Re: [PATCH 2/4] usb: phy: twl4030: allow charger to see usb current draw limits.

Pavel Machek
2015-03-02T21:07:27Z

On Tue 2015-02-24 14:40:37, NeilBrown wrote:
> The charger needs to know when a USB gadget has been enumerated
> and what the agreed maximum current was so that it can adjust
> charging accordingly.
>
> So define a "set_power()" function to record the permitted
> draw, and pass a pointer to that when sending USB_EVENT_ENUMERATED
> notification.
>
> Signed-off-by: NeilBrown <neilb@suse.de>
> ---
> drivers/phy/phy-twl4030-usb.c | 27 +++++++++++++++++++++------
> 1 file changed, 21 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/phy/phy-twl4030-usb.c b/drivers/phy/phy-twl4030-usb.c
> index 97c59074233f..023fe150c7a1 100644
> --- a/drivers/phy/phy-twl4030-usb.c
> +++ b/drivers/phy/phy-twl4030-usb.c
> @@ -163,6 +163,11 @@ struct twl4030_usb {
> enum omap_musb_vbus_id_status linkstat;
> bool vbus_supplied;
>
> + /* Permitted vbus draw - only meaningful after

add "in mA"?

> + * USB_EVENT_ENUMERATED
> + */
> + unsigned vbus_draw;
> +
> struct delayed_work id_workaround_work;

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