Rajat Khandelwal afc0aea702 usb: typec: mux: Enter safe mode only when pins need to be reconfigured ... commit 40bf8f162d upstream. There is no point to enter safe mode during DP/TBT configuration if the DP/TBT was already configured in mux. This is because safe mode is only applicable when there is a need to reconfigure the pins in order to avoid damage within/to port partner. In some chrome systems, IOM/mux is already configured before OS comes up. Thus, when driver is probed, it blindly enters safe mode due to PD negotiations but only after gfx driver lowers dp_phy_ownership, will the IOM complete safe mode and send an ack to PMC. Since, that never happens, we see IPC timeout. Hence, allow safe mode only when pin reconfiguration is not required, which makes sense. Fixes: 43d596e322 ("usb: typec: intel_pmc_mux: Check the port status before connect") Cc: stable <stable@kernel.org> Signed-off-by: Rajat Khandelwal <rajat.khandelwal@linux.intel.com> Signed-off-by: Lee Shawn C <shawn.c.lee@intel.com> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Link: https://lore.kernel.org/r/20221024171611.181468-1-rajat.khandelwal@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-11-26 09:24:45 +01:00
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altmodes	usb: typec: altmodes/displayport: correct pin assignment for UFP receptacles	2022-09-08 12:28:06 +02:00
mux	usb: typec: mux: Enter safe mode only when pins need to be reconfigured	2022-11-26 09:24:45 +01:00
tcpm	usb: typec: tcpm: Return ENOTSUPP for power supply prop writes	2022-09-08 12:28:06 +02:00
tipd	usb: typec: tipd: Forward plug orientation to typec subsystem	2022-04-08 14:22:48 +02:00
ucsi	usb: typec: ucsi: Remove incorrect warning	2022-10-05 10:39:36 +02:00
Kconfig	usb: typec: STUSB160X should select REGMAP_I2C	2021-11-18 19:16:54 +01:00
Makefile	usb: typec: Port mapping utility	2021-04-09 16:00:00 +02:00
bus.c	bus: Make remove callback return void	2021-07-21 11:53:42 +02:00
bus.h	usb: typec: Organize the private headers properly	2021-04-05 09:07:41 +02:00
class.c	usb: typec: add missing uevent when partner support PD	2022-07-21 21:24:42 +02:00
class.h	usb: typec: Link all ports during connector registration	2021-04-09 16:00:00 +02:00
hd3ss3220.c	…
mux.c	usb: typec: mux: Check dev_set_name() return value	2022-06-14 18:36:05 +02:00
mux.h	usb: typec: mux: Use device type instead of device name for matching	2021-05-27 09:23:57 +02:00
port-mapper.c	usb: typec: silence a static checker warning	2021-04-14 15:15:40 +02:00
qcom-pmic-typec.c	…
stusb160x.c	usb: typec: stusb160x: Don't block probing of consumer of "connector" nodes	2021-07-21 09:16:40 +02:00