linux-stable/sound/soc/codecs/cs42l51.h
Thomas Petazzoni e51df4f81b
ASoC: cs42l51: fix driver to properly autoload with automatic module loading
In commit 2cb1e0259f ("ASoC: cs42l51: re-hook of_match_table
pointer"), 9 years ago, some random guy fixed the cs42l51 after it was
split into a core part and an I2C part to properly match based on a
Device Tree compatible string.

However, the fix in this commit is wrong: the MODULE_DEVICE_TABLE(of,
....) is in the core part of the driver, not the I2C part. Therefore,
automatic module loading based on module.alias, based on matching with
the DT compatible string, loads the core part of the driver, but not
the I2C part. And threfore, the i2c_driver is not registered, and the
codec is not known to the system, nor matched with a DT node with the
corresponding compatible string.

In order to fix that, we move the MODULE_DEVICE_TABLE(of, ...) into
the I2C part of the driver. The cs42l51_of_match[] array is also moved
as well, as it is not possible to have this definition in one file,
and the MODULE_DEVICE_TABLE(of, ...) invocation in another file, due
to how MODULE_DEVICE_TABLE works.

Thanks to this commit, the I2C part of the driver now properly
autoloads, and thanks to its dependency on the core part, the core
part gets autoloaded as well, resulting in a functional sound card
without having to manually load kernel modules.

Fixes: 2cb1e0259f ("ASoC: cs42l51: re-hook of_match_table pointer")
Cc: stable@vger.kernel.org
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Link: https://lore.kernel.org/r/20230713112112.778576-1-thomas.petazzoni@bootlin.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2023-07-17 06:15:09 +01:00

161 lines
5.1 KiB
C

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* cs42l51.h
*
* ASoC Driver for Cirrus Logic CS42L51 codecs
*
* Copyright (c) 2010 Arnaud Patard <apatard@mandriva.com>
*/
#ifndef _CS42L51_H
#define _CS42L51_H
struct device;
extern const struct regmap_config cs42l51_regmap;
int cs42l51_probe(struct device *dev, struct regmap *regmap);
void cs42l51_remove(struct device *dev);
int __maybe_unused cs42l51_suspend(struct device *dev);
int __maybe_unused cs42l51_resume(struct device *dev);
#define CS42L51_CHIP_ID 0x1B
#define CS42L51_CHIP_REV_A 0x00
#define CS42L51_CHIP_REV_B 0x01
#define CS42L51_CHIP_REV_MASK 0x07
#define CS42L51_CHIP_REV_ID 0x01
#define CS42L51_MK_CHIP_REV(a, b) ((a)<<3|(b))
#define CS42L51_POWER_CTL1 0x02
#define CS42L51_POWER_CTL1_PDN_DACB (1<<6)
#define CS42L51_POWER_CTL1_PDN_DACA (1<<5)
#define CS42L51_POWER_CTL1_PDN_PGAB (1<<4)
#define CS42L51_POWER_CTL1_PDN_PGAA (1<<3)
#define CS42L51_POWER_CTL1_PDN_ADCB (1<<2)
#define CS42L51_POWER_CTL1_PDN_ADCA (1<<1)
#define CS42L51_POWER_CTL1_PDN (1<<0)
#define CS42L51_MIC_POWER_CTL 0x03
#define CS42L51_MIC_POWER_CTL_AUTO (1<<7)
#define CS42L51_MIC_POWER_CTL_SPEED(x) (((x)&3)<<5)
#define CS42L51_QSM_MODE 3
#define CS42L51_HSM_MODE 2
#define CS42L51_SSM_MODE 1
#define CS42L51_DSM_MODE 0
#define CS42L51_MIC_POWER_CTL_3ST_SP (1<<4)
#define CS42L51_MIC_POWER_CTL_PDN_MICB (1<<3)
#define CS42L51_MIC_POWER_CTL_PDN_MICA (1<<2)
#define CS42L51_MIC_POWER_CTL_PDN_BIAS (1<<1)
#define CS42L51_MIC_POWER_CTL_MCLK_DIV2 (1<<0)
#define CS42L51_INTF_CTL 0x04
#define CS42L51_INTF_CTL_LOOPBACK (1<<7)
#define CS42L51_INTF_CTL_MASTER (1<<6)
#define CS42L51_INTF_CTL_DAC_FORMAT(x) (((x)&7)<<3)
#define CS42L51_DAC_DIF_LJ24 0x00
#define CS42L51_DAC_DIF_I2S 0x01
#define CS42L51_DAC_DIF_RJ24 0x02
#define CS42L51_DAC_DIF_RJ20 0x03
#define CS42L51_DAC_DIF_RJ18 0x04
#define CS42L51_DAC_DIF_RJ16 0x05
#define CS42L51_INTF_CTL_ADC_I2S (1<<2)
#define CS42L51_INTF_CTL_DIGMIX (1<<1)
#define CS42L51_INTF_CTL_MICMIX (1<<0)
#define CS42L51_MIC_CTL 0x05
#define CS42L51_MIC_CTL_ADC_SNGVOL (1<<7)
#define CS42L51_MIC_CTL_ADCD_DBOOST (1<<6)
#define CS42L51_MIC_CTL_ADCA_DBOOST (1<<5)
#define CS42L51_MIC_CTL_MICBIAS_SEL (1<<4)
#define CS42L51_MIC_CTL_MICBIAS_LVL(x) (((x)&3)<<2)
#define CS42L51_MIC_CTL_MICB_BOOST (1<<1)
#define CS42L51_MIC_CTL_MICA_BOOST (1<<0)
#define CS42L51_ADC_CTL 0x06
#define CS42L51_ADC_CTL_ADCB_HPFEN (1<<7)
#define CS42L51_ADC_CTL_ADCB_HPFRZ (1<<6)
#define CS42L51_ADC_CTL_ADCA_HPFEN (1<<5)
#define CS42L51_ADC_CTL_ADCA_HPFRZ (1<<4)
#define CS42L51_ADC_CTL_SOFTB (1<<3)
#define CS42L51_ADC_CTL_ZCROSSB (1<<2)
#define CS42L51_ADC_CTL_SOFTA (1<<1)
#define CS42L51_ADC_CTL_ZCROSSA (1<<0)
#define CS42L51_ADC_INPUT 0x07
#define CS42L51_ADC_INPUT_AINB_MUX(x) (((x)&3)<<6)
#define CS42L51_ADC_INPUT_AINA_MUX(x) (((x)&3)<<4)
#define CS42L51_ADC_INPUT_INV_ADCB (1<<3)
#define CS42L51_ADC_INPUT_INV_ADCA (1<<2)
#define CS42L51_ADC_INPUT_ADCB_MUTE (1<<1)
#define CS42L51_ADC_INPUT_ADCA_MUTE (1<<0)
#define CS42L51_DAC_OUT_CTL 0x08
#define CS42L51_DAC_OUT_CTL_HP_GAIN(x) (((x)&7)<<5)
#define CS42L51_DAC_OUT_CTL_DAC_SNGVOL (1<<4)
#define CS42L51_DAC_OUT_CTL_INV_PCMB (1<<3)
#define CS42L51_DAC_OUT_CTL_INV_PCMA (1<<2)
#define CS42L51_DAC_OUT_CTL_DACB_MUTE (1<<1)
#define CS42L51_DAC_OUT_CTL_DACA_MUTE (1<<0)
#define CS42L51_DAC_CTL 0x09
#define CS42L51_DAC_CTL_DATA_SEL(x) (((x)&3)<<6)
#define CS42L51_DAC_CTL_FREEZE (1<<5)
#define CS42L51_DAC_CTL_DEEMPH (1<<3)
#define CS42L51_DAC_CTL_AMUTE (1<<2)
#define CS42L51_DAC_CTL_DACSZ(x) (((x)&3)<<0)
#define CS42L51_ALC_PGA_CTL 0x0A
#define CS42L51_ALC_PGB_CTL 0x0B
#define CS42L51_ALC_PGX_ALCX_SRDIS (1<<7)
#define CS42L51_ALC_PGX_ALCX_ZCDIS (1<<6)
#define CS42L51_ALC_PGX_PGX_VOL(x) (((x)&0x1f)<<0)
#define CS42L51_ADCA_ATT 0x0C
#define CS42L51_ADCB_ATT 0x0D
#define CS42L51_ADCA_VOL 0x0E
#define CS42L51_ADCB_VOL 0x0F
#define CS42L51_PCMA_VOL 0x10
#define CS42L51_PCMB_VOL 0x11
#define CS42L51_MIX_MUTE_ADCMIX (1<<7)
#define CS42L51_MIX_VOLUME(x) (((x)&0x7f)<<0)
#define CS42L51_BEEP_FREQ 0x12
#define CS42L51_BEEP_VOL 0x13
#define CS42L51_BEEP_CONF 0x14
#define CS42L51_TONE_CTL 0x15
#define CS42L51_TONE_CTL_TREB(x) (((x)&0xf)<<4)
#define CS42L51_TONE_CTL_BASS(x) (((x)&0xf)<<0)
#define CS42L51_AOUTA_VOL 0x16
#define CS42L51_AOUTB_VOL 0x17
#define CS42L51_PCM_MIXER 0x18
#define CS42L51_LIMIT_THRES_DIS 0x19
#define CS42L51_LIMIT_REL 0x1A
#define CS42L51_LIMIT_ATT 0x1B
#define CS42L51_ALC_EN 0x1C
#define CS42L51_ALC_REL 0x1D
#define CS42L51_ALC_THRES 0x1E
#define CS42L51_NOISE_CONF 0x1F
#define CS42L51_STATUS 0x20
#define CS42L51_STATUS_SP_CLKERR (1<<6)
#define CS42L51_STATUS_SPEA_OVFL (1<<5)
#define CS42L51_STATUS_SPEB_OVFL (1<<4)
#define CS42L51_STATUS_PCMA_OVFL (1<<3)
#define CS42L51_STATUS_PCMB_OVFL (1<<2)
#define CS42L51_STATUS_ADCA_OVFL (1<<1)
#define CS42L51_STATUS_ADCB_OVFL (1<<0)
#define CS42L51_CHARGE_FREQ 0x21
#define CS42L51_FIRSTREG 0x01
/*
* Hack: with register 0x21, it makes 33 registers. Looks like someone in the
* i2c layer doesn't like i2c smbus block read of 33 regs. Workaround by using
* 32 regs
*/
#define CS42L51_LASTREG 0x20
#define CS42L51_NUMREGS (CS42L51_LASTREG - CS42L51_FIRSTREG + 1)
#endif