static void smb347_enter_suspend(struct i2c_client *client)
{
u8 data = 0;
pr_info("%s: ENTER SUSPEND\n", __func__);
smb347_write_reg(client, SMB347_COMMAND_A, 0x80);
smb347_write_reg(client, SMB347_PIN_ENABLE_CONTROL, 0x18);
data = (data | 0x4);
smb347_write_reg(client, SMB347_COMMAND_A, data);
}
static void smb347_set_command_reg(struct i2c_client *client)
{
struct smb347_chip *chip = i2c_get_clientdata(client);
int val, reg;
u8 data;
reg = SMB347_COMMAND_B;
val = smb347_read_reg(client, reg);
if (val >= 0) {
data = (u8) val;
pr_debug("%s : reg (0x%x) = 0x%x\n", __func__, reg, data);
if (chip->chg_mode == CHG_MODE_AC ||
chip->chg_mode == CHG_MODE_MISC ||
chip->chg_mode == CHG_MODE_UNKNOWN) {
/* CommandB : High-current mode */
data = 0x03;
} else if (chip->chg_mode == CHG_MODE_USB) {
/* CommandB : USB5 */
data = 0x02;
} else {
/* CommandB : USB1 */
data = 0x00;
}
if (smb347_write_reg(client, reg, data) < 0)
pr_err("%s : error!\n", __func__);
val = smb347_read_reg(client, reg);
if (val >= 0) {
data = (u8) data;
pr_debug("%s : => reg (0x%x) = 0x%x\n", __func__, reg,
data);
}
}
}
static void smb347_allow_volatile_writes(struct i2c_client *client)
{
int val, reg;
u8 data;
/* Allow volatile writes to CONFIG registers */
reg = SMB347_COMMAND_A;
val = smb347_read_reg(client, reg);
if ((val >= 0) && !(val & 0x80)) {
data = (u8) val;
pr_debug("%s : reg (0x%x) = 0x%x\n", __func__, reg, data);
data |= (0x1 << 7);
if (smb347_write_reg(client, reg, data) < 0)
pr_err("%s : error!\n", __func__);
val = smb347_read_reg(client, reg);
if (val >= 0) {
data = (u8) data;
pr_debug("%s : => reg (0x%x) = 0x%x\n", __func__, reg,
data);
}
}
}
