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usb: typec: Register a device for every mode

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Before a device was created for every discovered SVID, but
this will create a device for every discovered mode of every
SVID. The idea is to make it easier to create mode specific
drivers once a bus for the alternate mode is added.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Heikki Krogerus
2018-06-27 18:19:49 +03:00
committed by Greg Kroah-Hartman
parent 93dd2112c7
commit 4ab8c18d4d
3 changed files with 88 additions and 176 deletions
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39
include/linux/usb/typec.h
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@@ -92,40 +92,22 @@ struct usb_pd_identity {
int typec_partner_set_identity(struct typec_partner *partner);
int typec_cable_set_identity(struct typec_cable *cable);
/*
* struct typec_mode_desc - Individual Mode of an Alternate Mode
* @index: Index of the Mode within the SVID
* @vdo: VDO returned by Discover Modes USB PD command
* @desc: Optional human readable description of the mode
* @roles: Only for ports. DRP if the mode is available in both roles
*
* Description of a mode of an Alternate Mode which a connector, cable plug or
* partner supports. Every mode will have it's own sysfs group. The details are
* the VDO returned by discover modes command, description for the mode and
* active flag telling has the mode being entered or not.
*/
struct typec_mode_desc {
int index;
u32 vdo;
char *desc;
/* Only used with ports */
enum typec_port_type roles;
};
/*
* struct typec_altmode_desc - USB Type-C Alternate Mode Descriptor
* @svid: Standard or Vendor ID
* @n_modes: Number of modes
* @modes: Array of modes supported by the Alternate Mode
* @mode: Index of the Mode
* @vdo: VDO returned by Discover Modes USB PD command
* @roles: Only for ports. DRP if the mode is available in both roles
*
* Representation of an Alternate Mode that has SVID assigned by USB-IF. The
* array of modes will list the modes of a particular SVID that are supported by
* a connector, partner of a cable plug.
* Description of an Alternate Mode which a connector, cable plug or partner
* supports.
*/
struct typec_altmode_desc {
u16 svid;
int n_modes;
struct typec_mode_desc modes[ALTMODE_MAX_MODES];
u8 mode;
u32 vdo;
/* Only used with ports */
enum typec_port_type roles;
};
struct typec_altmode
@@ -141,8 +123,7 @@ void typec_unregister_altmode(struct typec_altmode *altmode);
struct typec_port *typec_altmode2port(struct typec_altmode *alt);
void typec_altmode_update_active(struct typec_altmode *alt, int mode,
bool active);
void typec_altmode_update_active(struct typec_altmode *alt, bool active);
enum typec_plug_index {
TYPEC_PLUG_SOP_P,