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688 lines
17 KiB
688 lines
17 KiB
// SPDX-License-Identifier: GPL-2.0 |
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// |
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// Driver for the Texas Instruments TAS2764 CODEC |
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// Copyright (C) 2020 Texas Instruments Inc. |
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#include <linux/module.h> |
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#include <linux/moduleparam.h> |
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#include <linux/err.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/i2c.h> |
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#include <linux/gpio.h> |
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#include <linux/gpio/consumer.h> |
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#include <linux/regulator/consumer.h> |
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#include <linux/regmap.h> |
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#include <linux/of.h> |
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#include <linux/of_gpio.h> |
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#include <linux/slab.h> |
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#include <sound/soc.h> |
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#include <sound/pcm.h> |
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#include <sound/pcm_params.h> |
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#include <sound/initval.h> |
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#include <sound/tlv.h> |
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#include "tas2764.h" |
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struct tas2764_priv { |
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struct snd_soc_component *component; |
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struct gpio_desc *reset_gpio; |
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struct gpio_desc *sdz_gpio; |
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struct regmap *regmap; |
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struct device *dev; |
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int v_sense_slot; |
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int i_sense_slot; |
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}; |
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static void tas2764_reset(struct tas2764_priv *tas2764) |
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{ |
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if (tas2764->reset_gpio) { |
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gpiod_set_value_cansleep(tas2764->reset_gpio, 0); |
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msleep(20); |
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gpiod_set_value_cansleep(tas2764->reset_gpio, 1); |
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} |
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snd_soc_component_write(tas2764->component, TAS2764_SW_RST, |
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TAS2764_RST); |
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} |
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static int tas2764_set_bias_level(struct snd_soc_component *component, |
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enum snd_soc_bias_level level) |
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{ |
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struct tas2764_priv *tas2764 = snd_soc_component_get_drvdata(component); |
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switch (level) { |
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case SND_SOC_BIAS_ON: |
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snd_soc_component_update_bits(component, TAS2764_PWR_CTRL, |
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TAS2764_PWR_CTRL_MASK, |
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TAS2764_PWR_CTRL_ACTIVE); |
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break; |
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case SND_SOC_BIAS_STANDBY: |
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case SND_SOC_BIAS_PREPARE: |
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snd_soc_component_update_bits(component, TAS2764_PWR_CTRL, |
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TAS2764_PWR_CTRL_MASK, |
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TAS2764_PWR_CTRL_MUTE); |
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break; |
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case SND_SOC_BIAS_OFF: |
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snd_soc_component_update_bits(component, TAS2764_PWR_CTRL, |
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TAS2764_PWR_CTRL_MASK, |
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TAS2764_PWR_CTRL_SHUTDOWN); |
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break; |
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default: |
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dev_err(tas2764->dev, |
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"wrong power level setting %d\n", level); |
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return -EINVAL; |
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} |
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return 0; |
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} |
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#ifdef CONFIG_PM |
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static int tas2764_codec_suspend(struct snd_soc_component *component) |
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{ |
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struct tas2764_priv *tas2764 = snd_soc_component_get_drvdata(component); |
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int ret; |
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ret = snd_soc_component_update_bits(component, TAS2764_PWR_CTRL, |
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TAS2764_PWR_CTRL_MASK, |
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TAS2764_PWR_CTRL_SHUTDOWN); |
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if (ret < 0) |
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return ret; |
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if (tas2764->sdz_gpio) |
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gpiod_set_value_cansleep(tas2764->sdz_gpio, 0); |
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regcache_cache_only(tas2764->regmap, true); |
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regcache_mark_dirty(tas2764->regmap); |
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return 0; |
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} |
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static int tas2764_codec_resume(struct snd_soc_component *component) |
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{ |
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struct tas2764_priv *tas2764 = snd_soc_component_get_drvdata(component); |
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int ret; |
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if (tas2764->sdz_gpio) |
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gpiod_set_value_cansleep(tas2764->sdz_gpio, 1); |
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ret = snd_soc_component_update_bits(component, TAS2764_PWR_CTRL, |
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TAS2764_PWR_CTRL_MASK, |
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TAS2764_PWR_CTRL_ACTIVE); |
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if (ret < 0) |
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return ret; |
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regcache_cache_only(tas2764->regmap, false); |
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return regcache_sync(tas2764->regmap); |
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} |
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#else |
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#define tas2764_codec_suspend NULL |
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#define tas2764_codec_resume NULL |
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#endif |
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static const char * const tas2764_ASI1_src[] = { |
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"I2C offset", "Left", "Right", "LeftRightDiv2", |
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}; |
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static SOC_ENUM_SINGLE_DECL( |
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tas2764_ASI1_src_enum, TAS2764_TDM_CFG2, 4, tas2764_ASI1_src); |
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static const struct snd_kcontrol_new tas2764_asi1_mux = |
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SOC_DAPM_ENUM("ASI1 Source", tas2764_ASI1_src_enum); |
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static int tas2764_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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struct tas2764_priv *tas2764 = snd_soc_component_get_drvdata(component); |
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int ret; |
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switch (event) { |
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case SND_SOC_DAPM_POST_PMU: |
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ret = snd_soc_component_update_bits(component, TAS2764_PWR_CTRL, |
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TAS2764_PWR_CTRL_MASK, |
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TAS2764_PWR_CTRL_MUTE); |
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break; |
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case SND_SOC_DAPM_PRE_PMD: |
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ret = snd_soc_component_update_bits(component, TAS2764_PWR_CTRL, |
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TAS2764_PWR_CTRL_MASK, |
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TAS2764_PWR_CTRL_SHUTDOWN); |
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break; |
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default: |
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dev_err(tas2764->dev, "Unsupported event\n"); |
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return -EINVAL; |
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} |
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if (ret < 0) |
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return ret; |
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return 0; |
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} |
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static const struct snd_kcontrol_new isense_switch = |
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SOC_DAPM_SINGLE("Switch", TAS2764_PWR_CTRL, TAS2764_ISENSE_POWER_EN, 1, 1); |
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static const struct snd_kcontrol_new vsense_switch = |
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SOC_DAPM_SINGLE("Switch", TAS2764_PWR_CTRL, TAS2764_VSENSE_POWER_EN, 1, 1); |
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static const struct snd_soc_dapm_widget tas2764_dapm_widgets[] = { |
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SND_SOC_DAPM_AIF_IN("ASI1", "ASI1 Playback", 0, SND_SOC_NOPM, 0, 0), |
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SND_SOC_DAPM_MUX("ASI1 Sel", SND_SOC_NOPM, 0, 0, &tas2764_asi1_mux), |
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SND_SOC_DAPM_SWITCH("ISENSE", TAS2764_PWR_CTRL, TAS2764_ISENSE_POWER_EN, |
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1, &isense_switch), |
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SND_SOC_DAPM_SWITCH("VSENSE", TAS2764_PWR_CTRL, TAS2764_VSENSE_POWER_EN, |
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1, &vsense_switch), |
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SND_SOC_DAPM_DAC_E("DAC", NULL, SND_SOC_NOPM, 0, 0, tas2764_dac_event, |
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SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), |
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SND_SOC_DAPM_OUTPUT("OUT"), |
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SND_SOC_DAPM_SIGGEN("VMON"), |
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SND_SOC_DAPM_SIGGEN("IMON") |
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}; |
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static const struct snd_soc_dapm_route tas2764_audio_map[] = { |
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{"ASI1 Sel", "I2C offset", "ASI1"}, |
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{"ASI1 Sel", "Left", "ASI1"}, |
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{"ASI1 Sel", "Right", "ASI1"}, |
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{"ASI1 Sel", "LeftRightDiv2", "ASI1"}, |
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{"DAC", NULL, "ASI1 Sel"}, |
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{"OUT", NULL, "DAC"}, |
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{"ISENSE", "Switch", "IMON"}, |
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{"VSENSE", "Switch", "VMON"}, |
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}; |
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static int tas2764_mute(struct snd_soc_dai *dai, int mute, int direction) |
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{ |
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struct snd_soc_component *component = dai->component; |
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int ret; |
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ret = snd_soc_component_update_bits(component, TAS2764_PWR_CTRL, |
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TAS2764_PWR_CTRL_MASK, |
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mute ? TAS2764_PWR_CTRL_MUTE : 0); |
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if (ret < 0) |
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return ret; |
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return 0; |
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} |
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static int tas2764_set_bitwidth(struct tas2764_priv *tas2764, int bitwidth) |
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{ |
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struct snd_soc_component *component = tas2764->component; |
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int sense_en; |
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int val; |
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int ret; |
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switch (bitwidth) { |
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case SNDRV_PCM_FORMAT_S16_LE: |
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ret = snd_soc_component_update_bits(component, |
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TAS2764_TDM_CFG2, |
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TAS2764_TDM_CFG2_RXW_MASK, |
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TAS2764_TDM_CFG2_RXW_16BITS); |
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break; |
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case SNDRV_PCM_FORMAT_S24_LE: |
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ret = snd_soc_component_update_bits(component, |
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TAS2764_TDM_CFG2, |
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TAS2764_TDM_CFG2_RXW_MASK, |
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TAS2764_TDM_CFG2_RXW_24BITS); |
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break; |
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case SNDRV_PCM_FORMAT_S32_LE: |
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ret = snd_soc_component_update_bits(component, |
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TAS2764_TDM_CFG2, |
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TAS2764_TDM_CFG2_RXW_MASK, |
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TAS2764_TDM_CFG2_RXW_32BITS); |
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break; |
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default: |
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return -EINVAL; |
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} |
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if (ret < 0) |
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return ret; |
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val = snd_soc_component_read(tas2764->component, TAS2764_PWR_CTRL); |
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if (val < 0) |
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return val; |
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if (val & (1 << TAS2764_VSENSE_POWER_EN)) |
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sense_en = 0; |
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else |
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sense_en = TAS2764_TDM_CFG5_VSNS_ENABLE; |
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ret = snd_soc_component_update_bits(tas2764->component, TAS2764_TDM_CFG5, |
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TAS2764_TDM_CFG5_VSNS_ENABLE, |
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sense_en); |
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if (ret < 0) |
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return ret; |
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if (val & (1 << TAS2764_ISENSE_POWER_EN)) |
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sense_en = 0; |
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else |
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sense_en = TAS2764_TDM_CFG6_ISNS_ENABLE; |
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ret = snd_soc_component_update_bits(tas2764->component, TAS2764_TDM_CFG6, |
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TAS2764_TDM_CFG6_ISNS_ENABLE, |
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sense_en); |
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if (ret < 0) |
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return ret; |
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return 0; |
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} |
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static int tas2764_set_samplerate(struct tas2764_priv *tas2764, int samplerate) |
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{ |
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struct snd_soc_component *component = tas2764->component; |
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int ramp_rate_val; |
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int ret; |
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switch (samplerate) { |
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case 48000: |
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ramp_rate_val = TAS2764_TDM_CFG0_SMP_48KHZ | |
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TAS2764_TDM_CFG0_44_1_48KHZ; |
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break; |
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case 44100: |
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ramp_rate_val = TAS2764_TDM_CFG0_SMP_44_1KHZ | |
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TAS2764_TDM_CFG0_44_1_48KHZ; |
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break; |
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case 96000: |
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ramp_rate_val = TAS2764_TDM_CFG0_SMP_48KHZ | |
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TAS2764_TDM_CFG0_88_2_96KHZ; |
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break; |
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case 88200: |
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ramp_rate_val = TAS2764_TDM_CFG0_SMP_44_1KHZ | |
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TAS2764_TDM_CFG0_88_2_96KHZ; |
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break; |
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default: |
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return -EINVAL; |
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} |
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ret = snd_soc_component_update_bits(component, TAS2764_TDM_CFG0, |
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TAS2764_TDM_CFG0_SMP_MASK | |
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TAS2764_TDM_CFG0_MASK, |
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ramp_rate_val); |
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if (ret < 0) |
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return ret; |
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return 0; |
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} |
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static int tas2764_hw_params(struct snd_pcm_substream *substream, |
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struct snd_pcm_hw_params *params, |
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struct snd_soc_dai *dai) |
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{ |
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struct snd_soc_component *component = dai->component; |
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struct tas2764_priv *tas2764 = snd_soc_component_get_drvdata(component); |
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int ret; |
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ret = tas2764_set_bitwidth(tas2764, params_format(params)); |
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if (ret < 0) |
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return ret; |
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return tas2764_set_samplerate(tas2764, params_rate(params)); |
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} |
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static int tas2764_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) |
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{ |
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struct snd_soc_component *component = dai->component; |
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struct tas2764_priv *tas2764 = snd_soc_component_get_drvdata(component); |
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u8 tdm_rx_start_slot = 0, asi_cfg_1 = 0; |
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int iface; |
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int ret; |
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switch (fmt & SND_SOC_DAIFMT_INV_MASK) { |
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case SND_SOC_DAIFMT_NB_NF: |
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asi_cfg_1 = TAS2764_TDM_CFG1_RX_RISING; |
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break; |
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case SND_SOC_DAIFMT_IB_NF: |
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asi_cfg_1 = TAS2764_TDM_CFG1_RX_FALLING; |
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break; |
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default: |
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dev_err(tas2764->dev, "ASI format Inverse is not found\n"); |
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return -EINVAL; |
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} |
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ret = snd_soc_component_update_bits(component, TAS2764_TDM_CFG1, |
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TAS2764_TDM_CFG1_RX_MASK, |
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asi_cfg_1); |
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if (ret < 0) |
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return ret; |
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switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { |
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case SND_SOC_DAIFMT_I2S: |
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case SND_SOC_DAIFMT_DSP_A: |
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iface = TAS2764_TDM_CFG2_SCFG_I2S; |
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tdm_rx_start_slot = 1; |
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break; |
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case SND_SOC_DAIFMT_DSP_B: |
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case SND_SOC_DAIFMT_LEFT_J: |
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iface = TAS2764_TDM_CFG2_SCFG_LEFT_J; |
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tdm_rx_start_slot = 0; |
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break; |
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default: |
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dev_err(tas2764->dev, |
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"DAI Format is not found, fmt=0x%x\n", fmt); |
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return -EINVAL; |
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} |
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ret = snd_soc_component_update_bits(component, TAS2764_TDM_CFG1, |
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TAS2764_TDM_CFG1_MASK, |
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(tdm_rx_start_slot << TAS2764_TDM_CFG1_51_SHIFT)); |
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if (ret < 0) |
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return ret; |
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ret = snd_soc_component_update_bits(component, TAS2764_TDM_CFG2, |
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TAS2764_TDM_CFG2_SCFG_MASK, iface); |
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if (ret < 0) |
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return ret; |
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return 0; |
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} |
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static int tas2764_set_dai_tdm_slot(struct snd_soc_dai *dai, |
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unsigned int tx_mask, |
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unsigned int rx_mask, |
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int slots, int slot_width) |
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{ |
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struct snd_soc_component *component = dai->component; |
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struct tas2764_priv *tas2764 = snd_soc_component_get_drvdata(component); |
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int left_slot, right_slot; |
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int slots_cfg; |
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int slot_size; |
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int ret; |
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if (tx_mask == 0 || rx_mask != 0) |
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return -EINVAL; |
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if (slots == 1) { |
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if (tx_mask != 1) |
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return -EINVAL; |
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left_slot = 0; |
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right_slot = 0; |
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} else { |
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left_slot = __ffs(tx_mask); |
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tx_mask &= ~(1 << left_slot); |
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if (tx_mask == 0) { |
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right_slot = left_slot; |
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} else { |
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right_slot = __ffs(tx_mask); |
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tx_mask &= ~(1 << right_slot); |
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} |
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} |
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if (tx_mask != 0 || left_slot >= slots || right_slot >= slots) |
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return -EINVAL; |
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slots_cfg = (right_slot << TAS2764_TDM_CFG3_RXS_SHIFT) | left_slot; |
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ret = snd_soc_component_write(component, TAS2764_TDM_CFG3, slots_cfg); |
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if (ret) |
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return ret; |
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switch (slot_width) { |
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case 16: |
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slot_size = TAS2764_TDM_CFG2_RXS_16BITS; |
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break; |
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case 24: |
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slot_size = TAS2764_TDM_CFG2_RXS_24BITS; |
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break; |
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case 32: |
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slot_size = TAS2764_TDM_CFG2_RXS_32BITS; |
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break; |
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default: |
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return -EINVAL; |
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} |
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ret = snd_soc_component_update_bits(component, TAS2764_TDM_CFG2, |
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TAS2764_TDM_CFG2_RXS_MASK, |
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slot_size); |
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if (ret < 0) |
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return ret; |
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ret = snd_soc_component_update_bits(component, TAS2764_TDM_CFG5, |
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TAS2764_TDM_CFG5_50_MASK, |
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tas2764->v_sense_slot); |
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if (ret < 0) |
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return ret; |
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ret = snd_soc_component_update_bits(component, TAS2764_TDM_CFG6, |
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TAS2764_TDM_CFG6_50_MASK, |
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tas2764->i_sense_slot); |
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if (ret < 0) |
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return ret; |
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|
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return 0; |
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} |
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static struct snd_soc_dai_ops tas2764_dai_ops = { |
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.mute_stream = tas2764_mute, |
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.hw_params = tas2764_hw_params, |
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.set_fmt = tas2764_set_fmt, |
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.set_tdm_slot = tas2764_set_dai_tdm_slot, |
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.no_capture_mute = 1, |
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}; |
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#define TAS2764_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ |
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SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE) |
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#define TAS2764_RATES (SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\ |
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SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_88200) |
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|
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static struct snd_soc_dai_driver tas2764_dai_driver[] = { |
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{ |
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.name = "tas2764 ASI1", |
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.id = 0, |
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.playback = { |
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.stream_name = "ASI1 Playback", |
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.channels_min = 2, |
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.channels_max = 2, |
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.rates = TAS2764_RATES, |
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.formats = TAS2764_FORMATS, |
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}, |
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.capture = { |
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.stream_name = "ASI1 Capture", |
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.channels_min = 0, |
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.channels_max = 2, |
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.rates = TAS2764_RATES, |
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.formats = TAS2764_FORMATS, |
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}, |
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.ops = &tas2764_dai_ops, |
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.symmetric_rate = 1, |
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}, |
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}; |
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static int tas2764_codec_probe(struct snd_soc_component *component) |
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{ |
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struct tas2764_priv *tas2764 = snd_soc_component_get_drvdata(component); |
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int ret; |
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tas2764->component = component; |
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|
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if (tas2764->sdz_gpio) |
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gpiod_set_value_cansleep(tas2764->sdz_gpio, 1); |
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tas2764_reset(tas2764); |
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ret = snd_soc_component_update_bits(tas2764->component, TAS2764_TDM_CFG5, |
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TAS2764_TDM_CFG5_VSNS_ENABLE, 0); |
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if (ret < 0) |
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return ret; |
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|
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ret = snd_soc_component_update_bits(tas2764->component, TAS2764_TDM_CFG6, |
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TAS2764_TDM_CFG6_ISNS_ENABLE, 0); |
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if (ret < 0) |
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return ret; |
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|
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ret = snd_soc_component_update_bits(component, TAS2764_PWR_CTRL, |
|
TAS2764_PWR_CTRL_MASK, |
|
TAS2764_PWR_CTRL_MUTE); |
|
if (ret < 0) |
|
return ret; |
|
|
|
return 0; |
|
} |
|
|
|
static DECLARE_TLV_DB_SCALE(tas2764_digital_tlv, 1100, 50, 0); |
|
static DECLARE_TLV_DB_SCALE(tas2764_playback_volume, -10000, 50, 0); |
|
|
|
static const struct snd_kcontrol_new tas2764_snd_controls[] = { |
|
SOC_SINGLE_TLV("Speaker Volume", TAS2764_DVC, 0, |
|
TAS2764_DVC_MAX, 1, tas2764_playback_volume), |
|
SOC_SINGLE_TLV("Amp Gain Volume", TAS2764_CHNL_0, 0, 0x14, 0, |
|
tas2764_digital_tlv), |
|
}; |
|
|
|
static const struct snd_soc_component_driver soc_component_driver_tas2764 = { |
|
.probe = tas2764_codec_probe, |
|
.suspend = tas2764_codec_suspend, |
|
.resume = tas2764_codec_resume, |
|
.set_bias_level = tas2764_set_bias_level, |
|
.controls = tas2764_snd_controls, |
|
.num_controls = ARRAY_SIZE(tas2764_snd_controls), |
|
.dapm_widgets = tas2764_dapm_widgets, |
|
.num_dapm_widgets = ARRAY_SIZE(tas2764_dapm_widgets), |
|
.dapm_routes = tas2764_audio_map, |
|
.num_dapm_routes = ARRAY_SIZE(tas2764_audio_map), |
|
.idle_bias_on = 1, |
|
.endianness = 1, |
|
.non_legacy_dai_naming = 1, |
|
}; |
|
|
|
static const struct reg_default tas2764_reg_defaults[] = { |
|
{ TAS2764_PAGE, 0x00 }, |
|
{ TAS2764_SW_RST, 0x00 }, |
|
{ TAS2764_PWR_CTRL, 0x1a }, |
|
{ TAS2764_DVC, 0x00 }, |
|
{ TAS2764_CHNL_0, 0x00 }, |
|
{ TAS2764_TDM_CFG0, 0x09 }, |
|
{ TAS2764_TDM_CFG1, 0x02 }, |
|
{ TAS2764_TDM_CFG2, 0x0a }, |
|
{ TAS2764_TDM_CFG3, 0x10 }, |
|
{ TAS2764_TDM_CFG5, 0x42 }, |
|
}; |
|
|
|
static const struct regmap_range_cfg tas2764_regmap_ranges[] = { |
|
{ |
|
.range_min = 0, |
|
.range_max = 1 * 128, |
|
.selector_reg = TAS2764_PAGE, |
|
.selector_mask = 0xff, |
|
.selector_shift = 0, |
|
.window_start = 0, |
|
.window_len = 128, |
|
}, |
|
}; |
|
|
|
static const struct regmap_config tas2764_i2c_regmap = { |
|
.reg_bits = 8, |
|
.val_bits = 8, |
|
.reg_defaults = tas2764_reg_defaults, |
|
.num_reg_defaults = ARRAY_SIZE(tas2764_reg_defaults), |
|
.cache_type = REGCACHE_RBTREE, |
|
.ranges = tas2764_regmap_ranges, |
|
.num_ranges = ARRAY_SIZE(tas2764_regmap_ranges), |
|
.max_register = 1 * 128, |
|
}; |
|
|
|
static int tas2764_parse_dt(struct device *dev, struct tas2764_priv *tas2764) |
|
{ |
|
int ret = 0; |
|
|
|
tas2764->reset_gpio = devm_gpiod_get_optional(tas2764->dev, "reset", |
|
GPIOD_OUT_HIGH); |
|
if (IS_ERR(tas2764->reset_gpio)) { |
|
if (PTR_ERR(tas2764->reset_gpio) == -EPROBE_DEFER) { |
|
tas2764->reset_gpio = NULL; |
|
return -EPROBE_DEFER; |
|
} |
|
} |
|
|
|
tas2764->sdz_gpio = devm_gpiod_get_optional(dev, "shutdown", GPIOD_OUT_HIGH); |
|
if (IS_ERR(tas2764->sdz_gpio)) { |
|
if (PTR_ERR(tas2764->sdz_gpio) == -EPROBE_DEFER) |
|
return -EPROBE_DEFER; |
|
|
|
tas2764->sdz_gpio = NULL; |
|
} |
|
|
|
ret = fwnode_property_read_u32(dev->fwnode, "ti,imon-slot-no", |
|
&tas2764->i_sense_slot); |
|
if (ret) |
|
tas2764->i_sense_slot = 0; |
|
|
|
ret = fwnode_property_read_u32(dev->fwnode, "ti,vmon-slot-no", |
|
&tas2764->v_sense_slot); |
|
if (ret) |
|
tas2764->v_sense_slot = 2; |
|
|
|
return 0; |
|
} |
|
|
|
static int tas2764_i2c_probe(struct i2c_client *client, |
|
const struct i2c_device_id *id) |
|
{ |
|
struct tas2764_priv *tas2764; |
|
int result; |
|
|
|
tas2764 = devm_kzalloc(&client->dev, sizeof(struct tas2764_priv), |
|
GFP_KERNEL); |
|
if (!tas2764) |
|
return -ENOMEM; |
|
|
|
tas2764->dev = &client->dev; |
|
i2c_set_clientdata(client, tas2764); |
|
dev_set_drvdata(&client->dev, tas2764); |
|
|
|
tas2764->regmap = devm_regmap_init_i2c(client, &tas2764_i2c_regmap); |
|
if (IS_ERR(tas2764->regmap)) { |
|
result = PTR_ERR(tas2764->regmap); |
|
dev_err(&client->dev, "Failed to allocate register map: %d\n", |
|
result); |
|
return result; |
|
} |
|
|
|
if (client->dev.of_node) { |
|
result = tas2764_parse_dt(&client->dev, tas2764); |
|
if (result) { |
|
dev_err(tas2764->dev, "%s: Failed to parse devicetree\n", |
|
__func__); |
|
return result; |
|
} |
|
} |
|
|
|
return devm_snd_soc_register_component(tas2764->dev, |
|
&soc_component_driver_tas2764, |
|
tas2764_dai_driver, |
|
ARRAY_SIZE(tas2764_dai_driver)); |
|
} |
|
|
|
static const struct i2c_device_id tas2764_i2c_id[] = { |
|
{ "tas2764", 0}, |
|
{ } |
|
}; |
|
MODULE_DEVICE_TABLE(i2c, tas2764_i2c_id); |
|
|
|
#if defined(CONFIG_OF) |
|
static const struct of_device_id tas2764_of_match[] = { |
|
{ .compatible = "ti,tas2764" }, |
|
{}, |
|
}; |
|
MODULE_DEVICE_TABLE(of, tas2764_of_match); |
|
#endif |
|
|
|
static struct i2c_driver tas2764_i2c_driver = { |
|
.driver = { |
|
.name = "tas2764", |
|
.of_match_table = of_match_ptr(tas2764_of_match), |
|
}, |
|
.probe = tas2764_i2c_probe, |
|
.id_table = tas2764_i2c_id, |
|
}; |
|
module_i2c_driver(tas2764_i2c_driver); |
|
|
|
MODULE_AUTHOR("Dan Murphy <[email protected]>"); |
|
MODULE_DESCRIPTION("TAS2764 I2C Smart Amplifier driver"); |
|
MODULE_LICENSE("GPL v2");
|
|
|