1177 lines
31 KiB
C
1177 lines
31 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* ALSA SoC TWL6040 codec driver
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*
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* Author: Misael Lopez Cruz <x0052729@ti.com>
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*/
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/init.h>
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#include <linux/delay.h>
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#include <linux/pm.h>
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#include <linux/platform_device.h>
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#include <linux/slab.h>
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#include <linux/mfd/twl6040.h>
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#include <sound/core.h>
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#include <sound/pcm.h>
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#include <sound/pcm_params.h>
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#include <sound/soc.h>
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#include <sound/soc-dapm.h>
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#include <sound/initval.h>
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#include <sound/tlv.h>
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#include "twl6040.h"
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enum twl6040_dai_id {
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TWL6040_DAI_LEGACY = 0,
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TWL6040_DAI_UL,
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TWL6040_DAI_DL1,
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TWL6040_DAI_DL2,
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TWL6040_DAI_VIB,
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};
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#define TWL6040_RATES SNDRV_PCM_RATE_8000_96000
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#define TWL6040_FORMATS (SNDRV_PCM_FMTBIT_S32_LE)
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#define TWL6040_OUTHS_0dB 0x00
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#define TWL6040_OUTHS_M30dB 0x0F
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#define TWL6040_OUTHF_0dB 0x03
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#define TWL6040_OUTHF_M52dB 0x1D
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#define TWL6040_CACHEREGNUM (TWL6040_REG_STATUS + 1)
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struct twl6040_jack_data {
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struct snd_soc_jack *jack;
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struct delayed_work work;
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int report;
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};
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/* codec private data */
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struct twl6040_data {
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int plug_irq;
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int codec_powered;
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int pll;
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int pll_power_mode;
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int hs_power_mode;
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int hs_power_mode_locked;
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bool dl1_unmuted;
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bool dl2_unmuted;
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u8 dl12_cache[TWL6040_REG_HFRCTL - TWL6040_REG_HSLCTL + 1];
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unsigned int clk_in;
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unsigned int sysclk;
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struct twl6040_jack_data hs_jack;
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struct snd_soc_component *component;
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struct mutex mutex;
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};
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/* set of rates for each pll: low-power and high-performance */
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static const unsigned int lp_rates[] = {
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8000,
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11250,
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16000,
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22500,
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32000,
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44100,
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48000,
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88200,
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96000,
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};
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static const unsigned int hp_rates[] = {
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8000,
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16000,
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32000,
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48000,
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96000,
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};
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static const struct snd_pcm_hw_constraint_list sysclk_constraints[] = {
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{ .count = ARRAY_SIZE(lp_rates), .list = lp_rates, },
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{ .count = ARRAY_SIZE(hp_rates), .list = hp_rates, },
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};
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#define to_twl6040(component) dev_get_drvdata((component)->dev->parent)
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static unsigned int twl6040_read(struct snd_soc_component *component, unsigned int reg)
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{
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struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
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struct twl6040 *twl6040 = to_twl6040(component);
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u8 value;
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if (reg >= TWL6040_CACHEREGNUM)
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return -EIO;
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switch (reg) {
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case TWL6040_REG_HSLCTL:
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case TWL6040_REG_HSRCTL:
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case TWL6040_REG_EARCTL:
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case TWL6040_REG_HFLCTL:
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case TWL6040_REG_HFRCTL:
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value = priv->dl12_cache[reg - TWL6040_REG_HSLCTL];
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break;
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default:
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value = twl6040_reg_read(twl6040, reg);
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break;
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}
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return value;
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}
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static bool twl6040_can_write_to_chip(struct snd_soc_component *component,
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unsigned int reg)
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{
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struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
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switch (reg) {
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case TWL6040_REG_HSLCTL:
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case TWL6040_REG_HSRCTL:
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case TWL6040_REG_EARCTL:
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/* DL1 path */
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return priv->dl1_unmuted;
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case TWL6040_REG_HFLCTL:
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case TWL6040_REG_HFRCTL:
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return priv->dl2_unmuted;
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default:
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return true;
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}
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}
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static inline void twl6040_update_dl12_cache(struct snd_soc_component *component,
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u8 reg, u8 value)
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{
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struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
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switch (reg) {
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case TWL6040_REG_HSLCTL:
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case TWL6040_REG_HSRCTL:
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case TWL6040_REG_EARCTL:
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case TWL6040_REG_HFLCTL:
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case TWL6040_REG_HFRCTL:
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priv->dl12_cache[reg - TWL6040_REG_HSLCTL] = value;
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break;
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default:
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break;
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}
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}
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static int twl6040_write(struct snd_soc_component *component,
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unsigned int reg, unsigned int value)
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{
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struct twl6040 *twl6040 = to_twl6040(component);
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if (reg >= TWL6040_CACHEREGNUM)
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return -EIO;
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twl6040_update_dl12_cache(component, reg, value);
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if (twl6040_can_write_to_chip(component, reg))
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return twl6040_reg_write(twl6040, reg, value);
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else
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return 0;
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}
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static void twl6040_init_chip(struct snd_soc_component *component)
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{
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twl6040_read(component, TWL6040_REG_TRIM1);
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twl6040_read(component, TWL6040_REG_TRIM2);
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twl6040_read(component, TWL6040_REG_TRIM3);
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twl6040_read(component, TWL6040_REG_HSOTRIM);
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twl6040_read(component, TWL6040_REG_HFOTRIM);
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/* Change chip defaults */
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/* No imput selected for microphone amplifiers */
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twl6040_write(component, TWL6040_REG_MICLCTL, 0x18);
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twl6040_write(component, TWL6040_REG_MICRCTL, 0x18);
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/*
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* We need to lower the default gain values, so the ramp code
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* can work correctly for the first playback.
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* This reduces the pop noise heard at the first playback.
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*/
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twl6040_write(component, TWL6040_REG_HSGAIN, 0xff);
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twl6040_write(component, TWL6040_REG_EARCTL, 0x1e);
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twl6040_write(component, TWL6040_REG_HFLGAIN, 0x1d);
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twl6040_write(component, TWL6040_REG_HFRGAIN, 0x1d);
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twl6040_write(component, TWL6040_REG_LINEGAIN, 0);
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}
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/* set headset dac and driver power mode */
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static int headset_power_mode(struct snd_soc_component *component, int high_perf)
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{
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int hslctl, hsrctl;
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int mask = TWL6040_HSDRVMODE | TWL6040_HSDACMODE;
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hslctl = twl6040_read(component, TWL6040_REG_HSLCTL);
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hsrctl = twl6040_read(component, TWL6040_REG_HSRCTL);
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if (high_perf) {
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hslctl &= ~mask;
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hsrctl &= ~mask;
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} else {
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hslctl |= mask;
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hsrctl |= mask;
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}
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twl6040_write(component, TWL6040_REG_HSLCTL, hslctl);
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twl6040_write(component, TWL6040_REG_HSRCTL, hsrctl);
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return 0;
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}
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static int twl6040_hs_dac_event(struct snd_soc_dapm_widget *w,
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struct snd_kcontrol *kcontrol, int event)
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{
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struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
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u8 hslctl, hsrctl;
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/*
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* Workaround for Headset DC offset caused pop noise:
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* Both HS DAC need to be turned on (before the HS driver) and off at
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* the same time.
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*/
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hslctl = twl6040_read(component, TWL6040_REG_HSLCTL);
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hsrctl = twl6040_read(component, TWL6040_REG_HSRCTL);
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if (SND_SOC_DAPM_EVENT_ON(event)) {
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hslctl |= TWL6040_HSDACENA;
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hsrctl |= TWL6040_HSDACENA;
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} else {
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hslctl &= ~TWL6040_HSDACENA;
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hsrctl &= ~TWL6040_HSDACENA;
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}
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twl6040_write(component, TWL6040_REG_HSLCTL, hslctl);
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twl6040_write(component, TWL6040_REG_HSRCTL, hsrctl);
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msleep(1);
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return 0;
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}
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static int twl6040_ep_drv_event(struct snd_soc_dapm_widget *w,
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struct snd_kcontrol *kcontrol, int event)
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{
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struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
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struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
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int ret = 0;
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if (SND_SOC_DAPM_EVENT_ON(event)) {
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/* Earphone doesn't support low power mode */
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priv->hs_power_mode_locked = 1;
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ret = headset_power_mode(component, 1);
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} else {
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priv->hs_power_mode_locked = 0;
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ret = headset_power_mode(component, priv->hs_power_mode);
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}
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msleep(1);
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return ret;
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}
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static void twl6040_hs_jack_report(struct snd_soc_component *component,
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struct snd_soc_jack *jack, int report)
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{
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struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
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int status;
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mutex_lock(&priv->mutex);
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/* Sync status */
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status = twl6040_read(component, TWL6040_REG_STATUS);
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if (status & TWL6040_PLUGCOMP)
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snd_soc_jack_report(jack, report, report);
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else
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snd_soc_jack_report(jack, 0, report);
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mutex_unlock(&priv->mutex);
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}
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void twl6040_hs_jack_detect(struct snd_soc_component *component,
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struct snd_soc_jack *jack, int report)
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{
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struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
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struct twl6040_jack_data *hs_jack = &priv->hs_jack;
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hs_jack->jack = jack;
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hs_jack->report = report;
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twl6040_hs_jack_report(component, hs_jack->jack, hs_jack->report);
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}
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EXPORT_SYMBOL_GPL(twl6040_hs_jack_detect);
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static void twl6040_accessory_work(struct work_struct *work)
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{
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struct twl6040_data *priv = container_of(work,
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struct twl6040_data, hs_jack.work.work);
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struct snd_soc_component *component = priv->component;
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struct twl6040_jack_data *hs_jack = &priv->hs_jack;
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twl6040_hs_jack_report(component, hs_jack->jack, hs_jack->report);
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}
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/* audio interrupt handler */
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static irqreturn_t twl6040_audio_handler(int irq, void *data)
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{
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struct snd_soc_component *component = data;
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struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
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queue_delayed_work(system_power_efficient_wq,
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&priv->hs_jack.work, msecs_to_jiffies(200));
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return IRQ_HANDLED;
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}
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static int twl6040_soc_dapm_put_vibra_enum(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct snd_soc_component *component = snd_soc_dapm_kcontrol_component(kcontrol);
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struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
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unsigned int val;
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/* Do not allow changes while Input/FF efect is running */
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val = twl6040_read(component, e->reg);
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if (val & TWL6040_VIBENA && !(val & TWL6040_VIBSEL))
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return -EBUSY;
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return snd_soc_dapm_put_enum_double(kcontrol, ucontrol);
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}
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/*
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* MICATT volume control:
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* from -6 to 0 dB in 6 dB steps
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*/
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static DECLARE_TLV_DB_SCALE(mic_preamp_tlv, -600, 600, 0);
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/*
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* MICGAIN volume control:
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* from 6 to 30 dB in 6 dB steps
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*/
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static DECLARE_TLV_DB_SCALE(mic_amp_tlv, 600, 600, 0);
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/*
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* AFMGAIN volume control:
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* from -18 to 24 dB in 6 dB steps
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*/
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static DECLARE_TLV_DB_SCALE(afm_amp_tlv, -1800, 600, 0);
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/*
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* HSGAIN volume control:
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* from -30 to 0 dB in 2 dB steps
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*/
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static DECLARE_TLV_DB_SCALE(hs_tlv, -3000, 200, 0);
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/*
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* HFGAIN volume control:
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* from -52 to 6 dB in 2 dB steps
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*/
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static DECLARE_TLV_DB_SCALE(hf_tlv, -5200, 200, 0);
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/*
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* EPGAIN volume control:
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* from -24 to 6 dB in 2 dB steps
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*/
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static DECLARE_TLV_DB_SCALE(ep_tlv, -2400, 200, 0);
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/* Left analog microphone selection */
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static const char *twl6040_amicl_texts[] =
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{"Headset Mic", "Main Mic", "Aux/FM Left", "Off"};
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/* Right analog microphone selection */
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static const char *twl6040_amicr_texts[] =
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{"Headset Mic", "Sub Mic", "Aux/FM Right", "Off"};
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static const struct soc_enum twl6040_enum[] = {
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SOC_ENUM_SINGLE(TWL6040_REG_MICLCTL, 3,
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ARRAY_SIZE(twl6040_amicl_texts), twl6040_amicl_texts),
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SOC_ENUM_SINGLE(TWL6040_REG_MICRCTL, 3,
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ARRAY_SIZE(twl6040_amicr_texts), twl6040_amicr_texts),
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};
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static const char *twl6040_hs_texts[] = {
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"Off", "HS DAC", "Line-In amp"
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};
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static const struct soc_enum twl6040_hs_enum[] = {
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SOC_ENUM_SINGLE(TWL6040_REG_HSLCTL, 5, ARRAY_SIZE(twl6040_hs_texts),
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twl6040_hs_texts),
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SOC_ENUM_SINGLE(TWL6040_REG_HSRCTL, 5, ARRAY_SIZE(twl6040_hs_texts),
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twl6040_hs_texts),
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};
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static const char *twl6040_hf_texts[] = {
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"Off", "HF DAC", "Line-In amp"
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};
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static const struct soc_enum twl6040_hf_enum[] = {
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SOC_ENUM_SINGLE(TWL6040_REG_HFLCTL, 2, ARRAY_SIZE(twl6040_hf_texts),
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twl6040_hf_texts),
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SOC_ENUM_SINGLE(TWL6040_REG_HFRCTL, 2, ARRAY_SIZE(twl6040_hf_texts),
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twl6040_hf_texts),
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};
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static const char *twl6040_vibrapath_texts[] = {
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"Input FF", "Audio PDM"
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};
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static const struct soc_enum twl6040_vibra_enum[] = {
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SOC_ENUM_SINGLE(TWL6040_REG_VIBCTLL, 1,
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ARRAY_SIZE(twl6040_vibrapath_texts),
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twl6040_vibrapath_texts),
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SOC_ENUM_SINGLE(TWL6040_REG_VIBCTLR, 1,
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ARRAY_SIZE(twl6040_vibrapath_texts),
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twl6040_vibrapath_texts),
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};
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static const struct snd_kcontrol_new amicl_control =
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SOC_DAPM_ENUM("Route", twl6040_enum[0]);
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static const struct snd_kcontrol_new amicr_control =
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SOC_DAPM_ENUM("Route", twl6040_enum[1]);
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/* Headset DAC playback switches */
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static const struct snd_kcontrol_new hsl_mux_controls =
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SOC_DAPM_ENUM("Route", twl6040_hs_enum[0]);
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static const struct snd_kcontrol_new hsr_mux_controls =
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SOC_DAPM_ENUM("Route", twl6040_hs_enum[1]);
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/* Handsfree DAC playback switches */
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static const struct snd_kcontrol_new hfl_mux_controls =
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SOC_DAPM_ENUM("Route", twl6040_hf_enum[0]);
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static const struct snd_kcontrol_new hfr_mux_controls =
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SOC_DAPM_ENUM("Route", twl6040_hf_enum[1]);
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static const struct snd_kcontrol_new ep_path_enable_control =
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SOC_DAPM_SINGLE_VIRT("Switch", 1);
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static const struct snd_kcontrol_new auxl_switch_control =
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SOC_DAPM_SINGLE("Switch", TWL6040_REG_HFLCTL, 6, 1, 0);
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static const struct snd_kcontrol_new auxr_switch_control =
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SOC_DAPM_SINGLE("Switch", TWL6040_REG_HFRCTL, 6, 1, 0);
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/* Vibra playback switches */
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static const struct snd_kcontrol_new vibral_mux_controls =
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SOC_DAPM_ENUM_EXT("Route", twl6040_vibra_enum[0],
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snd_soc_dapm_get_enum_double,
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twl6040_soc_dapm_put_vibra_enum);
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static const struct snd_kcontrol_new vibrar_mux_controls =
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SOC_DAPM_ENUM_EXT("Route", twl6040_vibra_enum[1],
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snd_soc_dapm_get_enum_double,
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twl6040_soc_dapm_put_vibra_enum);
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/* Headset power mode */
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static const char *twl6040_power_mode_texts[] = {
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"Low-Power", "High-Performance",
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};
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static SOC_ENUM_SINGLE_EXT_DECL(twl6040_power_mode_enum,
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twl6040_power_mode_texts);
|
|
|
|
static int twl6040_headset_power_get_enum(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
|
|
struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
|
|
|
|
ucontrol->value.enumerated.item[0] = priv->hs_power_mode;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int twl6040_headset_power_put_enum(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
|
|
struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
|
|
int high_perf = ucontrol->value.enumerated.item[0];
|
|
int ret = 0;
|
|
|
|
if (!priv->hs_power_mode_locked)
|
|
ret = headset_power_mode(component, high_perf);
|
|
|
|
if (!ret)
|
|
priv->hs_power_mode = high_perf;
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int twl6040_pll_get_enum(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
|
|
struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
|
|
|
|
ucontrol->value.enumerated.item[0] = priv->pll_power_mode;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int twl6040_pll_put_enum(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
|
|
struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
|
|
|
|
priv->pll_power_mode = ucontrol->value.enumerated.item[0];
|
|
|
|
return 0;
|
|
}
|
|
|
|
int twl6040_get_dl1_gain(struct snd_soc_component *component)
|
|
{
|
|
struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
|
|
|
|
if (snd_soc_dapm_get_pin_status(dapm, "EP"))
|
|
return -1; /* -1dB */
|
|
|
|
if (snd_soc_dapm_get_pin_status(dapm, "HSOR") ||
|
|
snd_soc_dapm_get_pin_status(dapm, "HSOL")) {
|
|
|
|
u8 val = twl6040_read(component, TWL6040_REG_HSLCTL);
|
|
if (val & TWL6040_HSDACMODE)
|
|
/* HSDACL in LP mode */
|
|
return -8; /* -8dB */
|
|
else
|
|
/* HSDACL in HP mode */
|
|
return -1; /* -1dB */
|
|
}
|
|
return 0; /* 0dB */
|
|
}
|
|
EXPORT_SYMBOL_GPL(twl6040_get_dl1_gain);
|
|
|
|
int twl6040_get_clk_id(struct snd_soc_component *component)
|
|
{
|
|
struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
|
|
|
|
return priv->pll_power_mode;
|
|
}
|
|
EXPORT_SYMBOL_GPL(twl6040_get_clk_id);
|
|
|
|
int twl6040_get_trim_value(struct snd_soc_component *component, enum twl6040_trim trim)
|
|
{
|
|
if (unlikely(trim >= TWL6040_TRIM_INVAL))
|
|
return -EINVAL;
|
|
|
|
return twl6040_read(component, TWL6040_REG_TRIM1 + trim);
|
|
}
|
|
EXPORT_SYMBOL_GPL(twl6040_get_trim_value);
|
|
|
|
int twl6040_get_hs_step_size(struct snd_soc_component *component)
|
|
{
|
|
struct twl6040 *twl6040 = to_twl6040(component);
|
|
|
|
if (twl6040_get_revid(twl6040) < TWL6040_REV_ES1_3)
|
|
/* For ES under ES_1.3 HS step is 2 mV */
|
|
return 2;
|
|
else
|
|
/* For ES_1.3 HS step is 1 mV */
|
|
return 1;
|
|
}
|
|
EXPORT_SYMBOL_GPL(twl6040_get_hs_step_size);
|
|
|
|
static const struct snd_kcontrol_new twl6040_snd_controls[] = {
|
|
/* Capture gains */
|
|
SOC_DOUBLE_TLV("Capture Preamplifier Volume",
|
|
TWL6040_REG_MICGAIN, 6, 7, 1, 1, mic_preamp_tlv),
|
|
SOC_DOUBLE_TLV("Capture Volume",
|
|
TWL6040_REG_MICGAIN, 0, 3, 4, 0, mic_amp_tlv),
|
|
|
|
/* AFM gains */
|
|
SOC_DOUBLE_TLV("Aux FM Volume",
|
|
TWL6040_REG_LINEGAIN, 0, 3, 7, 0, afm_amp_tlv),
|
|
|
|
/* Playback gains */
|
|
SOC_DOUBLE_TLV("Headset Playback Volume",
|
|
TWL6040_REG_HSGAIN, 0, 4, 0xF, 1, hs_tlv),
|
|
SOC_DOUBLE_R_TLV("Handsfree Playback Volume",
|
|
TWL6040_REG_HFLGAIN, TWL6040_REG_HFRGAIN, 0, 0x1D, 1, hf_tlv),
|
|
SOC_SINGLE_TLV("Earphone Playback Volume",
|
|
TWL6040_REG_EARCTL, 1, 0xF, 1, ep_tlv),
|
|
|
|
SOC_ENUM_EXT("Headset Power Mode", twl6040_power_mode_enum,
|
|
twl6040_headset_power_get_enum,
|
|
twl6040_headset_power_put_enum),
|
|
|
|
/* Left HS PDM data routed to Right HSDAC */
|
|
SOC_SINGLE("Headset Mono to Stereo Playback Switch",
|
|
TWL6040_REG_HSRCTL, 7, 1, 0),
|
|
|
|
/* Left HF PDM data routed to Right HFDAC */
|
|
SOC_SINGLE("Handsfree Mono to Stereo Playback Switch",
|
|
TWL6040_REG_HFRCTL, 5, 1, 0),
|
|
|
|
SOC_ENUM_EXT("PLL Selection", twl6040_power_mode_enum,
|
|
twl6040_pll_get_enum, twl6040_pll_put_enum),
|
|
};
|
|
|
|
static const struct snd_soc_dapm_widget twl6040_dapm_widgets[] = {
|
|
/* Inputs */
|
|
SND_SOC_DAPM_INPUT("MAINMIC"),
|
|
SND_SOC_DAPM_INPUT("HSMIC"),
|
|
SND_SOC_DAPM_INPUT("SUBMIC"),
|
|
SND_SOC_DAPM_INPUT("AFML"),
|
|
SND_SOC_DAPM_INPUT("AFMR"),
|
|
|
|
/* Outputs */
|
|
SND_SOC_DAPM_OUTPUT("HSOL"),
|
|
SND_SOC_DAPM_OUTPUT("HSOR"),
|
|
SND_SOC_DAPM_OUTPUT("HFL"),
|
|
SND_SOC_DAPM_OUTPUT("HFR"),
|
|
SND_SOC_DAPM_OUTPUT("EP"),
|
|
SND_SOC_DAPM_OUTPUT("AUXL"),
|
|
SND_SOC_DAPM_OUTPUT("AUXR"),
|
|
SND_SOC_DAPM_OUTPUT("VIBRAL"),
|
|
SND_SOC_DAPM_OUTPUT("VIBRAR"),
|
|
|
|
/* Analog input muxes for the capture amplifiers */
|
|
SND_SOC_DAPM_MUX("Analog Left Capture Route",
|
|
SND_SOC_NOPM, 0, 0, &amicl_control),
|
|
SND_SOC_DAPM_MUX("Analog Right Capture Route",
|
|
SND_SOC_NOPM, 0, 0, &amicr_control),
|
|
|
|
/* Analog capture PGAs */
|
|
SND_SOC_DAPM_PGA("MicAmpL",
|
|
TWL6040_REG_MICLCTL, 0, 0, NULL, 0),
|
|
SND_SOC_DAPM_PGA("MicAmpR",
|
|
TWL6040_REG_MICRCTL, 0, 0, NULL, 0),
|
|
|
|
/* Auxiliary FM PGAs */
|
|
SND_SOC_DAPM_PGA("AFMAmpL",
|
|
TWL6040_REG_MICLCTL, 1, 0, NULL, 0),
|
|
SND_SOC_DAPM_PGA("AFMAmpR",
|
|
TWL6040_REG_MICRCTL, 1, 0, NULL, 0),
|
|
|
|
/* ADCs */
|
|
SND_SOC_DAPM_ADC("ADC Left", NULL, TWL6040_REG_MICLCTL, 2, 0),
|
|
SND_SOC_DAPM_ADC("ADC Right", NULL, TWL6040_REG_MICRCTL, 2, 0),
|
|
|
|
/* Microphone bias */
|
|
SND_SOC_DAPM_SUPPLY("Headset Mic Bias",
|
|
TWL6040_REG_AMICBCTL, 0, 0, NULL, 0),
|
|
SND_SOC_DAPM_SUPPLY("Main Mic Bias",
|
|
TWL6040_REG_AMICBCTL, 4, 0, NULL, 0),
|
|
SND_SOC_DAPM_SUPPLY("Digital Mic1 Bias",
|
|
TWL6040_REG_DMICBCTL, 0, 0, NULL, 0),
|
|
SND_SOC_DAPM_SUPPLY("Digital Mic2 Bias",
|
|
TWL6040_REG_DMICBCTL, 4, 0, NULL, 0),
|
|
|
|
/* DACs */
|
|
SND_SOC_DAPM_DAC("HSDAC Left", NULL, SND_SOC_NOPM, 0, 0),
|
|
SND_SOC_DAPM_DAC("HSDAC Right", NULL, SND_SOC_NOPM, 0, 0),
|
|
SND_SOC_DAPM_DAC("HFDAC Left", NULL, TWL6040_REG_HFLCTL, 0, 0),
|
|
SND_SOC_DAPM_DAC("HFDAC Right", NULL, TWL6040_REG_HFRCTL, 0, 0),
|
|
/* Virtual DAC for vibra path (DL4 channel) */
|
|
SND_SOC_DAPM_DAC("VIBRA DAC", NULL, SND_SOC_NOPM, 0, 0),
|
|
|
|
SND_SOC_DAPM_MUX("Handsfree Left Playback",
|
|
SND_SOC_NOPM, 0, 0, &hfl_mux_controls),
|
|
SND_SOC_DAPM_MUX("Handsfree Right Playback",
|
|
SND_SOC_NOPM, 0, 0, &hfr_mux_controls),
|
|
/* Analog playback Muxes */
|
|
SND_SOC_DAPM_MUX("Headset Left Playback",
|
|
SND_SOC_NOPM, 0, 0, &hsl_mux_controls),
|
|
SND_SOC_DAPM_MUX("Headset Right Playback",
|
|
SND_SOC_NOPM, 0, 0, &hsr_mux_controls),
|
|
|
|
SND_SOC_DAPM_MUX("Vibra Left Playback", SND_SOC_NOPM, 0, 0,
|
|
&vibral_mux_controls),
|
|
SND_SOC_DAPM_MUX("Vibra Right Playback", SND_SOC_NOPM, 0, 0,
|
|
&vibrar_mux_controls),
|
|
|
|
SND_SOC_DAPM_SWITCH("Earphone Playback", SND_SOC_NOPM, 0, 0,
|
|
&ep_path_enable_control),
|
|
SND_SOC_DAPM_SWITCH("AUXL Playback", SND_SOC_NOPM, 0, 0,
|
|
&auxl_switch_control),
|
|
SND_SOC_DAPM_SWITCH("AUXR Playback", SND_SOC_NOPM, 0, 0,
|
|
&auxr_switch_control),
|
|
|
|
/* Analog playback drivers */
|
|
SND_SOC_DAPM_OUT_DRV("HF Left Driver",
|
|
TWL6040_REG_HFLCTL, 4, 0, NULL, 0),
|
|
SND_SOC_DAPM_OUT_DRV("HF Right Driver",
|
|
TWL6040_REG_HFRCTL, 4, 0, NULL, 0),
|
|
SND_SOC_DAPM_OUT_DRV("HS Left Driver",
|
|
TWL6040_REG_HSLCTL, 2, 0, NULL, 0),
|
|
SND_SOC_DAPM_OUT_DRV("HS Right Driver",
|
|
TWL6040_REG_HSRCTL, 2, 0, NULL, 0),
|
|
SND_SOC_DAPM_OUT_DRV_E("Earphone Driver",
|
|
TWL6040_REG_EARCTL, 0, 0, NULL, 0,
|
|
twl6040_ep_drv_event,
|
|
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
|
|
SND_SOC_DAPM_OUT_DRV("Vibra Left Driver",
|
|
TWL6040_REG_VIBCTLL, 0, 0, NULL, 0),
|
|
SND_SOC_DAPM_OUT_DRV("Vibra Right Driver",
|
|
TWL6040_REG_VIBCTLR, 0, 0, NULL, 0),
|
|
|
|
SND_SOC_DAPM_SUPPLY("Vibra Left Control", TWL6040_REG_VIBCTLL, 2, 0,
|
|
NULL, 0),
|
|
SND_SOC_DAPM_SUPPLY("Vibra Right Control", TWL6040_REG_VIBCTLR, 2, 0,
|
|
NULL, 0),
|
|
SND_SOC_DAPM_SUPPLY_S("HSDAC Power", 1, SND_SOC_NOPM, 0, 0,
|
|
twl6040_hs_dac_event,
|
|
SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
|
|
|
|
/* Analog playback PGAs */
|
|
SND_SOC_DAPM_PGA("HF Left PGA",
|
|
TWL6040_REG_HFLCTL, 1, 0, NULL, 0),
|
|
SND_SOC_DAPM_PGA("HF Right PGA",
|
|
TWL6040_REG_HFRCTL, 1, 0, NULL, 0),
|
|
|
|
};
|
|
|
|
static const struct snd_soc_dapm_route intercon[] = {
|
|
/* Stream -> DAC mapping */
|
|
{"HSDAC Left", NULL, "Legacy Playback"},
|
|
{"HSDAC Left", NULL, "Headset Playback"},
|
|
{"HSDAC Right", NULL, "Legacy Playback"},
|
|
{"HSDAC Right", NULL, "Headset Playback"},
|
|
|
|
{"HFDAC Left", NULL, "Legacy Playback"},
|
|
{"HFDAC Left", NULL, "Handsfree Playback"},
|
|
{"HFDAC Right", NULL, "Legacy Playback"},
|
|
{"HFDAC Right", NULL, "Handsfree Playback"},
|
|
|
|
{"VIBRA DAC", NULL, "Legacy Playback"},
|
|
{"VIBRA DAC", NULL, "Vibra Playback"},
|
|
|
|
/* ADC -> Stream mapping */
|
|
{"Legacy Capture" , NULL, "ADC Left"},
|
|
{"Capture", NULL, "ADC Left"},
|
|
{"Legacy Capture", NULL, "ADC Right"},
|
|
{"Capture" , NULL, "ADC Right"},
|
|
|
|
/* Capture path */
|
|
{"Analog Left Capture Route", "Headset Mic", "HSMIC"},
|
|
{"Analog Left Capture Route", "Main Mic", "MAINMIC"},
|
|
{"Analog Left Capture Route", "Aux/FM Left", "AFML"},
|
|
|
|
{"Analog Right Capture Route", "Headset Mic", "HSMIC"},
|
|
{"Analog Right Capture Route", "Sub Mic", "SUBMIC"},
|
|
{"Analog Right Capture Route", "Aux/FM Right", "AFMR"},
|
|
|
|
{"MicAmpL", NULL, "Analog Left Capture Route"},
|
|
{"MicAmpR", NULL, "Analog Right Capture Route"},
|
|
|
|
{"ADC Left", NULL, "MicAmpL"},
|
|
{"ADC Right", NULL, "MicAmpR"},
|
|
|
|
/* AFM path */
|
|
{"AFMAmpL", NULL, "AFML"},
|
|
{"AFMAmpR", NULL, "AFMR"},
|
|
|
|
{"HSDAC Left", NULL, "HSDAC Power"},
|
|
{"HSDAC Right", NULL, "HSDAC Power"},
|
|
|
|
{"Headset Left Playback", "HS DAC", "HSDAC Left"},
|
|
{"Headset Left Playback", "Line-In amp", "AFMAmpL"},
|
|
|
|
{"Headset Right Playback", "HS DAC", "HSDAC Right"},
|
|
{"Headset Right Playback", "Line-In amp", "AFMAmpR"},
|
|
|
|
{"HS Left Driver", NULL, "Headset Left Playback"},
|
|
{"HS Right Driver", NULL, "Headset Right Playback"},
|
|
|
|
{"HSOL", NULL, "HS Left Driver"},
|
|
{"HSOR", NULL, "HS Right Driver"},
|
|
|
|
/* Earphone playback path */
|
|
{"Earphone Playback", "Switch", "HSDAC Left"},
|
|
{"Earphone Driver", NULL, "Earphone Playback"},
|
|
{"EP", NULL, "Earphone Driver"},
|
|
|
|
{"Handsfree Left Playback", "HF DAC", "HFDAC Left"},
|
|
{"Handsfree Left Playback", "Line-In amp", "AFMAmpL"},
|
|
|
|
{"Handsfree Right Playback", "HF DAC", "HFDAC Right"},
|
|
{"Handsfree Right Playback", "Line-In amp", "AFMAmpR"},
|
|
|
|
{"HF Left PGA", NULL, "Handsfree Left Playback"},
|
|
{"HF Right PGA", NULL, "Handsfree Right Playback"},
|
|
|
|
{"HF Left Driver", NULL, "HF Left PGA"},
|
|
{"HF Right Driver", NULL, "HF Right PGA"},
|
|
|
|
{"HFL", NULL, "HF Left Driver"},
|
|
{"HFR", NULL, "HF Right Driver"},
|
|
|
|
{"AUXL Playback", "Switch", "HF Left PGA"},
|
|
{"AUXR Playback", "Switch", "HF Right PGA"},
|
|
|
|
{"AUXL", NULL, "AUXL Playback"},
|
|
{"AUXR", NULL, "AUXR Playback"},
|
|
|
|
/* Vibrator paths */
|
|
{"Vibra Left Playback", "Audio PDM", "VIBRA DAC"},
|
|
{"Vibra Right Playback", "Audio PDM", "VIBRA DAC"},
|
|
|
|
{"Vibra Left Driver", NULL, "Vibra Left Playback"},
|
|
{"Vibra Right Driver", NULL, "Vibra Right Playback"},
|
|
{"Vibra Left Driver", NULL, "Vibra Left Control"},
|
|
{"Vibra Right Driver", NULL, "Vibra Right Control"},
|
|
|
|
{"VIBRAL", NULL, "Vibra Left Driver"},
|
|
{"VIBRAR", NULL, "Vibra Right Driver"},
|
|
};
|
|
|
|
static int twl6040_set_bias_level(struct snd_soc_component *component,
|
|
enum snd_soc_bias_level level)
|
|
{
|
|
struct twl6040 *twl6040 = to_twl6040(component);
|
|
struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
|
|
int ret = 0;
|
|
|
|
switch (level) {
|
|
case SND_SOC_BIAS_ON:
|
|
break;
|
|
case SND_SOC_BIAS_PREPARE:
|
|
break;
|
|
case SND_SOC_BIAS_STANDBY:
|
|
if (priv->codec_powered) {
|
|
/* Select low power PLL in standby */
|
|
ret = twl6040_set_pll(twl6040, TWL6040_SYSCLK_SEL_LPPLL,
|
|
32768, 19200000);
|
|
break;
|
|
}
|
|
|
|
ret = twl6040_power(twl6040, 1);
|
|
if (ret)
|
|
break;
|
|
|
|
priv->codec_powered = 1;
|
|
|
|
/* Set external boost GPO */
|
|
twl6040_write(component, TWL6040_REG_GPOCTL, 0x02);
|
|
break;
|
|
case SND_SOC_BIAS_OFF:
|
|
if (!priv->codec_powered)
|
|
break;
|
|
|
|
twl6040_power(twl6040, 0);
|
|
priv->codec_powered = 0;
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int twl6040_startup(struct snd_pcm_substream *substream,
|
|
struct snd_soc_dai *dai)
|
|
{
|
|
struct snd_soc_component *component = dai->component;
|
|
struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
|
|
|
|
snd_pcm_hw_constraint_list(substream->runtime, 0,
|
|
SNDRV_PCM_HW_PARAM_RATE,
|
|
&sysclk_constraints[priv->pll_power_mode]);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int twl6040_hw_params(struct snd_pcm_substream *substream,
|
|
struct snd_pcm_hw_params *params,
|
|
struct snd_soc_dai *dai)
|
|
{
|
|
struct snd_soc_component *component = dai->component;
|
|
struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
|
|
int rate;
|
|
|
|
rate = params_rate(params);
|
|
switch (rate) {
|
|
case 11250:
|
|
case 22500:
|
|
case 44100:
|
|
case 88200:
|
|
/* These rates are not supported when HPPLL is in use */
|
|
if (unlikely(priv->pll == TWL6040_SYSCLK_SEL_HPPLL)) {
|
|
dev_err(component->dev, "HPPLL does not support rate %d\n",
|
|
rate);
|
|
return -EINVAL;
|
|
}
|
|
priv->sysclk = 17640000;
|
|
break;
|
|
case 8000:
|
|
case 16000:
|
|
case 32000:
|
|
case 48000:
|
|
case 96000:
|
|
priv->sysclk = 19200000;
|
|
break;
|
|
default:
|
|
dev_err(component->dev, "unsupported rate %d\n", rate);
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int twl6040_prepare(struct snd_pcm_substream *substream,
|
|
struct snd_soc_dai *dai)
|
|
{
|
|
struct snd_soc_component *component = dai->component;
|
|
struct twl6040 *twl6040 = to_twl6040(component);
|
|
struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
|
|
int ret;
|
|
|
|
if (!priv->sysclk) {
|
|
dev_err(component->dev,
|
|
"no mclk configured, call set_sysclk() on init\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
ret = twl6040_set_pll(twl6040, priv->pll, priv->clk_in, priv->sysclk);
|
|
if (ret) {
|
|
dev_err(component->dev, "Can not set PLL (%d)\n", ret);
|
|
return -EPERM;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int twl6040_set_dai_sysclk(struct snd_soc_dai *codec_dai,
|
|
int clk_id, unsigned int freq, int dir)
|
|
{
|
|
struct snd_soc_component *component = codec_dai->component;
|
|
struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
|
|
|
|
switch (clk_id) {
|
|
case TWL6040_SYSCLK_SEL_LPPLL:
|
|
case TWL6040_SYSCLK_SEL_HPPLL:
|
|
priv->pll = clk_id;
|
|
priv->clk_in = freq;
|
|
break;
|
|
default:
|
|
dev_err(component->dev, "unknown clk_id %d\n", clk_id);
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void twl6040_mute_path(struct snd_soc_component *component, enum twl6040_dai_id id,
|
|
int mute)
|
|
{
|
|
struct twl6040 *twl6040 = to_twl6040(component);
|
|
struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
|
|
int hslctl, hsrctl, earctl;
|
|
int hflctl, hfrctl;
|
|
|
|
switch (id) {
|
|
case TWL6040_DAI_DL1:
|
|
hslctl = twl6040_read(component, TWL6040_REG_HSLCTL);
|
|
hsrctl = twl6040_read(component, TWL6040_REG_HSRCTL);
|
|
earctl = twl6040_read(component, TWL6040_REG_EARCTL);
|
|
|
|
if (mute) {
|
|
/* Power down drivers and DACs */
|
|
earctl &= ~0x01;
|
|
hslctl &= ~(TWL6040_HSDRVENA | TWL6040_HSDACENA);
|
|
hsrctl &= ~(TWL6040_HSDRVENA | TWL6040_HSDACENA);
|
|
|
|
}
|
|
|
|
twl6040_reg_write(twl6040, TWL6040_REG_EARCTL, earctl);
|
|
twl6040_reg_write(twl6040, TWL6040_REG_HSLCTL, hslctl);
|
|
twl6040_reg_write(twl6040, TWL6040_REG_HSRCTL, hsrctl);
|
|
priv->dl1_unmuted = !mute;
|
|
break;
|
|
case TWL6040_DAI_DL2:
|
|
hflctl = twl6040_read(component, TWL6040_REG_HFLCTL);
|
|
hfrctl = twl6040_read(component, TWL6040_REG_HFRCTL);
|
|
|
|
if (mute) {
|
|
/* Power down drivers and DACs */
|
|
hflctl &= ~(TWL6040_HFDACENA | TWL6040_HFPGAENA |
|
|
TWL6040_HFDRVENA | TWL6040_HFSWENA);
|
|
hfrctl &= ~(TWL6040_HFDACENA | TWL6040_HFPGAENA |
|
|
TWL6040_HFDRVENA | TWL6040_HFSWENA);
|
|
}
|
|
|
|
twl6040_reg_write(twl6040, TWL6040_REG_HFLCTL, hflctl);
|
|
twl6040_reg_write(twl6040, TWL6040_REG_HFRCTL, hfrctl);
|
|
priv->dl2_unmuted = !mute;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static int twl6040_mute_stream(struct snd_soc_dai *dai, int mute, int direction)
|
|
{
|
|
switch (dai->id) {
|
|
case TWL6040_DAI_LEGACY:
|
|
twl6040_mute_path(dai->component, TWL6040_DAI_DL1, mute);
|
|
twl6040_mute_path(dai->component, TWL6040_DAI_DL2, mute);
|
|
break;
|
|
case TWL6040_DAI_DL1:
|
|
case TWL6040_DAI_DL2:
|
|
twl6040_mute_path(dai->component, dai->id, mute);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct snd_soc_dai_ops twl6040_dai_ops = {
|
|
.startup = twl6040_startup,
|
|
.hw_params = twl6040_hw_params,
|
|
.prepare = twl6040_prepare,
|
|
.set_sysclk = twl6040_set_dai_sysclk,
|
|
.mute_stream = twl6040_mute_stream,
|
|
.no_capture_mute = 1,
|
|
};
|
|
|
|
static struct snd_soc_dai_driver twl6040_dai[] = {
|
|
{
|
|
.name = "twl6040-legacy",
|
|
.id = TWL6040_DAI_LEGACY,
|
|
.playback = {
|
|
.stream_name = "Legacy Playback",
|
|
.channels_min = 1,
|
|
.channels_max = 5,
|
|
.rates = TWL6040_RATES,
|
|
.formats = TWL6040_FORMATS,
|
|
},
|
|
.capture = {
|
|
.stream_name = "Legacy Capture",
|
|
.channels_min = 1,
|
|
.channels_max = 2,
|
|
.rates = TWL6040_RATES,
|
|
.formats = TWL6040_FORMATS,
|
|
},
|
|
.ops = &twl6040_dai_ops,
|
|
},
|
|
{
|
|
.name = "twl6040-ul",
|
|
.id = TWL6040_DAI_UL,
|
|
.capture = {
|
|
.stream_name = "Capture",
|
|
.channels_min = 1,
|
|
.channels_max = 2,
|
|
.rates = TWL6040_RATES,
|
|
.formats = TWL6040_FORMATS,
|
|
},
|
|
.ops = &twl6040_dai_ops,
|
|
},
|
|
{
|
|
.name = "twl6040-dl1",
|
|
.id = TWL6040_DAI_DL1,
|
|
.playback = {
|
|
.stream_name = "Headset Playback",
|
|
.channels_min = 1,
|
|
.channels_max = 2,
|
|
.rates = TWL6040_RATES,
|
|
.formats = TWL6040_FORMATS,
|
|
},
|
|
.ops = &twl6040_dai_ops,
|
|
},
|
|
{
|
|
.name = "twl6040-dl2",
|
|
.id = TWL6040_DAI_DL2,
|
|
.playback = {
|
|
.stream_name = "Handsfree Playback",
|
|
.channels_min = 1,
|
|
.channels_max = 2,
|
|
.rates = TWL6040_RATES,
|
|
.formats = TWL6040_FORMATS,
|
|
},
|
|
.ops = &twl6040_dai_ops,
|
|
},
|
|
{
|
|
.name = "twl6040-vib",
|
|
.id = TWL6040_DAI_VIB,
|
|
.playback = {
|
|
.stream_name = "Vibra Playback",
|
|
.channels_min = 1,
|
|
.channels_max = 1,
|
|
.rates = SNDRV_PCM_RATE_CONTINUOUS,
|
|
.formats = TWL6040_FORMATS,
|
|
},
|
|
.ops = &twl6040_dai_ops,
|
|
},
|
|
};
|
|
|
|
static int twl6040_probe(struct snd_soc_component *component)
|
|
{
|
|
struct twl6040_data *priv;
|
|
struct platform_device *pdev = to_platform_device(component->dev);
|
|
int ret = 0;
|
|
|
|
priv = devm_kzalloc(component->dev, sizeof(*priv), GFP_KERNEL);
|
|
if (priv == NULL)
|
|
return -ENOMEM;
|
|
|
|
snd_soc_component_set_drvdata(component, priv);
|
|
|
|
priv->component = component;
|
|
|
|
priv->plug_irq = platform_get_irq(pdev, 0);
|
|
if (priv->plug_irq < 0)
|
|
return priv->plug_irq;
|
|
|
|
INIT_DELAYED_WORK(&priv->hs_jack.work, twl6040_accessory_work);
|
|
|
|
mutex_init(&priv->mutex);
|
|
|
|
ret = request_threaded_irq(priv->plug_irq, NULL,
|
|
twl6040_audio_handler,
|
|
IRQF_NO_SUSPEND | IRQF_ONESHOT,
|
|
"twl6040_irq_plug", component);
|
|
if (ret) {
|
|
dev_err(component->dev, "PLUG IRQ request failed: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
snd_soc_component_force_bias_level(component, SND_SOC_BIAS_STANDBY);
|
|
twl6040_init_chip(component);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void twl6040_remove(struct snd_soc_component *component)
|
|
{
|
|
struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
|
|
|
|
free_irq(priv->plug_irq, component);
|
|
}
|
|
|
|
static const struct snd_soc_component_driver soc_component_dev_twl6040 = {
|
|
.probe = twl6040_probe,
|
|
.remove = twl6040_remove,
|
|
.read = twl6040_read,
|
|
.write = twl6040_write,
|
|
.set_bias_level = twl6040_set_bias_level,
|
|
.controls = twl6040_snd_controls,
|
|
.num_controls = ARRAY_SIZE(twl6040_snd_controls),
|
|
.dapm_widgets = twl6040_dapm_widgets,
|
|
.num_dapm_widgets = ARRAY_SIZE(twl6040_dapm_widgets),
|
|
.dapm_routes = intercon,
|
|
.num_dapm_routes = ARRAY_SIZE(intercon),
|
|
.suspend_bias_off = 1,
|
|
.idle_bias_on = 1,
|
|
.endianness = 1,
|
|
};
|
|
|
|
static int twl6040_codec_probe(struct platform_device *pdev)
|
|
{
|
|
return devm_snd_soc_register_component(&pdev->dev,
|
|
&soc_component_dev_twl6040,
|
|
twl6040_dai, ARRAY_SIZE(twl6040_dai));
|
|
}
|
|
|
|
static struct platform_driver twl6040_codec_driver = {
|
|
.driver = {
|
|
.name = "twl6040-codec",
|
|
},
|
|
.probe = twl6040_codec_probe,
|
|
};
|
|
|
|
module_platform_driver(twl6040_codec_driver);
|
|
|
|
MODULE_DESCRIPTION("ASoC TWL6040 codec driver");
|
|
MODULE_AUTHOR("Misael Lopez Cruz");
|
|
MODULE_LICENSE("GPL");
|