linux/drivers/usb/typec
Adam Thomson c413767e66 usb: typec: tcpm: Fix sink PDO starting index for PPS APDO selection
There is a bug in the sink PDO search code when trying to select
a PPS APDO. The current code actually sets the starting index for
searching to whatever value 'i' is, rather than choosing index 1
to avoid the first PDO (always 5V fixed). As a result, for sources
which support PPS but whose PPS APDO index does not match with the
supporting sink PPS APDO index for the platform, no valid PPS APDO
will be found so this feature will not be permitted.

Sadly in testing, both Source and Sink capabilities matched up and
this was missed. Code is now updated to correctly set the start
index to 1, and testing with additional PPS capable sources show
this to work as expected.

Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Fixes: 2eadc33f40 ("typec: tcpm: Add core support for sink side PPS")
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-07-20 16:40:04 +02:00
..
fusb302 USB: typec: fsusb302: no need to check return value of debugfs_create_dir() 2018-05-31 16:03:59 +02:00
mux usb: typec: driver for Pericom PI3USB30532 Type-C cross switch 2018-03-22 13:49:28 +01:00
ucsi usb: typec: ucsi: Fix for incorrect status data issue 2018-06-25 21:30:12 +08:00
class.c usb: typec: Separate the definitions for data and power roles 2018-03-22 13:40:10 +01:00
Kconfig typec: tcpm: Represent source supply through power_supply 2018-04-25 14:20:20 +02:00
Makefile usb: typec: driver for Pericom PI3USB30532 Type-C cross switch 2018-03-22 13:49:28 +01:00
mux.c usb: typec: Fix htmldocs warning 2018-05-24 18:14:28 +02:00
tcpm.c usb: typec: tcpm: Fix sink PDO starting index for PPS APDO selection 2018-07-20 16:40:04 +02:00
tps6598x.c usb: typec: tps6598x: handle block reads separately with plain-I2C adapters 2018-05-03 10:55:31 -07:00
typec_wcove.c usb: typec: wcove: Remove dependency on HW FSM 2018-05-24 18:17:00 +02:00