Attachment 118799 Details for Bug 92386 – hack for recognizing sensor on nv43

hack for recognizing sensor on nv43

0001-nouveau-default-term-sensor-data.diff (text/plain), 1.61 KB, created by Andrew Randrianasulu on 2015-10-10 14:48:29 UTC

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Creator: Andrew Randrianasulu

Created: 2015-10-10 14:48:29 UTC

Size: 1.61 KB

patch

obsolete

>diff --git a/drm/nouveau/nvkm/subdev/therm/nv40.c b/drm/nouveau/nvkm/subdev/therm/nv40.c
>index 6326fdc..fed243d 100644
>--- a/drm/nouveau/nvkm/subdev/therm/nv40.c
>+++ b/drm/nouveau/nvkm/subdev/therm/nv40.c
>@@ -76,6 +76,7 @@ nv40_temp_get(struct nvkm_therm *therm)
> 	struct nvbios_therm_sensor *sensor = &therm->bios_sensor;
> 	enum nv40_sensor_style style = nv40_sensor_style(therm);
> 	int core_temp;
>+	int slope_mul_f, slope_div_f, offset_num_f, offset_den_f;
> 
> 	if (style == NEW_STYLE) {
> 		nvkm_wr32(device, 0x15b0, 0x80003fff);
>@@ -88,13 +89,35 @@ nv40_temp_get(struct nvkm_therm *therm)
> 
> 	/* if the slope or the offset is unset, do no use the sensor */
> 	if (!sensor->slope_div || !sensor->slope_mult ||
>-	    !sensor->offset_num || !sensor->offset_den)
>-	    return -ENODEV;
>+	    !sensor->offset_num || !sensor->offset_den)	{
> 
>+	switch (therm->subdev.device->chipset) {
>+	case 0x43:
>+	    slope_mul_f = 792;
>+	    slope_div_f = 1000;
>+	    offset_num_f = 32060;
>+	    offset_den_f = 1000;
>+	    break;
>+	case 0x44:
>+	case 0x47:
>+	    slope_mul_f = 700;
>+	    slope_div_f = 1000;
>+	    offset_num_f = 27839;
>+	    offset_den_f = 1000;
>+	    break;
>+	default:
>+	    return -ENODEV;
>+	}
>+	core_temp = core_temp * slope_mul_f / slope_div_f;
>+	core_temp = core_temp + offset_num_f / offset_den_f;
>+	core_temp = core_temp + sensor->offset_constant - 8;
>+	}
>+	else
>+	{
> 	core_temp = core_temp * sensor->slope_mult / sensor->slope_div;
> 	core_temp = core_temp + sensor->offset_num / sensor->offset_den;
> 	core_temp = core_temp + sensor->offset_constant - 8;
>-
>+	}
> 	/* reserve negative temperatures for errors */
> 	if (core_temp < 0)
> 		core_temp = 0;

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Attachments on bug 92386: 118799 | 118800

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