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SubjectRe: [PATCH] Input: sun4i-ts: add thermal driver dependency
On Fri, Jan 30, 2015 at 2:51 AM, Dmitry Torokhov
<dmitry.torokhov@gmail.com> wrote:
> On Thu, Jan 29, 2015 at 08:50:18AM +0100, Hans de Goede wrote:
>> Hi,
>>
>> On 28-01-15 16:17, Arnd Bergmann wrote:
>> >The sun4i-ts driver has had a dependency on the thermal code
>> >since it was first merged,
>>
>> The "since it was first merged bit" is not true, this is caused
>> by recent changes by ChenYu.
>>
>> Other then that no objections from me against the proposed fix.
>>
>> Regards,
>>
>> Hans
>>
>>
>> but this is not currently enforced
>> >in Kconfig, so in some randconfig builds we get
>> >
>> >drivers/built-in.o: In function `sun4i_ts_remove':
>> >:(.text+0x2376f4): undefined reference to `thermal_zone_of_sensor_unregister'
>> >drivers/built-in.o: In function `sun4i_ts_probe':
>> >:(.text+0x237a94): undefined reference to `thermal_zone_of_sensor_register'
>> >:(.text+0x237c00): undefined reference to `thermal_zone_of_sensor_unregister'
>> >
>> >We need the dependency on THERMAL in order to ensure that this
>> >driver becomes a loadable module if the thermal support itself
>> >is modular, while the dependency on THERMAL_OF is a runtime dependency
>> >and the driver will still build but not work if it is missing.
>> >
>> >Signed-off-by: Arnd Bergmann <arnd@arndb.de>
>> >Fixes: 6decea7c5438e2 ("Input: add driver for Allwinner sunxi SoC's rtp controller")
>> >
>> >diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
>> >index 58917525126e..e2447f0063b7 100644
>> >--- a/drivers/input/touchscreen/Kconfig
>> >+++ b/drivers/input/touchscreen/Kconfig
>> >@@ -943,6 +943,8 @@ config TOUCHSCREEN_SUN4I
>> > tristate "Allwinner sun4i resistive touchscreen controller support"
>> > depends on ARCH_SUNXI || COMPILE_TEST
>> > depends on HWMON
>> >+ depends on THERMAL
>> >+ depends on THERMAL_OF || COMPILE_TEST
>
> THERMAL_OF does have proper stubs and I do not see why we need to force
> having TERMAL even if we don't do compile test. Should the dependency be:
>
> depends on !THERMAL_OF || TERMAL
^^^ typo

Yes this solves the problem.


ChenYu


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