diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/clock/nv04.c')
-rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/clock/nv04.c | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/clock/nv04.c b/drivers/gpu/drm/nouveau/nvkm/subdev/clock/nv04.c new file mode 100644 index 000000000000..4c48232686be --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/clock/nv04.c @@ -0,0 +1,105 @@ +/* + * Copyright 2012 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: Ben Skeggs + */ + +#include <subdev/bios.h> +#include <subdev/bios/pll.h> +#include <subdev/clock.h> +#include <subdev/devinit/nv04.h> + +#include "pll.h" + +struct nv04_clock_priv { + struct nouveau_clock base; +}; + +int +nv04_clock_pll_calc(struct nouveau_clock *clock, struct nvbios_pll *info, + int clk, struct nouveau_pll_vals *pv) +{ + int N1, M1, N2, M2, P; + int ret = nv04_pll_calc(nv_subdev(clock), info, clk, &N1, &M1, &N2, &M2, &P); + if (ret) { + pv->refclk = info->refclk; + pv->N1 = N1; + pv->M1 = M1; + pv->N2 = N2; + pv->M2 = M2; + pv->log2P = P; + } + return ret; +} + +int +nv04_clock_pll_prog(struct nouveau_clock *clk, u32 reg1, + struct nouveau_pll_vals *pv) +{ + struct nouveau_devinit *devinit = nouveau_devinit(clk); + int cv = nouveau_bios(clk)->version.chip; + + if (cv == 0x30 || cv == 0x31 || cv == 0x35 || cv == 0x36 || + cv >= 0x40) { + if (reg1 > 0x405c) + setPLL_double_highregs(devinit, reg1, pv); + else + setPLL_double_lowregs(devinit, reg1, pv); + } else + setPLL_single(devinit, reg1, pv); + + return 0; +} + +static struct nouveau_clocks +nv04_domain[] = { + { nv_clk_src_max } +}; + +static int +nv04_clock_ctor(struct nouveau_object *parent, struct nouveau_object *engine, + struct nouveau_oclass *oclass, void *data, u32 size, + struct nouveau_object **pobject) +{ + struct nv04_clock_priv *priv; + int ret; + + ret = nouveau_clock_create(parent, engine, oclass, nv04_domain, NULL, 0, + false, &priv); + *pobject = nv_object(priv); + if (ret) + return ret; + + priv->base.pll_calc = nv04_clock_pll_calc; + priv->base.pll_prog = nv04_clock_pll_prog; + return 0; +} + +struct nouveau_oclass +nv04_clock_oclass = { + .handle = NV_SUBDEV(CLOCK, 0x04), + .ofuncs = &(struct nouveau_ofuncs) { + .ctor = nv04_clock_ctor, + .dtor = _nouveau_clock_dtor, + .init = _nouveau_clock_init, + .fini = _nouveau_clock_fini, + }, +}; |