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power: bq24735-charger: add 'ti,external-control' option 

Implement an 'ti,external-control' option for when the charger
shouldn't be configured by the host.

Signed-off-by: Jonathan Tinkham <sctincman@gmail.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
This commit is contained in:
Jonathan Tinkham 2016-02-02 23:03:45 -07:00 committed by Sebastian Reichel
parent a60da83fd8
commit 64024ac7bb
2 changed files with 13 additions and 0 deletions
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11
drivers/power/bq24735-charger.c
View File

@ -106,6 +106,9 @@ static int bq24735_update_word(struct i2c_client *client, u8 reg,
static inline int bq24735_enable_charging(struct bq24735 *charger)
{
if (charger->pdata->ext_control)
return 0;
return bq24735_update_word(charger->client, BQ24735_CHG_OPT,
BQ24735_CHG_OPT_CHARGE_DISABLE,
~BQ24735_CHG_OPT_CHARGE_DISABLE);
@ -113,6 +116,9 @@ static inline int bq24735_enable_charging(struct bq24735 *charger)
static inline int bq24735_disable_charging(struct bq24735 *charger)
{
if (charger->pdata->ext_control)
return 0;
return bq24735_update_word(charger->client, BQ24735_CHG_OPT,
BQ24735_CHG_OPT_CHARGE_DISABLE,
BQ24735_CHG_OPT_CHARGE_DISABLE);
@ -124,6 +130,9 @@ static int bq24735_config_charger(struct bq24735 *charger)
int ret;
u16 value;
if (pdata->ext_control)
return 0;
if (pdata->charge_current) {
value = pdata->charge_current & BQ24735_CHARGE_CURRENT_MASK;
@ -322,6 +331,8 @@ static struct bq24735_platform *bq24735_parse_dt_data(struct i2c_client *client)
if (!ret)
pdata->input_current = val;
pdata->ext_control = of_property_read_bool(np, "ti,external-control");
return pdata;
}

2
include/linux/power/bq24735-charger.h
View File

@ -32,6 +32,8 @@ struct bq24735_platform {
int status_gpio_active_low;
bool status_gpio_valid;
bool ext_control;
char **supplied_to;
size_t num_supplicants;
};