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ARM: ux500: Turn off external regulator #1 when early HREFs suspend 

When older variants of the HREF (earlier than v22) development
platform enter suspend mode, power down EXT_SUPPLY1.

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 16:11:04 +00:00 committed by Mark Brown
parent a1d4948066
commit 422d765d2c
2 changed files with 19 additions and 0 deletions
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17
arch/arm/mach-ux500/board-mop500-regulators.c
View File

@ -11,6 +11,7 @@
#include <linux/kernel.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/ab8500.h>
#include <mach/id.h> /* to identify older boards for fixes */
#include "board-mop500-regulators.h"
static struct regulator_consumer_supply gpio_en_3v3_consumers[] = {
@ -494,3 +495,19 @@ static void ab8500_modify_reg_init(int id, u8 mask, u8 value)
BUG_ON(1);
}
void mop500_regulator_init(void)
{
struct regulator_init_data *regulator;
/*
* Handle VextSupply1 on older boards than HREFP_V22_V1x
* (turn off in suspend)
*/
if (cpu_is_u8500v20() || cpu_is_u8500v21()) {
/* disable VextSupply1 in suspend */
regulator = &ab8500_ext_regulators[AB8500_EXT_SUPPLY1];
regulator->constraints.state_mem.disabled = 1;
regulator->constraints.state_standby.disabled = 1;
}
}

2
arch/arm/mach-ux500/board-mop500-regulators.h
View File

@ -18,4 +18,6 @@ extern struct ab8500_regulator_platform_data ab8500_regulator_plat_data;
extern struct regulator_init_data tps61052_regulator;
extern struct regulator_init_data gpio_en_3v3_regulator;
void mop500_regulator_init(void);
#endif