drm/nouveau/pm: introduce generic handler for on-chip fan controller

The handling of the internal pwm fan controller is similar enough between
current chipsets that it makes sense to share the logic, and bugfixes :)

No hw backends converted yet, will automatically fall-through to the
"old" per-chipset fanspeed hooks for now.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.h b/drivers/gpu/drm/nouveau/nouveau_drv.h
index 251eaf87fa28..ea4009eaab20 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drv.h
+++ b/drivers/gpu/drm/nouveau/nouveau_drv.h
@@ -554,6 +554,8 @@ struct nouveau_pm_engine {
 
         int (*voltage_get)(struct drm_device *);
         int (*voltage_set)(struct drm_device *, int voltage);
+        int (*pwm_get)(struct drm_device *, struct dcb_gpio_entry*, u32*, u32*);
+        int (*pwm_set)(struct drm_device *, struct dcb_gpio_entry*, u32, u32);
         int (*fanspeed_get)(struct drm_device *);
         int (*fanspeed_set)(struct drm_device *, int fanspeed);
         int (*temp_get)(struct drm_device *);