NothingOSS/android_kernel_msm-6.1_nothing_sm7635
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

power: supply: bq27xxx: Add Hibernate mode support

Browse source 
In Hibernate mode, the HW and SW state may go out of sync, as the HW is
turned off, but SW state is preserved. This may cause the irqs to not
work properly after the Hibernate exit.

To avoid this issue, in the Hibernate exit path, free and re-request the
interrupts, to make sure that the HW state is restored.

Change-Id: I1b38acd6b76f1629d0ed76066b0b5f2ae500a0ce
Signed-off-by: Rakesh Kota <quic_kotarake@quicinc.com>
Signed-off-by: Monish Chunara <quic_mchunara@quicinc.com>
This commit is contained in:
Rakesh Kota 2024-01-18 11:57:12 +05:30 • committed by Monish Siraj Chunara
parent 06e3ba61ec
commit 0c804048d9
1 changed files with 23 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

23
drivers/power/supply/bq27xxx_battery_i2c.c
View file

@ -167,6 +167,28 @@ static int bq27xx_parse_dt(struct bq27xxx_device_info *di,
}
#endif
static int bq27xxx_restore(struct device *dev)
{
int ret = 0;
struct i2c_client *client = to_i2c_client(dev);
struct bq27xxx_device_info *di = i2c_get_clientdata(client);
if (client->irq > 0) {
disable_irq_nosync(client->irq);
devm_free_irq(dev, client->irq, di);
ret = request_threaded_irq(client->irq,
NULL, bq27xxx_battery_irq_handler_thread,
IRQF_ONESHOT,
di->name, di);
}
return ret;
}
static const struct dev_pm_ops bq27xxx_pm_ops = {
.restore = bq27xxx_restore,
};
static int bq27xxx_battery_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
@ -340,6 +362,7 @@ static struct i2c_driver bq27xxx_battery_i2c_driver = {
.driver = {
.name = "bq27xxx-battery",
.of_match_table = of_match_ptr(bq27xxx_battery_i2c_of_match_table),
.pm = &bq27xxx_pm_ops,
},
.probe = bq27xxx_battery_i2c_probe,
.remove = bq27xxx_battery_i2c_remove,