kernel/include/linux/usb/tcpm.h, branch linux-5.2.y

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157

2019-05-30T18:26:37Z

Based on 3 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version [author] [kishon] [vijay] [abraham] [i] [kishon]@[ti] [com] this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version [author] [graeme] [gregory] [gg]@[slimlogic] [co] [uk] [author] [kishon] [vijay] [abraham] [i] [kishon]@[ti] [com] [based] [on] [twl6030]_[usb] [c] [author] [hema] [hk] [hemahk]@[ti] [com] this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1105 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Richard Fontana Reviewed-by: Kate Stewart Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.202006027@linutronix.de Signed-off-by: Greg Kroah-Hartman

usb: typec: tcpm: Notify the tcpc to start connection-detection for SRPs

2019-04-19T12:23:34Z

Some tcpc device-drivers need to explicitly be told to watch for connection events, otherwise the tcpc will not generate any TCPM_CC_EVENTs and devices being plugged into the Type-C port will not be noticed. For dual-role ports tcpm_start_drp_toggling() is used to tell the tcpc to watch for connection events. Sofar we lack a similar callback to the tcpc for single-role ports. With some tcpc-s such as the fusb302 this means no TCPM_CC_EVENTs will be generated when the port is configured as a single-role port. This commit renames start_drp_toggling to start_toggling and since the device-properties are parsed by the tcpm-core, adds a port_type parameter to the start_toggling callback so that the tcpc_dev driver knows the port-type and can act accordingly when it starts toggling. The new start_toggling callback now always gets called if defined, instead of only being called for DRP ports. To avoid this causing undesirable functional changes all existing start_drp_toggling implementations are not only renamed to start_toggling, but also get a port_type check added and return -EOPNOTSUPP when port_type is not DRP. Fixes: ea3b4d5523bc("usb: typec: fusb302: Resolve fixed power role ...") Cc: Adam Thomson Signed-off-by: Hans de Goede Reviewed-by: Guenter Roeck Acked-by: Heikki Krogerus Tested-by: Adam Thomson Signed-off-by: Greg Kroah-Hartman

usb: typec: tcpm: Remove unused functions

2019-02-13T18:40:20Z

tcpm_update_source_capabilities() and tcpm_update_sink_capabilities() are not used anywhere, and I don't recall why I introduced those functions in the first place. Effectively that means that we don't know if they even work, or ever did. Lets remove them. Reported-by: Kyle Tso Signed-off-by: Guenter Roeck Acked-by: Kyle Tso Signed-off-by: Greg Kroah-Hartman

usb: typec: tcpm: Do not disconnect link for self powered devices

2018-11-07T12:20:39Z

During HARD_RESET the data link is disconnected. For self powered device, the spec is advising against doing that. >From USB_PD_R3_0 7.1.5 Response to Hard Resets Device operation during and after a Hard Reset is defined as follows: Self-powered devices Should Not disconnect from USB during a Hard Reset (see Section 9.1.2). Bus powered devices will disconnect from USB during a Hard Reset due to the loss of their power source. Tackle this by letting TCPM know whether the device is self or bus powered. This overcomes unnecessary port disconnections from hard reset. Also, speeds up the enumeration time when connected to Type-A ports. Signed-off-by: Badhri Jagan Sridharan Reviewed-by: Heikki Krogerus --------- Version history: V3: Rebase on top of usb-next V2: Based on feedback from heikki.krogerus@linux.intel.com - self_powered added to the struct tcpm_port which is populated from a. "connector" node of the device tree in tcpm_fw_get_caps() b. "self_powered" node of the tcpc_config in tcpm_copy_caps Based on feedbase from linux@roeck-us.net - Code was refactored - SRC_HARD_RESET_VBUS_OFF sets the link state to false based on self_powered flag V1 located here: https://lkml.org/lkml/2018/9/13/94 Signed-off-by: Greg Kroah-Hartman

usb: typec: tcpm: Support for Alternate Modes

2018-07-02T15:42:36Z

This adds more complete handling of VDMs and registration of partner alternate modes, and introduces callbacks for alternate mode operations. Only DFP role is supported for now. Signed-off-by: Heikki Krogerus Tested-by: Hans de Goede Signed-off-by: Greg Kroah-Hartman

usb: typec: add fwnode to tcpc

2018-06-28T10:49:47Z

Add fwnode handle to get the fwnode so we can get typec configs it contains. Suggested-by: Heikki Krogerus Reviewed-by: Heikki Krogerus Signed-off-by: Li Jun Reviewed-by: Guenter Roeck Signed-off-by: Greg Kroah-Hartman

typec: tcpm: Add core support for sink side PPS

2018-04-25T12:16:00Z

This commit adds code to handle requesting of PPS APDOs. Switching between standard PDOs and APDOs, and re-requesting an APDO to modify operating voltage/current will be triggered by an external call into TCPM. Signed-off-by: Adam Thomson Acked-by: Heikki Krogerus Reviewed-by: Guenter Roeck Signed-off-by: Greg Kroah-Hartman

usb: typec: tcpm: remove max_snk_mv/ma/mw

2018-04-22T14:06:26Z

Since there is no user of max_snk_*, so we can remove them from tcpm. Reviewed-by: Hans de Goede Signed-off-by: Li Jun Reviewed-by: Guenter Roeck Acked-by: Heikki Krogerus Signed-off-by: Greg Kroah-Hartman

usb: typec: tcpm: Use new Type-C switch/mux and usb-role-switch functions

2018-03-22T12:40:10Z

Remove the unused (not implemented anywhere) tcpc_mux_dev abstraction and replace it with calling the new typec_set_orientation, usb_role_switch_set and typec_set_mode functions. Signed-off-by: Hans de Goede Reviewed-by: Guenter Roeck Reviewed-by: Andy Shevchenko Signed-off-by: Heikki Krogerus Signed-off-by: Greg Kroah-Hartman

usb: typec: tcpm: Set USB role switch to device mode when configured as such

2018-03-22T12:40:10Z

Setting the mux to MUX_NONE and the switch to USB_SWITCH_DISCONNECT when the data-role is device is not correct. Plenty of devices support operating as USB device through a (separate) USB device controller. We really need 2 different versions of USB_SWITCH_CONNECT, USB_SWITCH_CONNECT_HOST and USB_SWITCH_DEVICE. Rather then modifying the tcpc_usb_switch enum for this, simply remove it and switch to the usb_role enum which provides exactly this, this will save use needing to convert betweent the 2 enums when calling an usb-role-switch driver later. Besides switching to the usb_role type, this commit also actually sets the mux to TYPEC_MUX_USB and the switch to USB_ROLE_DEVICE instead of setting both to none when the data-role is device. This commit also makes tcpm_reset_port() call tcpm_mux_set(port, TYPEC_MUX_NONE, USB_ROLE_NONE) so that the mux and switch do _not_ stay in their last mode after a detach. Signed-off-by: Hans de Goede Reviewed-by: Guenter Roeck Reviewed-by: Andy Shevchenko Signed-off-by: Heikki Krogerus Signed-off-by: Greg Kroah-Hartman