On Tue, May 3, 2016 at 9:00 AM, Baolin Wang <[email protected]> wrote: > Integrate with the newly added USB charger interface to limit the current > we draw from the USB input based on the input device configuration > identified by the USB stack, allowing us to charge more quickly from high > current inputs without drawing more current than specified from others. > > Signed-off-by: Mark Brown <[email protected]> > Signed-off-by: Baolin Wang <[email protected]> > Acked-by: Lee Jones <[email protected]> > Acked-by: Charles Keepax <[email protected]> > Acked-by: Peter Chen <[email protected]> > Acked-by: Sebastian Reichel <[email protected]> > --- > drivers/power/wm831x_power.c | 69 > ++++++++++++++++++++++++++++++++++++++ > include/linux/mfd/wm831x/pdata.h | 3 ++ > 2 files changed, 72 insertions(+) > > diff --git a/drivers/power/wm831x_power.c b/drivers/power/wm831x_power.c > index 7082301..cef1812 100644 > --- a/drivers/power/wm831x_power.c > +++ b/drivers/power/wm831x_power.c > @@ -13,6 +13,7 @@ > #include <linux/platform_device.h> > #include <linux/power_supply.h> > #include <linux/slab.h> > +#include <linux/usb/charger.h> > > #include <linux/mfd/wm831x/core.h> > #include <linux/mfd/wm831x/auxadc.h> > @@ -31,6 +32,8 @@ struct wm831x_power { > char usb_name[20]; > char battery_name[20]; > bool have_battery; > + struct usb_charger *usb_charger; > + struct notifier_block usb_notify; > }; > > static int wm831x_power_check_online(struct wm831x *wm831x, int supply, > @@ -125,6 +128,43 @@ static enum power_supply_property wm831x_usb_props[] = { > POWER_SUPPLY_PROP_VOLTAGE_NOW, > }; > > +/* In milliamps */ > +static const unsigned int wm831x_usb_limits[] = { > + 0, > + 2, > + 100, > + 500, > + 900, > + 1500, > + 1800, > + 550, > +};
Just for curiosity, How these current limits are getting decided? Can we have some proper defines over here so that it can be grasped easily? Thanks Manish Badarkhe -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
