diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/core/subdev/therm/nv84.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/core/subdev/therm/nv84.c | 38 |
1 files changed, 36 insertions, 2 deletions
diff --git a/drivers/gpu/drm/nouveau/core/subdev/therm/nv84.c b/drivers/gpu/drm/nouveau/core/subdev/therm/nv84.c index 1d15c52fad0c..14e2e09bfc24 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/therm/nv84.c +++ b/drivers/gpu/drm/nouveau/core/subdev/therm/nv84.c @@ -24,6 +24,7 @@ */ #include "priv.h" +#include <subdev/fuse.h> struct nv84_therm_priv { struct nouveau_therm_priv base; @@ -32,7 +33,25 @@ struct nv84_therm_priv { int nv84_temp_get(struct nouveau_therm *therm) { - return nv_rd32(therm, 0x20400); + struct nouveau_fuse *fuse = nouveau_fuse(therm); + + if (nv_ro32(fuse, 0x1a8) == 1) + return nv_rd32(therm, 0x20400); + else + return -ENODEV; +} + +void +nv84_sensor_setup(struct nouveau_therm *therm) +{ + struct nouveau_fuse *fuse = nouveau_fuse(therm); + + /* enable temperature reading for cards with insane defaults */ + if (nv_ro32(fuse, 0x1a8) == 1) { + nv_mask(therm, 0x20008, 0x80008000, 0x80000000); + nv_mask(therm, 0x2000c, 0x80000003, 0x00000000); + mdelay(20); /* wait for the temperature to stabilize */ + } } static void @@ -171,6 +190,21 @@ nv84_therm_intr(struct nouveau_subdev *subdev) } static int +nv84_therm_init(struct nouveau_object *object) +{ + struct nv84_therm_priv *priv = (void *)object; + int ret; + + ret = nouveau_therm_init(&priv->base.base); + if (ret) + return ret; + + nv84_sensor_setup(&priv->base.base); + + return 0; +} + +static int nv84_therm_ctor(struct nouveau_object *parent, struct nouveau_object *engine, struct nouveau_oclass *oclass, void *data, u32 size, @@ -228,7 +262,7 @@ nv84_therm_oclass = { .ofuncs = &(struct nouveau_ofuncs) { .ctor = nv84_therm_ctor, .dtor = _nouveau_therm_dtor, - .init = _nouveau_therm_init, + .init = nv84_therm_init, .fini = nv84_therm_fini, }, }; |