Implement an 'ti,external-control' option for when the charger
shouldn't be configured by the host.
Signed-off-by: Jonathan Tinkham <sctincman@xxxxxxxxx>
---
drivers/power/bq24735-charger.c | 11 +++++++++++
include/linux/power/bq24735-charger.h | 2 ++
2 files changed, 13 insertions(+)
diff --git a/drivers/power/bq24735-charger.c b/drivers/power/bq24735-charger.c
index f041c16..96afcc1 100644
--- a/drivers/power/bq24735-charger.c
+++ b/drivers/power/bq24735-charger.c
@@ -90,6 +90,9 @@ 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);
@@ -97,6 +100,9 @@ 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);
@@ -108,6 +114,9 @@ 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;
@@ -239,6 +248,8 @@ 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;
}
diff --git a/include/linux/power/bq24735-charger.h b/include/linux/power/bq24735-charger.h
index f536164..6b750c1a 100644
--- a/include/linux/power/bq24735-charger.h
+++ b/include/linux/power/bq24735-charger.h
@@ -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;
};
--
2.7.0
--
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