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Message-ID: <3381c06a-d765-da27-ea88-d7ffea97d0c2@ti.com>
Date: Tue, 10 Sep 2019 08:58:51 -0500
From: Dan Murphy <dmurphy@...com>
To: <shifu0704@...ndersoft.com>, <lgirdwood@...il.com>,
<broonie@...nel.org>, <perex@...ex.cz>, <tiwai@...e.com>,
<linux-kernel@...r.kernel.org>, <alsa-devel@...a-project.org>
CC: <navada@...com>
Subject: Re: [PATCH] tas2770: add tas2770 smart PA kernel driver
Shi
On 9/6/19 2:06 AM, shifu0704@...ndersoft.com wrote:
> From: Frank Shi <shifu0704@...ndersoft.com>
>
> add tas2770 smart PA kernel driver
>
> Signed-off-by: Frank Shi <shifu0704@...ndersoft.com>
> ---
> sound/soc/codecs/Kconfig | 5 +
> sound/soc/codecs/Makefile | 2 +
> sound/soc/codecs/tas2770.c | 1103 ++++++++++++++++++++++++++++++++++++++++++++
> sound/soc/codecs/tas2770.h | 173 +++++++
> 4 files changed, 1283 insertions(+)
> create mode 100644 sound/soc/codecs/tas2770.c
> create mode 100644 sound/soc/codecs/tas2770.h
>
> diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
> index 8f3e787..cc92da3 100644
> --- a/sound/soc/codecs/Kconfig
> +++ b/sound/soc/codecs/Kconfig
> @@ -111,6 +111,7 @@ config SND_SOC_ALL_CODECS
> select SND_SOC_STAC9766 if SND_SOC_AC97_BUS
> select SND_SOC_STI_SAS
> select SND_SOC_TAS2552 if I2C
> + select SND_SOC_TAS2770 if I2C
> select SND_SOC_TAS5086 if I2C
> select SND_SOC_TAS571X if I2C
> select SND_SOC_TFA9879 if I2C
> @@ -652,6 +653,10 @@ config SND_SOC_TAS2552
> tristate "Texas Instruments TAS2552 Mono Audio amplifier"
> depends on I2C
>
> +config SND_SOC_TAS2770
> + tristate "Texas Instruments TAS2770 speaker amplifier"
> + depends on I2C
> +
> config SND_SOC_TAS5086
> tristate "Texas Instruments TAS5086 speaker amplifier"
> depends on I2C
> diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile
> index 5305cc6..1b58d08 100644
> --- a/sound/soc/codecs/Makefile
> +++ b/sound/soc/codecs/Makefile
> @@ -116,6 +116,7 @@ snd-soc-stac9766-objs := stac9766.o
> snd-soc-sti-sas-objs := sti-sas.o
> snd-soc-tas5086-objs := tas5086.o
> snd-soc-tas571x-objs := tas571x.o
> +snd-soc-tas2770-objs := tas2770.o
extra space between = tas2770.o
> snd-soc-tfa9879-objs := tfa9879.o
> snd-soc-tlv320aic23-objs := tlv320aic23.o
> snd-soc-tlv320aic23-i2c-objs := tlv320aic23-i2c.o
> @@ -332,6 +333,7 @@ obj-$(CONFIG_SND_SOC_STI_SAS) += snd-soc-sti-sas.o
> obj-$(CONFIG_SND_SOC_TAS2552) += snd-soc-tas2552.o
> obj-$(CONFIG_SND_SOC_TAS5086) += snd-soc-tas5086.o
> obj-$(CONFIG_SND_SOC_TAS571X) += snd-soc-tas571x.o
> +obj-$(CONFIG_SND_SOC_TAS2770) += snd-soc-tas2770.o
> obj-$(CONFIG_SND_SOC_TFA9879) += snd-soc-tfa9879.o
> obj-$(CONFIG_SND_SOC_TLV320AIC23) += snd-soc-tlv320aic23.o
> obj-$(CONFIG_SND_SOC_TLV320AIC23_I2C) += snd-soc-tlv320aic23-i2c.o
> diff --git a/sound/soc/codecs/tas2770.c b/sound/soc/codecs/tas2770.c
> new file mode 100644
> index 0000000..9fc0c11
> --- /dev/null
> +++ b/sound/soc/codecs/tas2770.c
> @@ -0,0 +1,1103 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * ALSA SoC Texas Instruments TAS2770 20-W Digital Input Mono Class-D
> + * Audio Amplifier with Speaker I/V Sense
> + *
> + * Copyright (C) 2016-2017 Texas Instruments Incorporated - http://www.ti.com/
> + * Author: Tracy Yi <tracy-yi@...com>
> + * Shi Fu <shifu0704@...ndersoft.com>
> + */
> +
> +#include <linux/module.h>
> +#include <linux/moduleparam.h>
> +#include <linux/err.h>
> +#include <linux/init.h>
> +#include <linux/delay.h>
> +#include <linux/pm.h>
> +#include <linux/i2c.h>
> +#include <linux/gpio.h>
> +#include <linux/pm_runtime.h>
> +#include <linux/regulator/consumer.h>
> +#include <linux/firmware.h>
> +#include <linux/regmap.h>
> +#include <linux/of.h>
> +#include <linux/of_gpio.h>
> +#include <linux/slab.h>
> +#include <sound/soc.h>
> +#include <sound/pcm.h>
> +#include <sound/pcm_params.h>
> +#include <sound/initval.h>
> +#include <sound/tlv.h>
> +
> +#include "tas2770.h"
> +
> +#define TAS2770_MDELAY 0xFFFFFFFE
> +#define TAS2770_CHECK_PERIOD 5000 /* 5 second */
> +
> +static void tas2770_hw_reset(struct tas2770_priv *p_tas2770)
> +{
> + if (p_tas2770->mn_reset_gpio) {
> + gpiod_set_value_cansleep(p_tas2770->mn_reset_gpio, 0);
> + msleep(20);
> + gpiod_set_value_cansleep(p_tas2770->mn_reset_gpio, 1);
> + }
> +
> + p_tas2770->mn_current_book = -1;
> + p_tas2770->mn_current_page = -1;
> +}
> +
> +static void tas2770_enable_irq(struct tas2770_priv *p_tas2770, bool enable)
> +{
> + if (enable) {
> + if (p_tas2770->mb_irq_enable)
> + return;
> +
> + if (gpio_is_valid(p_tas2770->mn_irq))
> + enable_irq(p_tas2770->mn_irq);
> + p_tas2770->mb_irq_enable = true;
> + } else {
> + if (gpio_is_valid(p_tas2770->mn_irq))
> + disable_irq_nosync(p_tas2770->mn_irq);
> + p_tas2770->mb_irq_enable = false;
> + }
> +}
> +
> +static int tas2770_runtime_suspend(struct tas2770_priv *p_tas2770)
> +{
> + p_tas2770->mb_runtime_suspend = true;
> +
> + return 0;
> +}
> +
> +static int tas2770_runtime_resume(struct tas2770_priv *p_tas2770)
> +{
> +
> + p_tas2770->mb_runtime_suspend = false;
> +
> + return 0;
> +}
> +
> +static int tas2770_regmap_write(struct tas2770_priv *p_tas2770,
> + unsigned int reg, unsigned int value)
Why are you calling this function regmap_write when it uses the
snd_soc_component_write?
And why do we need this function at all? For retries? Does every call
to write or read need to have a retry?
I am think you can eliminate this function and just use the
snd_soc_component_read/write directly
> +{
> + int nResult = 0;
> + int retry_count = TAS2770_I2C_RETRY_COUNT;
> +
> + while (retry_count--) {
> + nResult = snd_soc_component_write(p_tas2770->component, reg,
> + value);
> + if (!nResult)
> + break;
> + msleep(20);
> + }
> + if (retry_count == -1)
> + return ERROR_I2C_FAILED;
> + else
> + return 0;
> +}
> +
> +static int tas2770_regmap_read(struct tas2770_priv *p_tas2770,
> + unsigned int reg, unsigned int *value)
> +{
> + int nResult = 0;
> + int retry_count = TAS2770_I2C_RETRY_COUNT;
> +
> + while (retry_count--) {
> + nResult = snd_soc_component_read(p_tas2770->component, reg,
> + value);
> + if (!nResult)
> + break;
> +
> + msleep(20);
> + }
> + if (!retry_count)
> + return ERROR_I2C_FAILED;
> +
> + return 0;
> +}
> +
> +static int tas2770_codec_suspend(struct snd_soc_component *component)
> +{
> + struct tas2770_priv *p_tas2770 =
> + snd_soc_component_get_drvdata(component);
> +
> + mutex_lock(&p_tas2770->codec_lock);
> + tas2770_runtime_suspend(p_tas2770);
> + mutex_unlock(&p_tas2770->codec_lock);
> +
> + return 0;
> +}
> +
> +static int tas2770_codec_resume(struct snd_soc_component *component)
> +{
> + struct tas2770_priv *p_tas2770 =
> + snd_soc_component_get_drvdata(component);
> +
> + mutex_lock(&p_tas2770->codec_lock);
> + tas2770_runtime_resume(p_tas2770);
> + mutex_unlock(&p_tas2770->codec_lock);
> +
> + return 0;
> +}
> +
> +static const char * const tas2770_ASI1_src[] = {
> + "I2C offset", "Left", "Right", "LeftRightDiv2",
> +};
> +
> +static SOC_ENUM_SINGLE_DECL(
> + tas2770_ASI1_src_enum, TAS2770_TDM_CFG_REG2,
> + 4, tas2770_ASI1_src);
> +
> +static const struct snd_kcontrol_new tas2770_asi1_mux =
> + SOC_DAPM_ENUM("ASI1 Source", tas2770_ASI1_src_enum);
> +
> +static int tas2770_set_power_state(struct tas2770_priv *p_tas2770, int state)
> +{
> + struct snd_soc_component *component = p_tas2770->component;
> +
> + switch (state) {
> + case TAS2770_POWER_ACTIVE:
> + snd_soc_component_update_bits(component, TAS2770_PWR_CTRL,
> + TAS2770_PWR_CTRL_MASK,
> + TAS2770_PWR_CTRL_ACTIVE);
> + p_tas2770->mn_power_state = TAS2770_POWER_ACTIVE;
> + tas2770_enable_irq(p_tas2770, true);
> + break;
> +
> + case TAS2770_POWER_MUTE:
> + snd_soc_component_update_bits(component, TAS2770_PWR_CTRL,
> + TAS2770_PWR_CTRL_MASK,
> + TAS2770_PWR_CTRL_MUTE);
> + p_tas2770->mn_power_state = TAS2770_POWER_MUTE;
> + break;
> +
> + case TAS2770_POWER_SHUTDOWN:
> + snd_soc_component_update_bits(component, TAS2770_PWR_CTRL,
> + TAS2770_PWR_CTRL_MASK,
> + TAS2770_PWR_CTRL_SHUTDOWN);
> + tas2770_enable_irq(p_tas2770, false);
> + p_tas2770->mn_power_state = TAS2770_POWER_SHUTDOWN;
> + break;
> +
> + default:
> + dev_err(p_tas2770->dev,
> + "wrong power state setting %d\n", state);
> + return -EINVAL;
> + }
> +
> + return 0;
> +}
> +
> +static int tas2770_dac_event(struct snd_soc_dapm_widget *w,
> + struct snd_kcontrol *kcontrol, int event)
> +{
> + struct snd_soc_component *component =
> + snd_soc_dapm_to_component(w->dapm);
> + struct tas2770_priv *p_tas2770 =
> + snd_soc_component_get_drvdata(component);
> + int ret;
> +
> + mutex_lock(&p_tas2770->codec_lock);
> +
> + switch (event) {
> + case SND_SOC_DAPM_POST_PMU:
> + ret = tas2770_set_power_state(p_tas2770,
> + TAS2770_POWER_MUTE);
> + if (ret)
> + goto end;
> + break;
> + case SND_SOC_DAPM_PRE_PMD:
> + ret = tas2770_set_power_state(p_tas2770,
> + TAS2770_POWER_SHUTDOWN);
> + if (ret)
> + goto end;
> + break;
> + default:
> + dev_err(p_tas2770->dev, "Not supported evevt\n");
> + ret = -EINVAL;
> + }
> +
> +end:
> + mutex_unlock(&p_tas2770->codec_lock);
> + return ret;
> +}
> +
> +static const struct snd_kcontrol_new isense_switch =
> + SOC_DAPM_SINGLE("Switch", TAS2770_PWR_CTRL, 3, 1, 1);
> +static const struct snd_kcontrol_new vsense_switch =
> + SOC_DAPM_SINGLE("Switch", TAS2770_PWR_CTRL, 2, 1, 1);
> +
> +static const struct snd_soc_dapm_widget tas2770_dapm_widgets[] = {
> + SND_SOC_DAPM_AIF_IN("ASI1", "ASI1 Playback", 0, SND_SOC_NOPM, 0, 0),
> + SND_SOC_DAPM_MUX("ASI1 Sel", SND_SOC_NOPM, 0, 0,
> + &tas2770_asi1_mux),
> + SND_SOC_DAPM_SWITCH("ISENSE", TAS2770_PWR_CTRL, 3, 1,
> + &isense_switch),
> + SND_SOC_DAPM_SWITCH("VSENSE", TAS2770_PWR_CTRL, 2, 1,
> + &vsense_switch),
> + SND_SOC_DAPM_DAC_E("DAC", NULL, SND_SOC_NOPM, 0, 0, tas2770_dac_event,
> + SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
> + SND_SOC_DAPM_OUTPUT("OUT"),
> + SND_SOC_DAPM_SIGGEN("VMON"),
> + SND_SOC_DAPM_SIGGEN("IMON")
> +};
> +
> +static const struct snd_soc_dapm_route tas2770_audio_map[] = {
> + {"ASI1 Sel", "I2C offset", "ASI1"},
> + {"ASI1 Sel", "Left", "ASI1"},
> + {"ASI1 Sel", "Right", "ASI1"},
> + {"ASI1 Sel", "LeftRightDiv2", "ASI1"},
> + {"DAC", NULL, "ASI1 Sel"},
> + {"OUT", NULL, "DAC"},
> + {"ISENSE", "Switch", "IMON"},
> + {"VSENSE", "Switch", "VMON"},
> +};
> +
> +
extra new line
> +static int tas2770_mute(struct snd_soc_dai *dai, int mute)
> +{
> + struct snd_soc_component *component = dai->component;
> + struct tas2770_priv *p_tas2770 =
> + snd_soc_component_get_drvdata(component);
> + int ret;
> +
> +
extra new line
> + mutex_lock(&p_tas2770->codec_lock);
> + if (mute)
> + ret = tas2770_set_power_state(p_tas2770, TAS2770_POWER_MUTE);
> + else
> + ret = tas2770_set_power_state(p_tas2770, TAS2770_POWER_ACTIVE);
> +
> + mutex_unlock(&p_tas2770->codec_lock);
> + return ret;
> +}
> +
> +static int tas2770_set_slot(struct snd_soc_component *component, int slot_width)
> +{
> + int ret;
> + struct tas2770_priv *p_tas2770 =
> + snd_soc_component_get_drvdata(component);
> +
> + switch (slot_width) {
> + case 16:
> + ret = snd_soc_component_update_bits(component,
> + TAS2770_TDM_CFG_REG2,
> + TAS2770_TDM_CFG_REG2_RXS_MASK,
> + TAS2770_TDM_CFG_REG2_RXS_16BITS);
> + break;
> +
> + case 24:
> + ret = snd_soc_component_update_bits(component,
> + TAS2770_TDM_CFG_REG2,
> + TAS2770_TDM_CFG_REG2_RXS_MASK,
> + TAS2770_TDM_CFG_REG2_RXS_24BITS);
> + break;
> +
> + case 32:
> + ret = snd_soc_component_update_bits(component,
> + TAS2770_TDM_CFG_REG2,
> + TAS2770_TDM_CFG_REG2_RXS_MASK,
> + TAS2770_TDM_CFG_REG2_RXS_32BITS);
> + break;
> +
> + case 0:
> + /* Do not change slot width */
> + ret = 0;
> + break;
> +
> + default:
> + ret = -EINVAL;
> + }
> +
> + if (!ret)
> + p_tas2770->mn_slot_width = slot_width;
> +
> + return ret;
> +}
> +
> +static int tas2770_set_bitwidth(struct tas2770_priv *p_tas2770, int bitwidth)
> +{
> + int ret;
> + struct snd_soc_component *component = p_tas2770->component;
> +
> + switch (bitwidth) {
> + case SNDRV_PCM_FORMAT_S16_LE:
> + ret = snd_soc_component_update_bits(component,
> + TAS2770_TDM_CFG_REG2,
> + TAS2770_TDM_CFG_REG2_RXW_MASK,
> + TAS2770_TDM_CFG_REG2_RXW_16BITS);
> + /* If machine driver did not call set slot width */
> + if (p_tas2770->mn_slot_width == 0)
> + tas2770_set_slot(component, TAS2770_SLOT_16BIT);
> + p_tas2770->mn_v_mon_slot_no = p_tas2770->mn_i_mon_slot_no + 2;
> + break;
> + case SNDRV_PCM_FORMAT_S24_LE:
> + ret = snd_soc_component_update_bits(component,
> + TAS2770_TDM_CFG_REG2,
> + TAS2770_TDM_CFG_REG2_RXW_MASK,
> + TAS2770_TDM_CFG_REG2_RXW_24BITS);
> + if (p_tas2770->mn_slot_width == 0)
> + tas2770_set_slot(component, TAS2770_SLOT_32BIT);
> + p_tas2770->mn_v_mon_slot_no = p_tas2770->mn_i_mon_slot_no + 4;
> + break;
> + case SNDRV_PCM_FORMAT_S32_LE:
> + ret = snd_soc_component_update_bits(component,
> + TAS2770_TDM_CFG_REG2,
> + TAS2770_TDM_CFG_REG2_RXW_MASK,
> + TAS2770_TDM_CFG_REG2_RXW_32BITS);
> + if (p_tas2770->mn_slot_width == 0)
> + tas2770_set_slot(component, TAS2770_SLOT_32BIT);
> + p_tas2770->mn_v_mon_slot_no = p_tas2770->mn_i_mon_slot_no + 4;
> + break;
> +
> + default:
> + return -EINVAL;
> + }
> +
> + p_tas2770->mn_ch_size = bitwidth;
> +
> + ret = snd_soc_component_update_bits(component,
> + TAS2770_TDM_CFG_REG5,
> + TAS2770_TDM_CFG_REG5_VSNS_MASK |
> + TAS2770_TDM_CFG_REG5_50_MASK,
> + TAS2770_TDM_CFG_REG5_VSNS_ENABLE |
> + p_tas2770->mn_v_mon_slot_no);
> + if (ret)
> + goto end;
> + ret = snd_soc_component_update_bits(component,
> + TAS2770_TDM_CFG_REG6,
> + TAS2770_TDM_CFG_REG6_ISNS_MASK |
> + TAS2770_TDM_CFG_REG6_50_MASK,
> + TAS2770_TDM_CFG_REG6_ISNS_ENABLE |
> + p_tas2770->mn_i_mon_slot_no);
> +
> +end:
> + return ret;
> +}
> +
> +static int tas2770_set_samplerate(struct tas2770_priv *p_tas2770,
> + int samplerate)
> +{
> + int ret;
> + struct snd_soc_component *component = p_tas2770->component;
> +
> + switch (samplerate) {
> + case 48000:
> + ret = snd_soc_component_update_bits(component,
> + TAS2770_TDM_CFG_REG0,
> + TAS2770_TDM_CFG_REG0_SMP_MASK,
> + TAS2770_TDM_CFG_REG0_SMP_48KHZ);
> + if (ret)
> + goto end;
> + ret = snd_soc_component_update_bits(component,
> + TAS2770_TDM_CFG_REG0,
> + TAS2770_TDM_CFG_REG0_31_MASK,
> + TAS2770_TDM_CFG_REG0_31_44_1_48KHZ);
> + if (ret)
> + goto end;
> + break;
> + case 44100:
> + ret = snd_soc_component_update_bits(component,
> + TAS2770_TDM_CFG_REG0,
> + TAS2770_TDM_CFG_REG0_SMP_MASK,
> + TAS2770_TDM_CFG_REG0_SMP_44_1KHZ);
> + if (ret)
> + goto end;
> + ret = snd_soc_component_update_bits(component,
> + TAS2770_TDM_CFG_REG0,
> + TAS2770_TDM_CFG_REG0_31_MASK,
> + TAS2770_TDM_CFG_REG0_31_44_1_48KHZ);
> + if (ret)
> + goto end;
> + break;
> + case 96000:
> + ret = snd_soc_component_update_bits(component,
> + TAS2770_TDM_CFG_REG0,
> + TAS2770_TDM_CFG_REG0_SMP_MASK,
> + TAS2770_TDM_CFG_REG0_SMP_48KHZ);
> + if (ret)
> + goto end;
> + ret = snd_soc_component_update_bits(component,
> + TAS2770_TDM_CFG_REG0,
> + TAS2770_TDM_CFG_REG0_31_MASK,
> + TAS2770_TDM_CFG_REG0_31_88_2_96KHZ);
> + break;
> + case 88200:
> + ret = snd_soc_component_update_bits(component,
> + TAS2770_TDM_CFG_REG0,
> + TAS2770_TDM_CFG_REG0_SMP_MASK,
> + TAS2770_TDM_CFG_REG0_SMP_44_1KHZ);
> + if (ret)
> + goto end;
> + ret = snd_soc_component_update_bits(component,
> + TAS2770_TDM_CFG_REG0,
> + TAS2770_TDM_CFG_REG0_31_MASK,
> + TAS2770_TDM_CFG_REG0_31_88_2_96KHZ);
> + break;
> + case 19200:
> + ret = snd_soc_component_update_bits(component,
> + TAS2770_TDM_CFG_REG0,
> + TAS2770_TDM_CFG_REG0_SMP_MASK,
> + TAS2770_TDM_CFG_REG0_SMP_48KHZ);
> + if (ret)
> + goto end;
> + ret = snd_soc_component_update_bits(component,
> + TAS2770_TDM_CFG_REG0,
> + TAS2770_TDM_CFG_REG0_31_MASK,
> + TAS2770_TDM_CFG_REG0_31_176_4_192KHZ);
> + if (ret)
> + goto end;
> + break;
> + case 17640:
> + ret = snd_soc_component_update_bits(component,
> + TAS2770_TDM_CFG_REG0,
> + TAS2770_TDM_CFG_REG0_SMP_MASK,
> + TAS2770_TDM_CFG_REG0_SMP_44_1KHZ);
> + if (ret)
> + goto end;
> + ret = snd_soc_component_update_bits(component,
> + TAS2770_TDM_CFG_REG0,
> + TAS2770_TDM_CFG_REG0_31_MASK,
> + TAS2770_TDM_CFG_REG0_31_176_4_192KHZ);
> + break;
> + default:
> + ret = -EINVAL;
> + }
> +
> +end:
> + if (!ret)
> + p_tas2770->mn_sampling_rate = samplerate;
> + return ret;
> +}
> +
> +static int tas2770_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 tas2770_priv *p_tas2770 =
> + snd_soc_component_get_drvdata(component);
> + int ret;
> +
> + mutex_lock(&p_tas2770->codec_lock);
> +
> + ret = tas2770_set_bitwidth(p_tas2770, params_format(params));
> + if (ret < 0)
> + goto end;
> +
> +
> + ret = tas2770_set_samplerate(p_tas2770, params_rate(params));
> +
> +end:
> + mutex_unlock(&p_tas2770->codec_lock);
> + return ret;
> +}
> +
> +static int tas2770_set_fmt(struct tas2770_priv *p_tas2770, unsigned int fmt)
> +{
> + u8 tdm_rx_start_slot = 0, asi_cfg_1 = 0;
> + int ret;
> + int value = 0;
> + struct snd_soc_component *component = p_tas2770->component;
> +
> + switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
> + case SND_SOC_DAIFMT_CBS_CFS:
> + break;
> + default:
> + dev_err(p_tas2770->dev, "ASI format master is not found\n");
> + ret = -EINVAL;
> + return ret;
> + }
> +
> + switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
> + case SND_SOC_DAIFMT_NB_NF:
> + asi_cfg_1 |= TAS2770_TDM_CFG_REG1_RX_RSING;
> + break;
> + case SND_SOC_DAIFMT_IB_NF:
> + asi_cfg_1 |= TAS2770_TDM_CFG_REG1_RX_FALING;
> + break;
> + default:
> + dev_err(p_tas2770->dev, "ASI format Inverse is not found\n");
> + ret = -EINVAL;
> + return ret;
> + }
> +
> + ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG1,
> + TAS2770_TDM_CFG_REG1_RX_MASK,
> + asi_cfg_1);
> + if (ret)
> + return ret;
> +
> + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
> + case (SND_SOC_DAIFMT_I2S):
> + tdm_rx_start_slot = 1;
> + break;
> + case (SND_SOC_DAIFMT_DSP_A):
> + case (SND_SOC_DAIFMT_DSP_B):
> + tdm_rx_start_slot = 1;
> + break;
> + case (SND_SOC_DAIFMT_LEFT_J):
> + tdm_rx_start_slot = 0;
> + break;
> + default:
> + dev_err(p_tas2770->dev,
> + "DAI Format is not found, fmt=0x%x\n", fmt);
> + ret = -EINVAL;
> + return ret;
> + }
> +
> + ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG1,
> + TAS2770_TDM_CFG_REG1_MASK,
> + (tdm_rx_start_slot << TAS2770_TDM_CFG_REG1_51_SHIFT));
> + if (ret)
> + return ret;
> + ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG3,
> + TAS2770_TDM_CFG_REG3_30_MASK,
> + (p_tas2770->mn_left_slot <<
> + TAS2770_TDM_CFG_REG3_30_SHIFT));
> + if (ret)
> + return ret;
> + ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG3,
> + TAS2770_TDM_CFG_REG3_RXS_MASK,
> + (p_tas2770->mn_right_slot <<
> + TAS2770_TDM_CFG_REG3_RXS_SHIFT));
> + if (ret)
> + return ret;
> +
> + value = snd_soc_component_read32(component, TAS2770_TDM_CFG_REG3);
> +
> + p_tas2770->mn_asi_format = fmt;
> +
> + return 0;
> +}
> +
> +static int tas2770_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
> +{
> + struct snd_soc_component *component = dai->component;
> + struct tas2770_priv *p_tas2770 =
> + snd_soc_component_get_drvdata(component);
> + int ret;
> +
> + mutex_lock(&p_tas2770->codec_lock);
> +
> + ret = tas2770_set_fmt(p_tas2770, fmt);
> +
> + mutex_unlock(&p_tas2770->codec_lock);
> + return ret;
> +}
> +
> +static int tas2770_set_dai_tdm_slot(struct snd_soc_dai *dai,
> + unsigned int tx_mask,
> + unsigned int rx_mask,
> + int slots, int slot_width)
> +{
> + int ret;
> + struct snd_soc_component *component = dai->component;
> + struct tas2770_priv *p_tas2770 =
> + snd_soc_component_get_drvdata(component);
> +
> + mutex_lock(&p_tas2770->codec_lock);
> + ret = tas2770_set_slot(component, slot_width);
> + mutex_unlock(&p_tas2770->codec_lock);
> +
> + return ret;
> +}
> +
> +static struct snd_soc_dai_ops tas2770_dai_ops = {
> + .digital_mute = tas2770_mute,
> + .hw_params = tas2770_hw_params,
> + .set_fmt = tas2770_set_dai_fmt,
> + .set_tdm_slot = tas2770_set_dai_tdm_slot,
> +};
> +
> +#define TAS2770_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
> + SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
> +
> +#define TAS2770_RATES (SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\
> + SNDRV_PCM_RATE_96000 |\
> + SNDRV_PCM_RATE_192000\
> + )
> +
> +static struct snd_soc_dai_driver tas2770_dai_driver[] = {
> + {
> + .name = "tas2770 ASI1",
> + .id = 0,
> + .playback = {
> + .stream_name = "ASI1 Playback",
> + .channels_min = 2,
> + .channels_max = 2,
> + .rates = TAS2770_RATES,
> + .formats = TAS2770_FORMATS,
> + },
> + .capture = {
> + .stream_name = "ASI1 Capture",
> + .channels_min = 0,
> + .channels_max = 2,
> + .rates = TAS2770_RATES,
> + .formats = TAS2770_FORMATS,
> + },
> + .ops = &tas2770_dai_ops,
> + .symmetric_rates = 1,
> + },
> +};
> +
> +static int tas2770_codec_probe(struct snd_soc_component *component)
> +{
> + struct tas2770_priv *p_tas2770 =
> + snd_soc_component_get_drvdata(component);
> +
> + p_tas2770->component = component;
> +
> + return 0;
> +}
> +
> +static void tas2770_codec_remove(struct snd_soc_component *component)
> +{
> + pm_runtime_put(component->dev);
> +}
> +
> +static DECLARE_TLV_DB_SCALE(tas2770_digital_tlv, 1100, 50, 0);
> +static DECLARE_TLV_DB_SCALE(tas2770_playback_volume, -12750, 50, 0);
> +
> +static const struct snd_kcontrol_new tas2770_snd_controls[] = {
> + SOC_SINGLE_TLV("Amp Output Level", TAS2770_PLAY_CFG_REG0,
> + 0, 0x14, 0,
> + tas2770_digital_tlv),
> + SOC_SINGLE_TLV("Playback Volume", TAS2770_PLAY_CFG_REG2,
> + 0, TAS2770_PLAY_CFG_REG2_VMAX, 1,
> + tas2770_playback_volume),
> +};
> +
> +static const struct snd_soc_component_driver soc_component_driver_tas2770 = {
> + .probe = tas2770_codec_probe,
> + .remove = tas2770_codec_remove,
> + .suspend = tas2770_codec_suspend,
> + .resume = tas2770_codec_resume,
> + .controls = tas2770_snd_controls,
> + .num_controls = ARRAY_SIZE(tas2770_snd_controls),
> + .dapm_widgets = tas2770_dapm_widgets,
> + .num_dapm_widgets = ARRAY_SIZE(tas2770_dapm_widgets),
> + .dapm_routes = tas2770_audio_map,
> + .num_dapm_routes = ARRAY_SIZE(tas2770_audio_map),
> + .idle_bias_on = 1,
> + .endianness = 1,
> + .non_legacy_dai_naming = 1,
> +};
> +
> +static int tas2770_register_codec(struct tas2770_priv *p_tas2770)
> +{
> + return devm_snd_soc_register_component(p_tas2770->dev,
> + &soc_component_driver_tas2770,
> + tas2770_dai_driver, ARRAY_SIZE(tas2770_dai_driver));
> +}
> +
> +static void tas2770_load_config(struct tas2770_priv *p_tas2770)
> +{
> + int ret;
> +
> + tas2770_hw_reset(p_tas2770);
> + tas2770_regmap_write(p_tas2770, TAS2770_SW_RST,
> + TAS2770_RST);
> +
> + ret = tas2770_set_slot(p_tas2770->component, p_tas2770->mn_slot_width);
> + if (ret)
> + goto error_out;
> +
> + ret = tas2770_set_fmt(p_tas2770, p_tas2770->mn_asi_format);
> + if (ret)
> + goto error_out;
> +
> + ret = tas2770_set_bitwidth(p_tas2770, p_tas2770->mn_ch_size);
> + if (ret)
> + goto error_out;
> +
> + ret = tas2770_set_samplerate(p_tas2770, p_tas2770->mn_sampling_rate);
> + if (ret)
> + goto error_out;
> +
> + ret = tas2770_set_power_state(p_tas2770, p_tas2770->mn_power_state);
> + if (ret)
> + goto error_out;
> +
> +error_out:
> + return;
> +}
> +
> +static const struct reg_default tas2770_reg_defaults[] = {
> + { TAS2770_PAGE, 0x00 },
> + { TAS2770_SW_RST, 0x00 },
> + { TAS2770_PWR_CTRL, 0x0e },
> + { TAS2770_PLAY_CFG_REG0, 0x10 },
> + { TAS2770_PLAY_CFG_REG1, 0x01 },
> + { TAS2770_PLAY_CFG_REG2, 0x00 },
> + { TAS2770_MSC_CFG_REG0, 0x07 },
> + { TAS2770_TDM_CFG_REG1, 0x02 },
> + { TAS2770_TDM_CFG_REG2, 0x0a },
> + { TAS2770_TDM_CFG_REG3, 0x10 },
> + { TAS2770_INT_MASK_REG0, 0xfc },
> + { TAS2770_INT_MASK_REG1, 0xb1 },
> + { TAS2770_INT_CFG, 0x05 },
> + { TAS2770_MISC_IRQ, 0x81 },
> + { TAS2770_CLK_CGF, 0x0c },
> +
> +};
> +
> +static bool tas2770_volatile(struct device *dev, unsigned int reg)
> +{
> + switch (reg) {
> + case TAS2770_PAGE: /* regmap implementation requires this */
> + case TAS2770_SW_RST: /* always clears after write */
> + case TAS2770_BO_PRV_REG0:/* has a self clearing bit */
> + case TAS2770_LVE_INT_REG0:
> + case TAS2770_LVE_INT_REG1:
> + case TAS2770_LAT_INT_REG0:/* Sticky interrupt flags */
> + case TAS2770_LAT_INT_REG1:/* Sticky interrupt flags */
> + case TAS2770_VBAT_MSB:
> + case TAS2770_VBAT_LSB:
> + case TAS2770_TEMP_MSB:
> + case TAS2770_TEMP_LSB:
> + return true;
> + }
> + return false;
> +}
> +
> +static bool tas2770_writeable(struct device *dev, unsigned int reg)
> +{
> + switch (reg) {
> + case TAS2770_LVE_INT_REG0:
> + case TAS2770_LVE_INT_REG1:
> + case TAS2770_LAT_INT_REG0:
> + case TAS2770_LAT_INT_REG1:
> + case TAS2770_VBAT_MSB:
> + case TAS2770_VBAT_LSB:
> + case TAS2770_TEMP_MSB:
> + case TAS2770_TEMP_LSB:
> + case TAS2770_TDM_CLK_DETC:
> + case TAS2770_REV_AND_GPID:
> + return false;
> + }
> + return true;
> +}
> +
> +static const struct regmap_range_cfg tas2770_regmap_ranges[] = {
> + {
> + .range_min = 0,
> + .range_max = 1 * 128,
> + .selector_reg = TAS2770_PAGE,
> + .selector_mask = 0xff,
> + .selector_shift = 0,
> + .window_start = 0,
> + .window_len = 128,
> + },
> +};
> +
> +static const struct regmap_config tas2770_i2c_regmap = {
> + .reg_bits = 8,
> + .val_bits = 8,
> + .writeable_reg = tas2770_writeable,
> + .volatile_reg = tas2770_volatile,
> + .reg_defaults = tas2770_reg_defaults,
> + .num_reg_defaults = ARRAY_SIZE(tas2770_reg_defaults),
> + .cache_type = REGCACHE_RBTREE,
> + .ranges = tas2770_regmap_ranges,
> + .num_ranges = ARRAY_SIZE(tas2770_regmap_ranges),
> + .max_register = 1 * 128,
> +};
> +
> +static irqreturn_t tas2770_irq_handler(int irq, void *dev_id)
> +{
> + struct tas2770_priv *p_tas2770 = (struct tas2770_priv *)dev_id;
> +
> + unsigned int nDevInt1Status = 0, nDevInt2Status = 0;
> + int n_counter = 2;
> + int n_result;
> +
> + mutex_lock(&p_tas2770->codec_lock);
> +
> + tas2770_enable_irq(p_tas2770, false);
> +
> + if (p_tas2770->mb_runtime_suspend)
> + goto end;
> +
> + if (p_tas2770->mn_power_state == TAS2770_POWER_SHUTDOWN)
> + goto end;
> +
> + n_result = tas2770_regmap_write(p_tas2770, TAS2770_INT_MASK_REG0,
> + TAS2770_INT_MASK_REG0_DISABLE);
> + if (n_result)
> + goto reload;
> + n_result = tas2770_regmap_write(p_tas2770, TAS2770_INT_MASK_REG1,
> + TAS2770_INT_MASK_REG1_DISABLE);
> + if (n_result)
> + goto reload;
> +
> + n_result = tas2770_regmap_read(p_tas2770,
> + TAS2770_LAT_INT_REG0, &nDevInt1Status);
> + if (n_result >= 0)
> + n_result = tas2770_regmap_read(p_tas2770,
> + TAS2770_LAT_INT_REG1, &nDevInt2Status);
> + else
> + goto reload;
> +
> + if (((nDevInt1Status & 0x3) != 0) || ((nDevInt2Status & 0x0f) != 0)) {
magic numbers need #defines
> + /* in case of INT_OC, INT_OT, INT_OVLT, INT_UVLT, INT_BO */
> +
> + if (nDevInt1Status &
> + TAS2770_LAT_INT_REG0_OCE_FLG) {
> + p_tas2770->mn_err_code |= ERROR_OVER_CURRENT;
> + dev_err(p_tas2770->dev, "SPK over current!\n");
> + } else {
> + p_tas2770->mn_err_code &= ~ERROR_OVER_CURRENT;
> + }
> +
> + if (nDevInt1Status &
> + TAS2770_LAT_INT_REG0_OTE_FLG) {
> + p_tas2770->mn_err_code |= ERROR_DIE_OVERTEMP;
> + dev_err(p_tas2770->dev, "die over temperature!\n");
> + } else {
> + p_tas2770->mn_err_code &= ~ERROR_DIE_OVERTEMP;
> + }
> +
> + if (nDevInt2Status &
> + TAS2770_LAT_INT_REG1_VBA_TOV) {
> + p_tas2770->mn_err_code |= ERROR_OVER_VOLTAGE;
> + dev_err(p_tas2770->dev, "SPK over voltage!\n");
> + } else {
> + p_tas2770->mn_err_code &= ~ERROR_OVER_VOLTAGE;
> + }
> +
> + if (nDevInt2Status &
> + TAS2770_LAT_INT_REG1_VBA_TUV) {
> + p_tas2770->mn_err_code |= ERROR_UNDER_VOLTAGE;
> + dev_err(p_tas2770->dev, "SPK under voltage!\n");
> + } else {
> + p_tas2770->mn_err_code &= ~ERROR_UNDER_VOLTAGE;
> + }
> +
> + if (nDevInt2Status &
> + TAS2770_LAT_INT_REG1_BOUT_FLG) {
> + p_tas2770->mn_err_code |= ERROR_BROWNOUT;
> + dev_err(p_tas2770->dev, "brownout!\n");
> + } else {
> + p_tas2770->mn_err_code &= ~ERROR_BROWNOUT;
> + }
> +
> + goto reload;
> + } else {
> + n_counter = 2;
> +
> + while (n_counter > 0) {
> + n_result = tas2770_regmap_read(p_tas2770,
> + TAS2770_PWR_CTRL, &nDevInt1Status);
> + if (n_result)
> + goto reload;
> +
> + if ((nDevInt1Status &
> + TAS2770_PWR_CTRL_MASK)
> + != TAS2770_PWR_CTRL_SHUTDOWN)
> + break;
> +
> + n_counter--;
> + if (n_counter > 0)
> + msleep(20);
> + }
> +
> + if ((nDevInt1Status &
> + TAS2770_PWR_CTRL_MASK)
> + == TAS2770_PWR_CTRL_SHUTDOWN) {
> + dev_err(p_tas2770->dev, "%s, Critical ERROR REG[0x%x] = 0x%x\n",
> + __func__,
> + TAS2770_PWR_CTRL,
> + nDevInt1Status);
The formatting here is a bit funky this looks like most can honor the 80
LoC guidance
> + p_tas2770->mn_err_code |= ERROR_CLASSD_PWR;
> + goto reload;
> + }
> + p_tas2770->mn_err_code &= ~ERROR_CLASSD_PWR;
> + }
> +
> + n_result = tas2770_regmap_write(p_tas2770,
> + TAS2770_INT_MASK_REG0, 0xfc);
Magic number? What is 0xfc do?
> + if (n_result)
> + goto reload;
> +
> + n_result = tas2770_regmap_write(p_tas2770,
> + TAS2770_INT_MASK_REG1, 0xb1);
Magic number? What is 0xb1 do?
> + if (n_result)
> + goto reload;
> +
> + goto end;
> +
> +reload:
> + /* hardware reset and reload */
> + tas2770_load_config(p_tas2770);
> +
> +end:
> + mutex_unlock(&p_tas2770->codec_lock);
> + tas2770_enable_irq(p_tas2770, true);
> +
> + return IRQ_HANDLED;
> +}
> +
> +static int tas2770_parse_dt(struct device *dev, struct tas2770_priv *p_tas2770)
> +{
> + int rc = 0;
> +
> + rc = fwnode_property_read_u32(dev->fwnode, "ti,asi-format",
> + &p_tas2770->mn_asi_format);
> + if (rc) {
> + dev_err(p_tas2770->dev, "Looking up %s property failed %d\n",
> + "ti,asi-format", rc);
> + goto end;
> + }
> +
> + rc = fwnode_property_read_u32(dev->fwnode, "ti,left-slot",
> + &p_tas2770->mn_left_slot);
> + if (rc) {
> + dev_err(p_tas2770->dev, "Looking up %s property failed %d\n",
> + "ti,left-slot", rc);
> + goto end;
> + }
> +
> + rc = fwnode_property_read_u32(dev->fwnode, "ti,right-slot",
> + &p_tas2770->mn_right_slot);
> + if (rc) {
> + dev_err(p_tas2770->dev, "Looking up %s property failed %d\n",
> + "ti,right-slot", rc);
> + goto end;
> + }
> +
> + rc = fwnode_property_read_u32(dev->fwnode, "ti,imon-slot-no",
> + &p_tas2770->mn_i_mon_slot_no);
> + if (rc) {
> + dev_err(p_tas2770->dev, "Looking up %s property failed %d\n",
> + "ti,imon-slot-no", rc);
> + goto end;
> + }
> +
> + rc = fwnode_property_read_u32(dev->fwnode, "ti,vmon-slot-no",
> + &p_tas2770->mn_v_mon_slot_no);
> + if (rc) {
> + dev_err(p_tas2770->dev, "Looking up %s property failed %d\n",
> + "ti,vmon-slot-no", rc);
> + goto end;
> + }
> +
> +end:
> + return rc;
> +}
> +
> +static int tas2770_i2c_probe(struct i2c_client *client,
> + const struct i2c_device_id *id)
> +{
> + struct tas2770_priv *p_tas2770;
> + int n_result;
> +
> + p_tas2770 = devm_kzalloc(&client->dev,
> + sizeof(struct tas2770_priv), GFP_KERNEL);
> + if (p_tas2770 == NULL)
if (!p_tas2770)
> + return -ENOMEM;
> + p_tas2770->dev = &client->dev;
> + p_tas2770->mn_irq = client->irq;
> +
> + i2c_set_clientdata(client, p_tas2770);
> + dev_set_drvdata(&client->dev, p_tas2770);
> + p_tas2770->mn_power_state = TAS2770_POWER_SHUTDOWN;
> +
> + p_tas2770->regmap = devm_regmap_init_i2c(client, &tas2770_i2c_regmap);
> + if (IS_ERR(p_tas2770->regmap)) {
> + n_result = PTR_ERR(p_tas2770->regmap);
> + dev_err(&client->dev, "Failed to allocate register map: %d\n",
> + n_result);
> + goto end;
> + }
> +
> + if (client->dev.of_node) {
> + n_result = tas2770_parse_dt(&client->dev, p_tas2770);
> + if (n_result) {
> + dev_err(p_tas2770->dev, "%s: Failed to parse devicetree\n",
> + __func__);
> + goto end;
> + }
> + }
> +
> + p_tas2770->mn_reset_gpio = devm_gpiod_get_optional(p_tas2770->dev,
> + "reset-gpio",
> + GPIOD_OUT_HIGH);
> + if (IS_ERR(p_tas2770->mn_reset_gpio)) {
> + if (PTR_ERR(p_tas2770->mn_reset_gpio) == -EPROBE_DEFER)
> + return -EPROBE_DEFER;
> + p_tas2770->mn_reset_gpio = NULL;
> + }
> +
Formatting issue here
> + if (p_tas2770->mn_irq > 0) {
> + n_result = devm_request_threaded_irq(p_tas2770->dev,
> + p_tas2770->mn_irq,
> + NULL, tas2770_irq_handler,
> + IRQF_TRIGGER_FALLING | IRQF_ONESHOT, client->name,
> + p_tas2770);
> + if (n_result) {
> + dev_err(p_tas2770->dev, "Unable to request IRQ\n");
> + return n_result;
> + }
> + }
> +
> + p_tas2770->mn_ch_size = 0;
> + p_tas2770->mn_slot_width = 0;
> +
> + tas2770_hw_reset(p_tas2770);
> + tas2770_regmap_write(p_tas2770, TAS2770_SW_RST,
> + TAS2770_RST);
Why a hw_reset then a sw reset? Shouldn't this be in a function called
reset that either does HW or SW reset?
> +
> + mutex_init(&p_tas2770->dev_lock);
> +
> + mutex_init(&p_tas2770->codec_lock);
> + n_result = tas2770_register_codec(p_tas2770);
> + if (n_result)
> + dev_err(p_tas2770->dev, "Register codec failed.\n");
> +
> +end:
> + return n_result;
> +}
> +
> +static int tas2770_i2c_remove(struct i2c_client *client)
> +{
> + struct tas2770_priv *p_tas2770 = i2c_get_clientdata(client);
> +
> + mutex_destroy(&p_tas2770->dev_lock);
mutex_destroy(codec_lock)
> +
> + return 0;
> +}
> +
> +
> +static const struct i2c_device_id tas2770_i2c_id[] = {
> + { "tas2770", 0},
> + { }
> +};
> +MODULE_DEVICE_TABLE(i2c, tas2770_i2c_id);
> +
> +#if defined(CONFIG_OF)
> +static const struct of_device_id tas2770_of_match[] = {
> + { .compatible = "ti,tas2770" },
> + {},
> +};
> +MODULE_DEVICE_TABLE(of, tas2770_of_match);
> +#endif
> +
> +static struct i2c_driver tas2770_i2c_driver = {
> + .driver = {
> + .name = "tas2770",
> + .owner = THIS_MODULE,
> +#if defined(CONFIG_OF)
> + .of_match_table = of_match_ptr(tas2770_of_match),
> +#endif
> + },
> + .probe = tas2770_i2c_probe,
> + .remove = tas2770_i2c_remove,
> + .id_table = tas2770_i2c_id,
> +};
> +
> +module_i2c_driver(tas2770_i2c_driver);
> +
> +MODULE_AUTHOR("Shi Fu <shifu0704@...ndersoft.com>");
> +MODULE_DESCRIPTION("TAS2770 I2C Smart Amplifier driver");
> +MODULE_LICENSE("GPL v2");
> diff --git a/sound/soc/codecs/tas2770.h b/sound/soc/codecs/tas2770.h
> new file mode 100644
> index 0000000..f08e208
> --- /dev/null
> +++ b/sound/soc/codecs/tas2770.h
> @@ -0,0 +1,173 @@
> +/* SPDX-License-Identifier: GPL-2.0
> + *
> + * ALSA SoC TAS2770 codec driver
> + *
> + * Copyright (C) 2016-2017 Texas Instruments Incorporated - http://www.ti.com/
> + */
> +#ifndef __TAS2770__
> +#define __TAS2770__
> +
> +/* Book Control Register (available in page0 of each book) */
> +#define TAS2770_BOOKCTL_PAGE 0
> +#define TAS2770_BOOKCTL_REG 127
> +#define TAS2770_REG(page, reg) ((page * 128) + reg)
> + /* Page */
> +#define TAS2770_PAGE TAS2770_REG(0X0, 0x00)
> +#define TAS2770_PAGE_PAGE_MASK 255
> + /* Software Reset */
> +#define TAS2770_SW_RST TAS2770_REG(0X0, 0x01)
> +#define TAS2770_RST BIT(0)
> + /* Power Control */
> +#define TAS2770_PWR_CTRL TAS2770_REG(0X0, 0x02)
> +#define TAS2770_PWR_CTRL_MASK 0x3
> +#define TAS2770_PWR_CTRL_ACTIVE 0x0
> +#define TAS2770_PWR_CTRL_MUTE BIT(0)
> +#define TAS2770_PWR_CTRL_SHUTDOWN 0x2
> + /* Playback Configuration Reg0 */
> +#define TAS2770_PLAY_CFG_REG0 TAS2770_REG(0X0, 0x03)
> + /* Playback Configuration Reg1 */
> +#define TAS2770_PLAY_CFG_REG1 TAS2770_REG(0X0, 0x04)
> + /* Playback Configuration Reg2 */
> +#define TAS2770_PLAY_CFG_REG2 TAS2770_REG(0X0, 0x05)
> +#define TAS2770_PLAY_CFG_REG2_VMAX 0xc9
> + /* Misc Configuration Reg0 */
> +#define TAS2770_MSC_CFG_REG0 TAS2770_REG(0X0, 0x07)
> + /* TDM Configuration Reg0 */
> +#define TAS2770_TDM_CFG_REG0 TAS2770_REG(0X0, 0x0A)
> +#define TAS2770_TDM_CFG_REG0_SMP_MASK BIT(5)
> +#define TAS2770_TDM_CFG_REG0_SMP_48KHZ 0x0
> +#define TAS2770_TDM_CFG_REG0_SMP_44_1KHZ BIT(5)
> +#define TAS2770_TDM_CFG_REG0_31_MASK 0xe
> +#define TAS2770_TDM_CFG_REG0_31_44_1_48KHZ 0x6
> +#define TAS2770_TDM_CFG_REG0_31_88_2_96KHZ 0x8
> +#define TAS2770_TDM_CFG_REG0_31_176_4_192KHZ 0xa
> + /* TDM Configuration Reg1 */
> +#define TAS2770_TDM_CFG_REG1 TAS2770_REG(0X0, 0x0B)
> +#define TAS2770_TDM_CFG_REG1_MASK 0x3e
> +#define TAS2770_TDM_CFG_REG1_51_SHIFT 1
> +#define TAS2770_TDM_CFG_REG1_RX_MASK BIT(0)
> +#define TAS2770_TDM_CFG_REG1_RX_RSING 0x0
> +#define TAS2770_TDM_CFG_REG1_RX_FALING BIT(0)
> + /* TDM Configuration Reg2 */
> +#define TAS2770_TDM_CFG_REG2 TAS2770_REG(0X0, 0x0C)
> +#define TAS2770_TDM_CFG_REG2_RXW_MASK 0xc
> +#define TAS2770_TDM_CFG_REG2_RXW_16BITS 0x0
> +#define TAS2770_TDM_CFG_REG2_RXW_24BITS 0x8
> +#define TAS2770_TDM_CFG_REG2_RXW_32BITS 0xc
> +#define TAS2770_TDM_CFG_REG2_RXS_MASK 0x3
> +#define TAS2770_TDM_CFG_REG2_RXS_16BITS 0x0
> +#define TAS2770_TDM_CFG_REG2_RXS_24BITS BIT(0)
> +#define TAS2770_TDM_CFG_REG2_RXS_32BITS 0x2
> + /* TDM Configuration Reg3 */
> +#define TAS2770_TDM_CFG_REG3 TAS2770_REG(0X0, 0x0D)
> +#define TAS2770_TDM_CFG_REG3_RXS_MASK 0xf0
> +#define TAS2770_TDM_CFG_REG3_RXS_SHIFT 0x4
> +#define TAS2770_TDM_CFG_REG3_30_MASK 0xf
> +#define TAS2770_TDM_CFG_REG3_30_SHIFT 0
> + /* TDM Configuration Reg5 */
> +#define TAS2770_TDM_CFG_REG5 TAS2770_REG(0X0, 0x0F)
> +#define TAS2770_TDM_CFG_REG5_VSNS_MASK BIT(6)
> +#define TAS2770_TDM_CFG_REG5_VSNS_ENABLE BIT(6)
> +#define TAS2770_TDM_CFG_REG5_50_MASK 0x3f
> + /* TDM Configuration Reg6 */
> +#define TAS2770_TDM_CFG_REG6 TAS2770_REG(0X0, 0x10)
> +#define TAS2770_TDM_CFG_REG6_ISNS_MASK BIT(6)
> +#define TAS2770_TDM_CFG_REG6_ISNS_ENABLE BIT(6)
> +#define TAS2770_TDM_CFG_REG6_50_MASK 0x3f
> + /* Brown Out Prevention Reg0 */
> +#define TAS2770_BO_PRV_REG0 TAS2770_REG(0X0, 0x1B)
> + /* Interrupt MASK Reg0 */
> +#define TAS2770_INT_MASK_REG0 TAS2770_REG(0X0, 0x20)
> +#define TAS2770_INT_MASK_REG0_DISABLE 0xff
> + /* Interrupt MASK Reg1 */
> +#define TAS2770_INT_MASK_REG1 TAS2770_REG(0X0, 0x21)
> +#define TAS2770_INT_MASK_REG1_DISABLE 0xff
> + /* Live-Interrupt Reg0 */
> +#define TAS2770_LVE_INT_REG0 TAS2770_REG(0X0, 0x22)
> + /* Live-Interrupt Reg1 */
> +#define TAS2770_LVE_INT_REG1 TAS2770_REG(0X0, 0x23)
> + /* Latched-Interrupt Reg0 */
> +#define TAS2770_LAT_INT_REG0 TAS2770_REG(0X0, 0x24)
> +#define TAS2770_LAT_INT_REG0_OCE_FLG BIT(1)
> +#define TAS2770_LAT_INT_REG0_OTE_FLG BIT(0)
> + /* Latched-Interrupt Reg1 */
> +#define TAS2770_LAT_INT_REG1 TAS2770_REG(0X0, 0x25)
> +#define TAS2770_LAT_INT_REG1_VBA_TOV BIT(3)
> +#define TAS2770_LAT_INT_REG1_VBA_TUV BIT(2)
> +#define TAS2770_LAT_INT_REG1_BOUT_FLG BIT(1)
> + /* VBAT MSB */
> +#define TAS2770_VBAT_MSB TAS2770_REG(0X0, 0x27)
> + /* VBAT LSB */
> +#define TAS2770_VBAT_LSB TAS2770_REG(0X0, 0x28)
> + /* TEMP MSB */
> +#define TAS2770_TEMP_MSB TAS2770_REG(0X0, 0x29)
> + /* TEMP LSB */
> +#define TAS2770_TEMP_LSB TAS2770_REG(0X0, 0x2A)
> + /* Interrupt Configuration */
> +#define TAS2770_INT_CFG TAS2770_REG(0X0, 0x30)
> + /* Misc IRQ */
> +#define TAS2770_MISC_IRQ TAS2770_REG(0X0, 0x32)
> + /* Clock Configuration */
> +#define TAS2770_CLK_CGF TAS2770_REG(0X0, 0x3C)
> + /* TDM Clock detection monitor */
> +#define TAS2770_TDM_CLK_DETC TAS2770_REG(0X0, 0x77)
> + /* Revision and PG ID */
> +#define TAS2770_REV_AND_GPID TAS2770_REG(0X0, 0x7D)
> +
> +#define TAS2770_POWER_ACTIVE 0
> +#define TAS2770_POWER_MUTE 1
> +#define TAS2770_POWER_SHUTDOWN 2
> +#define ERROR_OVER_CURRENT 0x0000001
> +#define ERROR_DIE_OVERTEMP 0x0000002
> +#define ERROR_OVER_VOLTAGE 0x0000004
> +#define ERROR_UNDER_VOLTAGE 0x0000008
> +#define ERROR_BROWNOUT 0x0000010
> +#define ERROR_CLASSD_PWR 0x0000020
> +#define TAS2770_SLOT_16BIT 16
> +#define TAS2770_SLOT_32BIT 32
> +#define TAS2770_I2C_RETRY_COUNT 3
> +#define ERROR_I2C_FAILED -2
> +
> +struct tas2770_register {
> + int book;
> + int page;
> + int reg;
> +};
> +
> +struct tas2770_dai_cfg {
> + unsigned int dai_fmt;
> + unsigned int tdm_delay;
> +};
> +
> +struct tas2770_priv {
> + struct device *dev;
> + struct regmap *regmap;
> + struct snd_soc_codec *codec;
> + struct snd_soc_component *component;
> + struct mutex dev_lock;
> + struct hrtimer mtimer;
> + int mn_clkin;
> + int mn_clkid;
> + int mn_power_state;
> + int mn_current_book;
> + int mn_current_page;
> + int mn_load;
> + int mn_asi_format;
> + struct gpio_desc *mn_reset_gpio;
> + int mn_irq;
> + bool mb_irq_enable;
> + int mn_sampling_rate;
> + int mn_frame_size;
> + int mn_pll;
> + int mn_left_slot;
> + int mn_right_slot;
> + int mn_ch_size;
> + int mn_slot_width;
> + int mn_v_mon_slot_no;
> + int mn_i_mon_slot_no;
> + bool mb_runtime_suspend;
> + unsigned int mn_err_code;
> + struct mutex codec_lock;
> +};
> +
> +#endif /* __TAS2770__ */
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