Whitebox
/
u-boot
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

misc:pmic:trats: Correct procedure of enabling/disabling USB regulators

Browse Source 
In the MAX8997, LDO regulators needs to preserve previously set voltage
values.

Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
master
Łukasz Majewski 13 years ago committed by Albert ARIBAUD
parent c20545691a
commit a0f5b5a3a2
1 changed files with 11 additions and 4 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Show Stats Download Patch File Download Diff File
  1. 15
      board/samsung/trats/trats.c

15
board/samsung/trats/trats.c
Unescape View File

@ -220,6 +220,7 @@ int board_mmc_init(bd_t *bis)
static int s5pc210_phy_control(int on)
{
int ret = 0;
u32 val = 0;
struct pmic *p = get_pmic();
if (pmic_probe(p))
@ -228,11 +229,17 @@ static int s5pc210_phy_control(int on)
if (on) {
ret |= pmic_set_output(p, MAX8997_REG_SAFEOUTCTRL,
ENSAFEOUT1, LDO_ON);
ret |= pmic_reg_write(p, MAX8997_REG_LDO3CTRL, EN_LDO);
ret |= pmic_reg_write(p, MAX8997_REG_LDO8CTRL, EN_LDO);
ret |= pmic_reg_read(p, MAX8997_REG_LDO3CTRL, &val);
ret |= pmic_reg_write(p, MAX8997_REG_LDO3CTRL, EN_LDO | val);
ret |= pmic_reg_read(p, MAX8997_REG_LDO8CTRL, &val);
ret |= pmic_reg_write(p, MAX8997_REG_LDO8CTRL, EN_LDO | val);
} else {
ret |= pmic_reg_write(p, MAX8997_REG_LDO8CTRL, DIS_LDO);
ret |= pmic_reg_write(p, MAX8997_REG_LDO3CTRL, DIS_LDO);
ret |= pmic_reg_read(p, MAX8997_REG_LDO8CTRL, &val);
ret |= pmic_reg_write(p, MAX8997_REG_LDO8CTRL, DIS_LDO | val);
ret |= pmic_reg_read(p, MAX8997_REG_LDO3CTRL, &val);
ret |= pmic_reg_write(p, MAX8997_REG_LDO3CTRL, DIS_LDO | val);
ret |= pmic_set_output(p, MAX8997_REG_SAFEOUTCTRL,
ENSAFEOUT1, LDO_OFF);
}

Write Preview
Loading…
Cancel
Save