ASoC: tas2552: Support TI TAS2552 Amplifier
Support the TI TAS2552 Class D amplifier. The TAS2552 is a high efficiency Class-D audio power amplifier with advanced battery current management and an integrated Class-G boost The device constantly measures the current and voltage across the load and provides a digital stream of this information. Signed-off-by: Dan Murphy <dmurphy@ti.com> Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Dan Murphy
Mark Brown
parent
7171511eae
commit
5df7f71d5c
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@ -0,0 +1,26 @@
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Texas Instruments - tas2552 Codec module
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The tas2552 serial control bus communicates through I2C protocols
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Required properties:
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- compatible - One of:
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"ti,tas2552" - TAS2552
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- reg - I2C slave address
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- supply-*: Required supply regulators are:
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"vbat" battery voltage
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"iovdd" I/O Voltage
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"avdd" Analog DAC Voltage
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Optional properties:
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- enable-gpio - gpio pin to enable/disable the device
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Example:
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tas2552: tas2552@41 {
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compatible = "ti,tas2552";
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reg = <0x41>;
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enable-gpio = <&gpio4 2 GPIO_ACTIVE_HIGH>;
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};
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For more product information please see the link below:
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http://www.ti.com/product/TAS2552
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@ -0,0 +1,25 @@
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/*
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* TAS2552 driver platform header
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*
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* Copyright (C) 2014 Texas Instruments Inc.
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*
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* Author: Dan Murphy <dmurphy@ti.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*/
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#ifndef TAS2552_PLAT_H
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#define TAS2552_PLAT_H
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struct tas2552_platform_data {
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int enable_gpio;
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};
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#endif
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@ -91,6 +91,7 @@ config SND_SOC_ALL_CODECS
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select SND_SOC_STA350 if I2C
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select SND_SOC_STA350 if I2C
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select SND_SOC_STA529 if I2C
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select SND_SOC_STA529 if I2C
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select SND_SOC_STAC9766 if SND_SOC_AC97_BUS
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select SND_SOC_STAC9766 if SND_SOC_AC97_BUS
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select SND_SOC_TAS2552 if I2C
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select SND_SOC_TAS5086 if I2C
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select SND_SOC_TAS5086 if I2C
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select SND_SOC_TLV320AIC23_I2C if I2C
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select SND_SOC_TLV320AIC23_I2C if I2C
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select SND_SOC_TLV320AIC23_SPI if SPI_MASTER
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select SND_SOC_TLV320AIC23_SPI if SPI_MASTER
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@ -513,6 +514,10 @@ config SND_SOC_STA529
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config SND_SOC_STAC9766
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config SND_SOC_STAC9766
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tristate
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tristate
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config SND_SOC_TAS2552
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tristate "Texas Instruments TAS2552 Mono Audio amplifier"
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depends on I2C
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config SND_SOC_TAS5086
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config SND_SOC_TAS5086
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tristate "Texas Instruments TAS5086 speaker amplifier"
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tristate "Texas Instruments TAS5086 speaker amplifier"
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depends on I2C
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depends on I2C
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@ -160,6 +160,7 @@ snd-soc-wm-hubs-objs := wm_hubs.o
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# Amp
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# Amp
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snd-soc-max9877-objs := max9877.o
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snd-soc-max9877-objs := max9877.o
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snd-soc-tpa6130a2-objs := tpa6130a2.o
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snd-soc-tpa6130a2-objs := tpa6130a2.o
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snd-soc-tas2552-objs := tas2552.o
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obj-$(CONFIG_SND_SOC_88PM860X) += snd-soc-88pm860x.o
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obj-$(CONFIG_SND_SOC_88PM860X) += snd-soc-88pm860x.o
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obj-$(CONFIG_SND_SOC_AB8500_CODEC) += snd-soc-ab8500-codec.o
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obj-$(CONFIG_SND_SOC_AB8500_CODEC) += snd-soc-ab8500-codec.o
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@ -251,6 +252,7 @@ obj-$(CONFIG_SND_SOC_STA32X) += snd-soc-sta32x.o
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obj-$(CONFIG_SND_SOC_STA350) += snd-soc-sta350.o
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obj-$(CONFIG_SND_SOC_STA350) += snd-soc-sta350.o
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obj-$(CONFIG_SND_SOC_STA529) += snd-soc-sta529.o
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obj-$(CONFIG_SND_SOC_STA529) += snd-soc-sta529.o
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obj-$(CONFIG_SND_SOC_STAC9766) += snd-soc-stac9766.o
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obj-$(CONFIG_SND_SOC_STAC9766) += snd-soc-stac9766.o
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obj-$(CONFIG_SND_SOC_TAS2552) += snd-soc-tas2552.o
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obj-$(CONFIG_SND_SOC_TAS5086) += snd-soc-tas5086.o
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obj-$(CONFIG_SND_SOC_TAS5086) += snd-soc-tas5086.o
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obj-$(CONFIG_SND_SOC_TLV320AIC23) += snd-soc-tlv320aic23.o
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obj-$(CONFIG_SND_SOC_TLV320AIC23) += snd-soc-tlv320aic23.o
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obj-$(CONFIG_SND_SOC_TLV320AIC23_I2C) += snd-soc-tlv320aic23-i2c.o
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obj-$(CONFIG_SND_SOC_TLV320AIC23_I2C) += snd-soc-tlv320aic23-i2c.o
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@ -0,0 +1,540 @@
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/*
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* tas2552.c - ALSA SoC Texas Instruments TAS2552 Mono Audio Amplifier
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*
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* Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com
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*
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* Author: Dan Murphy <dmurphy@ti.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*/
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#include <linux/module.h>
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#include <linux/errno.h>
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#include <linux/device.h>
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#include <linux/i2c.h>
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#include <linux/gpio.h>
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#include <linux/of_gpio.h>
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#include <linux/pm_runtime.h>
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#include <linux/regmap.h>
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#include <linux/slab.h>
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#include <linux/gpio/consumer.h>
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#include <linux/regulator/consumer.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/tlv.h>
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#include <sound/tas2552-plat.h>
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#include "tas2552.h"
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static struct reg_default tas2552_reg_defs[] = {
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{TAS2552_CFG_1, 0x22},
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{TAS2552_CFG_3, 0x80},
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{TAS2552_DOUT, 0x00},
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{TAS2552_OUTPUT_DATA, 0xc0},
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{TAS2552_PDM_CFG, 0x01},
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{TAS2552_PGA_GAIN, 0x00},
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{TAS2552_BOOST_PT_CTRL, 0x0f},
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{TAS2552_RESERVED_0D, 0x00},
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{TAS2552_LIMIT_RATE_HYS, 0x08},
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{TAS2552_CFG_2, 0xef},
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{TAS2552_SER_CTRL_1, 0x00},
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{TAS2552_SER_CTRL_2, 0x00},
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{TAS2552_PLL_CTRL_1, 0x10},
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{TAS2552_PLL_CTRL_2, 0x00},
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{TAS2552_PLL_CTRL_3, 0x00},
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{TAS2552_BTIP, 0x8f},
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{TAS2552_BTS_CTRL, 0x80},
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{TAS2552_LIMIT_RELEASE, 0x04},
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{TAS2552_LIMIT_INT_COUNT, 0x00},
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{TAS2552_EDGE_RATE_CTRL, 0x40},
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{TAS2552_VBAT_DATA, 0x00},
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};
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#define TAS2552_NUM_SUPPLIES 3
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static const char *tas2552_supply_names[TAS2552_NUM_SUPPLIES] = {
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"vbat", /* vbat voltage */
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"iovdd", /* I/O Voltage */
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"avdd", /* Analog DAC Voltage */
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};
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struct tas2552_data {
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struct snd_soc_codec *codec;
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struct regmap *regmap;
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struct i2c_client *tas2552_client;
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struct regulator_bulk_data supplies[TAS2552_NUM_SUPPLIES];
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struct gpio_desc *enable_gpio;
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unsigned char regs[TAS2552_VBAT_DATA];
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unsigned int mclk;
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};
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static void tas2552_sw_shutdown(struct tas2552_data *tas_data, int sw_shutdown)
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{
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u8 cfg1_reg;
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if (sw_shutdown)
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cfg1_reg = 0;
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else
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cfg1_reg = TAS2552_SWS_MASK;
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snd_soc_update_bits(tas_data->codec, TAS2552_CFG_1,
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TAS2552_SWS_MASK, cfg1_reg);
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}
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static int tas2552_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_codec *codec = dai->codec;
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struct tas2552_data *tas2552 = dev_get_drvdata(codec->dev);
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int sample_rate, pll_clk;
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int d;
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u8 p, j;
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/* Turn on Class D amplifier */
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snd_soc_update_bits(codec, TAS2552_CFG_2, TAS2552_CLASSD_EN_MASK,
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TAS2552_CLASSD_EN);
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if (!tas2552->mclk)
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return -EINVAL;
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snd_soc_update_bits(codec, TAS2552_CFG_2, TAS2552_PLL_ENABLE, 0);
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if (tas2552->mclk == TAS2552_245MHZ_CLK ||
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tas2552->mclk == TAS2552_225MHZ_CLK) {
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/* By pass the PLL configuration */
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snd_soc_update_bits(codec, TAS2552_PLL_CTRL_2,
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TAS2552_PLL_BYPASS_MASK,
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TAS2552_PLL_BYPASS);
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} else {
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/* Fill in the PLL control registers for J & D
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* PLL_CLK = (.5 * freq * J.D) / 2^p
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* Need to fill in J and D here based on incoming freq
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*/
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p = snd_soc_read(codec, TAS2552_PLL_CTRL_1);
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p = (p >> 7);
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sample_rate = params_rate(params);
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if (sample_rate == 48000)
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pll_clk = TAS2552_245MHZ_CLK;
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else if (sample_rate == 44100)
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pll_clk = TAS2552_225MHZ_CLK;
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else {
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dev_vdbg(codec->dev, "Substream sample rate is not found %i\n",
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params_rate(params));
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return -EINVAL;
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}
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j = (pll_clk * 2 * (1 << p)) / tas2552->mclk;
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d = (pll_clk * 2 * (1 << p)) % tas2552->mclk;
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snd_soc_update_bits(codec, TAS2552_PLL_CTRL_1,
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TAS2552_PLL_J_MASK, j);
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snd_soc_write(codec, TAS2552_PLL_CTRL_2,
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(d >> 7) & TAS2552_PLL_D_UPPER_MASK);
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snd_soc_write(codec, TAS2552_PLL_CTRL_3,
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d & TAS2552_PLL_D_LOWER_MASK);
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}
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snd_soc_update_bits(codec, TAS2552_CFG_2, TAS2552_PLL_ENABLE,
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TAS2552_PLL_ENABLE);
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return 0;
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}
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static int tas2552_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
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{
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struct snd_soc_codec *codec = dai->codec;
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u8 serial_format;
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u8 serial_control_mask;
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switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
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case SND_SOC_DAIFMT_CBS_CFS:
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serial_format = 0x00;
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break;
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case SND_SOC_DAIFMT_CBS_CFM:
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serial_format = TAS2552_WORD_CLK_MASK;
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break;
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case SND_SOC_DAIFMT_CBM_CFS:
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serial_format = TAS2552_BIT_CLK_MASK;
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break;
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case SND_SOC_DAIFMT_CBM_CFM:
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serial_format = (TAS2552_BIT_CLK_MASK | TAS2552_WORD_CLK_MASK);
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break;
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default:
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dev_vdbg(codec->dev, "DAI Format master is not found\n");
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return -EINVAL;
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}
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serial_control_mask = TAS2552_BIT_CLK_MASK | TAS2552_WORD_CLK_MASK;
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switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
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case SND_SOC_DAIFMT_I2S:
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serial_format &= TAS2552_DAIFMT_I2S_MASK;
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break;
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case SND_SOC_DAIFMT_DSP_A:
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serial_format |= TAS2552_DAIFMT_DSP;
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break;
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case SND_SOC_DAIFMT_RIGHT_J:
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serial_format |= TAS2552_DAIFMT_RIGHT_J;
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break;
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case SND_SOC_DAIFMT_LEFT_J:
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serial_format |= TAS2552_DAIFMT_LEFT_J;
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break;
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default:
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dev_vdbg(codec->dev, "DAI Format is not found\n");
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return -EINVAL;
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}
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if (fmt & SND_SOC_DAIFMT_FORMAT_MASK)
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serial_control_mask |= TAS2552_DATA_FORMAT_MASK;
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snd_soc_update_bits(codec, TAS2552_SER_CTRL_1, serial_control_mask,
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serial_format);
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return 0;
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}
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static int tas2552_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id,
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unsigned int freq, int dir)
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{
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struct snd_soc_codec *codec = dai->codec;
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struct tas2552_data *tas2552 = dev_get_drvdata(codec->dev);
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tas2552->mclk = freq;
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return 0;
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}
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static int tas2552_mute(struct snd_soc_dai *dai, int mute)
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{
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u8 cfg1_reg;
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struct snd_soc_codec *codec = dai->codec;
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if (mute)
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cfg1_reg = TAS2552_MUTE_MASK;
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else
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cfg1_reg = ~TAS2552_MUTE_MASK;
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snd_soc_update_bits(codec, TAS2552_CFG_1, TAS2552_MUTE_MASK, cfg1_reg);
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return 0;
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}
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#ifdef CONFIG_PM_RUNTIME
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static int tas2552_runtime_suspend(struct device *dev)
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{
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struct tas2552_data *tas2552 = dev_get_drvdata(dev);
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tas2552_sw_shutdown(tas2552, 0);
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|
|
||||||
|
if (tas2552->enable_gpio)
|
||||||
|
gpiod_set_value(tas2552->enable_gpio, 0);
|
||||||
|
|
||||||
|
regcache_cache_only(tas2552->regmap, true);
|
||||||
|
regcache_mark_dirty(tas2552->regmap);
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int tas2552_runtime_resume(struct device *dev)
|
||||||
|
{
|
||||||
|
struct tas2552_data *tas2552 = dev_get_drvdata(dev);
|
||||||
|
|
||||||
|
if (tas2552->enable_gpio)
|
||||||
|
gpiod_set_value(tas2552->enable_gpio, 1);
|
||||||
|
|
||||||
|
tas2552_sw_shutdown(tas2552, 1);
|
||||||
|
|
||||||
|
regcache_cache_only(tas2552->regmap, false);
|
||||||
|
regcache_sync(tas2552->regmap);
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
|
||||||
|
static const struct dev_pm_ops tas2552_pm = {
|
||||||
|
SET_RUNTIME_PM_OPS(tas2552_runtime_suspend, tas2552_runtime_resume,
|
||||||
|
NULL)
|
||||||
|
};
|
||||||
|
|
||||||
|
static void tas2552_shutdown(struct snd_pcm_substream *substream,
|
||||||
|
struct snd_soc_dai *dai)
|
||||||
|
{
|
||||||
|
struct snd_soc_codec *codec = dai->codec;
|
||||||
|
|
||||||
|
snd_soc_update_bits(codec, TAS2552_CFG_2, TAS2552_PLL_ENABLE, 0);
|
||||||
|
}
|
||||||
|
|
||||||
|
static struct snd_soc_dai_ops tas2552_speaker_dai_ops = {
|
||||||
|
.hw_params = tas2552_hw_params,
|
||||||
|
.set_sysclk = tas2552_set_dai_sysclk,
|
||||||
|
.set_fmt = tas2552_set_dai_fmt,
|
||||||
|
.shutdown = tas2552_shutdown,
|
||||||
|
.digital_mute = tas2552_mute,
|
||||||
|
};
|
||||||
|
|
||||||
|
/* Formats supported by TAS2552 driver. */
|
||||||
|
#define TAS2552_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
|
||||||
|
SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
|
||||||
|
|
||||||
|
/* TAS2552 dai structure. */
|
||||||
|
static struct snd_soc_dai_driver tas2552_dai[] = {
|
||||||
|
{
|
||||||
|
.name = "tas2552-amplifier",
|
||||||
|
.playback = {
|
||||||
|
.stream_name = "Speaker",
|
||||||
|
.channels_min = 2,
|
||||||
|
.channels_max = 2,
|
||||||
|
.rates = SNDRV_PCM_RATE_8000_192000,
|
||||||
|
.formats = TAS2552_FORMATS,
|
||||||
|
},
|
||||||
|
.ops = &tas2552_speaker_dai_ops,
|
||||||
|
},
|
||||||
|
};
|
||||||
|
|
||||||
|
/*
|
||||||
|
* DAC digital volumes. From -7 to 24 dB in 1 dB steps
|
||||||
|
*/
|
||||||
|
static DECLARE_TLV_DB_SCALE(dac_tlv, -7, 100, 24);
|
||||||
|
|
||||||
|
static const struct snd_kcontrol_new tas2552_snd_controls[] = {
|
||||||
|
SOC_SINGLE_TLV("Speaker Driver Playback Volume",
|
||||||
|
TAS2552_PGA_GAIN, 0, 0x1f, 1, dac_tlv),
|
||||||
|
};
|
||||||
|
|
||||||
|
static const struct reg_default tas2552_init_regs[] = {
|
||||||
|
{ TAS2552_RESERVED_0D, 0xc0 },
|
||||||
|
};
|
||||||
|
|
||||||
|
static int tas2552_codec_probe(struct snd_soc_codec *codec)
|
||||||
|
{
|
||||||
|
struct tas2552_data *tas2552 = snd_soc_codec_get_drvdata(codec);
|
||||||
|
int ret;
|
||||||
|
|
||||||
|
tas2552->codec = codec;
|
||||||
|
|
||||||
|
ret = regulator_bulk_enable(ARRAY_SIZE(tas2552->supplies),
|
||||||
|
tas2552->supplies);
|
||||||
|
|
||||||
|
if (ret != 0) {
|
||||||
|
dev_err(codec->dev, "Failed to enable supplies: %d\n",
|
||||||
|
ret);
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (tas2552->enable_gpio)
|
||||||
|
gpiod_set_value(tas2552->enable_gpio, 1);
|
||||||
|
|
||||||
|
ret = pm_runtime_get_sync(codec->dev);
|
||||||
|
if (ret < 0) {
|
||||||
|
dev_err(codec->dev, "Enabling device failed: %d\n",
|
||||||
|
ret);
|
||||||
|
goto probe_fail;
|
||||||
|
}
|
||||||
|
|
||||||
|
snd_soc_write(codec, TAS2552_CFG_1, TAS2552_MUTE_MASK |
|
||||||
|
TAS2552_PLL_SRC_BCLK);
|
||||||
|
snd_soc_write(codec, TAS2552_CFG_3, TAS2552_I2S_OUT_SEL |
|
||||||
|
TAS2552_DIN_SRC_SEL_AVG_L_R | TAS2552_88_96KHZ);
|
||||||
|
snd_soc_write(codec, TAS2552_DOUT, TAS2552_PDM_DATA_I);
|
||||||
|
snd_soc_write(codec, TAS2552_OUTPUT_DATA, TAS2552_PDM_DATA_V_I | 0x8);
|
||||||
|
snd_soc_write(codec, TAS2552_PDM_CFG, TAS2552_PDM_BCLK_SEL);
|
||||||
|
snd_soc_write(codec, TAS2552_BOOST_PT_CTRL, TAS2552_APT_DELAY_200 |
|
||||||
|
TAS2552_APT_THRESH_2_1_7);
|
||||||
|
|
||||||
|
ret = regmap_register_patch(tas2552->regmap, tas2552_init_regs,
|
||||||
|
ARRAY_SIZE(tas2552_init_regs));
|
||||||
|
if (ret != 0) {
|
||||||
|
dev_err(codec->dev, "Failed to write init registers: %d\n",
|
||||||
|
ret);
|
||||||
|
goto patch_fail;
|
||||||
|
}
|
||||||
|
|
||||||
|
snd_soc_write(codec, TAS2552_CFG_2, TAS2552_CLASSD_EN |
|
||||||
|
TAS2552_BOOST_EN | TAS2552_APT_EN |
|
||||||
|
TAS2552_LIM_EN);
|
||||||
|
return 0;
|
||||||
|
|
||||||
|
patch_fail:
|
||||||
|
pm_runtime_put(codec->dev);
|
||||||
|
probe_fail:
|
||||||
|
if (tas2552->enable_gpio)
|
||||||
|
gpiod_set_value(tas2552->enable_gpio, 0);
|
||||||
|
|
||||||
|
regulator_bulk_disable(ARRAY_SIZE(tas2552->supplies),
|
||||||
|
tas2552->supplies);
|
||||||
|
return -EIO;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int tas2552_codec_remove(struct snd_soc_codec *codec)
|
||||||
|
{
|
||||||
|
struct tas2552_data *tas2552 = snd_soc_codec_get_drvdata(codec);
|
||||||
|
|
||||||
|
if (tas2552->enable_gpio)
|
||||||
|
gpiod_set_value(tas2552->enable_gpio, 0);
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
};
|
||||||
|
|
||||||
|
#ifdef CONFIG_PM
|
||||||
|
static int tas2552_suspend(struct snd_soc_codec *codec)
|
||||||
|
{
|
||||||
|
struct tas2552_data *tas2552 = snd_soc_codec_get_drvdata(codec);
|
||||||
|
int ret;
|
||||||
|
|
||||||
|
ret = regulator_bulk_disable(ARRAY_SIZE(tas2552->supplies),
|
||||||
|
tas2552->supplies);
|
||||||
|
|
||||||
|
if (ret != 0)
|
||||||
|
dev_err(codec->dev, "Failed to disable supplies: %d\n",
|
||||||
|
ret);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int tas2552_resume(struct snd_soc_codec *codec)
|
||||||
|
{
|
||||||
|
struct tas2552_data *tas2552 = snd_soc_codec_get_drvdata(codec);
|
||||||
|
int ret;
|
||||||
|
|
||||||
|
ret = regulator_bulk_enable(ARRAY_SIZE(tas2552->supplies),
|
||||||
|
tas2552->supplies);
|
||||||
|
|
||||||
|
if (ret != 0) {
|
||||||
|
dev_err(codec->dev, "Failed to enable supplies: %d\n",
|
||||||
|
ret);
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
#else
|
||||||
|
#define tas2552_suspend NULL
|
||||||
|
#define tas2552_resume NULL
|
||||||
|
#endif
|
||||||
|
|
||||||
|
static struct snd_soc_codec_driver soc_codec_dev_tas2552 = {
|
||||||
|
.probe = tas2552_codec_probe,
|
||||||
|
.remove = tas2552_codec_remove,
|
||||||
|
.suspend = tas2552_suspend,
|
||||||
|
.resume = tas2552_resume,
|
||||||
|
.controls = tas2552_snd_controls,
|
||||||
|
.num_controls = ARRAY_SIZE(tas2552_snd_controls),
|
||||||
|
};
|
||||||
|
|
||||||
|
static const struct regmap_config tas2552_regmap_config = {
|
||||||
|
.reg_bits = 8,
|
||||||
|
.val_bits = 8,
|
||||||
|
|
||||||
|
.max_register = TAS2552_MAX_REG,
|
||||||
|
.reg_defaults = tas2552_reg_defs,
|
||||||
|
.num_reg_defaults = ARRAY_SIZE(tas2552_reg_defs),
|
||||||
|
.cache_type = REGCACHE_RBTREE,
|
||||||
|
};
|
||||||
|
|
||||||
|
static int tas2552_probe(struct i2c_client *client,
|
||||||
|
const struct i2c_device_id *id)
|
||||||
|
{
|
||||||
|
struct device *dev;
|
||||||
|
struct tas2552_data *data;
|
||||||
|
int ret;
|
||||||
|
int i;
|
||||||
|
|
||||||
|
dev = &client->dev;
|
||||||
|
data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL);
|
||||||
|
if (data == NULL)
|
||||||
|
return -ENOMEM;
|
||||||
|
|
||||||
|
data->enable_gpio = devm_gpiod_get(dev, "enable");
|
||||||
|
if (IS_ERR(data->enable_gpio)) {
|
||||||
|
ret = PTR_ERR(data->enable_gpio);
|
||||||
|
if (ret != -ENOENT && ret != -ENOSYS)
|
||||||
|
return ret;
|
||||||
|
|
||||||
|
data->enable_gpio = NULL;
|
||||||
|
} else {
|
||||||
|
gpiod_direction_output(data->enable_gpio, 0);
|
||||||
|
}
|
||||||
|
|
||||||
|
data->tas2552_client = client;
|
||||||
|
data->regmap = devm_regmap_init_i2c(client, &tas2552_regmap_config);
|
||||||
|
if (IS_ERR(data->regmap)) {
|
||||||
|
ret = PTR_ERR(data->regmap);
|
||||||
|
dev_err(&client->dev, "Failed to allocate register map: %d\n",
|
||||||
|
ret);
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
for (i = 0; i < ARRAY_SIZE(data->supplies); i++)
|
||||||
|
data->supplies[i].supply = tas2552_supply_names[i];
|
||||||
|
|
||||||
|
ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(data->supplies),
|
||||||
|
data->supplies);
|
||||||
|
if (ret != 0)
|
||||||
|
dev_err(dev, "Failed to request supplies: %d\n", ret);
|
||||||
|
|
||||||
|
pm_runtime_set_active(&client->dev);
|
||||||
|
pm_runtime_set_autosuspend_delay(&client->dev, 1000);
|
||||||
|
pm_runtime_use_autosuspend(&client->dev);
|
||||||
|
pm_runtime_enable(&client->dev);
|
||||||
|
pm_runtime_mark_last_busy(&client->dev);
|
||||||
|
pm_runtime_put_sync_autosuspend(&client->dev);
|
||||||
|
|
||||||
|
dev_set_drvdata(&client->dev, data);
|
||||||
|
|
||||||
|
ret = snd_soc_register_codec(&client->dev,
|
||||||
|
&soc_codec_dev_tas2552,
|
||||||
|
tas2552_dai, ARRAY_SIZE(tas2552_dai));
|
||||||
|
if (ret < 0)
|
||||||
|
dev_err(&client->dev, "Failed to register codec: %d\n", ret);
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int tas2552_i2c_remove(struct i2c_client *client)
|
||||||
|
{
|
||||||
|
snd_soc_unregister_codec(&client->dev);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static const struct i2c_device_id tas2552_id[] = {
|
||||||
|
{ "tas2552", 0 },
|
||||||
|
{ }
|
||||||
|
};
|
||||||
|
MODULE_DEVICE_TABLE(i2c, tas2552_id);
|
||||||
|
|
||||||
|
#if IS_ENABLED(CONFIG_OF)
|
||||||
|
static const struct of_device_id tas2552_of_match[] = {
|
||||||
|
{ .compatible = "ti,tas2552", },
|
||||||
|
{},
|
||||||
|
};
|
||||||
|
MODULE_DEVICE_TABLE(of, tas2552_of_match);
|
||||||
|
#endif
|
||||||
|
|
||||||
|
static struct i2c_driver tas2552_i2c_driver = {
|
||||||
|
.driver = {
|
||||||
|
.name = "tas2552",
|
||||||
|
.owner = THIS_MODULE,
|
||||||
|
.of_match_table = of_match_ptr(tas2552_of_match),
|
||||||
|
.pm = &tas2552_pm,
|
||||||
|
},
|
||||||
|
.probe = tas2552_probe,
|
||||||
|
.remove = tas2552_i2c_remove,
|
||||||
|
.id_table = tas2552_id,
|
||||||
|
};
|
||||||
|
|
||||||
|
module_i2c_driver(tas2552_i2c_driver);
|
||||||
|
|
||||||
|
MODULE_AUTHOR("Dan Muprhy <dmurphy@ti.com>");
|
||||||
|
MODULE_DESCRIPTION("TAS2552 Audio amplifier driver");
|
||||||
|
MODULE_LICENSE("GPL");
|
||||||
|
|
@ -0,0 +1,129 @@
|
||||||
|
/*
|
||||||
|
* tas2552.h - ALSA SoC Texas Instruments TAS2552 Mono Audio Amplifier
|
||||||
|
*
|
||||||
|
* Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com
|
||||||
|
*
|
||||||
|
* Author: Dan Murphy <dmurphy@ti.com>
|
||||||
|
*
|
||||||
|
* This program is free software; you can redistribute it and/or
|
||||||
|
* modify it under the terms of the GNU General Public License
|
||||||
|
* version 2 as published by the Free Software Foundation.
|
||||||
|
*
|
||||||
|
* This program is distributed in the hope that it will be useful, but
|
||||||
|
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||||
|
* General Public License for more details.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifndef __TAS2552_H__
|
||||||
|
#define __TAS2552_H__
|
||||||
|
|
||||||
|
/* Register Address Map */
|
||||||
|
#define TAS2552_DEVICE_STATUS 0x00
|
||||||
|
#define TAS2552_CFG_1 0x01
|
||||||
|
#define TAS2552_CFG_2 0x02
|
||||||
|
#define TAS2552_CFG_3 0x03
|
||||||
|
#define TAS2552_DOUT 0x04
|
||||||
|
#define TAS2552_SER_CTRL_1 0x05
|
||||||
|
#define TAS2552_SER_CTRL_2 0x06
|
||||||
|
#define TAS2552_OUTPUT_DATA 0x07
|
||||||
|
#define TAS2552_PLL_CTRL_1 0x08
|
||||||
|
#define TAS2552_PLL_CTRL_2 0x09
|
||||||
|
#define TAS2552_PLL_CTRL_3 0x0a
|
||||||
|
#define TAS2552_BTIP 0x0b
|
||||||
|
#define TAS2552_BTS_CTRL 0x0c
|
||||||
|
#define TAS2552_RESERVED_0D 0x0d
|
||||||
|
#define TAS2552_LIMIT_RATE_HYS 0x0e
|
||||||
|
#define TAS2552_LIMIT_RELEASE 0x0f
|
||||||
|
#define TAS2552_LIMIT_INT_COUNT 0x10
|
||||||
|
#define TAS2552_PDM_CFG 0x11
|
||||||
|
#define TAS2552_PGA_GAIN 0x12
|
||||||
|
#define TAS2552_EDGE_RATE_CTRL 0x13
|
||||||
|
#define TAS2552_BOOST_PT_CTRL 0x14
|
||||||
|
#define TAS2552_VER_NUM 0x16
|
||||||
|
#define TAS2552_VBAT_DATA 0x19
|
||||||
|
#define TAS2552_MAX_REG 0x20
|
||||||
|
|
||||||
|
/* CFG1 Register Masks */
|
||||||
|
#define TAS2552_MUTE_MASK (1 << 2)
|
||||||
|
#define TAS2552_SWS_MASK (1 << 1)
|
||||||
|
#define TAS2552_WCLK_MASK 0x07
|
||||||
|
#define TAS2552_CLASSD_EN_MASK (1 << 7)
|
||||||
|
|
||||||
|
/* CFG2 Register Masks */
|
||||||
|
#define TAS2552_CLASSD_EN (1 << 7)
|
||||||
|
#define TAS2552_BOOST_EN (1 << 6)
|
||||||
|
#define TAS2552_APT_EN (1 << 5)
|
||||||
|
#define TAS2552_PLL_ENABLE (1 << 3)
|
||||||
|
#define TAS2552_LIM_EN (1 << 2)
|
||||||
|
#define TAS2552_IVSENSE_EN (1 << 1)
|
||||||
|
|
||||||
|
/* CFG3 Register Masks */
|
||||||
|
#define TAS2552_WORD_CLK_MASK (1 << 7)
|
||||||
|
#define TAS2552_BIT_CLK_MASK (1 << 6)
|
||||||
|
#define TAS2552_DATA_FORMAT_MASK (0x11 << 2)
|
||||||
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#define TAS2552_DAIFMT_I2S_MASK 0xf3
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#define TAS2552_DAIFMT_DSP (1 << 3)
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#define TAS2552_DAIFMT_RIGHT_J (1 << 4)
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#define TAS2552_DAIFMT_LEFT_J (0x11 << 3)
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#define TAS2552_PLL_SRC_MCLK 0x00
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#define TAS2552_PLL_SRC_BCLK (1 << 3)
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#define TAS2552_PLL_SRC_IVCLKIN (1 << 4)
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#define TAS2552_PLL_SRC_1_8_FIXED (0x11 << 3)
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#define TAS2552_DIN_SRC_SEL_MUTED 0x00
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#define TAS2552_DIN_SRC_SEL_LEFT (1 << 4)
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#define TAS2552_DIN_SRC_SEL_RIGHT (1 << 5)
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#define TAS2552_DIN_SRC_SEL_AVG_L_R (0x11 << 4)
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#define TAS2552_PDM_IN_SEL (1 << 5)
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|
#define TAS2552_I2S_OUT_SEL (1 << 6)
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|
#define TAS2552_ANALOG_IN_SEL (1 << 7)
|
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|
|
||||||
|
/* CFG3 WCLK Dividers */
|
||||||
|
#define TAS2552_8KHZ 0x00
|
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|
#define TAS2552_11_12KHZ (1 << 1)
|
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|
#define TAS2552_16KHZ (1 << 2)
|
||||||
|
#define TAS2552_22_24KHZ (1 << 3)
|
||||||
|
#define TAS2552_32KHZ (1 << 4)
|
||||||
|
#define TAS2552_44_48KHZ (1 << 5)
|
||||||
|
#define TAS2552_88_96KHZ (1 << 6)
|
||||||
|
#define TAS2552_176_192KHZ (1 << 7)
|
||||||
|
|
||||||
|
/* OUTPUT_DATA register */
|
||||||
|
#define TAS2552_PDM_DATA_I 0x00
|
||||||
|
#define TAS2552_PDM_DATA_V (1 << 6)
|
||||||
|
#define TAS2552_PDM_DATA_I_V (1 << 7)
|
||||||
|
#define TAS2552_PDM_DATA_V_I (0x11 << 6)
|
||||||
|
|
||||||
|
/* PDM CFG Register */
|
||||||
|
#define TAS2552_PDM_DATA_ES_RISE 0x4
|
||||||
|
|
||||||
|
#define TAS2552_PDM_PLL_CLK_SEL 0x00
|
||||||
|
#define TAS2552_PDM_IV_CLK_SEL (1 << 1)
|
||||||
|
#define TAS2552_PDM_BCLK_SEL (1 << 2)
|
||||||
|
#define TAS2552_PDM_MCLK_SEL (1 << 3)
|
||||||
|
|
||||||
|
/* Boost pass-through register */
|
||||||
|
#define TAS2552_APT_DELAY_50 0x00
|
||||||
|
#define TAS2552_APT_DELAY_75 (1 << 1)
|
||||||
|
#define TAS2552_APT_DELAY_125 (1 << 2)
|
||||||
|
#define TAS2552_APT_DELAY_200 (1 << 3)
|
||||||
|
|
||||||
|
#define TAS2552_APT_THRESH_2_5 0x00
|
||||||
|
#define TAS2552_APT_THRESH_1_7 (1 << 3)
|
||||||
|
#define TAS2552_APT_THRESH_1_4_1_1 (1 << 4)
|
||||||
|
#define TAS2552_APT_THRESH_2_1_7 (0x11 << 2)
|
||||||
|
|
||||||
|
/* PLL Control Register */
|
||||||
|
#define TAS2552_245MHZ_CLK 24576000
|
||||||
|
#define TAS2552_225MHZ_CLK 22579200
|
||||||
|
#define TAS2552_PLL_J_MASK 0x7f
|
||||||
|
#define TAS2552_PLL_D_UPPER_MASK 0x3f
|
||||||
|
#define TAS2552_PLL_D_LOWER_MASK 0xff
|
||||||
|
#define TAS2552_PLL_BYPASS_MASK 0x80
|
||||||
|
#define TAS2552_PLL_BYPASS 0x80
|
||||||
|
|
||||||
|
#endif
|
||||||
Loading…
Reference in New Issue