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power: pmic: rk8xx: enable under-voltage protection to rk817/rk809 

The under-voltage protection will shutdown the LDO3 and reset the PMIC.

Change-Id: Ic84c7ad1a2eed8c1f983e761988ffb903fc878af
Signed-off-by: Shengfei Xu <xsf@rock-chips.com>
This commit is contained in:
Shengfei Xu 2019-02-13 09:49:38 +08:00 committed by Jianhong Chen
parent 204f7c3926
commit ba76dc003e
2 changed files with 7 additions and 4 deletions
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10
drivers/power/pmic/rk8xx.c
View File

@ -13,17 +13,21 @@
DECLARE_GLOBAL_DATA_PTR;
static struct reg_data rk817_init_reg[] = {
/* enable the under-voltage protection,
* the under-voltage protection will shutdown the LDO3 and reset the PMIC
*/
{ RK817_BUCK4_CMIN, 0x60, 0x60},
/*
* Only when system suspend while U-Boot charge needs this config support
*/
#ifdef CONFIG_DM_CHARGE_DISPLAY
static struct reg_data rk817_init_reg[] = {
/* Set pmic_sleep as sleep function */
{ RK817_PMIC_SYS_CFG3, 0x08, 0x18 },
/* Set pmic_int active low */
{ RK817_GPIO_INT_CFG, 0x00, 0x02 },
};
#endif
};
static const struct pmic_child_info pmic_children_info[] = {
{ .prefix = "DCDC", .driver = "rk8xx_buck"},
@ -213,10 +217,8 @@ static int rk8xx_probe(struct udevice *dev)
case RK817_ID:
on_source = RK817_ON_SOURCE;
off_source = RK817_OFF_SOURCE;
#ifdef CONFIG_DM_CHARGE_DISPLAY
init_data = rk817_init_reg;
init_data_num = ARRAY_SIZE(rk817_init_reg);
#endif
power_en0 = pmic_reg_read(dev, RK817_POWER_EN0);
power_en1 = pmic_reg_read(dev, RK817_POWER_EN1);
power_en2 = pmic_reg_read(dev, RK817_POWER_EN2);

1
include/power/rk8xx_pmic.h
View File

@ -211,6 +211,7 @@ enum {
#define RK8XX_ON_SOURCE 0xae
#define RK8XX_OFF_SOURCE 0xaf
#define RK817_BUCK4_CMIN 0xc6
#define RK817_ON_SOURCE 0xf5
#define RK817_OFF_SOURCE 0xf6