TencentOS-kernel/drivers/i2c
Hans de Goede 2b5206f1a7 i2c: core: Restore acpi_walk_dep_device_list() getting called after registering the ACPI i2c devs
[ Upstream commit 8058d69905058ec8f467a120b5ec5bb831ea67f3 ]

Commit 21653a4181ff ("i2c: core: Call i2c_acpi_install_space_handler()
before i2c_acpi_register_devices()")'s intention was to only move the
acpi_install_address_space_handler() call to the point before where
the ACPI declared i2c-children of the adapter where instantiated by
i2c_acpi_register_devices().

But i2c_acpi_install_space_handler() had a call to
acpi_walk_dep_device_list() hidden (that is I missed it) at the end
of it, so as an unwanted side-effect now acpi_walk_dep_device_list()
was also being called before i2c_acpi_register_devices().

Move the acpi_walk_dep_device_list() call to the end of
i2c_acpi_register_devices(), so that it is once again called *after*
the i2c_client-s hanging of the adapter have been created.

This fixes the Microsoft Surface Go 2 hanging at boot.

Fixes: 21653a4181ff ("i2c: core: Call i2c_acpi_install_space_handler() before i2c_acpi_register_devices()")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=209627
Reported-by: Rainer Finke <rainer@finke.cc>
Reported-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Suggested-by: Maximilian Luz <luzmaximilian@gmail.com>
Tested-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-03-16 16:39:11 +08:00
..
algos i2c: algo: pca: Reapply i2c bus settings after reset 2021-03-16 16:36:14 +08:00
busses i2c: rcar: Auto select RESET_CONTROLLER 2021-03-16 16:38:59 +08:00
muxes i2c: mux: demux-pinctrl: Fix an error handling path in 'i2c_demux_pinctrl_probe()' 2021-03-16 16:28:07 +08:00
Kconfig Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
Makefile Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
i2c-boardinfo.c Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
i2c-core-acpi.c i2c: core: Restore acpi_walk_dep_device_list() getting called after registering the ACPI i2c devs 2021-03-16 16:39:11 +08:00
i2c-core-base.c i2c: core: Call i2c_acpi_install_space_handler() before i2c_acpi_register_devices() 2021-03-16 16:37:31 +08:00
i2c-core-of.c Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
i2c-core-slave.c i2c: slave: add sanity check when unregistering 2021-03-16 16:33:06 +08:00
i2c-core-smbus.c i2c: core: check returned size of emulated smbus block read 2021-03-16 16:31:02 +08:00
i2c-core.h Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
i2c-dev.c i2c: dev: Fix the race between the release of i2c_dev and cdev 2021-03-16 16:28:06 +08:00
i2c-mux.c Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
i2c-slave-eeprom.c Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
i2c-smbus.c Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
i2c-stub.c Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00