x0000 }, /* R21 - Inputs Clamp */
+ { 22, 0x8000 }, /* R22 - GPIOCTRL 2 */
+ { 23, 0x0800 }, /* R23 - GPIO_POL */
+ { 24, 0x008B }, /* R24 - Left Line Input 1&2 Volume */
+ { 25, 0x008B }, /* R25 - Left Line Input 3&4 Volume */
+ { 26, 0x008B }, /* R26 - Right Line Input 1&2 Volume */
+ { 27, 0x008B }, /* R27 - Right Line Input 3&4 Volume */
+ { 28, 0x006D }, /* R28 - Left Output Volume */
+ { 29, 0x006D }, /* R29 - Right Output Volume */
+ { 30, 0x0066 }, /* R30 - Line Outputs Volume */
+ { 31, 0x0020 }, /* R31 - HPOUT2 Volume */
+ { 32, 0x0079 }, /* R32 - Left OPGA Volume */
+ { 33, 0x0079 }, /* R33 - Right OPGA Volume */
+ { 34, 0x0003 }, /* R34 - SPKMIXL Attenuation */
+ { 35, 0x0003 }, /* R35 - SPKMIXR Attenuation */
+ { 36, 0x0011 }, /* R36 - SPKOUT Mixers */
+ { 37, 0x0100 }, /* R37 - SPKOUT Boost */
+ { 38, 0x0079 }, /* R38 - Speaker Volume Left */
+ { 39, 0x0079 }, /* R39 - Speaker Volume Right */
+ { 40, 0x0000 }, /* R40 - Input Mixer2 */
+ { 41, 0x0000 }, /* R41 - Input Mixer3 */
+ { 42, 0x0000 }, /* R42 - Input Mixer4 */
+ { 43, 0x0000 }, /* R43 - Input Mixer5 */
+ { 44, 0x0000 }, /* R44 - Input Mixer6 */
+ { 45, 0x0000 }, /* R45 - Output Mixer1 */
+ { 46, 0x0000 }, /* R46 - Output Mixer2 */
+ { 47, 0x0000 }, /* R47 - Output Mixer3 */
+ { 48, 0x0000 }, /* R48 - Output Mixer4 */
+ { 49, 0x0000 }, /* R49 - Output Mixer5 */
+ { 50, 0x0000 }, /* R50 - Output Mixer6 */
+ { 51, 0x0000 }, /* R51 - HPOUT2 Mixer */
+ { 52, 0x0000 }, /* R52 - Line Mixer1 */
+ { 53, 0x0000 }, /* R53 - Line Mixer2 */
+ { 54, 0x0000 }, /* R54 - Speaker Mixer */
+ { 55, 0x0000 }, /* R55 - Additional Control */
+ { 56, 0x0000 }, /* R56 - AntiPOP1 */
+ { 57, 0x0000 }, /* R57 - AntiPOP2 */
+ { 58, 0x0000 }, /* R58 - MICBIAS */
+ { 60, 0x0000 }, /* R60 - FLL Control 1 */
+ { 61, 0x0000 }, /* R61 - FLL Control 2 */
+ { 62, 0x0000 }, /* R62 - FLL Control 3 */
+ { 63, 0x2EE0 }, /* R63 - FLL Control 4 */
+ { 64, 0x0002 }, /* R64 - FLL Control 5 */
+ { 65, 0x2287 }, /* R65 - Clocking 3 */
+ { 66, 0x025F }, /* R66 - Clocking 4 */
+ { 67, 0x0000 }, /* R67 - MW Slave Control */
+ { 69, 0x0002 }, /* R69 - Bus Control 1 */
+ { 70, 0x0000 }, /* R70 - Write Sequencer 0 */
+ { 71, 0x0000 }, /* R71 - Write Sequencer 1 */
+ { 72, 0x0000 }, /* R72 - Write Sequencer 2 */
+ { 73, 0x0000 }, /* R73 - Write Sequencer 3 */
+ { 74, 0x0000 }, /* R74 - Write Sequencer 4 */
+ { 75, 0x0000 }, /* R75 - Write Sequencer 5 */
+ { 76, 0x1F25 }, /* R76 - Charge Pump 1 */
+ { 81, 0x0000 }, /* R81 - Class W 0 */
+ { 85, 0x054A }, /* R85 - DC Servo 1 */
+ { 87, 0x0000 }, /* R87 - DC Servo 3 */
+ { 96, 0x0100 }, /* R96 - Analogue HP 0 */
+ { 98, 0x0000 }, /* R98 - EQ1 */
+ { 99, 0x000C }, /* R99 - EQ2 */
+ { 100, 0x000C }, /* R100 - EQ3 */
+ { 101, 0x000C }, /* R101 - EQ4 */
+ { 102, 0x000C }, /* R102 - EQ5 */
+ { 103, 0x000C }, /* R103 - EQ6 */
+ { 104, 0x0FCA }, /* R104 - EQ7 */
+ { 105, 0x0400 }, /* R105 - EQ8 */
+ { 106, 0x00D8 }, /* R106 - EQ9 */
+ { 107, 0x1EB5 }, /* R107 - EQ10 */
+ { 108, 0xF145 }, /* R108 - EQ11 */
+ { 109, 0x0B75 }, /* R109 - EQ12 */
+ { 110, 0x01C5 }, /* R110 - EQ13 */
+ { 111, 0x1C58 }, /* R111 - EQ14 */
+ { 112, 0xF373 }, /* R112 - EQ15 */
+ { 113, 0x0A54 }, /* R113 - EQ16 */
+ { 114, 0x0558 }, /* R114 - EQ17 */
+ { 115, 0x168E }, /* R115 - EQ18 */
+ { 116, 0xF829 }, /* R116 - EQ19 */
+ { 117, 0x07AD }, /* R117 - EQ20 */
+ { 118, 0x1103 }, /* R118 - EQ21 */
+ { 119, 0x0564 }, /* R119 - EQ22 */
+ { 120, 0x0559 }, /* R120 - EQ23 */
+ { 121, 0x4000 }, /* R121 - EQ24 */
+ { 122, 0x0000 }, /* R122 - Digital Pulls */
+ { 123, 0x0F08 }, /* R123 - DRC Control 1 */
+ { 124, 0x0000 }, /* R124 - DRC Control 2 */
+ { 125, 0x0080 }, /* R125 - DRC Control 3 */
+ { 126, 0x0000 }, /* R126 - DRC Control 4 */
+};
+
+static struct {
+ int ratio;
+ int clk_sys_rate;
+} clk_sys_rates[] = {
+ { 64, 0 },
+ { 128, 1 },
+ { 192, 2 },
+ { 256, 3 },
+ { 384, 4 },
+ { 512, 5 },
+ { 768, 6 },
+ { 1024, 7 },
+ { 1408, 8 },
+ { 1536, 9 },
+};
+
+static struct {
+ int rate;
+ int sample_rate;
+} sample_rates[] = {
+ { 8000, 0 },
+ { 11025, 1 },
+ { 12000, 1 },
+ { 16000, 2 },
+ { 22050, 3 },
+ { 24000, 3 },
+ { 32000, 4 },
+ { 44100, 5 },
+ { 48000, 5 },
+};
+
+static struct {
+ int div; /* *10 due to .5s */
+ int bclk_div;
+} bclk_divs[] = {
+ { 10, 0 },
+ { 15, 1 },
+ { 20, 2 },
+ { 30, 3 },
+ { 40, 4 },
+ { 55, 5 },
+ { 60, 6 },
+ { 80, 7 },
+ { 110, 8 },
+ { 120, 9 },
+ { 160, 10 },
+ { 220, 11 },
+ { 240, 12 },
+ { 320, 13 },
+ { 440, 14 },
+ { 480, 15 },
+};
+
+struct wm8993_priv {
+ struct wm_hubs_data hubs_data;
+ struct device *dev;
+ struct regmap *regmap;
+ struct regulator_bulk_data supplies[WM8993_NUM_SUPPLIES];
+ struct wm8993_platform_data pdata;
+ struct completion fll_lock;
+ int master;
+ int sysclk_source;
+ int tdm_slots;
+ int tdm_width;
+ unsigned int mclk_rate;
+ unsigned int sysclk_rate;
+ unsigned int fs;
+ unsigned int bclk;
+ int class_w_users;
+ unsigned int fll_fref;
+ unsigned int fll_fout;
+ int fll_src;
+};
+
+static bool wm8993_volatile(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case WM8993_SOFTWARE_RESET:
+ case WM8993_GPIO_CTRL_1:
+ case WM8993_DC_SERVO_0:
+ case WM8993_DC_SERVO_READBACK_0:
+ case WM8993_DC_SERVO_READBACK_1:
+ case WM8993_DC_SERVO_READBACK_2:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static bool wm8993_readable(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case WM8993_SOFTWARE_RESET:
+ case WM8993_POWER_MANAGEMENT_1:
+ case WM8993_POWER_MANAGEMENT_2:
+ case WM8993_POWER_MANAGEMENT_3:
+ case WM8993_AUDIO_INTERFACE_1:
+ case WM8993_AUDIO_INTERFACE_2:
+ case WM8993_CLOCKING_1:
+ case WM8993_CLOCKING_2:
+ case WM8993_AUDIO_INTERFACE_3:
+ case WM8993_AUDIO_INTERFACE_4:
+ case WM8993_DAC_CTRL:
+ case WM8993_LEFT_DAC_DIGITAL_VOLUME:
+ case WM8993_RIGHT_DAC_DIGITAL_VOLUME:
+ case WM8993_DIGITAL_SIDE_TONE:
+ case WM8993_ADC_CTRL:
+ case WM8993_LEFT_ADC_DIGITAL_VOLUME:
+ case WM8993_RIGHT_ADC_DIGITAL_VOLUME:
+ case WM8993_GPIO_CTRL_1:
+ case WM8993_GPIO1:
+ case WM8993_IRQ_DEBOUNCE:
+ case WM8993_GPIOCTRL_2:
+ case WM8993_GPIO_POL:
+ case WM8993_LEFT_LINE_INPUT_1_2_VOLUME:
+ case WM8993_LEFT_LINE_INPUT_3_4_VOLUME:
+ case WM8993_RIGHT_LINE_INPUT_1_2_VOLUME:
+ case WM8993_RIGHT_LINE_INPUT_3_4_VOLUME:
+ case WM8993_LEFT_OUTPUT_VOLUME:
+ case WM8993_RIGHT_OUTPUT_VOLUME:
+ case WM8993_LINE_OUTPUTS_VOLUME:
+ case WM8993_HPOUT2_VOLUME:
+ case WM8993_LEFT_OPGA_VOLUME:
+ case WM8993_RIGHT_OPGA_VOLUME:
+ case WM8993_SPKMIXL_ATTENUATION:
+ case WM8993_SPKMIXR_ATTENUATION:
+ case WM8993_SPKOUT_MIXERS:
+ case WM8993_SPKOUT_BOOST:
+ case WM8993_SPEAKER_VOLUME_LEFT:
+ case WM8993_SPEAKER_VOLUME_RIGHT:
+ case WM8993_INPUT_MIXER2:
+ case WM8993_INPUT_MIXER3:
+ case WM8993_INPUT_MIXER4:
+ case WM8993_INPUT_MIXER5:
+ case WM8993_INPUT_MIXER6:
+ case WM8993_OUTPUT_MIXER1:
+ case WM8993_OUTPUT_MIXER2:
+ case WM8993_OUTPUT_MIXER3:
+ case WM8993_OUTPUT_MIXER4:
+ case WM8993_OUTPUT_MIXER5:
+ case WM8993_OUTPUT_MIXER6:
+ case WM8993_HPOUT2_MIXER:
+ case WM8993_LINE_MIXER1:
+ case WM8993_LINE_MIXER2:
+ case WM8993_SPEAKER_MIXER:
+ case WM8993_ADDITIONAL_CONTROL:
+ case WM8993_ANTIPOP1:
+ case WM8993_ANTIPOP2:
+ case WM8993_MICBIAS:
+ case WM8993_FLL_CONTROL_1:
+ case WM8993_FLL_CONTROL_2:
+ case WM8993_FLL_CONTROL_3:
+ case WM8993_FLL_CONTROL_4:
+ case WM8993_FLL_CONTROL_5:
+ case WM8993_CLOCKING_3:
+ case WM8993_CLOCKING_4:
+ case WM8993_MW_SLAVE_CONTROL:
+ case WM8993_BUS_CONTROL_1:
+ case WM8993_WRITE_SEQUENCER_0:
+ case WM8993_WRITE_SEQUENCER_1:
+ case WM8993_WRITE_SEQUENCER_2:
+ case WM8993_WRITE_SEQUENCER_3:
+ case WM8993_WRITE_SEQUENCER_4:
+ case WM8993_WRITE_SEQUENCER_5:
+ case WM8993_CHARGE_PUMP_1:
+ case WM8993_CLASS_W_0:
+ case WM8993_DC_SERVO_0:
+ case WM8993_DC_SERVO_1:
+ case WM8993_DC_SERVO_3:
+ case WM8993_DC_SERVO_READBACK_0:
+ case WM8993_DC_SERVO_READBACK_1:
+ case WM8993_DC_SERVO_READBACK_2:
+ case WM8993_ANALOGUE_HP_0:
+ case WM8993_EQ1:
+ case WM8993_EQ2:
+ case WM8993_EQ3:
+ case WM8993_EQ4:
+ case WM8993_EQ5:
+ case WM8993_EQ6:
+ case WM8993_EQ7:
+ case WM8993_EQ8:
+ case WM8993_EQ9:
+ case WM8993_EQ10:
+ case WM8993_EQ11:
+ case WM8993_EQ12:
+ case WM8993_EQ13:
+ case WM8993_EQ14:
+ case WM8993_EQ15:
+ case WM8993_EQ16:
+ case WM8993_EQ17:
+ case WM8993_EQ18:
+ case WM8993_EQ19:
+ case WM8993_EQ20:
+ case WM8993_EQ21:
+ case WM8993_EQ22:
+ case WM8993_EQ23:
+ case WM8993_EQ24:
+ case WM8993_DIGITAL_PULLS:
+ case WM8993_DRC_CONTROL_1:
+ case WM8993_DRC_CONTROL_2:
+ case WM8993_DRC_CONTROL_3:
+ case WM8993_DRC_CONTROL_4:
+ return true;
+ default:
+ return false;
+ }
+}
+
+struct _fll_div {
+ u16 fll_fratio;
+ u16 fll_outdiv;
+ u16 fll_clk_ref_div;
+ u16 n;
+ u16 k;
+};
+
+/* The size in bits of the FLL divide multiplied by 10
+ * to allow rounding later */
+#define FIXED_FLL_SIZE ((1 << 16) * 10)
+
+static struct {
+ unsigned int min;
+ unsigned int max;
+ u16 fll_fratio;
+ int ratio;
+} fll_fratios[] = {
+ { 0, 64000, 4, 16 },
+ { 64000, 128000, 3, 8 },
+ { 128000, 256000, 2, 4 },
+ { 256000, 1000000, 1, 2 },
+ { 1000000, 13500000, 0, 1 },
+};
+
+static int fll_factors(struct _fll_div *fll_div, unsigned int Fref,
+ unsigned int Fout)
+{
+ u64 Kpart;
+ unsigned int K, Ndiv, Nmod, target;
+ unsigned int div;
+ int i;
+
+ /* Fref must be <=13.5MHz */
+ div = 1;
+ fll_div->fll_clk_ref_div = 0;
+ while ((Fref / div) > 13500000) {
+ div *= 2;
+ fll_div->fll_clk_ref_div++;
+
+ if (div > 8) {
+ pr_err("Can't scale %dMHz input down to <=13.5MHz\n",
+ Fref);
+ return -EINVAL;
+ }
+ }
+
+ pr_debug("Fref=%u Fout=%u\n", Fref, Fout);
+
+ /* Apply the division for our remaining calculations */
+ Fref /= div;
+
+ /* Fvco should be 90-100MHz; don't check the upper bound */
+ div = 0;
+ target = Fout * 2;
+ while (target < 90000000) {
+ div++;
+ target *= 2;
+ if (div > 7) {
+ pr_err("Unable to find FLL_OUTDIV for Fout=%uHz\n",
+ Fout);
+ return -EINVAL;
+ }
+ }
+ fll_div->fll_outdiv = div;
+
+ pr_debug("Fvco=%dHz\n", target);
+
+ /* Find an appropriate FLL_FRATIO and factor it out of the target */
+ for (i = 0; i < ARRAY_SIZE(fll_fratios); i++) {
+ if (fll_fratios[i].min <= Fref && Fref <= fll_fratios[i].max) {
+ fll_div->fll_fratio = fll_fratios[i].fll_fratio;
+ target /= fll_fratios[i].ratio;
+ break;
+ }
+ }
+ if (i == ARRAY_SIZE(fll_fratios)) {
+ pr_err("Unable to find FLL_FRATIO for Fref=%uHz\n", Fref);
+ return -EINVAL;
+ }
+
+ /* Now, calculate N.K */
+ Ndiv = target / Fref;
+
+ fll_div->n = Ndiv;
+ Nmod = target % Fref;
+ pr_debug("Nmod=%d\n", Nmod);
+
+ /* Calculate fractional part - scale up so we can round. */
+ Kpart = FIXED_FLL_SIZE * (long long)Nmod;
+
+ do_div(Kpart, Fref);
+
+ K = Kpart & 0xFFFFFFFF;
+
+ if ((K % 10) >= 5)
+ K += 5;
+
+ /* Move down to proper range now rounding is done */
+ fll_div->k = K / 10;
+
+ pr_debug("N=%x K=%x FLL_FRATIO=%x FLL_OUTDIV=%x FLL_CLK_REF_DIV=%x\n",
+ fll_div->n, fll_div->k,
+ fll_div->fll_fratio, fll_div->fll_outdiv,
+ fll_div->fll_clk_ref_div);
+
+ return 0;
+}
+
+static int _wm8993_set_fll(struct snd_soc_codec *codec, int fll_id, int source,
+ unsigned int Fref, unsigned int Fout)
+{
+ struct wm8993_priv *wm8993 = snd_soc_codec_get_drvdata(codec);
+ struct i2c_client *i2c = to_i2c_client(codec->dev);
+ u16 reg1, reg4, reg5;
+ struct _fll_div fll_div;
+ unsigned int timeout;
+ int ret;
+
+ /* Any change? */
+ if (Fref == wm8993->fll_fref && Fout == wm8993->fll_fout)
+ return 0;
+
+ /* Disable the FLL */
+ if (Fout == 0) {
+ dev_dbg(codec->dev, "FLL disabled\n");
+ wm8993->fll_fref = 0;
+ wm8993->fll_fout = 0;
+
+ reg1 = snd_soc_read(codec, WM8993_FLL_CONTROL_1);
+ reg1 &= ~WM8993_FLL_ENA;
+ snd_soc_write(codec, WM8993_FLL_CONTROL_1, reg1);
+
+ return 0;
+ }
+
+ ret = fll_factors(&fll_div, Fref, Fout);
+ if (ret != 0)
+ return ret;
+
+ reg5 = snd_soc_read(codec, WM8993_FLL_CONTROL_5);
+ reg5 &= ~WM8993_FLL_CLK_SRC_MASK;
+
+ switch (fll_id) {
+ case WM8993_FLL_MCLK:
+ break;
+
+ case WM8993_FLL_LRCLK:
+ reg5 |= 1;
+ break;
+
+ case WM8993_FLL_BCLK:
+ reg5 |= 2;
+ break;
+
+ default:
+ dev_err(codec->dev, "Unknown FLL ID %d\n", fll_id);
+ return -EINVAL;
+ }
+
+ /* Any FLL configuration change requires that the FLL be
+ * disabled first. */
+ reg1 = snd_soc_read(codec, WM8993_FLL_CONTROL_1);
+ reg1 &= ~WM8993_FLL_ENA;
+ snd_soc_write(codec, WM8993_FLL_CONTROL_1, reg1);
+
+ /* Apply the configuration */
+ if (fll_div.k)
+ reg1 |= WM8993_FLL_FRAC_MASK;
+ else
+ reg1 &= ~WM8993_FLL_FRAC_MASK;
+ snd_soc_write(codec, WM8993_FLL_CONTROL_1, reg1);
+
+ snd_soc_write(codec, WM8993_FLL_CONTROL_2,
+ (fll_div.fll_outdiv << WM8993_FLL_OUTDIV_SHIFT) |
+ (fll_div.fll_fratio << WM8993_FLL_FRATIO_SHIFT));
+ snd_soc_write(codec, WM8993_FLL_CONTROL_3, fll_div.k);
+
+ reg4 = snd_soc_read(codec, WM8993_FLL_CONTROL_4);
+ reg4 &= ~WM8993_FLL_N_MASK;
+ reg4 |= fll_div.n << WM8993_FLL_N_SHIFT;
+ snd_soc_write(codec, WM8993_FLL_CONTROL_4, reg4);
+
+ reg5 &= ~WM8993_FLL_CLK_REF_DIV_MASK;
+ reg5 |= fll_div.fll_clk_ref_div << WM8993_FLL_CLK_REF_DIV_SHIFT;
+ snd_soc_write(codec, WM8993_FLL_CONTROL_5, reg5);
+
+ /* If we've got an interrupt wired up make sure we get it */
+ if (i2c->irq)
+ timeout = msecs_to_jiffies(20);
+ else if (Fref < 1000000)
+ timeout = msecs_to_jiffies(3);
+ else
+ timeout = msecs_to_jiffies(1);
+
+ try_wait_for_completion(&wm8993->fll_lock);
+
+ /* Enable the FLL */
+ snd_soc_write(codec, WM8993_FLL_CONTROL_1, reg1 | WM8993_FLL_ENA);
+
+ timeout = wait_for_completion_timeout(&wm8993->fll_lock, timeout);
+ if (i2c->irq && !timeout)
+ dev_warn(codec->dev, "Timed out waiting for FLL\n");
+
+ dev_dbg(codec->dev, "FLL enabled at %dHz->%dHz\n", Fref, Fout);
+
+ wm8993->fll_fref = Fref;
+ wm8993->fll_fout = Fout;
+ wm8993->fll_src = source;
+
+ return 0;
+}
+
+static int wm8993_set_fll(struct snd_soc_dai *dai, int fll_id, int source,
+ unsigned int Fref, unsigned int Fout)
+{
+ return _wm8993_set_fll(dai->codec, fll_id, source, Fref, Fout);
+}
+
+static int configure_clock(struct snd_soc_codec *codec)
+{
+ struct wm8993_priv *wm8993 = snd_soc_codec_get_drvdata(codec);
+ unsigned int reg;
+
+ /* This should be done on init() for bypass paths */
+ switch (wm8993->sysclk_source) {
+ case WM8993_SYSCLK_MCLK:
+ dev_dbg(codec->dev, "Using %dHz MCLK\n", wm8993->mclk_rate);
+
+ reg = snd_soc_read(codec, WM8993_CLOCKING_2);
+ reg &= ~(WM8993_MCLK_DIV | WM8993_SYSCLK_SRC);
+ if (wm8993->mclk_rate > 13500000) {
+ reg |= WM8993_MCLK_DIV;
+ wm8993->sysclk_rate = wm8993->mclk_rate / 2;
+ } else {
+ reg &= ~WM8993_MCLK_DIV;
+ wm8993->sysclk_rate = wm8993->mclk_rate;
+ }
+ snd_soc_write(codec, WM8993_CLOCKING_2, reg);
+ break;
+
+ case WM8993_SYSCLK_FLL:
+ dev_dbg(codec->dev, "Using %dHz FLL clock\n",
+ wm8993->fll_fout);
+
+ reg = snd_soc_read(codec, WM8993_CLOCKING_2);
+ reg |= WM8993_SYSCLK_SRC;
+ if (wm8993->fll_fout > 13500000) {
+ reg |= WM8993_MCLK_DIV;
+ wm8993->sysclk_rate = wm8993->fll_fout / 2;
+ } else {
+ reg &= ~WM8993_MCLK_DIV;
+ wm8993->sysclk_rate = wm8993->fll_fout;
+ }
+ snd_soc_write(codec, WM8993_CLOCKING_2, reg);
+ break;
+
+ default:
+ dev_err(codec->dev, "System clock not configured\n");
+ return -EINVAL;
+ }
+
+ dev_dbg(codec->dev, "CLK_SYS is %dHz\n", wm8993->sysclk_rate);
+
+ return 0;
+}
+
+static const DECLARE_TLV_DB_SCALE(sidetone_tlv, -3600, 300, 0);
+static const DECLARE_TLV_DB_SCALE(drc_comp_threash, -4500, 75, 0);
+static const DECLARE_TLV_DB_SCALE(drc_comp_amp, -2250, 75, 0);
+static const DECLARE_TLV_DB_SCALE(drc_min_tlv, -1800, 600, 0);
+static const unsigned int drc_max_tlv[] = {
+ TLV_DB_RANGE_HEAD(2),
+ 0, 2, TLV_DB_SCALE_ITEM(1200, 600, 0),
+ 3, 3, TLV_DB_SCALE_ITEM(3600, 0, 0),
+};
+static const DECLARE_TLV_DB_SCALE(drc_qr_tlv, 1200, 600, 0);
+static const DECLARE_TLV_DB_SCALE(drc_startup_tlv, -1800, 300, 0);
+static const DECLARE_TLV_DB_SCALE(eq_tlv, -1200, 100, 0);
+static const DECLARE_TLV_DB_SCALE(digital_tlv, -7200, 75, 1);
+static const DECLARE_TLV_DB_SCALE(dac_boost_tlv, 0, 600, 0);
+
+static const char *dac_deemph_text[] = {
+ "None",
+ "32kHz",
+ "44.1kHz",
+ "48kHz",
+};
+
+static const struct soc_enum dac_deemph =
+ SOC_ENUM_SINGLE(WM8993_DAC_CTRL, 4, 4, dac_deemph_text);
+
+static const char *adc_hpf_text[] = {
+ "Hi-Fi",
+ "Voice 1",
+ "Voice 2",
+ "Voice 3",
+};
+
+static const struct soc_enum adc_hpf =
+ SOC_ENUM_SINGLE(WM8993_ADC_CTRL, 5, 4, adc_hpf_text);
+
+static const char *drc_path_text[] = {
+ "ADC",
+ "DAC"
+};
+
+static const struct soc_enum drc_path =
+ SOC_ENUM_SINGLE(WM8993_DRC_CONTROL_1, 14, 2, drc_path_text);
+
+static const char *drc_r0_text[] = {
+ "1",
+ "1/2",
+ "1/4",
+ "1/8",
+ "1/16",
+ "0",
+};
+
+static const struct soc_enum drc_r0 =
+ SOC_ENUM_SINGLE(WM8993_DRC_CONTROL_3, 8, 6, drc_r0_text);
+
+static const char *drc_r1_text[] = {
+ "1",
+ "1/2",
+ "1/4",
+ "1/8",
+ "0",
+};
+
+static const struct soc_enum drc_r1 =
+ SOC_ENUM_SINGLE(WM8993_DRC_CONTROL_4, 13, 5, drc_r1_text);
+
+static const char *drc_attack_text[] = {
+ "Reserved",
+ "181us",
+ "363us",
+ "726us",
+ "1.45ms",
+ "2.9ms",
+ "5.8ms",
+ "11.6ms",
+ "23.2ms",
+ "46.4ms",
+ "92.8ms",
+ "185.6ms",
+};
+
+static const struct soc_enum drc_attack =
+ SOC_ENUM_SINGLE(WM8993_DRC_CONTROL_2, 12, 12, drc_attack_text);
+
+static const char *drc_decay_text[] = {
+ "186ms",
+ "372ms",
+ "743ms",
+ "1.49s",
+ "2.97ms",
+ "5.94ms",
+ "11.89ms",
+ "23.78ms",
+ "47.56ms",
+};
+
+static const struct soc_enum drc_decay =
+ SOC_ENUM_SINGLE(WM8993_DRC_CONTROL_2, 8, 9, drc_decay_text);
+
+static const char *drc_ff_text[] = {
+ "5 samples",
+ "9 samples",
+};
+
+static const struct soc_enum drc_ff =
+ SOC_ENUM_SINGLE(WM8993_DRC_CONTROL_3, 7, 2, drc_ff_text);
+
+static const char *drc_qr_rate_text[] = {
+ "0.725ms",
+ "1.45ms",
+ "5.8ms",
+};
+
+static const struct soc_enum drc_qr_rate =
+ SOC_ENUM_SINGLE(WM8993_DRC_CONTROL_3, 0, 3, drc_qr_rate_text);
+
+static const char *drc_smooth_text[] = {
+ "Low",
+ "Medium",
+ "High",
+};
+
+static const struct soc_enum drc_smooth =
+ SOC_ENUM_SINGLE(WM8993_DRC_CONTROL_1, 4, 3, drc_smooth_text);
+
+static const struct snd_kcontrol_new wm8993_snd_controls[] = {
+SOC_DOUBLE_TLV("Digital Sidetone Volume", WM8993_DIGITAL_SIDE_TONE,
+ 5, 9, 12, 0, sidetone_tlv),
+
+SOC_SINGLE("DRC Switch", WM8993_DRC_CONTROL_1, 15, 1, 0),
+SOC_ENUM("DRC Path", drc_path),
+SOC_SINGLE_TLV("DRC Compressor Threshold Volume", WM8993_DRC_CONTROL_2,
+ 2, 60, 1, drc_comp_threash),
+SOC_SINGLE_TLV("DRC Compressor Amplitude Volume", WM8993_DRC_CONTROL_3,
+ 11, 30, 1, drc_comp_amp),
+SOC_ENUM("DRC R0", drc_r0),
+SOC_ENUM("DRC R1", drc_r1),
+SOC_SINGLE_TLV("DRC Minimum Volume", WM8993_DRC_CONTROL_1, 2, 3, 1,
+ drc_min_tlv),
+SOC_SINGLE_TLV("DRC Maximum Volume", WM8993_DRC_CONTROL_1, 0, 3, 0,
+ drc_max_tlv),
+SOC_ENUM("DRC Attack Rate", drc_attack),
+SOC_ENUM("DRC Decay Rate", drc_decay),
+SOC_ENUM("DRC FF Delay", drc_ff),
+SOC_SINGLE("DRC Anti-clip Switch", WM8993_DRC_CONTROL_1, 9, 1, 0),
+SOC_SINGLE("DRC Quick Release Switch", WM8993_DRC_CONTROL_1, 10, 1, 0),
+SOC_SINGLE_TLV("DRC Quick Release Volume", WM8993_DRC_CONTROL_3, 2, 3, 0,
+ drc_qr_tlv),
+SOC_ENUM("DRC Quick Release Rate", drc_qr_rate),
+SOC_SINGLE("DRC Smoothing Switch", WM8993_DRC_CONTROL_1, 11, 1, 0),
+SOC_SINGLE("DRC Smoothing Hysteresis Switch", WM8993_DRC_CONTROL_1, 8, 1, 0),
+SOC_ENUM("DRC Smoothing Hysteresis Threshold", drc_smooth),
+SOC_SINGLE_TLV("DRC Startup Volume", WM8993_DRC_CONTROL_4, 8, 18, 0,
+ drc_startup_tlv),
+
+SOC_SINGLE("EQ Switch", WM8993_EQ1, 0, 1, 0),
+
+SOC_DOUBLE_R_TLV("Capture Volume", WM8993_LEFT_ADC_DIGITAL_VOLUME,
+ WM8993_RIGHT_ADC_DIGITAL_VOLUME, 1, 96, 0, digital_tlv),
+SOC_SINGLE("ADC High Pass Filter Switch", WM8993_ADC_CTRL, 8, 1, 0),
+SOC_ENUM("ADC High Pass Filter Mode", adc_hpf),
+
+SOC_DOUBLE_R_TLV("Playback Volume", WM8993_LEFT_DAC_DIGITAL_VOLUME,
+ WM8993_RIGHT_DAC_DIGITAL_VOLUME, 1, 96, 0, digital_tlv),
+SOC_SINGLE_TLV("Playback Boost Volume", WM8993_AUDIO_INTERFACE_2, 10, 3, 0,
+ dac_boost_tlv),
+SOC_ENUM("DAC Deemphasis", dac_deemph),
+
+SOC_SINGLE_TLV("SPKL DAC Volume", WM8993_SPKMIXL_ATTENUATION,
+ 2, 1, 1, wm_hubs_spkmix_tlv),
+
+SOC_SINGLE_TLV("SPKR DAC Volume", WM8993_SPKMIXR_ATTENUATION,
+ 2, 1, 1, wm_hubs_spkmix_tlv),
+};
+
+static const struct snd_kcontrol_new wm8993_eq_controls[] = {
+SOC_SINGLE_TLV("EQ1 Volume", WM8993_EQ2, 0, 24, 0, eq_tlv),
+SOC_SINGLE_TLV("EQ2 Volume", WM8993_EQ3, 0, 24, 0, eq_tlv),
+SOC_SINGLE_TLV("EQ3 Volume", WM8993_EQ4, 0, 24, 0, eq_tlv),
+SOC_SINGLE_TLV("EQ4 Volume", WM8993_EQ5, 0, 24, 0, eq_tlv),
+SOC_SINGLE_TLV("EQ5 Volume", WM8993_EQ6, 0, 24, 0, eq_tlv),
+};
+
+static int clk_sys_event(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol, int event)
+{
+ struct snd_soc_codec *codec = w->codec;
+
+ switch (event) {
+ case SND_SOC_DAPM_PRE_PMU:
+ return configure_clock(codec);
+
+ case SND_SOC_DAPM_POST_PMD:
+ break;
+ }
+
+ return 0;
+}
+
+/*
+ * When used with DAC outputs only the WM8993 charge pump supports
+ * operation in class W mode, providing very low power consumption
+ * when used with digital sources. Enable and disable this mode
+ * automatically depending on the mixer configuration.
+ *
+ * Currently the only supported paths are the direct DAC->headphone
+ * paths (which provide minimum power consumption anyway).
+ */
+static int class_w_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol);
+ struct snd_soc_dapm_widget *widget = wlist->widgets[0];
+ struct snd_soc_codec *codec = widget->codec;
+ struct wm8993_priv *wm8993 = snd_soc_codec_get_drvdata(codec);
+ int ret;
+
+ /* Turn it off if we're using the main output mixer */
+ if (ucontrol->value.integer.value[0] == 0) {
+ if (wm8993->class_w_users == 0) {
+ dev_dbg(codec->dev, "Disabling Class W\n");
+ snd_soc_update_bits(codec, WM8993_CLASS_W_0,
+ WM8993_CP_DYN_FREQ |
+ WM8993_CP_DYN_V,
+ 0);
+ }
+ wm8993->class_w_users++;
+ wm8993->hubs_data.class_w = true;
+ }
+
+ /* Implement the change */
+ ret = snd_soc_dapm_put_enum_double(kcontrol, ucontrol);
+
+ /* Enable it if we're using the direct DAC path */
+ if (ucontrol->value.integer.value[0] == 1) {
+ if (wm8993->class_w_users == 1) {
+ dev_dbg(codec->dev, "Enabling Class W\n");
+ snd_soc_update_bits(codec, WM8993_CLASS_W_0,
+ WM8993_CP_DYN_FREQ |
+ WM8993_CP_DYN_V,
+ WM8993_CP_DYN_FREQ |
+ WM8993_CP_DYN_V);
+ }
+ wm8993->class_w_users--;
+ wm8993->hubs_data.class_w = false;
+ }
+
+ dev_dbg(codec->dev, "Indirect DAC use count now %d\n",
+ wm8993->class_w_users);
+
+ return ret;
+}
+
+#define SOC_DAPM_ENUM_W(xname, xenum) \
+{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
+ .info = snd_soc_info_enum_double, \
+ .get = snd_soc_dapm_get_enum_double, \
+ .put = class_w_put, \
+ .private_value = (unsigned long)&xenum }
+
+static const char *hp_mux_text[] = {
+ "Mixer",
+ "DAC",
+};
+
+static const struct soc_enum hpl_enum =
+ SOC_ENUM_SINGLE(WM8993_OUTPUT_MIXER1, 8, 2, hp_mux_text);
+
+static const struct snd_kcontrol_new hpl_mux =
+ SOC_DAPM_ENUM_W("Left Headphone Mux", hpl_enum);
+
+static const struct soc_enum hpr_enum =
+ SOC_ENUM_SINGLE(WM8993_OUTPUT_MIXER2, 8, 2, hp_mux_text);
+
+static const struct snd_kcontrol_new hpr_mux =
+ SOC_DAPM_ENUM_W("Right Headphone Mux", hpr_enum);
+
+static const struct snd_kcontrol_new left_speaker_mixer[] = {
+SOC_DAPM_SINGLE("Input Switch", WM8993_SPEAKER_MIXER, 7, 1, 0),
+SOC_DAPM_SINGLE("IN1LP Switch", WM8993_SPEAKER_MIXER, 5, 1, 0),
+SOC_DAPM_SINGLE("Output Switch", WM8993_SPEAKER_MIXER, 3, 1, 0),
+SOC_DAPM_SINGLE("DAC Switch", WM8993_SPEAKER_MIXER, 6, 1, 0),
+};
+
+static const struct snd_kcontrol_new right_speaker_mixer[] = {
+SOC_DAPM_SINGLE("Input Switch", WM8993_SPEAKER_MIXER, 6, 1, 0),
+SOC_DAPM_SINGLE("IN1RP Switch", WM8993_SPEAKER_MIXER, 4, 1, 0),
+SOC_DAPM_SINGLE("Output Switch", WM8993_SPEAKER_MIXER, 2, 1, 0),
+SOC_DAPM_SINGLE("DAC Switch", WM8993_SPEAKER_MIXER, 0, 1, 0),
+};
+
+static const char *aif_text[] = {
+ "Left", "Right"
+};
+
+static const struct soc_enum aifoutl_enum =
+ SOC_ENUM_SINGLE(WM8993_AUDIO_INTERFACE_1, 15, 2, aif_text);
+
+static const struct snd_kcontrol_new aifoutl_mux =
+ SOC_DAPM_ENUM("AIFOUTL Mux", aifoutl_enum);
+
+static const struct soc_enum aifoutr_enum =
+ SOC_ENUM_SINGLE(WM8993_AUDIO_INTERFACE_1, 14, 2, aif_text);
+
+static const struct snd_kcontrol_new aifoutr_mux =
+ SOC_DAPM_ENUM("AIFOUTR Mux", aifoutr_enum);
+
+static const struct soc_enum aifinl_enum =
+ SOC_ENUM_SINGLE(WM8993_AUDIO_INTERFACE_2, 15, 2, aif_text);
+
+static const struct snd_kcontrol_new aifinl_mux =
+ SOC_DAPM_ENUM("AIFINL Mux", aifinl_enum);
+
+static const struct soc_enum aifinr_enum =
+ SOC_ENUM_SINGLE(WM8993_AUDIO_INTERFACE_2, 14, 2, aif_text);
+
+static const struct snd_kcontrol_new aifinr_mux =
+ SOC_DAPM_ENUM("AIFINR Mux", aifinr_enum);
+
+static const char *sidetone_text[] = {
+ "None", "Left", "Right"
+};
+
+static const struct soc_enum sidetonel_enum =
+ SOC_ENUM_SINGLE(WM8993_DIGITAL_SIDE_TONE, 2, 3, sidetone_text);
+
+static const struct snd_kcontrol_new sidetonel_mux =
+ SOC_DAPM_ENUM("Left Sidetone", sidetonel_enum);
+
+static const struct soc_enum sidetoner_enum =
+ SOC_ENUM_SINGLE(WM8993_DIGITAL_SIDE_TONE, 0, 3, sidetone_text);
+
+static const struct snd_kcontrol_new sidetoner_mux =
+ SOC_DAPM_ENUM("Right Sidetone", sidetoner_enum);
+
+static const struct snd_soc_dapm_widget wm8993_dapm_widgets[] = {
+SND_SOC_DAPM_SUPPLY("CLK_SYS", WM8993_BUS_CONTROL_1, 1, 0, clk_sys_event,
+ SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
+SND_SOC_DAPM_SUPPLY("TOCLK", WM8993_CLOCKING_1, 14, 0, NULL, 0),
+SND_SOC_DAPM_SUPPLY("CLK_DSP", WM8993_CLOCKING_3, 0, 0, NULL, 0),
+SND_SOC_DAPM_SUPPLY("VMID", SND_SOC_NOPM, 0, 0, NULL, 0),
+
+SND_SOC_DAPM_ADC("ADCL", NULL, WM8993_POWER_MANAGEMENT_2, 1, 0),
+SND_SOC_DAPM_ADC("ADCR", NULL, WM8993_POWER_MANAGEMENT_2, 0, 0),
+
+SND_SOC_DAPM_MUX("AIFOUTL Mux", SND_SOC_NOPM, 0, 0, &aifoutl_mux),
+SND_SOC_DAPM_MUX("AIFOUTR Mux", SND_SOC_NOPM, 0, 0, &aifoutr_mux),
+
+SND_SOC_DAPM_AIF_OUT("AIFOUTL", "Capture", 0, SND_SOC_NOPM, 0, 0),
+SND_SOC_DAPM_AIF_OUT("AIFOUTR", "Capture", 1, SND_SOC_NOPM, 0, 0),
+
+SND_SOC_DAPM_AIF_IN("AIFINL", "Playback", 0, SND_SOC_NOPM, 0, 0),
+SND_SOC_DAPM_AIF_IN("AIFINR", "Playback", 1, SND_SOC_NOPM, 0, 0),
+
+SND_SOC_DAPM_MUX("DACL Mux", SND_SOC_NOPM, 0, 0, &aifinl_mux),
+SND_SOC_DAPM_MUX("DACR Mux", SND_SOC_NOPM, 0, 0, &aifinr_mux),
+
+SND_SOC_DAPM_MUX("DACL Sidetone", SND_SOC_NOPM, 0, 0, &sidetonel_mux),
+SND_SOC_DAPM_MUX("DACR Sidetone", SND_SOC_NOPM, 0, 0, &sidetoner_mux),
+
+SND_SOC_DAPM_DAC("DACL", NULL, WM8993_POWER_MANAGEMENT_3, 1, 0),
+SND_SOC_DAPM_DAC("DACR", NULL, WM8993_POWER_MANAGEMENT_3, 0, 0),
+
+SND_SOC_DAPM_MUX("Left Headphone Mux", SND_SOC_NOPM, 0, 0, &hpl_mux),
+SND_SOC_DAPM_MUX("Right Headphone Mux", SND_SOC_NOPM, 0, 0, &hpr_mux),
+
+SND_SOC_DAPM_MIXER("SPKL", WM8993_POWER_MANAGEMENT_3, 8, 0,
+ left_speaker_mixer, ARRAY_SIZE(left_speaker_mixer)),
+SND_SOC_DAPM_MIXER("SPKR", WM8993_POWER_MANAGEMENT_3, 9, 0,
+ right_speaker_mixer, ARRAY_SIZE(right_speaker_mixer)),
+SND_SOC_DAPM_PGA("Direct Voice", SND_SOC_NOPM, 0, 0, NULL, 0),
+};
+
+static const struct snd_soc_dapm_route routes[] = {
+ { "MICBIAS1", NULL, "VMID" },
+ { "MICBIAS2", NULL, "VMID" },
+
+ { "ADCL", NULL, "CLK_SYS" },
+ { "ADCL", NULL, "CLK_DSP" },
+ { "ADCR", NULL, "CLK_SYS" },
+ { "ADCR", NULL, "CLK_DSP" },
+
+ { "AIFOUTL Mux", "Left", "ADCL" },
+ { "AIFOUTL Mux", "Right", "ADCR" },
+ { "AIFOUTR Mux", "Left", "ADCL" },
+ { "AIFOUTR Mux", "Right", "ADCR" },
+
+ { "AIFOUTL", NULL, "AIFOUTL Mux" },
+ { "AIFOUTR", NULL, "AIFOUTR Mux" },
+
+ { "DACL Mux", "Left", "AIFINL" },
+ { "DACL Mux", "Right", "AIFINR" },
+ { "DACR Mux", "Left", "AIFINL" },
+ { "DACR Mux", "Right", "AIFINR" },
+
+ { "DACL Sidetone", "Left", "ADCL" },
+ { "DACL Sidetone", "Right", "ADCR" },
+ { "DACR Sidetone", "Left", "ADCL" },
+ { "DACR Sidetone", "Right", "ADCR" },
+
+ { "DACL", NULL, "CLK_SYS" },
+ { "DACL", NULL, "CLK_DSP" },
+ { "DACL", NULL, "DACL Mux" },
+ { "DACL", NULL, "DACL Sidetone" },
+ { "DACR", NULL, "CLK_SYS" },
+ { "DACR", NULL, "CLK_DSP" },
+ { "DACR", NULL, "DACR Mux" },
+ { "DACR", NULL, "DACR Sidetone" },
+
+ { "Left Output Mixer", "DAC Switch", "DACL" },
+
+ { "Right Output Mixer", "DAC Switch", "DACR" },
+
+ { "Left Output PGA", NULL, "CLK_SYS" },
+
+ { "Right Output PGA", NULL, "CLK_SYS" },
+
+ { "SPKL", "DAC Switch", "DACL" },
+ { "SPKL", NULL, "CLK_SYS" },
+
+ { "SPKR", "DAC Switch", "DACR" },
+ { "SPKR", NULL, "CLK_SYS" },
+
+ { "Left Headphone Mux", "DAC", "DACL" },
+ { "Right Headphone Mux", "DAC", "DACR" },
+};
+
+static int wm8993_set_bias_level(struct snd_soc_codec *codec,
+ enum snd_soc_bias_level level)
+{
+ struct wm8993_priv *wm8993 = snd_soc_codec_get_drvdata(codec);
+ int ret;
+
+ wm_hubs_set_bias_level(codec, level);
+
+ switch (level) {
+ case SND_SOC_BIAS_ON:
+ case SND_SOC_BIAS_PREPARE:
+ /* VMID=2*40k */
+ snd_soc_update_bits(codec, WM8993_POWER_MANAGEMENT_1,
+ WM8993_VMID_SEL_MASK, 0x2);
+ snd_soc_update_bits(codec, WM8993_POWER_MANAGEMENT_2,
+ WM8993_TSHUT_ENA, WM8993_TSHUT_ENA);
+ break;
+
+ case SND_SOC_BIAS_STANDBY:
+ if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
+ ret = regulator_bulk_enable(ARRAY_SIZE(wm8993->supplies),
+ wm8993->supplies);
+ if (ret != 0)
+ return ret;
+
+ regcache_cache_only(wm8993->regmap, false);
+ regcache_sync(wm8993->regmap);
+
+ wm_hubs_vmid_ena(codec);
+
+ /* Bring up VMID with fast soft start */
+ snd_soc_update_bits(codec, WM8993_ANTIPOP2,
+ WM8993_STARTUP_BIAS_ENA |
+ WM8993_VMID_BUF_ENA |
+ WM8993_VMID_RAMP_MASK |
+ WM8993_BIAS_SRC,
+ WM8993_STARTUP_BIAS_ENA |
+ WM8993_VMID_BUF_ENA |
+ WM8993_VMID_RAMP_MASK |
+ WM8993_BIAS_SRC);
+
+ /* If either line output is single ended we
+ * need the VMID buffer */
+ if (!wm8993->pdata.lineout1_diff ||
+ !wm8993->pdata.lineout2_diff)
+ snd_soc_update_bits(codec, WM8993_ANTIPOP1,
+ WM8993_LINEOUT_VMID_BUF_ENA,
+ WM8993_LINEOUT_VMID_BUF_ENA);
+
+ /* VMID=2*40k */
+ snd_soc_update_bits(codec, WM8993_POWER_MANAGEMENT_1,
+ WM8993_VMID_SEL_MASK |
+ WM8993_BIAS_ENA,
+ WM8993_BIAS_ENA | 0x2);
+ msleep(32);
+
+ /* Switch to normal bias */
+ snd_soc_update_bits(codec, WM8993_ANTIPOP2,
+ WM8993_BIAS_SRC |
+ WM8993_STARTUP_BIAS_ENA, 0);
+ }
+
+ /* VMID=2*240k */
+ snd_soc_update_bits(codec, WM8993_POWER_MANAGEMENT_1,
+ WM8993_VMID_SEL_MASK, 0x4);
+
+ snd_soc_update_bits(codec, WM8993_POWER_MANAGEMENT_2,
+ WM8993_TSHUT_ENA, 0);
+ break;
+
+ case SND_SOC_BIAS_OFF:
+ snd_soc_update_bits(codec, WM8993_ANTIPOP1,
+ WM8993_LINEOUT_VMID_BUF_ENA, 0);
+
+ snd_soc_update_bits(codec, WM8993_POWER_MANAGEMENT_1,
+ WM8993_VMID_SEL_MASK | WM8993_BIAS_ENA,
+ 0);
+
+ snd_soc_update_bits(codec, WM8993_ANTIPOP2,
+ WM8993_STARTUP_BIAS_ENA |
+ WM8993_VMID_BUF_ENA |
+ WM8993_VMID_RAMP_MASK |
+ WM8993_BIAS_SRC, 0);
+
+ regcache_cache_only(wm8993->regmap, true);
+ regcache_mark_dirty(wm8993->regmap);
+
+ regulator_bulk_disable(ARRAY_SIZE(wm8993->supplies),
+ wm8993->supplies);
+ break;
+ }
+
+ codec->dapm.bias_level = level;
+
+ return 0;
+}
+
+static int wm8993_set_sysclk(struct snd_soc_dai *codec_dai,
+ int clk_id, unsigned int freq, int dir)
+{
+ struct snd_soc_codec *codec = codec_dai->codec;
+ struct wm8993_priv *wm8993 = snd_soc_codec_get_drvdata(codec);
+
+ switch (clk_id) {
+ case WM8993_SYSCLK_MCLK:
+ wm8993->mclk_rate = freq;
+ case WM8993_SYSCLK_FLL:
+ wm8993->sysclk_source = clk_id;
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int wm8993_set_dai_fmt(struct snd_soc_dai *dai,
+ unsigned int fmt)
+{
+ struct snd_soc_codec *codec = dai->codec;
+ struct wm8993_priv *wm8993 = snd_soc_codec_get_drvdata(codec);
+ unsigned int aif1 = snd_soc_read(codec, WM8993_AUDIO_INTERFACE_1);
+ unsigned int aif4 = snd_soc_read(codec, WM8993_AUDIO_INTERFACE_4);
+
+ aif1 &= ~(WM8993_BCLK_DIR | WM8993_AIF_BCLK_INV |
+ WM8993_AIF_LRCLK_INV | WM8993_AIF_FMT_MASK);
+ aif4 &= ~WM8993_LRCLK_DIR;
+
+ switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+ case SND_SOC_DAIFMT_CBS_CFS:
+ wm8993->master = 0;
+ break;
+ case SND_SOC_DAIFMT_CBS_CFM:
+ aif4 |= WM8993_LRCLK_DIR;
+ wm8993->master = 1;
+ break;
+ case SND_SOC_DAIFMT_CBM_CFS:
+ aif1 |= WM8993_BCLK_DIR;
+ wm8993->master = 1;
+ break;
+ case SND_SOC_DAIFMT_CBM_CFM:
+ aif1 |= WM8993_BCLK_DIR;
+ aif4 |= WM8993_LRCLK_DIR;
+ wm8993->master = 1;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case SND_SOC_DAIFMT_DSP_B:
+ aif1 |= WM8993_AIF_LRCLK_INV;
+ case SND_SOC_DAIFMT_DSP_A:
+ aif1 |= 0x18;
+ break;
+ case SND_SOC_DAIFMT_I2S:
+ aif1 |= 0x10;
+ break;
+ case SND_SOC_DAIFMT_RIGHT_J:
+ break;
+ case SND_SOC_DAIFMT_LEFT_J:
+ aif1 |= 0x8;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case SND_SOC_DAIFMT_DSP_A:
+ case SND_SOC_DAIFMT_DSP_B:
+ /* frame inversion not valid for DSP modes */
+ switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+ case SND_SOC_DAIFMT_NB_NF:
+ break;
+ case SND_SOC_DAIFMT_IB_NF:
+ aif1 |= WM8993_AIF_BCLK_INV;
+ break;
+ default:
+ return -EINVAL;
+ }
+ break;
+
+ case SND_SOC_DAIFMT_I2S:
+ case SND_SOC_DAIFMT_RIGHT_J:
+ case SND_SOC_DAIFMT_LEFT_J:
+ switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+ case SND_SOC_DAIFMT_NB_NF:
+ break;
+ case SND_SOC_DAIFMT_IB_IF:
+ aif1 |= WM8993_AIF_BCLK_INV | WM8993_AIF_LRCLK_INV;
+ break;
+ case SND_SOC_DAIFMT_IB_NF:
+ aif1 |= WM8993_AIF_BCLK_INV;
+ break;
+ case SND_SOC_DAIFMT_NB_IF:
+ aif1 |= WM8993_AIF_LRCLK_INV;
+ break;
+ default:
+ return -EINVAL;
+ }
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ snd_soc_write(codec, WM8993_AUDIO_INTERFACE_1, aif1);
+ snd_soc_write(codec, WM8993_AUDIO_INTERFACE_4, aif4);
+
+ return 0;
+}
+
+static int wm8993_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 wm8993_priv *wm8993 = snd_soc_codec_get_drvdata(codec);
+ int ret, i, best, best_val, cur_val;
+ unsigned int clocking1, clocking3, aif1, aif4;
+
+ clocking1 = snd_soc_read(codec, WM8993_CLOCKING_1);
+ clocking1 &= ~WM8993_BCLK_DIV_MASK;
+
+ clocking3 = snd_soc_read(codec, WM8993_CLOCKING_3);
+ clocking3 &= ~(WM8993_CLK_SYS_RATE_MASK | WM8993_SAMPLE_RATE_MASK);
+
+ aif1 = snd_soc_read(codec, WM8993_AUDIO_INTERFACE_1);
+ aif1 &= ~WM8993_AIF_WL_MASK;
+
+ aif4 = snd_soc_read(codec, WM8993_AUDIO_INTERFACE_4);
+ aif4 &= ~WM8993_LRCLK_RATE_MASK;
+
+ /* What BCLK do we need? */
+ wm8993->fs = params_rate(params);
+ wm8993->bclk = 2 * wm8993->fs;
+ if (wm8993->tdm_slots) {
+ dev_dbg(codec->dev, "Configuring for %d %d bit TDM slots\n",
+ wm8993->tdm_slots, wm8993->tdm_width);
+ wm8993->bclk *= wm8993->tdm_width * wm8993->tdm_slots;
+ } else {
+ switch (params_format(params)) {
+ case SNDRV_PCM_FORMAT_S16_LE:
+ wm8993->bclk *= 16;
+ break;
+ case SNDRV_PCM_FORMAT_S20_3LE:
+ wm8993->bclk *= 20;
+ aif1 |= 0x8;
+ break;
+ case SNDRV_PCM_FORMAT_S24_LE:
+ wm8993->bclk *= 24;
+ aif1 |= 0x10;
+ break;
+ case SNDRV_PCM_FORMAT_S32_LE:
+ wm8993->bclk *= 32;
+ aif1 |= 0x18;
+ break;
+ default:
+ return -EINVAL;
+ }
+ }
+
+ dev_dbg(codec->dev, "Target BCLK is %dHz\n", wm8993->bclk);
+
+ ret = configure_clock(codec);
+ if (ret != 0)
+ return ret;
+
+ /* Select nearest CLK_SYS_RATE */
+ best = 0;
+ best_val = abs((wm8993->sysclk_rate / clk_sys_rates[0].ratio)
+ - wm8993->fs);
+ for (i = 1; i < ARRAY_SIZE(clk_sys_rates); i++) {
+ cur_val = abs((wm8993->sysclk_rate /
+ clk_sys_rates[i].ratio) - wm8993->fs);
+ if (cur_val < best_val) {
+ best = i;
+ best_val = cur_val;
+ }
+ }
+ dev_dbg(codec->dev, "Selected CLK_SYS_RATIO of %d\n",
+ clk_sys_rates[best].ratio);
+ clocking3 |= (clk_sys_rates[best].clk_sys_rate
+ << WM8993_CLK_SYS_RATE_SHIFT);
+
+ /* SAMPLE_RATE */
+ best = 0;
+ best_val = abs(wm8993->fs - sample_rates[0].rate);
+ for (i = 1; i < ARRAY_SIZE(sample_rates); i++) {
+ /* Closest match */
+ cur_val = abs(wm8993->fs - sample_rates[i].rate);
+ if (cur_val < best_val) {
+ best = i;
+ best_val = cur_val;
+ }
+ }
+ dev_dbg(codec->dev, "Selected SAMPLE_RATE of %dHz\n",
+ sample_rates[best].rate);
+ clocking3 |= (sample_rates[best].sample_rate
+ << WM8993_SAMPLE_RATE_SHIFT);
+
+ /* BCLK_DIV */
+ best = 0;
+ best_val = INT_MAX;
+ for (i = 0; i < ARRAY_SIZE(bclk_divs); i++) {
+ cur_val = ((wm8993->sysclk_rate * 10) / bclk_divs[i].div)
+ - wm8993->bclk;
+ if (cur_val < 0) /* Table is sorted */
+ break;
+ if (cur_val < best_val) {
+ best = i;
+ best_val = cur_val;
+ }
+ }
+ wm8993->bclk = (wm8993->sysclk_rate * 10) / bclk_divs[best].div;
+ dev_dbg(codec->dev, "Selected BCLK_DIV of %d for %dHz BCLK\n",
+ bclk_divs[best].div, wm8993->bclk);
+ clocking1 |= bclk_divs[best].bclk_div << WM8993_BCLK_DIV_SHIFT;
+
+ /* LRCLK is a simple fraction of BCLK */
+ dev_dbg(codec->dev, "LRCLK_RATE is %d\n", wm8993->bclk / wm8993->fs);
+ aif4 |= wm8993->bclk / wm8993->fs;
+
+ snd_soc_write(codec, WM8993_CLOCKING_1, clocking1);
+ snd_soc_write(codec, WM8993_CLOCKING_3, clocking3);
+ snd_soc_write(codec, WM8993_AUDIO_INTERFACE_1, aif1);
+ snd_soc_write(codec, WM8993_AUDIO_INTERFACE_4, aif4);
+
+ /* ReTune Mobile? */
+ if (wm8993->pdata.num_retune_configs) {
+ u16 eq1 = snd_soc_read(codec, WM8993_EQ1);
+ struct wm8993_retune_mobile_setting *s;
+
+ best = 0;
+ best_val = abs(wm8993->pdata.retune_configs[0].rate
+ - wm8993->fs);
+ for (i = 0; i < wm8993->pdata.num_retune_configs; i++) {
+ cur_val = abs(wm8993->pdata.retune_configs[i].rate
+ - wm8993->fs);
+ if (cur_val < best_val) {
+ best_val = cur_val;
+ best = i;
+ }
+ }
+ s = &wm8993->pdata.retune_configs[best];
+
+ dev_dbg(codec->dev, "ReTune Mobile %s tuned for %dHz\n",
+ s->name, s->rate);
+
+ /* Disable EQ while we reconfigure */
+ snd_soc_update_bits(codec, WM8993_EQ1, WM8993_EQ_ENA, 0);
+
+ for (i = 1; i < ARRAY_SIZE(s->config); i++)
+ snd_soc_write(codec, WM8993_EQ1 + i, s->config[i]);
+
+ snd_soc_update_bits(codec, WM8993_EQ1, WM8993_EQ_ENA, eq1);
+ }
+
+ return 0;
+}
+
+static int wm8993_digital_mute(struct snd_soc_dai *codec_dai, int mute)
+{
+ struct snd_soc_codec *codec = codec_dai->codec;
+ unsigned int reg;
+
+ reg = snd_soc_read(codec, WM8993_DAC_CTRL);
+
+ if (mute)
+ reg |= WM8993_DAC_MUTE;
+ else
+ reg &= ~WM8993_DAC_MUTE;
+
+ snd_soc_write(codec, WM8993_DAC_CTRL, reg);
+
+ return 0;
+}
+
+static int wm8993_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
+ unsigned int rx_mask, int slots, int slot_width)
+{
+ struct snd_soc_codec *codec = dai->codec;
+ struct wm8993_priv *wm8993 = snd_soc_codec_get_drvdata(codec);
+ int aif1 = 0;
+ int aif2 = 0;
+
+ /* Don't need to validate anything if we're turning off TDM */
+ if (slots == 0) {
+ wm8993->tdm_slots = 0;
+ goto out;
+ }
+
+ /* Note that we allow configurations we can't handle ourselves -
+ * for example, we can generate clocks for slots 2 and up even if
+ * we can't use those slots ourselves.
+ */
+ aif1 |= WM8993_AIFADC_TDM;
+ aif2 |= WM8993_AIFDAC_TDM;
+
+ switch (rx_mask) {
+ case 3:
+ break;
+ case 0xc:
+ aif1 |= WM8993_AIFADC_TDM_CHAN;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+
+ switch (tx_mask) {
+ case 3:
+ break;
+ case 0xc:
+ aif2 |= WM8993_AIFDAC_TDM_CHAN;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+out:
+ wm8993->tdm_width = slot_width;
+ wm8993->tdm_slots = slots / 2;
+
+ snd_soc_update_bits(codec, WM8993_AUDIO_INTERFACE_1,
+ WM8993_AIFADC_TDM | WM8993_AIFADC_TDM_CHAN, aif1);
+ snd_soc_update_bits(codec, WM8993_AUDIO_INTERFACE_2,
+ WM8993_AIFDAC_TDM | WM8993_AIFDAC_TDM_CHAN, aif2);
+
+ return 0;
+}
+
+static irqreturn_t wm8993_irq(int irq, void *data)
+{
+ struct wm8993_priv *wm8993 = data;
+ int mask, val, ret;
+
+ ret = regmap_read(wm8993->regmap, WM8993_GPIO_CTRL_1, &val);
+ if (ret != 0) {
+ dev_err(wm8993->dev, "Failed to read interrupt status: %d\n",
+ ret);
+ return IRQ_NONE;
+ }
+
+ ret = regmap_read(wm8993->regmap, WM8993_GPIOCTRL_2, &mask);
+ if (ret != 0) {
+ dev_err(wm8993->dev, "Failed to read interrupt mask: %d\n",
+ ret);
+ return IRQ_NONE;
+ }
+
+ /* The IRQ pin status is visible in the register too */
+ val &= ~(mask | WM8993_IRQ);
+ if (!val)
+ return IRQ_NONE;
+
+ if (val & WM8993_TEMPOK_EINT)
+ dev_crit(wm8993->dev, "Thermal warning\n");
+
+ if (val & WM8993_FLL_LOCK_EINT) {
+ dev_dbg(wm8993->dev, "FLL locked\n");
+ complete(&wm8993->fll_lock);
+ }
+
+ ret = regmap_write(wm8993->regmap, WM8993_GPIO_CTRL_1, val);
+ if (ret != 0)
+ dev_err(wm8993->dev, "Failed to ack interrupt: %d\n", ret);
+
+ return IRQ_HANDLED;
+}
+
+static const struct snd_soc_dai_ops wm8993_ops = {
+ .set_sysclk = wm8993_set_sysclk,
+ .set_fmt = wm8993_set_dai_fmt,
+ .hw_params = wm8993_hw_params,
+ .digital_mute = wm8993_digital_mute,
+ .set_pll = wm8993_set_fll,
+ .set_tdm_slot = wm8993_set_tdm_slot,
+};
+
+#define WM8993_RATES SNDRV_PCM_RATE_8000_48000
+
+#define WM8993_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 wm8993_dai = {
+ .name = "wm8993-hifi",
+ .playback = {
+ .stream_name = "Playback",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = WM8993_RATES,
+ .formats = WM8993_FORMATS,
+ .sig_bits = 24,
+ },
+ .capture = {
+ .stream_name = "Capture",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = WM8993_RATES,
+ .formats = WM8993_FORMATS,
+ .sig_bits = 24,
+ },
+ .ops = &wm8993_ops,
+ .symmetric_rates = 1,
+};
+
+static int wm8993_probe(struct snd_soc_codec *codec)
+{
+ struct wm8993_priv *wm8993 = snd_soc_codec_get_drvdata(codec);
+ struct snd_soc_dapm_context *dapm = &codec->dapm;
+ int ret;
+
+ wm8993->hubs_data.hp_startup_mode = 1;
+ wm8993->hubs_data.dcs_codes_l = -2;
+ wm8993->hubs_data.dcs_codes_r = -2;
+ wm8993->hubs_data.series_startup = 1;
+
+ codec->control_data = wm8993->regmap;
+ ret = snd_soc_codec_set_cache_io(codec, 8, 16, SND_SOC_REGMAP);
+ if (ret != 0) {
+ dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
+ return ret;
+ }
+
+ /* By default we're using the output mixers */
+ wm8993->class_w_users = 2;
+
+ /* Latch volume update bits and default ZC on */
+ snd_soc_update_bits(codec, WM8993_RIGHT_DAC_DIGITAL_VOLUME,
+ WM8993_DAC_VU, WM8993_DAC_VU);
+ snd_soc_update_bits(codec, WM8993_RIGHT_ADC_DIGITAL_VOLUME,
+ WM8993_ADC_VU, WM8993_ADC_VU);
+
+ /* Manualy manage the HPOUT sequencing for independent stereo
+ * control. */
+ snd_soc_update_bits(codec, WM8993_ANALOGUE_HP_0,
+ WM8993_HPOUT1_AUTO_PU, 0);
+
+ /* Use automatic clock configuration */
+ snd_soc_update_bits(codec, WM8993_CLOCKING_4, WM8993_SR_MODE, 0);
+
+ wm_hubs_handle_analogue_pdata(codec, wm8993->pdata.lineout1_diff,
+ wm8993->pdata.lineout2_diff,
+ wm8993->pdata.lineout1fb,
+ wm8993->pdata.lineout2fb,
+ wm8993->pdata.jd_scthr,
+ wm8993->pdata.jd_thr,
+ wm8993->pdata.micbias1_lvl,
+ wm8993->pdata.micbias2_lvl);
+
+ ret = wm8993_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
+ if (ret != 0)
+ return ret;
+
+ snd_soc_add_codec_controls(codec, wm8993_snd_controls,
+ ARRAY_SIZE(wm8993_snd_controls));
+ if (wm8993->pdata.num_retune_configs != 0) {
+ dev_dbg(codec->dev, "Using ReTune Mobile\n");
+ } else {
+ dev_dbg(codec->dev, "No ReTune Mobile, using normal EQ\n");
+ snd_soc_add_codec_controls(codec, wm8993_eq_controls,
+ ARRAY_SIZE(wm8993_eq_controls));
+ }
+
+ snd_soc_dapm_new_controls(dapm, wm8993_dapm_widgets,
+ ARRAY_SIZE(wm8993_dapm_widgets));
+ wm_hubs_add_analogue_controls(codec);
+
+ snd_soc_dapm_add_routes(dapm, routes, ARRAY_SIZE(routes));
+ wm_hubs_add_analogue_routes(codec, wm8993->pdata.lineout1_diff,
+ wm8993->pdata.lineout2_diff);
+
+ /* If the line outputs are differential then we aren't presenting
+ * VMID as an output and can disable it.
+ */
+ if (wm8993->pdata.lineout1_diff && wm8993->pdata.lineout2_diff)
+ codec->dapm.idle_bias_off = 1;
+
+ return 0;
+
+}
+
+static int wm8993_remove(struct snd_soc_codec *codec)
+{
+ struct wm8993_priv *wm8993 = snd_soc_codec_get_drvdata(codec);
+
+ wm8993_set_bias_level(codec, SND_SOC_BIAS_OFF);
+ regulator_bulk_free(ARRAY_SIZE(wm8993->supplies), wm8993->supplies);
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int wm8993_suspend(struct snd_soc_codec *codec)
+{
+ struct wm8993_priv *wm8993 = snd_soc_codec_get_drvdata(codec);
+ int fll_fout = wm8993->fll_fout;
+ int fll_fref = wm8993->fll_fref;
+ int ret;
+
+ /* Stop the FLL in an orderly fashion */
+ ret = _wm8993_set_fll(codec, 0, 0, 0, 0);
+ if (ret != 0) {
+ dev_err(codec->dev, "Failed to stop FLL\n");
+ return ret;
+ }
+
+ wm8993->fll_fout = fll_fout;
+ wm8993->fll_fref = fll_fref;
+
+ wm8993_set_bias_level(codec, SND_SOC_BIAS_OFF);
+
+ return 0;
+}
+
+static int wm8993_resume(struct snd_soc_codec *codec)
+{
+ struct wm8993_priv *wm8993 = snd_soc_codec_get_drvdata(codec);
+ int ret;
+
+ wm8993_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
+
+ /* Restart the FLL? */
+ if (wm8993->fll_fout) {
+ int fll_fout = wm8993->fll_fout;
+ int fll_fref = wm8993->fll_fref;
+
+ wm8993->fll_fref = 0;
+ wm8993->fll_fout = 0;
+
+ ret = _wm8993_set_fll(codec, 0, wm8993->fll_src,
+ fll_fref, fll_fout);
+ if (ret != 0)
+ dev_err(codec->dev, "Failed to restart FLL\n");
+ }
+
+ return 0;
+}
+#else
+#define wm8993_suspend NULL
+#define wm8993_resume NULL
+#endif
+
+/* Tune DC servo configuration */
+static struct reg_default wm8993_regmap_patch[] = {
+ { 0x44, 3 },
+ { 0x56, 3 },
+ { 0x44, 0 },
+};
+
+static const struct regmap_config wm8993_regmap = {
+ .reg_bits = 8,
+ .val_bits = 16,
+
+ .max_register = WM8993_MAX_REGISTER,
+ .volatile_reg = wm8993_volatile,
+ .readable_reg = wm8993_readable,
+
+ .cache_type = REGCACHE_RBTREE,
+ .reg_defaults = wm8993_reg_defaults,
+ .num_reg_defaults = ARRAY_SIZE(wm8993_reg_defaults),
+};
+
+static struct snd_soc_codec_driver soc_codec_dev_wm8993 = {
+ .probe = wm8993_probe,
+ .remove = wm8993_remove,
+ .suspend = wm8993_suspend,
+ .resume = wm8993_resume,
+ .set_bias_level = wm8993_set_bias_level,
+};
+
+static __devinit int wm8993_i2c_probe(struct i2c_client *i2c,
+ const struct i2c_device_id *id)
+{
+ struct wm8993_priv *wm8993;
+ unsigned int reg;
+ int ret, i;
+
+ wm8993 = devm_kzalloc(&i2c->dev, sizeof(struct wm8993_priv),
+ GFP_KERNEL);
+ if (wm8993 == NULL)
+ return -ENOMEM;
+
+ wm8993->dev = &i2c->dev;
+ init_completion(&wm8993->fll_lock);
+
+ wm8993->regmap = regmap_init_i2c(i2c, &wm8993_regmap);
+ if (IS_ERR(wm8993->regmap)) {
+ ret = PTR_ERR(wm8993->regmap);
+ dev_err(&i2c->dev, "Failed to allocate regmap: %d\n", ret);
+ return ret;
+ }
+
+ i2c_set_clientdata(i2c, wm8993);
+
+ for (i = 0; i < ARRAY_SIZE(wm8993->supplies); i++)
+ wm8993->supplies[i].supply = wm8993_supply_names[i];
+
+ ret = regulator_bulk_get(&i2c->dev, ARRAY_SIZE(wm8993->supplies),
+ wm8993->supplies);
+ if (ret != 0) {
+ dev_err(&i2c->dev, "Failed to request supplies: %d\n", ret);
+ goto err;
+ }
+
+ ret = regulator_bulk_enable(ARRAY_SIZE(wm8993->supplies),
+ wm8993->supplies);
+ if (ret != 0) {
+ dev_err(&i2c->dev, "Failed to enable supplies: %d\n", ret);
+ goto err_get;
+ }
+
+ ret = regmap_read(wm8993->regmap, WM8993_SOFTWARE_RESET, &reg);
+ if (ret != 0) {
+ dev_err(&i2c->dev, "Failed to read chip ID: %d\n", ret);
+ goto err_enable;
+ }
+
+ if (reg != 0x8993) {
+ dev_err(&i2c->dev, "Invalid ID register value %x\n", reg);
+ ret = -EINVAL;
+ goto err_enable;
+ }
+
+ ret = regmap_write(wm8993->regmap, WM8993_SOFTWARE_RESET, 0xffff);
+ if (ret != 0)
+ goto err_enable;
+
+ ret = regmap_register_patch(wm8993->regmap, wm8993_regmap_patch,
+ ARRAY_SIZE(wm8993_regmap_patch));
+ if (ret != 0)
+ dev_warn(wm8993->dev, "Failed to apply regmap patch: %d\n",
+ ret);
+
+ if (i2c->irq) {
+ /* Put GPIO1 into interrupt mode (only GPIO1 can output IRQ) */
+ ret = regmap_update_bits(wm8993->regmap, WM8993_GPIO1,
+ WM8993_GPIO1_PD |
+ WM8993_GPIO1_SEL_MASK, 7);
+ if (ret != 0)
+ goto err_enable;
+
+ ret = request_threaded_irq(i2c->irq, NULL, wm8993_irq,
+ IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
+ "wm8993", wm8993);
+ if (ret != 0)
+ goto err_enable;
+
+ }
+
+ regulator_bulk_disable(ARRAY_SIZE(wm8993->supplies), wm8993->supplies);
+
+ regcache_cache_only(wm8993->regmap, true);
+
+ ret = snd_soc_register_codec(&i2c->dev,
+ &soc_codec_dev_wm8993, &wm8993_dai, 1);
+ if (ret != 0) {
+ dev_err(&i2c->dev, "Failed to register CODEC: %d\n", ret);
+ goto err_irq;
+ }
+
+ return 0;
+
+err_irq:
+ if (i2c->irq)
+ free_irq(i2c->irq, wm8993);
+err_enable:
+ regulator_bulk_disable(ARRAY_SIZE(wm8993->supplies), wm8993->supplies);
+err_get:
+ regulator_bulk_free(ARRAY_SIZE(wm8993->supplies), wm8993->supplies);
+err:
+ regmap_exit(wm8993->regmap);
+ return ret;
+}
+
+static __devexit int wm8993_i2c_remove(struct i2c_client *i2c)
+{
+ struct wm8993_priv *wm8993 = i2c_get_clientdata(i2c);
+
+ snd_soc_unregister_codec(&i2c->dev);
+ if (i2c->irq)
+ free_irq(i2c->irq, wm8993);
+ regmap_exit(wm8993->regmap);
+ regulator_bulk_disable(ARRAY_SIZE(wm8993->supplies), wm8993->supplies);
+ regulator_bulk_free(ARRAY_SIZE(wm8993->supplies), wm8993->supplies);
+
+ return 0;
+}
+
+static const struct i2c_device_id wm8993_i2c_id[] = {
+ { "wm8993", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, wm8993_i2c_id);
+
+static struct i2c_driver wm8993_i2c_driver = {
+ .driver = {
+ .name = "wm8993",
+ .owner = THIS_MODULE,
+ },
+ .probe = wm8993_i2c_probe,
+ .remove = __devexit_p(wm8993_i2c_remove),
+ .id_table = wm8993_i2c_id,
+};
+
+module_i2c_driver(wm8993_i2c_driver);
+
+MODULE_DESCRIPTION("ASoC WM8993 driver");
+MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
+MODULE_LICENSE("GPL");
generated by cgit (git 2.34.1) at 2024-12-21 06:40:39 +0000