[deliverable/linux.git] / drivers / gpu / drm / nouveau / core / subdev / clock / nva3.c

/*
 * 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/clock.h>
#include <subdev/bios.h>
#include <subdev/bios/pll.h>

#include "pll.h"

struct nva3_clock_priv {
	struct nouveau_clock base;
};

int
nva3_clock_pll_calc(struct nouveau_clock *clock, struct nvbios_pll *info,
		    int clk, struct nouveau_pll_vals *pv)
{
	int ret, N, M, P;

	ret = nva3_pll_calc(nv_subdev(clock), info, clk, &N, NULL, &M, &P);

	if (ret > 0) {
		pv->refclk = info->refclk;
		pv->N1 = N;
		pv->M1 = M;
		pv->log2P = P;
	}
	return ret;
}


static int
nva3_clock_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
		struct nouveau_oclass *oclass, void *data, u32 size,
		struct nouveau_object **pobject)
{
	struct nva3_clock_priv *priv;
	int ret;

	ret = nouveau_clock_create(parent, engine, oclass, &priv);
	*pobject = nv_object(priv);
	if (ret)
		return ret;

	priv->base.pll_calc = nva3_clock_pll_calc;
	return 0;
}

struct nouveau_oclass
nva3_clock_oclass = {
	.handle = NV_SUBDEV(CLOCK, 0xa3),
	.ofuncs = &(struct nouveau_ofuncs) {
		.ctor = nva3_clock_ctor,
		.dtor = _nouveau_clock_dtor,
		.init = _nouveau_clock_init,
		.fini = _nouveau_clock_fini,
	},
};
Commit	Line	Data
8aceb7de BS	1	/*
	2	* Copyright 2012 Red Hat Inc.
	3	*
	4	* Permission is hereby granted, free of charge, to any person obtaining a
	5	* copy of this software and associated documentation files (the "Software"),
	6	* to deal in the Software without restriction, including without limitation
	7	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	8	* and/or sell copies of the Software, and to permit persons to whom the
	9	* Software is furnished to do so, subject to the following conditions:
	10	*
	11	* The above copyright notice and this permission notice shall be included in
	12	* all copies or substantial portions of the Software.
	13	*
	14	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	15	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	16	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	17	* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
	18	* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
	19	* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
	20	* OTHER DEALINGS IN THE SOFTWARE.
	21	*
	22	* Authors: Ben Skeggs
	23	*/
	24
	25	#include <subdev/clock.h>
70790f4f BS	26	#include <subdev/bios.h>
	27	#include <subdev/bios/pll.h>
	28
	29	#include "pll.h"
8aceb7de BS	30
	31	struct nva3_clock_priv {
	32	struct nouveau_clock base;
	33	};
	34
d9c39056 ML	35	int
	36	nva3_clock_pll_calc(struct nouveau_clock clock, struct nvbios_pll info,
	37	int clk, struct nouveau_pll_vals *pv)
	38	{
	39	int ret, N, M, P;
	40
7ada785f	41	ret = nva3_pll_calc(nv_subdev(clock), info, clk, &N, NULL, &M, &P);
d9c39056 ML	42
	43	if (ret > 0) {
	44	pv->refclk = info->refclk;
	45	pv->N1 = N;
	46	pv->M1 = M;
	47	pv->log2P = P;
	48	}
	49	return ret;
	50	}
	51
	52
8aceb7de BS	53	static int
	54	nva3_clock_ctor(struct nouveau_object parent, struct nouveau_object engine,
	55	struct nouveau_oclass oclass, void data, u32 size,
	56	struct nouveau_object **pobject)
	57	{
	58	struct nva3_clock_priv *priv;
	59	int ret;
	60
	61	ret = nouveau_clock_create(parent, engine, oclass, &priv);
	62	*pobject = nv_object(priv);
	63	if (ret)
	64	return ret;
	65
d9c39056	66	priv->base.pll_calc = nva3_clock_pll_calc;
8aceb7de BS	67	return 0;
	68	}
	69
	70	struct nouveau_oclass
	71	nva3_clock_oclass = {
	72	.handle = NV_SUBDEV(CLOCK, 0xa3),
	73	.ofuncs = &(struct nouveau_ofuncs) {
	74	.ctor = nva3_clock_ctor,
	75	.dtor = _nouveau_clock_dtor,
	76	.init = _nouveau_clock_init,
	77	.fini = _nouveau_clock_fini,
	78	},
	79	};