This code times out on GP108, probably because the BIOS puts it into a bad state.
Since we reset the PMU on driver load anyway, we are at no risk from missing a response from it since we are not waiting for one to begin with.
Signed-off-by: Diego Viola diego.viola@gmail.com --- drivers/gpu/drm/nouveau/nvkm/subdev/pmu/base.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/base.c index a0fe607c9c07..5c802f2d00cb 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/base.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/base.c @@ -102,12 +102,8 @@ nvkm_pmu_reset(struct nvkm_pmu *pmu) if (!pmu->func->enabled(pmu)) return 0;
- /* Inhibit interrupts, and wait for idle. */ + /* Inhibit interrupts. */ nvkm_wr32(device, 0x10a014, 0x0000ffff); - nvkm_msec(device, 2000, - if (!nvkm_rd32(device, 0x10a04c)) - break; - );
/* Reset. */ if (pmu->func->reset)