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linux-stable/drivers/mfd/wm8994.h

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mfd: Add wm8994 register access and default information Describe the register map to the regmap core so that we can use its diagnostic features and cache support. This is split out from the patch using it due to the size so that the actual code change is a bit clearer. As the various devices are supersets of each other the access maps are built up by layering the functions on top of each other, though the interface for specifying the register defaults isn't currently amenable to this. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Samuel Ortiz <sameo@linux.intel.com>
2011-08-19 09:37:58 +00:00
/*
* wm8994.h -- WM8994 MFD internals
*
* Copyright 2011 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_H__
#define __MFD_WM8994_H__
#include <linux/regmap.h>
extern struct regmap_config wm1811_regmap_config;
extern struct regmap_config wm8994_regmap_config;
extern struct regmap_config wm8958_regmap_config;
mfd: Initialise WM8994 register cache after reading chip ID registers The different devices handled by the WM8994 can be distinguished using their ID registers so we don't need to rely on the user having registered the device correctly. Instead do the initial regmap setup with a minimal configuration only supporting physical I/O and then configure the cache once we have identified the device. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Samuel Ortiz <sameo@linux.intel.com>
2011-12-03 17:10:32 +00:00
extern struct regmap_config wm8994_base_regmap_config;
mfd: Add wm8994 register access and default information Describe the register map to the regmap core so that we can use its diagnostic features and cache support. This is split out from the patch using it due to the size so that the actual code change is a bit clearer. As the various devices are supersets of each other the access maps are built up by layering the functions on top of each other, though the interface for specifying the register defaults isn't currently amenable to this. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Samuel Ortiz <sameo@linux.intel.com>
2011-08-19 09:37:58 +00:00
#endif
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