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regulator: tps65910: Sleep off rails when ext sleep configured

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Keep the rails OFF in sleep mode only when the rails are
controlled by external sleep control.
The devices tps65910 and tps65911, both has the sleep input.
The tps65911's sleep input is not same as tps65910's EN3 and hence
taking care of SLEEP input as separate external sleep control input.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Laxman Dewangan 2012-03-07 18:21:49 +05:30 committed by Mark Brown
parent 844775ef98
commit f30b0716fe
2 changed files with 15 additions and 7 deletions
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17
drivers/regulator/tps65910-regulator.c
View File

@ -28,7 +28,8 @@
#define TPS65910_SUPPLY_STATE_ENABLED 0x1
#define EXT_SLEEP_CONTROL (TPS65910_SLEEP_CONTROL_EXT_INPUT_EN1 | \
TPS65910_SLEEP_CONTROL_EXT_INPUT_EN2 | \
TPS65910_SLEEP_CONTROL_EXT_INPUT_EN3)
TPS65910_SLEEP_CONTROL_EXT_INPUT_EN3 | \
TPS65911_SLEEP_CONTROL_EXT_INPUT_SLEEP)
/* supported VIO voltages in milivolts */
static const u16 VIO_VSEL_table[] = {
@ -922,6 +923,8 @@ static int tps65910_set_ext_sleep_config(struct tps65910_reg *pmic,
TPS65910_SLEEP_CONTROL_EXT_INPUT_EN2) != 0);
en_count += ((ext_sleep_config &
TPS65910_SLEEP_CONTROL_EXT_INPUT_EN3) != 0);
en_count += ((ext_sleep_config &
TPS65911_SLEEP_CONTROL_EXT_INPUT_SLEEP) != 0);
if (en_count > 1) {
dev_err(mfd->dev,
"External sleep control flag is not proper\n");
@ -1018,12 +1021,18 @@ static int tps65910_set_ext_sleep_config(struct tps65910_reg *pmic,
ret = tps65910_clear_bits(mfd,
TPS65910_SLEEP_KEEP_LDO_ON + regoffs, bit_pos);
if (!ret)
ret = tps65910_set_bits(mfd,
TPS65910_SLEEP_SET_LDO_OFF + regoffs, bit_pos);
if (!ret) {
if (ext_sleep_config & TPS65911_SLEEP_CONTROL_EXT_INPUT_SLEEP)
ret = tps65910_set_bits(mfd,
TPS65910_SLEEP_SET_LDO_OFF + regoffs, bit_pos);
else
ret = tps65910_clear_bits(mfd,
TPS65910_SLEEP_SET_LDO_OFF + regoffs, bit_pos);
}
if (ret < 0)
dev_err(mfd->dev,
"Error in configuring SLEEP register\n");
return ret;
}

5
include/linux/mfd/tps65910.h
View File

@ -768,12 +768,11 @@
/* Max number of TPS65910/11 regulators */
#define TPS65910_NUM_REGS 13
/* External sleep controls through EN1/EN2/EN3 inputs*/
/* External sleep controls through EN1/EN2/EN3/SLEEP inputs */
#define TPS65910_SLEEP_CONTROL_EXT_INPUT_EN1 0x1
#define TPS65910_SLEEP_CONTROL_EXT_INPUT_EN2 0x2
#define TPS65910_SLEEP_CONTROL_EXT_INPUT_EN3 0x4
/* TPS65911 names the EN3 signal as SLEEP */
#define TPS65911_SLEEP_CONTROL_EXT_INPUT_SLEEP 0x4
#define TPS65911_SLEEP_CONTROL_EXT_INPUT_SLEEP 0x8
/**
* struct tps65910_board