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regulator: ab8500-ext: New driver to control external regulators

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The ABx500 is capable of controlling three external regulator supplies.
Most commonly on and off are supported, but if an external regulator
chipset or power supply supports high-power and low-power mode settings,
we can control those too.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Lee Jones 2013-03-28 16:11:01 +00:00 • committed by Mark Brown
commit d1a820011b
4 changed files with 434 additions and 2 deletions
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28
include/linux/regulator/ab8500.h
View file

@ -10,6 +10,8 @@
#ifndef __LINUX_MFD_AB8500_REGULATOR_H
#define __LINUX_MFD_AB8500_REGULATOR_H
#include <linux/platform_device.h>
/* AB8500 regulators */
enum ab8500_regulator_id {
AB8500_LDO_AUX1,
@ -140,11 +142,37 @@ enum ab9540_regulator_reg {
AB9540_NUM_REGULATOR_REGISTERS,
};
/* AB8500 external regulators */
enum ab8500_ext_regulator_id {
AB8500_EXT_SUPPLY1,
AB8500_EXT_SUPPLY2,
AB8500_EXT_SUPPLY3,
AB8500_NUM_EXT_REGULATORS,
};
/* AB8500 regulator platform data */
struct ab8500_regulator_platform_data {
int num_reg_init;
struct ab8500_regulator_reg_init *reg_init;
int num_regulator;
struct regulator_init_data *regulator;
int num_ext_regulator;
struct regulator_init_data *ext_regulator;
};
/* AB8500 external regulator functions (internal) */
#ifdef CONFIG_REGULATOR_AB8500_EXT
int ab8500_ext_regulator_init(struct platform_device *pdev);
int ab8500_ext_regulator_exit(struct platform_device *pdev);
#else
inline int ab8500_ext_regulator_init(struct platform_device *pdev)
{
return 0;
}
inline int ab8500_ext_regulator_exit(struct platform_device *pdev)
{
return 0;
}
#endif
#endif