6.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Arnd Bergmann arnd@arndb.de
[ Upstream commit d20a3a8a32e3fa564ff25da860c5fc1a97642dfe ]
The driver fails to link when CONFIG_POWER_SUPPLY is disabled:
x86_64-linux-ld: vmlinux.o: in function `cht_wc_extcon_psy_get_prop': extcon-intel-cht-wc.c:(.text+0x15ccda7): undefined reference to `power_supply_get_drvdata' x86_64-linux-ld: vmlinux.o: in function `cht_wc_extcon_pwrsrc_event': extcon-intel-cht-wc.c:(.text+0x15cd3e9): undefined reference to `power_supply_changed' x86_64-linux-ld: vmlinux.o: in function `cht_wc_extcon_probe': extcon-intel-cht-wc.c:(.text+0x15cd596): undefined reference to `devm_power_supply_register'
It should be possible to change the driver to not require this at compile time and still provide other functions, but adding a hard Kconfig dependency does not seem to have any practical downsides and is simpler since the option is normally enabled anyway.
Fixes: 66e31186cd2aa ("extcon: intel-cht-wc: Add support for registering a power_supply class-device") Signed-off-by: Arnd Bergmann arnd@arndb.de Reviewed-by: Hans de Goede hdegoede@redhat.com Signed-off-by: Chanwoo Choi cw00.choi@samsung.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/extcon/Kconfig | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/extcon/Kconfig b/drivers/extcon/Kconfig index 290186e44e6bd..4dd52a6a5b48d 100644 --- a/drivers/extcon/Kconfig +++ b/drivers/extcon/Kconfig @@ -62,6 +62,7 @@ config EXTCON_INTEL_CHT_WC tristate "Intel Cherrytrail Whiskey Cove PMIC extcon driver" depends on INTEL_SOC_PMIC_CHTWC depends on USB_SUPPORT + depends on POWER_SUPPLY select USB_ROLE_SWITCH help Say Y here to enable extcon support for charger detection / control