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linux/drivers/usb/typec
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Marco Felsch 23e60c8daf usb: typec: tcpci: clear the fault status bit 
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: 74e656d6b0 ("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>
2023-08-22 14:44:52 +02:00
..
altmodes usb: typec: altmodes/displayport: Signal hpd when configuring pin assignment 2023-08-04 14:54:54 +02:00
mux Merge 6.5-rc6 into usb-next 2023-08-14 22:22:31 +02:00
tcpm usb: typec: tcpci: clear the fault status bit 2023-08-22 14:44:52 +02:00
tipd Merge 6.4-rc5 into usb-next 2023-06-05 07:39:02 +02:00
ucsi usb: typec: ucsi: Add debugfs for ucsi commands 2023-08-08 10:36:18 +02:00
anx7411.c usb: Switch i2c drivers back to use .probe() 2023-05-29 15:53:11 +01:00
bus.c usb: typec: bus: verify partner exists in typec_altmode_attention 2023-08-22 14:44:28 +02:00
bus.h USB: mark all struct bus_type as const 2023-03-23 13:22:00 +01:00
class.c usb: typec: Use sysfs_emit_at when concatenating the string 2023-07-25 17:45:29 +02:00
class.h usb: typec: Add retimer handle to port 2022-07-14 16:24:05 +02:00
hd3ss3220.c usb: Switch i2c drivers back to use .probe() 2023-05-29 15:53:11 +01:00
Kconfig usb: typec: qcom: Add Qualcomm PMIC Type-C driver 2023-05-13 19:03:46 +09:00
Makefile usb: typec: qcom: Add Qualcomm PMIC Type-C driver 2023-05-13 19:03:46 +09:00
mux.c usb: typec: mux: Remove alt mode parameters from the API 2023-05-29 15:17:52 +01:00
mux.h usb: typec: mux: Introduce indirection 2022-04-26 13:47:13 +02:00
pd.c usb: typec: Fix fast_role_swap_current show function 2023-06-13 12:16:07 +02:00
pd.h usb: typec: Separate USB Power Delivery from USB Type-C 2022-06-12 06:49:47 +02:00
port-mapper.c ACPI: bus: Introduce acpi_bus_for_each_dev() 2022-03-02 20:55:47 +01:00
retimer.c drivers: remove struct module * setting from struct class 2023-03-17 15:16:27 +01:00
retimer.h usb: typec: Make bus switch code retimer-aware 2023-01-17 17:29:00 +01:00
rt1719.c usb: Switch i2c drivers back to use .probe() 2023-05-29 15:53:11 +01:00
stusb160x.c usb: Switch i2c drivers back to use .probe() 2023-05-29 15:53:11 +01:00
wusb3801.c usb: Switch i2c drivers back to use .probe() 2023-05-29 15:53:11 +01:00