diff options
| author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2011-04-28 09:41:20 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-04-30 02:24:35 +0200 |
| commit | b002ff6e268b6024d6927a1ce330a14ca162b6ab (patch) | |
| tree | 83bd5dde6f872396cd42762b59f96cf9c024d30a /drivers/usb/renesas_usbhs/mod.h | |
| parent | usb: renesas_usbhs: use delayed_work instead of work_struct (diff) | |
| download | linux-b002ff6e268b6024d6927a1ce330a14ca162b6ab.tar.xz linux-b002ff6e268b6024d6927a1ce330a14ca162b6ab.zip | |
usb: renesas_usbhs: add autonomy mode
Current renesas_usbhs was designed to save power when USB is not connected.
And it assumed platform uses callback to notify connection/disconnection
by external interrupt.
But some SuperH / platform board doesn't have such feature.
This patch adds autonomy mode which detect USB connection/disconnection
by internal interrupt.
But power will be always ON when autonomy mode is selected.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/renesas_usbhs/mod.h')
| -rw-r--r-- | drivers/usb/renesas_usbhs/mod.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/usb/renesas_usbhs/mod.h b/drivers/usb/renesas_usbhs/mod.h index 8644191e164f..5c845a28a21c 100644 --- a/drivers/usb/renesas_usbhs/mod.h +++ b/drivers/usb/renesas_usbhs/mod.h @@ -68,6 +68,19 @@ struct usbhs_mod { struct usbhs_mod_info { struct usbhs_mod *mod[USBHS_MAX]; struct usbhs_mod *curt; /* current mod */ + + /* + * INTSTS0 :: VBINT + * + * This function will be used as autonomy mode + * when platform cannot call notify_hotplug. + * + * This callback cannot be member of "struct usbhs_mod" + * because it will be used even though + * host/gadget has not been selected. + */ + int (*irq_vbus)(struct usbhs_priv *priv, + struct usbhs_irq_state *irq_state); }; /* @@ -81,6 +94,8 @@ int usbhs_mod_change(struct usbhs_priv *priv, int id); int usbhs_mod_probe(struct usbhs_priv *priv); void usbhs_mod_remove(struct usbhs_priv *priv); +void usbhs_mod_autonomy_mode(struct usbhs_priv *priv); + /* * status functions */ |