evie/android_kernel_oneplus_msm8998
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

power: smb135x-charger: report icl status in parallel mode

Browse source 
Report the input current limited status via the power supply in
parallel mode in order to better optimize for HVDCP usecases.

Change-Id: Ibd3865828ccbfa44b36839f5d11e7a60b7ada77d
Signed-off-by: Ashay Jaiswal <ashayj@codeaurora.org>
This commit is contained in:
Ashay Jaiswal 2016-03-02 15:28:18 +05:30 • committed by David Keitel
parent 0dc93b15a8
commit 3ad71a8681
1 changed files with 24 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

24
drivers/power/smb135x-charger.c
View file

@ -185,6 +185,9 @@
#define USING_USB_BIT BIT(1)
#define USING_DC_BIT BIT(0)
#define STATUS_2_REG 0x48
#define HARD_LIMIT_STS_BIT BIT(6)
#define STATUS_4_REG 0x4A
#define BATT_NET_CHG_CURRENT_BIT BIT(7)
#define BATT_LESS_THAN_2V BIT(4)
@ -1728,8 +1731,23 @@ static enum power_supply_property smb135x_parallel_properties[] = {
POWER_SUPPLY_PROP_CURRENT_MAX,
POWER_SUPPLY_PROP_VOLTAGE_MAX,
POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX,
POWER_SUPPLY_PROP_INPUT_CURRENT_LIMITED,
};
static bool smb135x_is_input_current_limited(struct smb135x_chg *chip)
{
int rc;
u8 reg;
rc = smb135x_read(chip, STATUS_2_REG, &reg);
if (rc) {
pr_debug("Couldn't read _REG for ICL status rc = %d\n", rc);
return false;
}
return !!(reg & HARD_LIMIT_STS_BIT);
}
static int smb135x_parallel_set_chg_present(struct smb135x_chg *chip,
int present)
{
@ -1967,6 +1985,12 @@ static int smb135x_parallel_get_property(struct power_supply *psy,
else
val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
break;
case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMITED:
if (chip->parallel_charger_present)
val->intval = smb135x_is_input_current_limited(chip);
else
val->intval = 0;
break;
default:
return -EINVAL;
}