[Nouveau] [PATCH] bios/fan: hardcode the fan mode to linear

[Martin Peres]

On 17/12/15 19:18, Martin Peres wrote:
>
>
> On 29/11/15 16:10, Martin Peres wrote:
>> This is an oversight that made use of the trip-point-based fan 
>> managenent on
>> cards that never expose those. This led the fan to stay at fan_min.
>>
>> Fortunately, the emergency code would kick when the temperature would 
>> reach
>> 90°C.
>>
>> Reported-by: Tom Englund <tomenglund26 at gmail.com>
>> Tested-by: Tom Englund <tomenglund26 at gmail.com>
>
> Tested-by: Daemon32 <lnf.purple at gmail.com>
> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=92126
>
>> Signed-off-by: Martin Peres <martin.peres at free.fr>
>> ---
>>   drm/nouveau/nvkm/subdev/bios/fan.c | 1 +
>>   1 file changed, 1 insertion(+)
>>
>> diff --git a/drm/nouveau/nvkm/subdev/bios/fan.c 
>> b/drm/nouveau/nvkm/subdev/bios/fan.c
>> index 43006db..80fed7e 100644
>> --- a/drm/nouveau/nvkm/subdev/bios/fan.c
>> +++ b/drm/nouveau/nvkm/subdev/bios/fan.c
>> @@ -83,6 +83,7 @@ nvbios_fan_parse(struct nvkm_bios *bios, struct 
>> nvbios_therm_fan *fan)
>>               fan->type = NVBIOS_THERM_FAN_UNK;
>>           }
>>
>> +        fan->fan_mode = NVBIOS_THERM_FAN_LINEAR;
>>           fan->min_duty = nvbios_rd08(bios, data + 0x02);
>>           fan->max_duty = nvbios_rd08(bios, data + 0x03);
>>
>>
>
> Ben, can you merge this patch? It is kind of critical :s And it should 
> be CCed to stable too, without it, some kepler/maxwell get 0% fan 
> power which is kind of dangerous, even without reclocking!

Ping, this is really important :s