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When the hardware is configured with one or both of the IN4 inputs used for DC measurement (with no DC blocking capacitor connected) then we can improve power consumption slightly in idle modes by applying a register write sequence. Provide platform data to enable this, implemented using a regmap patch. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
61 lines
1.8 KiB
C
61 lines
1.8 KiB
C
/*
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* wm8962.h -- WM8962 Soc Audio driver platform data
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef _WM8962_PDATA_H
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#define _WM8962_PDATA_H
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#define WM8962_MAX_GPIO 6
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/* Use to set GPIO default values to zero */
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#define WM8962_GPIO_SET 0x10000
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#define WM8962_GPIO_FN_CLKOUT 0
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#define WM8962_GPIO_FN_LOGIC 1
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#define WM8962_GPIO_FN_SDOUT 2
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#define WM8962_GPIO_FN_IRQ 3
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#define WM8962_GPIO_FN_THERMAL 4
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#define WM8962_GPIO_FN_PLL2_LOCK 6
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#define WM8962_GPIO_FN_PLL3_LOCK 7
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#define WM8962_GPIO_FN_FLL_LOCK 9
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#define WM8962_GPIO_FN_DRC_ACT 10
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#define WM8962_GPIO_FN_WSEQ_DONE 11
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#define WM8962_GPIO_FN_ALC_NG_ACT 12
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#define WM8962_GPIO_FN_ALC_PEAK_LIMIT 13
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#define WM8962_GPIO_FN_ALC_SATURATION 14
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#define WM8962_GPIO_FN_ALC_LEVEL_THR 15
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#define WM8962_GPIO_FN_ALC_LEVEL_LOCK 16
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#define WM8962_GPIO_FN_FIFO_ERR 17
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#define WM8962_GPIO_FN_OPCLK 18
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#define WM8962_GPIO_FN_DMICCLK 19
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#define WM8962_GPIO_FN_DMICDAT 20
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#define WM8962_GPIO_FN_MICD 21
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#define WM8962_GPIO_FN_MICSCD 22
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struct wm8962_pdata {
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int gpio_base;
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u32 gpio_init[WM8962_MAX_GPIO];
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/* Setup for microphone detection, raw value to be written to
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* R48(0x30) - only microphone related bits will be updated.
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* Detection may be enabled here for use with signals brought
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* out on the GPIOs. */
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u32 mic_cfg;
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bool irq_active_low;
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bool spk_mono; /* Speaker outputs tied together as mono */
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/**
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* This flag should be set if one or both IN4 inputs is wired
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* in a DC measurement configuration.
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*/
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bool in4_dc_measure;
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};
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#endif
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