usb: roles: Provide the switch drivers handle to the switch in the API

The USB role callback functions had a parameter pointing to the parent device (struct device) of the switch. The assumption was that the switch parent is always the controller. Firstly, that may not be true in every case, and secondly, it prevents us from supporting devices that supply multiple muxes. Changing the first parameter of usb_role_switch_set_t and usb_role_switch_get_t from struct device to struct usb_role_switch.

Heikki Krogerus committed 6 years ago

Commit bce30521 parent 69af04410 files · +77 −59Browse files

Showing the changes to include/linux (1 of 10 files). Show all

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include/linux/usb/role.h+3−2

@@ -13,8 +13,9 @@ enum usb_role { · 12 unmodified lines
13	USB_ROLE_DEVICE,	13	USB_ROLE_DEVICE,
14	};	14	};
15		15
16	typedef int (usb_role_switch_set_t)(struct device dev, enum usb_role role);	16	typedef int (usb_role_switch_set_t)(struct usb_role_switch sw,
17	typedef enum usb_role (usb_role_switch_get_t)(struct device dev);	17	enum usb_role role);
		18	typedef enum usb_role (usb_role_switch_get_t)(struct usb_role_switch sw);
18		19
19	/**	20	/**
20	* struct usb_role_switch_desc - USB Role Switch Descriptor	21	* struct usb_role_switch_desc - USB Role Switch Descriptor