2019-06-04 02:11:33 -06:00
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// SPDX-License-Identifier: GPL-2.0-only
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2016-06-20 10:45:18 -06:00
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/*
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* cs35l33.c -- CS35L33 ALSA SoC audio driver
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*
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* Copyright 2016 Cirrus Logic, Inc.
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*
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* Author: Paul Handrigan <paul.handrigan@cirrus.com>
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*/
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/delay.h>
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#include <linux/i2c.h>
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#include <linux/slab.h>
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#include <linux/workqueue.h>
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#include <linux/platform_device.h>
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#include <sound/core.h>
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#include <sound/pcm.h>
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#include <sound/pcm_params.h>
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#include <sound/soc.h>
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#include <sound/soc-dapm.h>
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#include <sound/initval.h>
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#include <sound/tlv.h>
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#include <linux/gpio.h>
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#include <linux/gpio/consumer.h>
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#include <sound/cs35l33.h>
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#include <linux/pm_runtime.h>
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#include <linux/regulator/consumer.h>
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#include <linux/regulator/machine.h>
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#include <linux/of_gpio.h>
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#include <linux/of.h>
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#include <linux/of_device.h>
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#include <linux/of_irq.h>
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#include "cs35l33.h"
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#define CS35L33_BOOT_DELAY 50
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struct cs35l33_private {
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2018-01-28 20:55:16 -07:00
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struct snd_soc_component *component;
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2016-06-20 10:45:18 -06:00
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struct cs35l33_pdata pdata;
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struct regmap *regmap;
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struct gpio_desc *reset_gpio;
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bool amp_cal;
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int mclk_int;
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struct regulator_bulk_data core_supplies[2];
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int num_core_supplies;
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bool is_tdm_mode;
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bool enable_soft_ramp;
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};
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static const struct reg_default cs35l33_reg[] = {
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{CS35L33_PWRCTL1, 0x85},
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{CS35L33_PWRCTL2, 0xFE},
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{CS35L33_CLK_CTL, 0x0C},
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{CS35L33_BST_PEAK_CTL, 0x90},
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{CS35L33_PROTECT_CTL, 0x55},
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{CS35L33_BST_CTL1, 0x00},
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{CS35L33_BST_CTL2, 0x01},
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{CS35L33_ADSP_CTL, 0x00},
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{CS35L33_ADC_CTL, 0xC8},
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{CS35L33_DAC_CTL, 0x14},
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{CS35L33_DIG_VOL_CTL, 0x00},
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{CS35L33_CLASSD_CTL, 0x04},
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{CS35L33_AMP_CTL, 0x90},
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{CS35L33_INT_MASK_1, 0xFF},
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{CS35L33_INT_MASK_2, 0xFF},
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{CS35L33_DIAG_LOCK, 0x00},
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{CS35L33_DIAG_CTRL_1, 0x40},
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{CS35L33_DIAG_CTRL_2, 0x00},
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{CS35L33_HG_MEMLDO_CTL, 0x62},
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{CS35L33_HG_REL_RATE, 0x03},
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{CS35L33_LDO_DEL, 0x12},
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{CS35L33_HG_HEAD, 0x0A},
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{CS35L33_HG_EN, 0x05},
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{CS35L33_TX_VMON, 0x00},
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{CS35L33_TX_IMON, 0x03},
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{CS35L33_TX_VPMON, 0x02},
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{CS35L33_TX_VBSTMON, 0x05},
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{CS35L33_TX_FLAG, 0x06},
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{CS35L33_TX_EN1, 0x00},
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{CS35L33_TX_EN2, 0x00},
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{CS35L33_TX_EN3, 0x00},
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{CS35L33_TX_EN4, 0x00},
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{CS35L33_RX_AUD, 0x40},
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{CS35L33_RX_SPLY, 0x03},
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{CS35L33_RX_ALIVE, 0x04},
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{CS35L33_BST_CTL4, 0x63},
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};
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static const struct reg_sequence cs35l33_patch[] = {
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{ 0x00, 0x99, 0 },
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{ 0x59, 0x02, 0 },
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{ 0x52, 0x30, 0 },
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{ 0x39, 0x45, 0 },
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{ 0x57, 0x30, 0 },
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{ 0x2C, 0x68, 0 },
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{ 0x00, 0x00, 0 },
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};
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static bool cs35l33_volatile_register(struct device *dev, unsigned int reg)
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{
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switch (reg) {
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case CS35L33_DEVID_AB:
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case CS35L33_DEVID_CD:
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case CS35L33_DEVID_E:
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case CS35L33_REV_ID:
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case CS35L33_INT_STATUS_1:
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case CS35L33_INT_STATUS_2:
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case CS35L33_HG_STATUS:
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return true;
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default:
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return false;
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}
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}
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static bool cs35l33_writeable_register(struct device *dev, unsigned int reg)
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{
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switch (reg) {
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/* these are read only registers */
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case CS35L33_DEVID_AB:
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case CS35L33_DEVID_CD:
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case CS35L33_DEVID_E:
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case CS35L33_REV_ID:
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case CS35L33_INT_STATUS_1:
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case CS35L33_INT_STATUS_2:
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case CS35L33_HG_STATUS:
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return false;
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default:
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return true;
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}
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}
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static bool cs35l33_readable_register(struct device *dev, unsigned int reg)
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{
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switch (reg) {
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case CS35L33_DEVID_AB:
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case CS35L33_DEVID_CD:
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case CS35L33_DEVID_E:
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case CS35L33_REV_ID:
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case CS35L33_PWRCTL1:
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case CS35L33_PWRCTL2:
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case CS35L33_CLK_CTL:
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case CS35L33_BST_PEAK_CTL:
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case CS35L33_PROTECT_CTL:
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case CS35L33_BST_CTL1:
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case CS35L33_BST_CTL2:
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case CS35L33_ADSP_CTL:
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case CS35L33_ADC_CTL:
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case CS35L33_DAC_CTL:
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case CS35L33_DIG_VOL_CTL:
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case CS35L33_CLASSD_CTL:
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case CS35L33_AMP_CTL:
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case CS35L33_INT_MASK_1:
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case CS35L33_INT_MASK_2:
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case CS35L33_INT_STATUS_1:
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case CS35L33_INT_STATUS_2:
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case CS35L33_DIAG_LOCK:
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case CS35L33_DIAG_CTRL_1:
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case CS35L33_DIAG_CTRL_2:
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case CS35L33_HG_MEMLDO_CTL:
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case CS35L33_HG_REL_RATE:
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case CS35L33_LDO_DEL:
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case CS35L33_HG_HEAD:
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case CS35L33_HG_EN:
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case CS35L33_TX_VMON:
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case CS35L33_TX_IMON:
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case CS35L33_TX_VPMON:
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case CS35L33_TX_VBSTMON:
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case CS35L33_TX_FLAG:
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case CS35L33_TX_EN1:
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case CS35L33_TX_EN2:
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case CS35L33_TX_EN3:
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case CS35L33_TX_EN4:
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case CS35L33_RX_AUD:
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case CS35L33_RX_SPLY:
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case CS35L33_RX_ALIVE:
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case CS35L33_BST_CTL4:
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return true;
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default:
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return false;
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}
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}
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static DECLARE_TLV_DB_SCALE(classd_ctl_tlv, 900, 100, 0);
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static DECLARE_TLV_DB_SCALE(dac_tlv, -10200, 50, 0);
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static const struct snd_kcontrol_new cs35l33_snd_controls[] = {
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SOC_SINGLE_TLV("SPK Amp Volume", CS35L33_AMP_CTL,
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4, 0x09, 0, classd_ctl_tlv),
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SOC_SINGLE_SX_TLV("DAC Volume", CS35L33_DIG_VOL_CTL,
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0, 0x34, 0xE4, dac_tlv),
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};
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static int cs35l33_spkrdrv_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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2018-01-28 20:55:16 -07:00
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struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
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struct cs35l33_private *priv = snd_soc_component_get_drvdata(component);
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2016-06-20 10:45:18 -06:00
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switch (event) {
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case SND_SOC_DAPM_POST_PMU:
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if (!priv->amp_cal) {
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usleep_range(8000, 9000);
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priv->amp_cal = true;
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regmap_update_bits(priv->regmap, CS35L33_CLASSD_CTL,
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CS35L33_AMP_CAL, 0);
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2018-01-28 20:55:16 -07:00
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dev_dbg(component->dev, "Amp calibration done\n");
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2016-06-20 10:45:18 -06:00
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}
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2018-01-28 20:55:16 -07:00
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dev_dbg(component->dev, "Amp turned on\n");
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2016-06-20 10:45:18 -06:00
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break;
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case SND_SOC_DAPM_POST_PMD:
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2018-01-28 20:55:16 -07:00
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dev_dbg(component->dev, "Amp turned off\n");
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2016-06-20 10:45:18 -06:00
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break;
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default:
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2018-01-28 20:55:16 -07:00
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dev_err(component->dev, "Invalid event = 0x%x\n", event);
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2016-06-20 10:45:18 -06:00
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break;
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}
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return 0;
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}
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static int cs35l33_sdin_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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2018-01-28 20:55:16 -07:00
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struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
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struct cs35l33_private *priv = snd_soc_component_get_drvdata(component);
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2016-06-20 10:45:18 -06:00
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unsigned int val;
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switch (event) {
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case SND_SOC_DAPM_PRE_PMU:
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regmap_update_bits(priv->regmap, CS35L33_PWRCTL1,
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CS35L33_PDN_BST, 0);
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val = priv->is_tdm_mode ? 0 : CS35L33_PDN_TDM;
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regmap_update_bits(priv->regmap, CS35L33_PWRCTL2,
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CS35L33_PDN_TDM, val);
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2018-01-28 20:55:16 -07:00
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dev_dbg(component->dev, "BST turned on\n");
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2016-06-20 10:45:18 -06:00
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break;
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case SND_SOC_DAPM_POST_PMU:
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2018-01-28 20:55:16 -07:00
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dev_dbg(component->dev, "SDIN turned on\n");
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2016-06-20 10:45:18 -06:00
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if (!priv->amp_cal) {
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regmap_update_bits(priv->regmap, CS35L33_CLASSD_CTL,
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CS35L33_AMP_CAL, CS35L33_AMP_CAL);
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2018-01-28 20:55:16 -07:00
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dev_dbg(component->dev, "Amp calibration started\n");
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2016-06-20 10:45:18 -06:00
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usleep_range(10000, 11000);
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}
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break;
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case SND_SOC_DAPM_POST_PMD:
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regmap_update_bits(priv->regmap, CS35L33_PWRCTL2,
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CS35L33_PDN_TDM, CS35L33_PDN_TDM);
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usleep_range(4000, 4100);
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regmap_update_bits(priv->regmap, CS35L33_PWRCTL1,
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CS35L33_PDN_BST, CS35L33_PDN_BST);
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2018-01-28 20:55:16 -07:00
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dev_dbg(component->dev, "BST and SDIN turned off\n");
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2016-06-20 10:45:18 -06:00
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break;
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default:
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2018-01-28 20:55:16 -07:00
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dev_err(component->dev, "Invalid event = 0x%x\n", event);
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2016-06-20 10:45:18 -06:00
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}
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return 0;
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}
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static int cs35l33_sdout_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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2018-01-28 20:55:16 -07:00
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struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
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struct cs35l33_private *priv = snd_soc_component_get_drvdata(component);
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2016-06-20 10:45:18 -06:00
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unsigned int mask = CS35L33_SDOUT_3ST_I2S | CS35L33_PDN_TDM;
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unsigned int mask2 = CS35L33_SDOUT_3ST_TDM;
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unsigned int val, val2;
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switch (event) {
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case SND_SOC_DAPM_PRE_PMU:
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if (priv->is_tdm_mode) {
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/* set sdout_3st_i2s and reset pdn_tdm */
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val = CS35L33_SDOUT_3ST_I2S;
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/* reset sdout_3st_tdm */
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val2 = 0;
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} else {
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/* reset sdout_3st_i2s and set pdn_tdm */
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val = CS35L33_PDN_TDM;
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/* set sdout_3st_tdm */
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val2 = CS35L33_SDOUT_3ST_TDM;
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}
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2018-01-28 20:55:16 -07:00
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dev_dbg(component->dev, "SDOUT turned on\n");
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2016-06-20 10:45:18 -06:00
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break;
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case SND_SOC_DAPM_PRE_PMD:
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val = CS35L33_SDOUT_3ST_I2S | CS35L33_PDN_TDM;
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val2 = CS35L33_SDOUT_3ST_TDM;
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2018-01-28 20:55:16 -07:00
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dev_dbg(component->dev, "SDOUT turned off\n");
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2016-06-20 10:45:18 -06:00
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break;
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default:
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2018-01-28 20:55:16 -07:00
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dev_err(component->dev, "Invalid event = 0x%x\n", event);
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2016-06-20 10:45:18 -06:00
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return 0;
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}
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regmap_update_bits(priv->regmap, CS35L33_PWRCTL2,
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mask, val);
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regmap_update_bits(priv->regmap, CS35L33_CLK_CTL,
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mask2, val2);
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return 0;
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}
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static const struct snd_soc_dapm_widget cs35l33_dapm_widgets[] = {
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SND_SOC_DAPM_OUTPUT("SPK"),
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SND_SOC_DAPM_OUT_DRV_E("SPKDRV", CS35L33_PWRCTL1, 7, 1, NULL, 0,
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|
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cs35l33_spkrdrv_event,
|
|
|
|
SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
|
|
|
|
SND_SOC_DAPM_AIF_IN_E("SDIN", NULL, 0, CS35L33_PWRCTL2,
|
|
|
|
2, 1, cs35l33_sdin_event, SND_SOC_DAPM_PRE_PMU |
|
|
|
|
SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
|
|
|
|
|
|
|
|
SND_SOC_DAPM_INPUT("MON"),
|
|
|
|
|
|
|
|
SND_SOC_DAPM_ADC("VMON", NULL,
|
|
|
|
CS35L33_PWRCTL2, CS35L33_PDN_VMON_SHIFT, 1),
|
|
|
|
SND_SOC_DAPM_ADC("IMON", NULL,
|
|
|
|
CS35L33_PWRCTL2, CS35L33_PDN_IMON_SHIFT, 1),
|
|
|
|
SND_SOC_DAPM_ADC("VPMON", NULL,
|
|
|
|
CS35L33_PWRCTL2, CS35L33_PDN_VPMON_SHIFT, 1),
|
|
|
|
SND_SOC_DAPM_ADC("VBSTMON", NULL,
|
|
|
|
CS35L33_PWRCTL2, CS35L33_PDN_VBSTMON_SHIFT, 1),
|
|
|
|
|
|
|
|
SND_SOC_DAPM_AIF_OUT_E("SDOUT", NULL, 0, SND_SOC_NOPM, 0, 0,
|
|
|
|
cs35l33_sdout_event, SND_SOC_DAPM_PRE_PMU |
|
|
|
|
SND_SOC_DAPM_PRE_PMD),
|
|
|
|
};
|
|
|
|
|
|
|
|
static const struct snd_soc_dapm_route cs35l33_audio_map[] = {
|
|
|
|
{"SDIN", NULL, "CS35L33 Playback"},
|
|
|
|
{"SPKDRV", NULL, "SDIN"},
|
|
|
|
{"SPK", NULL, "SPKDRV"},
|
|
|
|
|
|
|
|
{"VMON", NULL, "MON"},
|
|
|
|
{"IMON", NULL, "MON"},
|
|
|
|
|
|
|
|
{"SDOUT", NULL, "VMON"},
|
|
|
|
{"SDOUT", NULL, "IMON"},
|
|
|
|
{"CS35L33 Capture", NULL, "SDOUT"},
|
|
|
|
};
|
|
|
|
|
|
|
|
static const struct snd_soc_dapm_route cs35l33_vphg_auto_route[] = {
|
|
|
|
{"SPKDRV", NULL, "VPMON"},
|
|
|
|
{"VPMON", NULL, "CS35L33 Playback"},
|
|
|
|
};
|
|
|
|
|
|
|
|
static const struct snd_soc_dapm_route cs35l33_vp_vbst_mon_route[] = {
|
|
|
|
{"SDOUT", NULL, "VPMON"},
|
|
|
|
{"VPMON", NULL, "MON"},
|
|
|
|
{"SDOUT", NULL, "VBSTMON"},
|
|
|
|
{"VBSTMON", NULL, "MON"},
|
|
|
|
};
|
|
|
|
|
2018-01-28 20:55:16 -07:00
|
|
|
static int cs35l33_set_bias_level(struct snd_soc_component *component,
|
2016-06-20 10:45:18 -06:00
|
|
|
enum snd_soc_bias_level level)
|
|
|
|
{
|
|
|
|
unsigned int val;
|
2018-01-28 20:55:16 -07:00
|
|
|
struct cs35l33_private *priv = snd_soc_component_get_drvdata(component);
|
2016-06-20 10:45:18 -06:00
|
|
|
|
|
|
|
switch (level) {
|
|
|
|
case SND_SOC_BIAS_ON:
|
|
|
|
break;
|
|
|
|
case SND_SOC_BIAS_PREPARE:
|
|
|
|
regmap_update_bits(priv->regmap, CS35L33_PWRCTL1,
|
|
|
|
CS35L33_PDN_ALL, 0);
|
|
|
|
regmap_update_bits(priv->regmap, CS35L33_CLK_CTL,
|
|
|
|
CS35L33_MCLKDIS, 0);
|
|
|
|
break;
|
|
|
|
case SND_SOC_BIAS_STANDBY:
|
|
|
|
regmap_update_bits(priv->regmap, CS35L33_PWRCTL1,
|
|
|
|
CS35L33_PDN_ALL, CS35L33_PDN_ALL);
|
|
|
|
regmap_read(priv->regmap, CS35L33_INT_STATUS_2, &val);
|
|
|
|
usleep_range(1000, 1100);
|
|
|
|
if (val & CS35L33_PDN_DONE)
|
|
|
|
regmap_update_bits(priv->regmap, CS35L33_CLK_CTL,
|
|
|
|
CS35L33_MCLKDIS, CS35L33_MCLKDIS);
|
|
|
|
break;
|
|
|
|
case SND_SOC_BIAS_OFF:
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
struct cs35l33_mclk_div {
|
|
|
|
int mclk;
|
|
|
|
int srate;
|
|
|
|
u8 adsp_rate;
|
|
|
|
u8 int_fs_ratio;
|
|
|
|
};
|
|
|
|
|
|
|
|
static const struct cs35l33_mclk_div cs35l33_mclk_coeffs[] = {
|
|
|
|
/* MCLK, Sample Rate, adsp_rate, int_fs_ratio */
|
|
|
|
{5644800, 11025, 0x4, CS35L33_INT_FS_RATE},
|
|
|
|
{5644800, 22050, 0x8, CS35L33_INT_FS_RATE},
|
|
|
|
{5644800, 44100, 0xC, CS35L33_INT_FS_RATE},
|
|
|
|
|
|
|
|
{6000000, 8000, 0x1, 0},
|
|
|
|
{6000000, 11025, 0x2, 0},
|
|
|
|
{6000000, 11029, 0x3, 0},
|
|
|
|
{6000000, 12000, 0x4, 0},
|
|
|
|
{6000000, 16000, 0x5, 0},
|
|
|
|
{6000000, 22050, 0x6, 0},
|
|
|
|
{6000000, 22059, 0x7, 0},
|
|
|
|
{6000000, 24000, 0x8, 0},
|
|
|
|
{6000000, 32000, 0x9, 0},
|
|
|
|
{6000000, 44100, 0xA, 0},
|
|
|
|
{6000000, 44118, 0xB, 0},
|
|
|
|
{6000000, 48000, 0xC, 0},
|
|
|
|
|
|
|
|
{6144000, 8000, 0x1, CS35L33_INT_FS_RATE},
|
|
|
|
{6144000, 12000, 0x4, CS35L33_INT_FS_RATE},
|
|
|
|
{6144000, 16000, 0x5, CS35L33_INT_FS_RATE},
|
|
|
|
{6144000, 24000, 0x8, CS35L33_INT_FS_RATE},
|
|
|
|
{6144000, 32000, 0x9, CS35L33_INT_FS_RATE},
|
|
|
|
{6144000, 48000, 0xC, CS35L33_INT_FS_RATE},
|
|
|
|
};
|
|
|
|
|
|
|
|
static int cs35l33_get_mclk_coeff(int mclk, int srate)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
|
|
|
|
for (i = 0; i < ARRAY_SIZE(cs35l33_mclk_coeffs); i++) {
|
|
|
|
if (cs35l33_mclk_coeffs[i].mclk == mclk &&
|
|
|
|
cs35l33_mclk_coeffs[i].srate == srate)
|
|
|
|
return i;
|
|
|
|
}
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int cs35l33_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
|
|
|
|
{
|
2018-01-28 20:55:16 -07:00
|
|
|
struct snd_soc_component *component = codec_dai->component;
|
|
|
|
struct cs35l33_private *priv = snd_soc_component_get_drvdata(component);
|
2016-06-20 10:45:18 -06:00
|
|
|
|
|
|
|
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
|
|
|
|
case SND_SOC_DAIFMT_CBM_CFM:
|
|
|
|
regmap_update_bits(priv->regmap, CS35L33_ADSP_CTL,
|
|
|
|
CS35L33_MS_MASK, CS35L33_MS_MASK);
|
2018-01-28 20:55:16 -07:00
|
|
|
dev_dbg(component->dev, "Audio port in master mode\n");
|
2016-06-20 10:45:18 -06:00
|
|
|
break;
|
|
|
|
case SND_SOC_DAIFMT_CBS_CFS:
|
|
|
|
regmap_update_bits(priv->regmap, CS35L33_ADSP_CTL,
|
|
|
|
CS35L33_MS_MASK, 0);
|
2018-01-28 20:55:16 -07:00
|
|
|
dev_dbg(component->dev, "Audio port in slave mode\n");
|
2016-06-20 10:45:18 -06:00
|
|
|
break;
|
|
|
|
default:
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
|
|
|
|
case SND_SOC_DAIFMT_DSP_A:
|
|
|
|
/*
|
|
|
|
* tdm mode in cs35l33 resembles dsp-a mode very
|
|
|
|
* closely, it is dsp-a with fsync shifted left by half bclk
|
|
|
|
*/
|
|
|
|
priv->is_tdm_mode = true;
|
2018-01-28 20:55:16 -07:00
|
|
|
dev_dbg(component->dev, "Audio port in TDM mode\n");
|
2016-06-20 10:45:18 -06:00
|
|
|
break;
|
|
|
|
case SND_SOC_DAIFMT_I2S:
|
|
|
|
priv->is_tdm_mode = false;
|
2018-01-28 20:55:16 -07:00
|
|
|
dev_dbg(component->dev, "Audio port in I2S mode\n");
|
2016-06-20 10:45:18 -06:00
|
|
|
break;
|
|
|
|
default:
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int cs35l33_pcm_hw_params(struct snd_pcm_substream *substream,
|
|
|
|
struct snd_pcm_hw_params *params,
|
|
|
|
struct snd_soc_dai *dai)
|
|
|
|
{
|
2018-01-28 20:55:16 -07:00
|
|
|
struct snd_soc_component *component = dai->component;
|
|
|
|
struct cs35l33_private *priv = snd_soc_component_get_drvdata(component);
|
2016-06-20 10:45:18 -06:00
|
|
|
int sample_size = params_width(params);
|
|
|
|
int coeff = cs35l33_get_mclk_coeff(priv->mclk_int, params_rate(params));
|
|
|
|
|
|
|
|
if (coeff < 0)
|
|
|
|
return coeff;
|
|
|
|
|
|
|
|
regmap_update_bits(priv->regmap, CS35L33_CLK_CTL,
|
|
|
|
CS35L33_ADSP_FS | CS35L33_INT_FS_RATE,
|
|
|
|
cs35l33_mclk_coeffs[coeff].int_fs_ratio
|
|
|
|
| cs35l33_mclk_coeffs[coeff].adsp_rate);
|
|
|
|
|
|
|
|
if (priv->is_tdm_mode) {
|
|
|
|
sample_size = (sample_size / 8) - 1;
|
|
|
|
if (sample_size > 2)
|
|
|
|
sample_size = 2;
|
|
|
|
regmap_update_bits(priv->regmap, CS35L33_RX_AUD,
|
|
|
|
CS35L33_AUDIN_RX_DEPTH,
|
|
|
|
sample_size << CS35L33_AUDIN_RX_DEPTH_SHIFT);
|
|
|
|
}
|
|
|
|
|
2018-01-28 20:55:16 -07:00
|
|
|
dev_dbg(component->dev, "sample rate=%d, bits per sample=%d\n",
|
2016-06-20 10:45:18 -06:00
|
|
|
params_rate(params), params_width(params));
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static const unsigned int cs35l33_src_rates[] = {
|
|
|
|
8000, 11025, 11029, 12000, 16000, 22050,
|
|
|
|
22059, 24000, 32000, 44100, 44118, 48000
|
|
|
|
};
|
|
|
|
|
|
|
|
static const struct snd_pcm_hw_constraint_list cs35l33_constraints = {
|
|
|
|
.count = ARRAY_SIZE(cs35l33_src_rates),
|
|
|
|
.list = cs35l33_src_rates,
|
|
|
|
};
|
|
|
|
|
|
|
|
static int cs35l33_pcm_startup(struct snd_pcm_substream *substream,
|
|
|
|
struct snd_soc_dai *dai)
|
|
|
|
{
|
|
|
|
snd_pcm_hw_constraint_list(substream->runtime, 0,
|
|
|
|
SNDRV_PCM_HW_PARAM_RATE,
|
|
|
|
&cs35l33_constraints);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int cs35l33_set_tristate(struct snd_soc_dai *dai, int tristate)
|
|
|
|
{
|
2018-01-28 20:55:16 -07:00
|
|
|
struct snd_soc_component *component = dai->component;
|
|
|
|
struct cs35l33_private *priv = snd_soc_component_get_drvdata(component);
|
2016-06-20 10:45:18 -06:00
|
|
|
|
|
|
|
if (tristate) {
|
|
|
|
regmap_update_bits(priv->regmap, CS35L33_PWRCTL2,
|
|
|
|
CS35L33_SDOUT_3ST_I2S, CS35L33_SDOUT_3ST_I2S);
|
|
|
|
regmap_update_bits(priv->regmap, CS35L33_CLK_CTL,
|
|
|
|
CS35L33_SDOUT_3ST_TDM, CS35L33_SDOUT_3ST_TDM);
|
|
|
|
} else {
|
|
|
|
regmap_update_bits(priv->regmap, CS35L33_PWRCTL2,
|
|
|
|
CS35L33_SDOUT_3ST_I2S, 0);
|
|
|
|
regmap_update_bits(priv->regmap, CS35L33_CLK_CTL,
|
|
|
|
CS35L33_SDOUT_3ST_TDM, 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int cs35l33_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
|
|
|
|
unsigned int rx_mask, int slots, int slot_width)
|
|
|
|
{
|
2018-01-28 20:55:16 -07:00
|
|
|
struct snd_soc_component *component = dai->component;
|
|
|
|
struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
|
|
|
|
struct cs35l33_private *priv = snd_soc_component_get_drvdata(component);
|
2016-06-20 10:45:18 -06:00
|
|
|
unsigned int reg, bit_pos, i;
|
|
|
|
int slot, slot_num;
|
|
|
|
|
|
|
|
if (slot_width != 8)
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
/* scan rx_mask for aud slot */
|
|
|
|
slot = ffs(rx_mask) - 1;
|
|
|
|
if (slot >= 0) {
|
|
|
|
regmap_update_bits(priv->regmap, CS35L33_RX_AUD,
|
|
|
|
CS35L33_X_LOC, slot);
|
2018-01-28 20:55:16 -07:00
|
|
|
dev_dbg(component->dev, "Audio starts from slots %d", slot);
|
2016-06-20 10:45:18 -06:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* scan tx_mask: vmon(2 slots); imon (2 slots);
|
|
|
|
* vpmon (1 slot) vbstmon (1 slot)
|
|
|
|
*/
|
|
|
|
slot = ffs(tx_mask) - 1;
|
|
|
|
slot_num = 0;
|
|
|
|
|
|
|
|
for (i = 0; i < 2 ; i++) {
|
|
|
|
/* disable vpmon/vbstmon: enable later if set in tx_mask */
|
|
|
|
regmap_update_bits(priv->regmap, CS35L33_TX_VPMON + i,
|
|
|
|
CS35L33_X_STATE | CS35L33_X_LOC, CS35L33_X_STATE
|
|
|
|
| CS35L33_X_LOC);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* disconnect {vp,vbst}_mon routes: eanble later if set in tx_mask*/
|
|
|
|
snd_soc_dapm_del_routes(dapm, cs35l33_vp_vbst_mon_route,
|
|
|
|
ARRAY_SIZE(cs35l33_vp_vbst_mon_route));
|
|
|
|
|
|
|
|
while (slot >= 0) {
|
|
|
|
/* configure VMON_TX_LOC */
|
|
|
|
if (slot_num == 0) {
|
|
|
|
regmap_update_bits(priv->regmap, CS35L33_TX_VMON,
|
|
|
|
CS35L33_X_STATE | CS35L33_X_LOC, slot);
|
2018-01-28 20:55:16 -07:00
|
|
|
dev_dbg(component->dev, "VMON enabled in slots %d-%d",
|
2016-06-20 10:45:18 -06:00
|
|
|
slot, slot + 1);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* configure IMON_TX_LOC */
|
|
|
|
if (slot_num == 3) {
|
|
|
|
regmap_update_bits(priv->regmap, CS35L33_TX_IMON,
|
|
|
|
CS35L33_X_STATE | CS35L33_X_LOC, slot);
|
2018-01-28 20:55:16 -07:00
|
|
|
dev_dbg(component->dev, "IMON enabled in slots %d-%d",
|
2016-06-20 10:45:18 -06:00
|
|
|
slot, slot + 1);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* configure VPMON_TX_LOC */
|
|
|
|
if (slot_num == 4) {
|
|
|
|
regmap_update_bits(priv->regmap, CS35L33_TX_VPMON,
|
|
|
|
CS35L33_X_STATE | CS35L33_X_LOC, slot);
|
|
|
|
snd_soc_dapm_add_routes(dapm,
|
|
|
|
&cs35l33_vp_vbst_mon_route[0], 2);
|
2018-01-28 20:55:16 -07:00
|
|
|
dev_dbg(component->dev, "VPMON enabled in slots %d", slot);
|
2016-06-20 10:45:18 -06:00
|
|
|
}
|
|
|
|
|
|
|
|
/* configure VBSTMON_TX_LOC */
|
|
|
|
if (slot_num == 5) {
|
|
|
|
regmap_update_bits(priv->regmap, CS35L33_TX_VBSTMON,
|
|
|
|
CS35L33_X_STATE | CS35L33_X_LOC, slot);
|
|
|
|
snd_soc_dapm_add_routes(dapm,
|
|
|
|
&cs35l33_vp_vbst_mon_route[2], 2);
|
2018-01-28 20:55:16 -07:00
|
|
|
dev_dbg(component->dev,
|
2016-06-20 10:45:18 -06:00
|
|
|
"VBSTMON enabled in slots %d", slot);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Enable the relevant tx slot */
|
|
|
|
reg = CS35L33_TX_EN4 - (slot/8);
|
|
|
|
bit_pos = slot - ((slot / 8) * (8));
|
|
|
|
regmap_update_bits(priv->regmap, reg,
|
|
|
|
1 << bit_pos, 1 << bit_pos);
|
|
|
|
|
|
|
|
tx_mask &= ~(1 << slot);
|
|
|
|
slot = ffs(tx_mask) - 1;
|
|
|
|
slot_num++;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2018-01-28 20:55:16 -07:00
|
|
|
static int cs35l33_component_set_sysclk(struct snd_soc_component *component,
|
2016-06-20 10:45:18 -06:00
|
|
|
int clk_id, int source, unsigned int freq, int dir)
|
|
|
|
{
|
2018-01-28 20:55:16 -07:00
|
|
|
struct cs35l33_private *cs35l33 = snd_soc_component_get_drvdata(component);
|
2016-06-20 10:45:18 -06:00
|
|
|
|
|
|
|
switch (freq) {
|
|
|
|
case CS35L33_MCLK_5644:
|
|
|
|
case CS35L33_MCLK_6:
|
|
|
|
case CS35L33_MCLK_6144:
|
|
|
|
regmap_update_bits(cs35l33->regmap, CS35L33_CLK_CTL,
|
|
|
|
CS35L33_MCLKDIV2, 0);
|
|
|
|
cs35l33->mclk_int = freq;
|
|
|
|
break;
|
|
|
|
case CS35L33_MCLK_11289:
|
|
|
|
case CS35L33_MCLK_12:
|
|
|
|
case CS35L33_MCLK_12288:
|
|
|
|
regmap_update_bits(cs35l33->regmap, CS35L33_CLK_CTL,
|
|
|
|
CS35L33_MCLKDIV2, CS35L33_MCLKDIV2);
|
|
|
|
cs35l33->mclk_int = freq/2;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
cs35l33->mclk_int = 0;
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
2018-01-28 20:55:16 -07:00
|
|
|
dev_dbg(component->dev, "external mclk freq=%d, internal mclk freq=%d\n",
|
2016-06-20 10:45:18 -06:00
|
|
|
freq, cs35l33->mclk_int);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static const struct snd_soc_dai_ops cs35l33_ops = {
|
|
|
|
.startup = cs35l33_pcm_startup,
|
|
|
|
.set_tristate = cs35l33_set_tristate,
|
|
|
|
.set_fmt = cs35l33_set_dai_fmt,
|
|
|
|
.hw_params = cs35l33_pcm_hw_params,
|
|
|
|
.set_tdm_slot = cs35l33_set_tdm_slot,
|
|
|
|
};
|
|
|
|
|
|
|
|
static struct snd_soc_dai_driver cs35l33_dai = {
|
|
|
|
.name = "cs35l33-dai",
|
|
|
|
.id = 0,
|
|
|
|
.playback = {
|
|
|
|
.stream_name = "CS35L33 Playback",
|
|
|
|
.channels_min = 1,
|
|
|
|
.channels_max = 1,
|
|
|
|
.rates = CS35L33_RATES,
|
|
|
|
.formats = CS35L33_FORMATS,
|
|
|
|
},
|
|
|
|
.capture = {
|
|
|
|
.stream_name = "CS35L33 Capture",
|
|
|
|
.channels_min = 2,
|
|
|
|
.channels_max = 2,
|
|
|
|
.rates = CS35L33_RATES,
|
|
|
|
.formats = CS35L33_FORMATS,
|
|
|
|
},
|
|
|
|
.ops = &cs35l33_ops,
|
|
|
|
.symmetric_rates = 1,
|
|
|
|
};
|
|
|
|
|
2018-01-28 20:55:16 -07:00
|
|
|
static int cs35l33_set_hg_data(struct snd_soc_component *component,
|
2016-06-20 10:45:18 -06:00
|
|
|
struct cs35l33_pdata *pdata)
|
|
|
|
{
|
|
|
|
struct cs35l33_hg *hg_config = &pdata->hg_config;
|
2018-01-28 20:55:16 -07:00
|
|
|
struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
|
|
|
|
struct cs35l33_private *priv = snd_soc_component_get_drvdata(component);
|
2016-06-20 10:45:18 -06:00
|
|
|
|
|
|
|
if (hg_config->enable_hg_algo) {
|
|
|
|
regmap_update_bits(priv->regmap, CS35L33_HG_MEMLDO_CTL,
|
|
|
|
CS35L33_MEM_DEPTH_MASK,
|
|
|
|
hg_config->mem_depth << CS35L33_MEM_DEPTH_SHIFT);
|
|
|
|
regmap_write(priv->regmap, CS35L33_HG_REL_RATE,
|
|
|
|
hg_config->release_rate);
|
|
|
|
regmap_update_bits(priv->regmap, CS35L33_HG_HEAD,
|
|
|
|
CS35L33_HD_RM_MASK,
|
|
|
|
hg_config->hd_rm << CS35L33_HD_RM_SHIFT);
|
|
|
|
regmap_update_bits(priv->regmap, CS35L33_HG_MEMLDO_CTL,
|
|
|
|
CS35L33_LDO_THLD_MASK,
|
|
|
|
hg_config->ldo_thld << CS35L33_LDO_THLD_SHIFT);
|
|
|
|
regmap_update_bits(priv->regmap, CS35L33_HG_MEMLDO_CTL,
|
|
|
|
CS35L33_LDO_DISABLE_MASK,
|
|
|
|
hg_config->ldo_path_disable <<
|
|
|
|
CS35L33_LDO_DISABLE_SHIFT);
|
|
|
|
regmap_update_bits(priv->regmap, CS35L33_LDO_DEL,
|
|
|
|
CS35L33_LDO_ENTRY_DELAY_MASK,
|
|
|
|
hg_config->ldo_entry_delay <<
|
|
|
|
CS35L33_LDO_ENTRY_DELAY_SHIFT);
|
|
|
|
if (hg_config->vp_hg_auto) {
|
|
|
|
regmap_update_bits(priv->regmap, CS35L33_HG_EN,
|
|
|
|
CS35L33_VP_HG_AUTO_MASK,
|
|
|
|
CS35L33_VP_HG_AUTO_MASK);
|
|
|
|
snd_soc_dapm_add_routes(dapm, cs35l33_vphg_auto_route,
|
|
|
|
ARRAY_SIZE(cs35l33_vphg_auto_route));
|
|
|
|
}
|
|
|
|
regmap_update_bits(priv->regmap, CS35L33_HG_EN,
|
|
|
|
CS35L33_VP_HG_MASK,
|
|
|
|
hg_config->vp_hg << CS35L33_VP_HG_SHIFT);
|
|
|
|
regmap_update_bits(priv->regmap, CS35L33_LDO_DEL,
|
|
|
|
CS35L33_VP_HG_RATE_MASK,
|
|
|
|
hg_config->vp_hg_rate << CS35L33_VP_HG_RATE_SHIFT);
|
|
|
|
regmap_update_bits(priv->regmap, CS35L33_LDO_DEL,
|
|
|
|
CS35L33_VP_HG_VA_MASK,
|
|
|
|
hg_config->vp_hg_va << CS35L33_VP_HG_VA_SHIFT);
|
|
|
|
regmap_update_bits(priv->regmap, CS35L33_HG_EN,
|
|
|
|
CS35L33_CLASS_HG_EN_MASK, CS35L33_CLASS_HG_EN_MASK);
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2018-01-28 20:55:16 -07:00
|
|
|
static int cs35l33_set_bst_ipk(struct snd_soc_component *component, unsigned int bst)
|
2016-06-20 10:45:18 -06:00
|
|
|
{
|
2018-01-28 20:55:16 -07:00
|
|
|
struct cs35l33_private *cs35l33 = snd_soc_component_get_drvdata(component);
|
2016-06-20 10:45:18 -06:00
|
|
|
int ret = 0, steps = 0;
|
|
|
|
|
|
|
|
/* Boost current in uA */
|
|
|
|
if (bst > 3600000 || bst < 1850000) {
|
2018-01-28 20:55:16 -07:00
|
|
|
dev_err(component->dev, "Invalid boost current %d\n", bst);
|
2016-06-20 10:45:18 -06:00
|
|
|
ret = -EINVAL;
|
|
|
|
goto err;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (bst % 15625) {
|
2018-01-28 20:55:16 -07:00
|
|
|
dev_err(component->dev, "Current not a multiple of 15625uA (%d)\n",
|
2016-06-20 10:45:18 -06:00
|
|
|
bst);
|
|
|
|
ret = -EINVAL;
|
|
|
|
goto err;
|
|
|
|
}
|
|
|
|
|
|
|
|
while (bst > 1850000) {
|
|
|
|
bst -= 15625;
|
|
|
|
steps++;
|
|
|
|
}
|
|
|
|
|
|
|
|
regmap_write(cs35l33->regmap, CS35L33_BST_PEAK_CTL,
|
|
|
|
steps+0x70);
|
|
|
|
|
|
|
|
err:
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
2018-01-28 20:55:16 -07:00
|
|
|
static int cs35l33_probe(struct snd_soc_component *component)
|
2016-06-20 10:45:18 -06:00
|
|
|
{
|
2018-01-28 20:55:16 -07:00
|
|
|
struct cs35l33_private *cs35l33 = snd_soc_component_get_drvdata(component);
|
2016-06-20 10:45:18 -06:00
|
|
|
|
2018-01-28 20:55:16 -07:00
|
|
|
cs35l33->component = component;
|
|
|
|
pm_runtime_get_sync(component->dev);
|
2016-06-20 10:45:18 -06:00
|
|
|
|
|
|
|
regmap_update_bits(cs35l33->regmap, CS35L33_PROTECT_CTL,
|
|
|
|
CS35L33_ALIVE_WD_DIS, 0x8);
|
|
|
|
regmap_update_bits(cs35l33->regmap, CS35L33_BST_CTL2,
|
|
|
|
CS35L33_ALIVE_WD_DIS2,
|
|
|
|
CS35L33_ALIVE_WD_DIS2);
|
|
|
|
|
|
|
|
/* Set Platform Data */
|
|
|
|
regmap_update_bits(cs35l33->regmap, CS35L33_BST_CTL1,
|
|
|
|
CS35L33_BST_CTL_MASK, cs35l33->pdata.boost_ctl);
|
|
|
|
regmap_update_bits(cs35l33->regmap, CS35L33_CLASSD_CTL,
|
|
|
|
CS35L33_AMP_DRV_SEL_MASK,
|
|
|
|
cs35l33->pdata.amp_drv_sel << CS35L33_AMP_DRV_SEL_SHIFT);
|
|
|
|
|
|
|
|
if (cs35l33->pdata.boost_ipk)
|
2018-01-28 20:55:16 -07:00
|
|
|
cs35l33_set_bst_ipk(component, cs35l33->pdata.boost_ipk);
|
2016-06-20 10:45:18 -06:00
|
|
|
|
|
|
|
if (cs35l33->enable_soft_ramp) {
|
2018-01-28 20:55:16 -07:00
|
|
|
snd_soc_component_update_bits(component, CS35L33_DAC_CTL,
|
2016-06-20 10:45:18 -06:00
|
|
|
CS35L33_DIGSFT, CS35L33_DIGSFT);
|
2018-01-28 20:55:16 -07:00
|
|
|
snd_soc_component_update_bits(component, CS35L33_DAC_CTL,
|
2016-06-20 10:45:18 -06:00
|
|
|
CS35L33_DSR_RATE, cs35l33->pdata.ramp_rate);
|
|
|
|
} else {
|
2018-01-28 20:55:16 -07:00
|
|
|
snd_soc_component_update_bits(component, CS35L33_DAC_CTL,
|
2016-06-20 10:45:18 -06:00
|
|
|
CS35L33_DIGSFT, 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* update IMON scaling rate if different from default of 0x8 */
|
|
|
|
if (cs35l33->pdata.imon_adc_scale != 0x8)
|
2018-01-28 20:55:16 -07:00
|
|
|
snd_soc_component_update_bits(component, CS35L33_ADC_CTL,
|
2016-06-20 10:45:18 -06:00
|
|
|
CS35L33_IMON_SCALE, cs35l33->pdata.imon_adc_scale);
|
|
|
|
|
2018-01-28 20:55:16 -07:00
|
|
|
cs35l33_set_hg_data(component, &(cs35l33->pdata));
|
2016-06-20 10:45:18 -06:00
|
|
|
|
|
|
|
/*
|
|
|
|
* unmask important interrupts that causes the chip to enter
|
|
|
|
* speaker safe mode and hence deserves user attention
|
|
|
|
*/
|
|
|
|
regmap_update_bits(cs35l33->regmap, CS35L33_INT_MASK_1,
|
|
|
|
CS35L33_M_OTE | CS35L33_M_OTW | CS35L33_M_AMP_SHORT |
|
|
|
|
CS35L33_M_CAL_ERR, 0);
|
|
|
|
|
2018-01-28 20:55:16 -07:00
|
|
|
pm_runtime_put_sync(component->dev);
|
2016-06-20 10:45:18 -06:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2018-01-28 20:55:16 -07:00
|
|
|
static const struct snd_soc_component_driver soc_component_dev_cs35l33 = {
|
|
|
|
.probe = cs35l33_probe,
|
|
|
|
.set_bias_level = cs35l33_set_bias_level,
|
|
|
|
.set_sysclk = cs35l33_component_set_sysclk,
|
|
|
|
.controls = cs35l33_snd_controls,
|
|
|
|
.num_controls = ARRAY_SIZE(cs35l33_snd_controls),
|
|
|
|
.dapm_widgets = cs35l33_dapm_widgets,
|
|
|
|
.num_dapm_widgets = ARRAY_SIZE(cs35l33_dapm_widgets),
|
|
|
|
.dapm_routes = cs35l33_audio_map,
|
|
|
|
.num_dapm_routes = ARRAY_SIZE(cs35l33_audio_map),
|
|
|
|
.use_pmdown_time = 1,
|
|
|
|
.endianness = 1,
|
|
|
|
.non_legacy_dai_naming = 1,
|
2016-06-20 10:45:18 -06:00
|
|
|
};
|
|
|
|
|
|
|
|
static const struct regmap_config cs35l33_regmap = {
|
|
|
|
.reg_bits = 8,
|
|
|
|
.val_bits = 8,
|
|
|
|
|
|
|
|
.max_register = CS35L33_MAX_REGISTER,
|
|
|
|
.reg_defaults = cs35l33_reg,
|
|
|
|
.num_reg_defaults = ARRAY_SIZE(cs35l33_reg),
|
|
|
|
.volatile_reg = cs35l33_volatile_register,
|
|
|
|
.readable_reg = cs35l33_readable_register,
|
|
|
|
.writeable_reg = cs35l33_writeable_register,
|
|
|
|
.cache_type = REGCACHE_RBTREE,
|
2018-09-01 10:50:41 -06:00
|
|
|
.use_single_read = true,
|
|
|
|
.use_single_write = true,
|
2016-06-20 10:45:18 -06:00
|
|
|
};
|
|
|
|
|
2016-06-29 08:33:17 -06:00
|
|
|
static int __maybe_unused cs35l33_runtime_resume(struct device *dev)
|
2016-06-20 10:45:18 -06:00
|
|
|
{
|
|
|
|
struct cs35l33_private *cs35l33 = dev_get_drvdata(dev);
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
dev_dbg(dev, "%s\n", __func__);
|
|
|
|
|
2017-07-16 15:11:09 -06:00
|
|
|
gpiod_set_value_cansleep(cs35l33->reset_gpio, 0);
|
2016-06-20 10:45:18 -06:00
|
|
|
|
|
|
|
ret = regulator_bulk_enable(cs35l33->num_core_supplies,
|
|
|
|
cs35l33->core_supplies);
|
|
|
|
if (ret != 0) {
|
|
|
|
dev_err(dev, "Failed to enable core supplies: %d\n", ret);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
regcache_cache_only(cs35l33->regmap, false);
|
|
|
|
|
2017-07-16 15:11:09 -06:00
|
|
|
gpiod_set_value_cansleep(cs35l33->reset_gpio, 1);
|
2016-06-20 10:45:18 -06:00
|
|
|
|
|
|
|
msleep(CS35L33_BOOT_DELAY);
|
|
|
|
|
|
|
|
ret = regcache_sync(cs35l33->regmap);
|
|
|
|
if (ret != 0) {
|
|
|
|
dev_err(dev, "Failed to restore register cache\n");
|
|
|
|
goto err;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
err:
|
|
|
|
regcache_cache_only(cs35l33->regmap, true);
|
|
|
|
regulator_bulk_disable(cs35l33->num_core_supplies,
|
|
|
|
cs35l33->core_supplies);
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
2016-06-29 08:33:17 -06:00
|
|
|
static int __maybe_unused cs35l33_runtime_suspend(struct device *dev)
|
2016-06-20 10:45:18 -06:00
|
|
|
{
|
|
|
|
struct cs35l33_private *cs35l33 = dev_get_drvdata(dev);
|
|
|
|
|
|
|
|
dev_dbg(dev, "%s\n", __func__);
|
|
|
|
|
|
|
|
/* redo the calibration in next power up */
|
|
|
|
cs35l33->amp_cal = false;
|
|
|
|
|
|
|
|
regcache_cache_only(cs35l33->regmap, true);
|
|
|
|
regcache_mark_dirty(cs35l33->regmap);
|
|
|
|
regulator_bulk_disable(cs35l33->num_core_supplies,
|
|
|
|
cs35l33->core_supplies);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static const struct dev_pm_ops cs35l33_pm_ops = {
|
|
|
|
SET_RUNTIME_PM_OPS(cs35l33_runtime_suspend,
|
|
|
|
cs35l33_runtime_resume,
|
|
|
|
NULL)
|
|
|
|
};
|
|
|
|
|
|
|
|
static int cs35l33_get_hg_data(const struct device_node *np,
|
|
|
|
struct cs35l33_pdata *pdata)
|
|
|
|
{
|
|
|
|
struct device_node *hg;
|
|
|
|
struct cs35l33_hg *hg_config = &pdata->hg_config;
|
|
|
|
u32 val32;
|
|
|
|
|
|
|
|
hg = of_get_child_by_name(np, "cirrus,hg-algo");
|
|
|
|
hg_config->enable_hg_algo = hg ? true : false;
|
|
|
|
|
|
|
|
if (hg_config->enable_hg_algo) {
|
|
|
|
if (of_property_read_u32(hg, "cirrus,mem-depth", &val32) >= 0)
|
|
|
|
hg_config->mem_depth = val32;
|
|
|
|
if (of_property_read_u32(hg, "cirrus,release-rate",
|
|
|
|
&val32) >= 0)
|
|
|
|
hg_config->release_rate = val32;
|
|
|
|
if (of_property_read_u32(hg, "cirrus,ldo-thld", &val32) >= 0)
|
|
|
|
hg_config->ldo_thld = val32;
|
|
|
|
if (of_property_read_u32(hg, "cirrus,ldo-path-disable",
|
|
|
|
&val32) >= 0)
|
|
|
|
hg_config->ldo_path_disable = val32;
|
|
|
|
if (of_property_read_u32(hg, "cirrus,ldo-entry-delay",
|
|
|
|
&val32) >= 0)
|
|
|
|
hg_config->ldo_entry_delay = val32;
|
|
|
|
|
|
|
|
hg_config->vp_hg_auto = of_property_read_bool(hg,
|
|
|
|
"cirrus,vp-hg-auto");
|
|
|
|
|
|
|
|
if (of_property_read_u32(hg, "cirrus,vp-hg", &val32) >= 0)
|
|
|
|
hg_config->vp_hg = val32;
|
|
|
|
if (of_property_read_u32(hg, "cirrus,vp-hg-rate", &val32) >= 0)
|
|
|
|
hg_config->vp_hg_rate = val32;
|
|
|
|
if (of_property_read_u32(hg, "cirrus,vp-hg-va", &val32) >= 0)
|
|
|
|
hg_config->vp_hg_va = val32;
|
|
|
|
}
|
|
|
|
|
|
|
|
of_node_put(hg);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static irqreturn_t cs35l33_irq_thread(int irq, void *data)
|
|
|
|
{
|
|
|
|
struct cs35l33_private *cs35l33 = data;
|
2018-01-28 20:55:16 -07:00
|
|
|
struct snd_soc_component *component = cs35l33->component;
|
2016-06-20 10:45:18 -06:00
|
|
|
unsigned int sticky_val1, sticky_val2, current_val, mask1, mask2;
|
|
|
|
|
|
|
|
regmap_read(cs35l33->regmap, CS35L33_INT_STATUS_2,
|
|
|
|
&sticky_val2);
|
|
|
|
regmap_read(cs35l33->regmap, CS35L33_INT_STATUS_1,
|
|
|
|
&sticky_val1);
|
|
|
|
regmap_read(cs35l33->regmap, CS35L33_INT_MASK_2, &mask2);
|
|
|
|
regmap_read(cs35l33->regmap, CS35L33_INT_MASK_1, &mask1);
|
|
|
|
|
|
|
|
/* Check to see if the unmasked bits are active,
|
|
|
|
* if not then exit.
|
|
|
|
*/
|
|
|
|
if (!(sticky_val1 & ~mask1) && !(sticky_val2 & ~mask2))
|
|
|
|
return IRQ_NONE;
|
|
|
|
|
|
|
|
regmap_read(cs35l33->regmap, CS35L33_INT_STATUS_1,
|
|
|
|
¤t_val);
|
|
|
|
|
|
|
|
/* handle the interrupts */
|
|
|
|
|
|
|
|
if (sticky_val1 & CS35L33_AMP_SHORT) {
|
2018-01-28 20:55:16 -07:00
|
|
|
dev_crit(component->dev, "Amp short error\n");
|
2016-06-20 10:45:18 -06:00
|
|
|
if (!(current_val & CS35L33_AMP_SHORT)) {
|
2018-01-28 20:55:16 -07:00
|
|
|
dev_dbg(component->dev,
|
2016-06-20 10:45:18 -06:00
|
|
|
"Amp short error release\n");
|
|
|
|
regmap_update_bits(cs35l33->regmap,
|
|
|
|
CS35L33_AMP_CTL,
|
|
|
|
CS35L33_AMP_SHORT_RLS, 0);
|
|
|
|
regmap_update_bits(cs35l33->regmap,
|
|
|
|
CS35L33_AMP_CTL,
|
|
|
|
CS35L33_AMP_SHORT_RLS,
|
|
|
|
CS35L33_AMP_SHORT_RLS);
|
|
|
|
regmap_update_bits(cs35l33->regmap,
|
|
|
|
CS35L33_AMP_CTL, CS35L33_AMP_SHORT_RLS,
|
|
|
|
0);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (sticky_val1 & CS35L33_CAL_ERR) {
|
2018-01-28 20:55:16 -07:00
|
|
|
dev_err(component->dev, "Cal error\n");
|
2016-06-20 10:45:18 -06:00
|
|
|
|
|
|
|
/* redo the calibration in next power up */
|
|
|
|
cs35l33->amp_cal = false;
|
|
|
|
|
|
|
|
if (!(current_val & CS35L33_CAL_ERR)) {
|
2018-01-28 20:55:16 -07:00
|
|
|
dev_dbg(component->dev, "Cal error release\n");
|
2016-06-20 10:45:18 -06:00
|
|
|
regmap_update_bits(cs35l33->regmap,
|
|
|
|
CS35L33_AMP_CTL, CS35L33_CAL_ERR_RLS,
|
|
|
|
0);
|
|
|
|
regmap_update_bits(cs35l33->regmap,
|
|
|
|
CS35L33_AMP_CTL, CS35L33_CAL_ERR_RLS,
|
|
|
|
CS35L33_CAL_ERR_RLS);
|
|
|
|
regmap_update_bits(cs35l33->regmap,
|
|
|
|
CS35L33_AMP_CTL, CS35L33_CAL_ERR_RLS,
|
|
|
|
0);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (sticky_val1 & CS35L33_OTE) {
|
2018-01-28 20:55:16 -07:00
|
|
|
dev_crit(component->dev, "Over temperature error\n");
|
2016-06-20 10:45:18 -06:00
|
|
|
if (!(current_val & CS35L33_OTE)) {
|
2018-01-28 20:55:16 -07:00
|
|
|
dev_dbg(component->dev,
|
2016-06-20 10:45:18 -06:00
|
|
|
"Over temperature error release\n");
|
|
|
|
regmap_update_bits(cs35l33->regmap,
|
|
|
|
CS35L33_AMP_CTL, CS35L33_OTE_RLS, 0);
|
|
|
|
regmap_update_bits(cs35l33->regmap,
|
|
|
|
CS35L33_AMP_CTL, CS35L33_OTE_RLS,
|
|
|
|
CS35L33_OTE_RLS);
|
|
|
|
regmap_update_bits(cs35l33->regmap,
|
|
|
|
CS35L33_AMP_CTL, CS35L33_OTE_RLS, 0);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (sticky_val1 & CS35L33_OTW) {
|
2018-01-28 20:55:16 -07:00
|
|
|
dev_err(component->dev, "Over temperature warning\n");
|
2016-06-20 10:45:18 -06:00
|
|
|
if (!(current_val & CS35L33_OTW)) {
|
2018-01-28 20:55:16 -07:00
|
|
|
dev_dbg(component->dev,
|
2016-06-20 10:45:18 -06:00
|
|
|
"Over temperature warning release\n");
|
|
|
|
regmap_update_bits(cs35l33->regmap,
|
|
|
|
CS35L33_AMP_CTL, CS35L33_OTW_RLS, 0);
|
|
|
|
regmap_update_bits(cs35l33->regmap,
|
|
|
|
CS35L33_AMP_CTL, CS35L33_OTW_RLS,
|
|
|
|
CS35L33_OTW_RLS);
|
|
|
|
regmap_update_bits(cs35l33->regmap,
|
|
|
|
CS35L33_AMP_CTL, CS35L33_OTW_RLS, 0);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (CS35L33_ALIVE_ERR & sticky_val1)
|
2018-01-28 20:55:16 -07:00
|
|
|
dev_err(component->dev, "ERROR: ADSPCLK Interrupt\n");
|
2016-06-20 10:45:18 -06:00
|
|
|
|
|
|
|
if (CS35L33_MCLK_ERR & sticky_val1)
|
2018-01-28 20:55:16 -07:00
|
|
|
dev_err(component->dev, "ERROR: MCLK Interrupt\n");
|
2016-06-20 10:45:18 -06:00
|
|
|
|
|
|
|
if (CS35L33_VMON_OVFL & sticky_val2)
|
2018-01-28 20:55:16 -07:00
|
|
|
dev_err(component->dev,
|
2016-06-20 10:45:18 -06:00
|
|
|
"ERROR: VMON Overflow Interrupt\n");
|
|
|
|
|
|
|
|
if (CS35L33_IMON_OVFL & sticky_val2)
|
2018-01-28 20:55:16 -07:00
|
|
|
dev_err(component->dev,
|
2016-06-20 10:45:18 -06:00
|
|
|
"ERROR: IMON Overflow Interrupt\n");
|
|
|
|
|
|
|
|
if (CS35L33_VPMON_OVFL & sticky_val2)
|
2018-01-28 20:55:16 -07:00
|
|
|
dev_err(component->dev,
|
2016-06-20 10:45:18 -06:00
|
|
|
"ERROR: VPMON Overflow Interrupt\n");
|
|
|
|
|
|
|
|
return IRQ_HANDLED;
|
|
|
|
}
|
|
|
|
|
|
|
|
static const char * const cs35l33_core_supplies[] = {
|
|
|
|
"VA",
|
|
|
|
"VP",
|
|
|
|
};
|
|
|
|
|
|
|
|
static int cs35l33_of_get_pdata(struct device *dev,
|
|
|
|
struct cs35l33_private *cs35l33)
|
|
|
|
{
|
|
|
|
struct device_node *np = dev->of_node;
|
|
|
|
struct cs35l33_pdata *pdata = &cs35l33->pdata;
|
|
|
|
u32 val32;
|
|
|
|
|
|
|
|
if (!np)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
if (of_property_read_u32(np, "cirrus,boost-ctl", &val32) >= 0) {
|
|
|
|
pdata->boost_ctl = val32;
|
|
|
|
pdata->amp_drv_sel = 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (of_property_read_u32(np, "cirrus,ramp-rate", &val32) >= 0) {
|
|
|
|
pdata->ramp_rate = val32;
|
|
|
|
cs35l33->enable_soft_ramp = true;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (of_property_read_u32(np, "cirrus,boost-ipk", &val32) >= 0)
|
|
|
|
pdata->boost_ipk = val32;
|
|
|
|
|
|
|
|
if (of_property_read_u32(np, "cirrus,imon-adc-scale", &val32) >= 0) {
|
|
|
|
if ((val32 == 0x0) || (val32 == 0x7) || (val32 == 0x6))
|
|
|
|
pdata->imon_adc_scale = val32;
|
|
|
|
else
|
|
|
|
/* use default value */
|
|
|
|
pdata->imon_adc_scale = 0x8;
|
|
|
|
} else {
|
|
|
|
/* use default value */
|
|
|
|
pdata->imon_adc_scale = 0x8;
|
|
|
|
}
|
|
|
|
|
|
|
|
cs35l33_get_hg_data(np, pdata);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int cs35l33_i2c_probe(struct i2c_client *i2c_client,
|
|
|
|
const struct i2c_device_id *id)
|
|
|
|
{
|
|
|
|
struct cs35l33_private *cs35l33;
|
|
|
|
struct cs35l33_pdata *pdata = dev_get_platdata(&i2c_client->dev);
|
|
|
|
int ret, devid, i;
|
|
|
|
unsigned int reg;
|
|
|
|
|
|
|
|
cs35l33 = devm_kzalloc(&i2c_client->dev, sizeof(struct cs35l33_private),
|
|
|
|
GFP_KERNEL);
|
|
|
|
if (!cs35l33)
|
|
|
|
return -ENOMEM;
|
|
|
|
|
|
|
|
i2c_set_clientdata(i2c_client, cs35l33);
|
|
|
|
cs35l33->regmap = devm_regmap_init_i2c(i2c_client, &cs35l33_regmap);
|
|
|
|
if (IS_ERR(cs35l33->regmap)) {
|
|
|
|
ret = PTR_ERR(cs35l33->regmap);
|
|
|
|
dev_err(&i2c_client->dev, "regmap_init() failed: %d\n", ret);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
regcache_cache_only(cs35l33->regmap, true);
|
|
|
|
|
|
|
|
for (i = 0; i < ARRAY_SIZE(cs35l33_core_supplies); i++)
|
|
|
|
cs35l33->core_supplies[i].supply
|
|
|
|
= cs35l33_core_supplies[i];
|
|
|
|
cs35l33->num_core_supplies = ARRAY_SIZE(cs35l33_core_supplies);
|
|
|
|
|
|
|
|
ret = devm_regulator_bulk_get(&i2c_client->dev,
|
|
|
|
cs35l33->num_core_supplies,
|
|
|
|
cs35l33->core_supplies);
|
|
|
|
if (ret != 0) {
|
|
|
|
dev_err(&i2c_client->dev,
|
|
|
|
"Failed to request core supplies: %d\n",
|
|
|
|
ret);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (pdata) {
|
|
|
|
cs35l33->pdata = *pdata;
|
|
|
|
} else {
|
|
|
|
cs35l33_of_get_pdata(&i2c_client->dev, cs35l33);
|
|
|
|
pdata = &cs35l33->pdata;
|
|
|
|
}
|
|
|
|
|
|
|
|
ret = devm_request_threaded_irq(&i2c_client->dev, i2c_client->irq, NULL,
|
|
|
|
cs35l33_irq_thread, IRQF_ONESHOT | IRQF_TRIGGER_LOW,
|
|
|
|
"cs35l33", cs35l33);
|
|
|
|
if (ret != 0)
|
|
|
|
dev_warn(&i2c_client->dev, "Failed to request IRQ: %d\n", ret);
|
|
|
|
|
|
|
|
/* We could issue !RST or skip it based on AMP topology */
|
|
|
|
cs35l33->reset_gpio = devm_gpiod_get_optional(&i2c_client->dev,
|
|
|
|
"reset-gpios", GPIOD_OUT_HIGH);
|
2016-06-29 18:13:34 -06:00
|
|
|
if (IS_ERR(cs35l33->reset_gpio)) {
|
2016-06-20 10:45:18 -06:00
|
|
|
dev_err(&i2c_client->dev, "%s ERROR: Can't get reset GPIO\n",
|
|
|
|
__func__);
|
|
|
|
return PTR_ERR(cs35l33->reset_gpio);
|
|
|
|
}
|
|
|
|
|
|
|
|
ret = regulator_bulk_enable(cs35l33->num_core_supplies,
|
|
|
|
cs35l33->core_supplies);
|
|
|
|
if (ret != 0) {
|
|
|
|
dev_err(&i2c_client->dev,
|
|
|
|
"Failed to enable core supplies: %d\n",
|
|
|
|
ret);
|
2016-06-28 02:40:18 -06:00
|
|
|
return ret;
|
2016-06-20 10:45:18 -06:00
|
|
|
}
|
|
|
|
|
2017-07-16 15:11:09 -06:00
|
|
|
gpiod_set_value_cansleep(cs35l33->reset_gpio, 1);
|
2016-06-20 10:45:18 -06:00
|
|
|
|
|
|
|
msleep(CS35L33_BOOT_DELAY);
|
|
|
|
regcache_cache_only(cs35l33->regmap, false);
|
|
|
|
|
|
|
|
/* initialize codec */
|
|
|
|
ret = regmap_read(cs35l33->regmap, CS35L33_DEVID_AB, ®);
|
|
|
|
devid = (reg & 0xFF) << 12;
|
|
|
|
ret = regmap_read(cs35l33->regmap, CS35L33_DEVID_CD, ®);
|
|
|
|
devid |= (reg & 0xFF) << 4;
|
|
|
|
ret = regmap_read(cs35l33->regmap, CS35L33_DEVID_E, ®);
|
|
|
|
devid |= (reg & 0xF0) >> 4;
|
|
|
|
|
|
|
|
if (devid != CS35L33_CHIP_ID) {
|
|
|
|
dev_err(&i2c_client->dev,
|
|
|
|
"CS35L33 Device ID (%X). Expected ID %X\n",
|
|
|
|
devid, CS35L33_CHIP_ID);
|
|
|
|
goto err_enable;
|
|
|
|
}
|
|
|
|
|
|
|
|
ret = regmap_read(cs35l33->regmap, CS35L33_REV_ID, ®);
|
|
|
|
if (ret < 0) {
|
|
|
|
dev_err(&i2c_client->dev, "Get Revision ID failed\n");
|
|
|
|
goto err_enable;
|
|
|
|
}
|
|
|
|
|
|
|
|
dev_info(&i2c_client->dev,
|
2016-06-29 18:14:30 -06:00
|
|
|
"Cirrus Logic CS35L33, Revision: %02X\n", reg & 0xFF);
|
2016-06-20 10:45:18 -06:00
|
|
|
|
|
|
|
ret = regmap_register_patch(cs35l33->regmap,
|
|
|
|
cs35l33_patch, ARRAY_SIZE(cs35l33_patch));
|
|
|
|
if (ret < 0) {
|
|
|
|
dev_err(&i2c_client->dev,
|
|
|
|
"Error in applying regmap patch: %d\n", ret);
|
|
|
|
goto err_enable;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* disable mclk and tdm */
|
|
|
|
regmap_update_bits(cs35l33->regmap, CS35L33_CLK_CTL,
|
|
|
|
CS35L33_MCLKDIS | CS35L33_SDOUT_3ST_TDM,
|
|
|
|
CS35L33_MCLKDIS | CS35L33_SDOUT_3ST_TDM);
|
|
|
|
|
|
|
|
pm_runtime_set_autosuspend_delay(&i2c_client->dev, 100);
|
|
|
|
pm_runtime_use_autosuspend(&i2c_client->dev);
|
|
|
|
pm_runtime_set_active(&i2c_client->dev);
|
|
|
|
pm_runtime_enable(&i2c_client->dev);
|
|
|
|
|
2018-01-28 20:55:16 -07:00
|
|
|
ret = devm_snd_soc_register_component(&i2c_client->dev,
|
|
|
|
&soc_component_dev_cs35l33, &cs35l33_dai, 1);
|
2016-06-20 10:45:18 -06:00
|
|
|
if (ret < 0) {
|
2018-01-28 20:55:16 -07:00
|
|
|
dev_err(&i2c_client->dev, "%s: Register component failed\n",
|
2016-06-20 10:45:18 -06:00
|
|
|
__func__);
|
2016-06-28 02:40:18 -06:00
|
|
|
goto err_enable;
|
2016-06-20 10:45:18 -06:00
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
err_enable:
|
|
|
|
regulator_bulk_disable(cs35l33->num_core_supplies,
|
|
|
|
cs35l33->core_supplies);
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int cs35l33_i2c_remove(struct i2c_client *client)
|
|
|
|
{
|
|
|
|
struct cs35l33_private *cs35l33 = i2c_get_clientdata(client);
|
|
|
|
|
2017-07-16 15:11:09 -06:00
|
|
|
gpiod_set_value_cansleep(cs35l33->reset_gpio, 0);
|
2016-06-20 10:45:18 -06:00
|
|
|
|
|
|
|
pm_runtime_disable(&client->dev);
|
|
|
|
regulator_bulk_disable(cs35l33->num_core_supplies,
|
|
|
|
cs35l33->core_supplies);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static const struct of_device_id cs35l33_of_match[] = {
|
|
|
|
{ .compatible = "cirrus,cs35l33", },
|
|
|
|
{},
|
|
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(of, cs35l33_of_match);
|
|
|
|
|
|
|
|
static const struct i2c_device_id cs35l33_id[] = {
|
|
|
|
{"cs35l33", 0},
|
|
|
|
{}
|
|
|
|
};
|
|
|
|
|
|
|
|
MODULE_DEVICE_TABLE(i2c, cs35l33_id);
|
|
|
|
|
|
|
|
static struct i2c_driver cs35l33_i2c_driver = {
|
|
|
|
.driver = {
|
|
|
|
.name = "cs35l33",
|
|
|
|
.pm = &cs35l33_pm_ops,
|
|
|
|
.of_match_table = cs35l33_of_match,
|
|
|
|
|
|
|
|
},
|
|
|
|
.id_table = cs35l33_id,
|
|
|
|
.probe = cs35l33_i2c_probe,
|
|
|
|
.remove = cs35l33_i2c_remove,
|
|
|
|
|
|
|
|
};
|
|
|
|
module_i2c_driver(cs35l33_i2c_driver);
|
|
|
|
|
|
|
|
MODULE_DESCRIPTION("ASoC CS35L33 driver");
|
|
|
|
MODULE_AUTHOR("Paul Handrigan, Cirrus Logic Inc, <paul.handrigan@cirrus.com>");
|
|
|
|
MODULE_LICENSE("GPL");
|