kernel/linux.git/include/linux/usb/tcpci.h, branch v6.6.131Linux kernel stable tree (mirror)https://git.radix-linux.su/kernel/linux.git/atom?h=v6.6.1312023-08-22T12:44:52+00:00usb: typec: tcpci: clear the fault status bit2023-08-22T12:44:52+00:00Marco Felschm.felsch@pengutronix.de2023-08-16T17:25:02+00:00urn:sha1:23e60c8daf5ec2ab1b731310761b668745fcf6ed
According the "USB Type-C Port Controller Interface Specification v2.0"
the TCPC sets the fault status register bit-7
(AllRegistersResetToDefault) once the registers have been reset to
their default values.
This triggers an alert(-irq) on PTN5110 devices albeit we do mask the
fault-irq, which may cause a kernel hang. Fix this generically by writing
a one to the corresponding bit-7.
Cc: stable@vger.kernel.org
Fixes: 74e656d6b055 ("staging: typec: Type-C Port Controller Interface driver (tcpci)")
Reported-by: "Angus Ainslie (Purism)" <angus@akkea.ca>
Closes: https://lore.kernel.org/all/20190508002749.14816-2-angus@akkea.ca/
Reported-by: Christian Bach <christian.bach@scs.ch>
Closes: https://lore.kernel.org/regressions/ZR0P278MB07737E5F1D48632897D51AC3EB329@ZR0P278MB0773.CHEP278.PROD.OUTLOOK.COM/t/
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Fabio Estevam <festevam@denx.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20230816172502.1155079-1-festevam@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
usb: typec: tcpci: Add callback for evaluating contaminant presence2023-01-17T16:29:23+00:00Badhri Jagan Sridharanbadhri@google.com2023-01-14T09:32:45+00:00urn:sha1:abc028a270f47f86060ef479395d1bb8c2ab6e7e
This change adds callback to evaluate presence of contaminant in
the TCPCI layer.
Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
Link: https://lore.kernel.org/r/20230114093246.1933321-2-badhri@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
usb: typec: tcpci: Move function "tcpci_to_typec_cc" to common2022-08-19T09:05:12+00:00Gene Chengene_chen@richtek.com2022-08-05T07:17:12+00:00urn:sha1:2c8cc0946c14c39b02748fba34325ecae636530a
Move transition function "tcpci_to_typec_cc" to common header
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Gene Chen <gene_chen@richtek.com>
Link: https://lore.kernel.org/r/20220805071714.150882-7-gene.chen.richtek@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
usb: typec: tcpci: move tcpci.h to include/linux/usb/2022-07-08T12:51:16+00:00Xin Jixji@analogixsemi.com2022-07-06T08:34:31+00:00urn:sha1:7963d4d710112bc457f99bdb56608211e561190e
USB PD controllers which consisting of a microcontroller (acting as the TCPM)
and a port controller (TCPC) - may require that the driver for the PD
controller accesses directly also the on-chip port controller in some cases.
Move tcpci.h to include/linux/usb/ is convenience access TCPC registers.
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Xin Ji <xji@analogixsemi.com>
Link: https://lore.kernel.org/r/20220706083433.2415524-1-xji@analogixsemi.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>