On Fri, May 25, 2018 at 5:30 PM, Arnd Bergmann <arnd@xxxxxxxx> wrote:
> Using the power supply APIs requires selecting the appropriate
> Kconfig symbol, otherwise we get this build failure:
>
> drivers/hid/hid-steam.o: In function `steam_unregister':
> hid-steam.c:(.text+0x1cc): undefined reference to `power_supply_unregister'
> drivers/hid/hid-steam.o: In function `steam_battery_get_property':
> hid-steam.c:(.text+0x2d2): undefined reference to `power_supply_get_drvdata'
> drivers/hid/hid-steam.o: In function `steam_raw_event':
> hid-steam.c:(.text+0xcba): undefined reference to `power_supply_changed'
> drivers/hid/hid-steam.o: In function `steam_register':
> hid-steam.c:(.text+0x13e3): undefined reference to `power_supply_register'
> hid-steam.c:(.text+0x13fe): undefined reference to `power_supply_powers'
>
> Fixes: f82719790751 ("HID: steam: add battery device.")
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Looks good:
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@xxxxxxxxxx>
> ---
> drivers/hid/Kconfig | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
> index 8a865e3ccea6..a49a10437c40 100644
> --- a/drivers/hid/Kconfig
> +++ b/drivers/hid/Kconfig
> @@ -848,6 +848,7 @@ config HID_SPEEDLINK
> config HID_STEAM
> tristate "Steam Controller support"
> depends on HID
> + select POWER_SUPPLY
> ---help---
> Say Y here if you have a Steam Controller if you want to use it
> without running the Steam Client. It supports both the wired and
> --
> 2.9.0
>
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