diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/engine/disp/outp.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/engine/disp/outp.c | 39 |
1 files changed, 26 insertions, 13 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/outp.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/outp.c index 3ed93df475fc..5b55598e09c8 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/outp.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/outp.c @@ -104,7 +104,7 @@ nvkm_outp_release_or(struct nvkm_outp *outp, u8 user) } } -static inline int +int nvkm_outp_acquire_ior(struct nvkm_outp *outp, u8 user, struct nvkm_ior *ior) { outp->ior = ior; @@ -247,32 +247,30 @@ nvkm_outp_fini(struct nvkm_outp *outp) outp->func->fini(outp); } -static void -nvkm_outp_init_route(struct nvkm_outp *outp) +struct nvkm_ior * +nvkm_outp_inherit(struct nvkm_outp *outp) { struct nvkm_disp *disp = outp->disp; + struct nvkm_ior *ior; enum nvkm_ior_proto proto; enum nvkm_ior_type type; - struct nvkm_ior *ior; int id, link; /* Find any OR from the class that is able to support this device. */ proto = nvkm_outp_xlat(outp, &type); if (proto == UNKNOWN) - return; + return NULL; ior = nvkm_ior_find(disp, type, -1); - if (!ior) { - WARN_ON(1); - return; - } + if (WARN_ON(!ior)) + return NULL; /* Determine the specific OR, if any, this device is attached to. */ if (ior->func->route.get) { id = ior->func->route.get(outp, &link); if (id < 0) { OUTP_DBG(outp, "no route"); - return; + return NULL; } } else { /* Prior to DCB 4.1, this is hardwired like so. */ @@ -281,10 +279,24 @@ nvkm_outp_init_route(struct nvkm_outp *outp) } ior = nvkm_ior_find(disp, type, id); - if (!ior) { - WARN_ON(1); + if (WARN_ON(!ior)) + return NULL; + + return ior; +} + +static void +nvkm_outp_init_route(struct nvkm_outp *outp) +{ + enum nvkm_ior_proto proto; + enum nvkm_ior_type type; + struct nvkm_ior *ior; + + /* Find any OR from the class that is able to support this device. */ + proto = nvkm_outp_xlat(outp, &type); + ior = outp->func->inherit(outp); + if (!ior) return; - } /* Determine if the OR is already configured for this device. */ ior->func->state(ior, &ior->arm); @@ -362,6 +374,7 @@ nvkm_outp_new_(const struct nvkm_outp_func *func, struct nvkm_disp *disp, static const struct nvkm_outp_func nvkm_outp = { .detect = nvkm_outp_detect, + .inherit = nvkm_outp_inherit, }; int |