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

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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.

Cc: Peter Chen <Peter.Chen@nxp.com>
Cc: Felipe Balbi <balbi@kernel.org>
Cc: Chunfeng Yun <chunfeng.yun@mediatek.com>
Cc: Bin Liu <b-liu@ti.com>
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20200302135353.56659-6-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Heikki Krogerus
2020-03-02 16:53:49 +03:00
committed by Greg Kroah-Hartman
parent 69af044a77
commit bce3052f0c
10 changed files with 77 additions and 59 deletions
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5
include/linux/usb/role.h
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@@ -13,8 +13,9 @@ enum usb_role {
USB_ROLE_DEVICE,
};
typedef int (*usb_role_switch_set_t)(struct device *dev, enum usb_role role);
typedef enum usb_role (*usb_role_switch_get_t)(struct device *dev);
typedef int (*usb_role_switch_set_t)(struct usb_role_switch *sw,
enum usb_role role);
typedef enum usb_role (*usb_role_switch_get_t)(struct usb_role_switch *sw);
/**
* struct usb_role_switch_desc - USB Role Switch Descriptor