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ENGR00120510 atlas switch mode control

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To reduce power consumed on atlas itself, set atlas swith to auto mode

Signed-off-by: Shen Yong <b00984@freescale.com>
This commit is contained in:
b00984
2010-01-27 15:33:15 +08:00
committed by Matt Sealey
parent fd20bbd7c6
commit d9d82e09c9
1 changed files with 23 additions and 1 deletions
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24
arch/arm/mach-mx51/mx51_babbage_pmic_mc13892.c
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@@ -2,7 +2,7 @@
* mx51-3stack-pmic-mc13892.c -- i.MX51 3STACK Driver for Atlas MC13892 PMIC
*/
/*
* Copyright 2009 Freescale Semiconductor, Inc. All Rights Reserved.
* Copyright 2009-2010 Freescale Semiconductor, Inc. All Rights Reserved.
*/
/*
@@ -77,6 +77,15 @@
#define REG_MODE_1_ALL_MASK (CAM_STBY_MASK | VIDEO_STBY_MASK |\
AUDIO_STBY_MASK | SD_STBY_MASK)
/* switch mode setting */
#define SW1MODE_LSB 0
#define SW2MODE_LSB 10
#define SW3MODE_LSB 0
#define SW4MODE_LSB 8
#define SWMODE_MASK 0xF
#define SWMODE_AUTO 0x8
/* CPU */
static struct regulator_consumer_supply sw1_consumers[] = {
{
@@ -331,6 +340,19 @@ static int mc13892_regulator_init(struct mc13892 *mc13892)
value |= REG_MODE_1_ALL_MASK;
pmic_write_reg(REG_MODE_1, value, 0xffffff);
/* enable switch audo mode */
pmic_read_reg(REG_SW_4, &value, 0xffffff);
register_mask = (SWMODE_MASK << SW1MODE_LSB) | (SWMODE_MASK << SW2MODE_LSB);
value &= ~register_mask;
value |= (SWMODE_AUTO << SW1MODE_LSB) | (SWMODE_AUTO << SW2MODE_LSB);
pmic_write_reg(REG_SW_4, value, 0xffffff);
pmic_read_reg(REG_SW_5, &value, 0xffffff);
register_mask = (SWMODE_MASK << SW3MODE_LSB) | (SWMODE_MASK << SW4MODE_LSB);
value &= ~register_mask;
value |= (SWMODE_AUTO << SW3MODE_LSB) | (SWMODE_AUTO << SW4MODE_LSB);
pmic_write_reg(REG_SW_5, value, 0xffffff);
/* Enable coin cell charger */
value = BITFVAL(CIONCHEN, 1) | BITFVAL(VCOIN, VCOIN_3_0V);
register_mask = BITFMASK(CIONCHEN) | BITFMASK(VCOIN);