diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/engine/disp/uoutp.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/engine/disp/uoutp.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/uoutp.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/uoutp.c index 1ea144ecdb31..abedb3e86361 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/uoutp.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/uoutp.c @@ -21,13 +21,38 @@ */ #define nvkm_uoutp(p) container_of((p), struct nvkm_outp, object) #include "outp.h" +#include "ior.h" #include <nvif/if0012.h> static int +nvkm_uoutp_mthd_load_detect(struct nvkm_outp *outp, void *argv, u32 argc) +{ + union nvif_outp_load_detect_args *args = argv; + int ret; + + if (argc != sizeof(args->v0) || args->v0.version != 0) + return -ENOSYS; + + ret = nvkm_outp_acquire(outp, NVKM_OUTP_PRIV, false); + if (ret == 0) { + if (outp->ior->func->sense) { + ret = outp->ior->func->sense(outp->ior, args->v0.data); + args->v0.load = ret < 0 ? 0 : ret; + } else { + ret = -EINVAL; + } + nvkm_outp_release(outp, NVKM_OUTP_PRIV); + } + + return ret; +} + +static int nvkm_uoutp_mthd_noacquire(struct nvkm_outp *outp, u32 mthd, void *argv, u32 argc) { switch (mthd) { + case NVIF_OUTP_V0_LOAD_DETECT: return nvkm_uoutp_mthd_load_detect(outp, argv, argc); default: break; } |