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xcap
xcap-capability-linux
Commits
04de6a04
Commit
04de6a04
authored
Jul 28, 2011
by
Ben Skeggs
Browse files
drm/nv41/pm: implement a second type of fanspeed pwm
Signed-off-by:
Ben Skeggs
<
bskeggs@redhat.com
>
parent
9232969e
Changes
3
Hide whitespace changes
Inline
Side-by-side
drivers/gpu/drm/nouveau/nouveau_pm.h
View file @
04de6a04
...
...
@@ -58,6 +58,8 @@ void *nv40_pm_clocks_pre(struct drm_device *, struct nouveau_pm_level *);
void
nv40_pm_clocks_set
(
struct
drm_device
*
,
void
*
);
int
nv40_pm_fanspeed_get
(
struct
drm_device
*
);
int
nv40_pm_fanspeed_set
(
struct
drm_device
*
,
int
percent
);
int
nv41_pm_fanspeed_get
(
struct
drm_device
*
);
int
nv41_pm_fanspeed_set
(
struct
drm_device
*
,
int
percent
);
/* nv50_pm.c */
int
nv50_pm_clock_get
(
struct
drm_device
*
,
u32
id
);
...
...
drivers/gpu/drm/nouveau/nouveau_state.c
View file @
04de6a04
...
...
@@ -298,6 +298,13 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev)
engine
->
pm
.
fanspeed_get
=
nv40_pm_fanspeed_get
;
engine
->
pm
.
fanspeed_set
=
nv40_pm_fanspeed_set
;
break
;
case
0x42
:
case
0x43
:
case
0x47
:
case
0x4b
:
engine
->
pm
.
fanspeed_get
=
nv41_pm_fanspeed_get
;
engine
->
pm
.
fanspeed_set
=
nv41_pm_fanspeed_set
;
break
;
default:
break
;
}
...
...
drivers/gpu/drm/nouveau/nv40_pm.c
View file @
04de6a04
...
...
@@ -372,3 +372,30 @@ nv40_pm_fanspeed_set(struct drm_device *dev, int percent)
nv_wr32
(
dev
,
0x0010f0
,
0x80000000
|
(
duty
<<
16
)
|
divs
);
return
0
;
}
int
nv41_pm_fanspeed_get
(
struct
drm_device
*
dev
)
{
u32
reg
=
nv_rd32
(
dev
,
0x0015f4
);
if
(
reg
&
0x80000000
)
{
u32
divs
=
nv_rd32
(
dev
,
0x0015f8
);
u32
duty
=
(
reg
&
0x7fffffff
);
if
(
divs
&&
divs
>=
duty
)
return
((
divs
-
duty
)
*
100
)
/
divs
;
}
return
100
;
}
int
nv41_pm_fanspeed_set
(
struct
drm_device
*
dev
,
int
percent
)
{
struct
drm_nouveau_private
*
dev_priv
=
dev
->
dev_private
;
struct
nouveau_pm_engine
*
pm
=
&
dev_priv
->
engine
.
pm
;
u32
divs
=
pm
->
pwm_divisor
;
u32
duty
=
((
100
-
percent
)
*
divs
)
/
100
;
nv_wr32
(
dev
,
0x0015f8
,
divs
);
nv_wr32
(
dev
,
0x0015f4
,
duty
|
0x80000000
);
return
0
;
}
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