diff options
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_sysfs.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_sysfs.c b/drivers/gpu/drm/nouveau/nouveau_sysfs.c index 32a23895abd..3c6962d15b2 100644 --- a/drivers/gpu/drm/nouveau/nouveau_sysfs.c +++ b/drivers/gpu/drm/nouveau/nouveau_sysfs.c @@ -28,6 +28,10 @@ #include "nouveau_sysfs.h" +MODULE_PARM_DESC(pstate, "enable sysfs pstate file, which will be moved in the future"); +static int nouveau_pstate; +module_param_named(pstate, nouveau_pstate, int, 0400); + static inline struct drm_device * drm_device(struct device *d) { @@ -160,7 +164,7 @@ nouveau_sysfs_fini(struct drm_device *dev) struct nouveau_drm *drm = nouveau_drm(dev); struct nvif_device *device = &drm->device; - if (sysfs->ctrl.priv) { + if (sysfs && sysfs->ctrl.priv) { device_remove_file(nv_device_base(nvkm_device(device)), &dev_attr_pstate); nvif_object_fini(&sysfs->ctrl); } @@ -177,6 +181,9 @@ nouveau_sysfs_init(struct drm_device *dev) struct nouveau_sysfs *sysfs; int ret; + if (!nouveau_pstate) + return 0; + sysfs = drm->sysfs = kzalloc(sizeof(*sysfs), GFP_KERNEL); if (!sysfs) return -ENOMEM; |