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linux-next/include/linux/mfd/wm8994/pdata.h
Mark Brown 02e7947699 ASoC: wm_hubs: Allow configuration of MICBIAS power up delay via pdata
Sometimes the analogue circuitry connected to the microphone needs some
time to settle after power up. Allow systems to configure this delay in
the platform data, the driver will then insert the required delay during
power up of paths that involve the microphone.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-08-22 19:00:37 +01:00

216 lines
5.9 KiB
C

/*
* include/linux/mfd/wm8994/pdata.h -- Platform data for WM8994
*
* Copyright 2009 Wolfson Microelectronics PLC.
*
* Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
*/
#ifndef __MFD_WM8994_PDATA_H__
#define __MFD_WM8994_PDATA_H__
#define WM8994_NUM_LDO 2
#define WM8994_NUM_GPIO 11
struct wm8994_ldo_pdata {
/** GPIOs to enable regulator, 0 or less if not available */
int enable;
const struct regulator_init_data *init_data;
};
#define WM8994_CONFIGURE_GPIO 0x10000
#define WM8994_DRC_REGS 5
#define WM8994_EQ_REGS 20
#define WM8958_MBC_CUTOFF_REGS 20
#define WM8958_MBC_COEFF_REGS 48
#define WM8958_MBC_COMBINED_REGS 56
#define WM8958_VSS_HPF_REGS 2
#define WM8958_VSS_REGS 148
#define WM8958_ENH_EQ_REGS 32
/**
* DRC configurations are specified with a label and a set of register
* values to write (the enable bits will be ignored). At runtime an
* enumerated control will be presented for each DRC block allowing
* the user to choose the configration to use.
*
* Configurations may be generated by hand or by using the DRC control
* panel provided by the WISCE - see http://www.wolfsonmicro.com/wisce/
* for details.
*/
struct wm8994_drc_cfg {
const char *name;
u16 regs[WM8994_DRC_REGS];
};
/**
* ReTune Mobile configurations are specified with a label, sample
* rate and set of values to write (the enable bits will be ignored).
*
* Configurations are expected to be generated using the ReTune Mobile
* control panel in WISCE - see http://www.wolfsonmicro.com/wisce/
*/
struct wm8994_retune_mobile_cfg {
const char *name;
unsigned int rate;
u16 regs[WM8994_EQ_REGS];
};
/**
* Multiband compressor configurations are specified with a label and
* two sets of values to write. Configurations are expected to be
* generated using the multiband compressor configuration panel in
* WISCE - see http://www.wolfsonmicro.com/wisce/
*/
struct wm8958_mbc_cfg {
const char *name;
u16 cutoff_regs[WM8958_MBC_CUTOFF_REGS];
u16 coeff_regs[WM8958_MBC_COEFF_REGS];
/* Coefficient layout when using MBC+VSS firmware */
u16 combined_regs[WM8958_MBC_COMBINED_REGS];
};
/**
* VSS HPF configurations are specified with a label and two values to
* write. Configurations are expected to be generated using the
* multiband compressor configuration panel in WISCE - see
* http://www.wolfsonmicro.com/wisce/
*/
struct wm8958_vss_hpf_cfg {
const char *name;
u16 regs[WM8958_VSS_HPF_REGS];
};
/**
* VSS configurations are specified with a label and array of values
* to write. Configurations are expected to be generated using the
* multiband compressor configuration panel in WISCE - see
* http://www.wolfsonmicro.com/wisce/
*/
struct wm8958_vss_cfg {
const char *name;
u16 regs[WM8958_VSS_REGS];
};
/**
* Enhanced EQ configurations are specified with a label and array of
* values to write. Configurations are expected to be generated using
* the multiband compressor configuration panel in WISCE - see
* http://www.wolfsonmicro.com/wisce/
*/
struct wm8958_enh_eq_cfg {
const char *name;
u16 regs[WM8958_ENH_EQ_REGS];
};
/**
* Microphone detection rates, used to tune response rates and power
* consumption for WM8958/WM1811 microphone detection.
*
* @sysclk: System clock rate to use this configuration for.
* @idle: True if this configuration should use when no accessory is detected,
* false otherwise.
* @start: Value for MICD_BIAS_START_TIME register field (not shifted).
* @rate: Value for MICD_RATE register field (not shifted).
*/
struct wm8958_micd_rate {
int sysclk;
bool idle;
int start;
int rate;
};
struct wm8994_pdata {
int gpio_base;
/**
* Default values for GPIOs if non-zero, WM8994_CONFIGURE_GPIO
* can be used for all zero values.
*/
int gpio_defaults[WM8994_NUM_GPIO];
struct wm8994_ldo_pdata ldo[WM8994_NUM_LDO];
int irq_base; /** Base IRQ number for WM8994, required for IRQs */
unsigned long irq_flags; /** user irq flags */
int num_drc_cfgs;
struct wm8994_drc_cfg *drc_cfgs;
int num_retune_mobile_cfgs;
struct wm8994_retune_mobile_cfg *retune_mobile_cfgs;
int num_mbc_cfgs;
struct wm8958_mbc_cfg *mbc_cfgs;
int num_vss_cfgs;
struct wm8958_vss_cfg *vss_cfgs;
int num_vss_hpf_cfgs;
struct wm8958_vss_hpf_cfg *vss_hpf_cfgs;
int num_enh_eq_cfgs;
struct wm8958_enh_eq_cfg *enh_eq_cfgs;
int num_micd_rates;
struct wm8958_micd_rate *micd_rates;
/* Power up delays to add after microphone bias power up (ms) */
int micb1_delay;
int micb2_delay;
/* LINEOUT can be differential or single ended */
unsigned int lineout1_diff:1;
unsigned int lineout2_diff:1;
/* Common mode feedback */
unsigned int lineout1fb:1;
unsigned int lineout2fb:1;
/* IRQ for microphone detection if brought out directly as a
* signal.
*/
int micdet_irq;
/* WM8994 microphone biases: 0=0.9*AVDD1 1=0.65*AVVD1 */
unsigned int micbias1_lvl:1;
unsigned int micbias2_lvl:1;
/* WM8994 jack detect threashold levels, see datasheet for values */
unsigned int jd_scthr:2;
unsigned int jd_thr:2;
/* Configure WM1811 jack detection for use with external capacitor */
unsigned int jd_ext_cap:1;
/* WM8958 microphone bias configuration */
int micbias[2];
/* WM8958 microphone detection ranges */
u16 micd_lvl_sel;
/* Disable the internal pull downs on the LDOs if they are
* always driven (eg, connected to an always on supply or
* GPIO that always drives an output. If they float power
* consumption will rise.
*/
bool ldo_ena_always_driven;
/*
* SPKMODE must be pulled internally by the device on this
* system.
*/
bool spkmode_pu;
};
#endif