1/*
2 * Copyright 2014 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#include "pad.h"
25
26struct g94_i2c_pad {
27	struct nvkm_i2c_pad base;
28	int addr;
29};
30
31static int
32g94_i2c_pad_fini(struct nvkm_object *object, bool suspend)
33{
34	struct nvkm_i2c *i2c = (void *)nvkm_i2c(object);
35	struct g94_i2c_pad *pad = (void *)object;
36	nv_mask(i2c, 0x00e50c + pad->addr, 0x00000001, 0x00000001);
37	return nvkm_i2c_pad_fini(&pad->base, suspend);
38}
39
40static int
41g94_i2c_pad_init(struct nvkm_object *object)
42{
43	struct nvkm_i2c *i2c = (void *)nvkm_i2c(object);
44	struct g94_i2c_pad *pad = (void *)object;
45
46	switch (nv_oclass(pad->base.next)->handle) {
47	case NV_I2C_TYPE_DCBI2C(DCB_I2C_NVIO_AUX):
48		nv_mask(i2c, 0x00e500 + pad->addr, 0x0000c003, 0x00000002);
49		break;
50	case NV_I2C_TYPE_DCBI2C(DCB_I2C_NVIO_BIT):
51	default:
52		nv_mask(i2c, 0x00e500 + pad->addr, 0x0000c003, 0x0000c001);
53		break;
54	}
55
56	nv_mask(i2c, 0x00e50c + pad->addr, 0x00000001, 0x00000000);
57	return nvkm_i2c_pad_init(&pad->base);
58}
59
60static int
61g94_i2c_pad_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
62		 struct nvkm_oclass *oclass, void *data, u32 index,
63		 struct nvkm_object **pobject)
64{
65	struct g94_i2c_pad *pad;
66	int ret;
67
68	ret = nvkm_i2c_pad_create(parent, engine, oclass, index, &pad);
69	*pobject = nv_object(pad);
70	if (ret)
71		return ret;
72
73	pad->addr = index * 0x50;;
74	return 0;
75}
76
77struct nvkm_oclass
78g94_i2c_pad_oclass = {
79	.ofuncs = &(struct nvkm_ofuncs) {
80		.ctor = g94_i2c_pad_ctor,
81		.dtor = _nvkm_i2c_pad_dtor,
82		.init = g94_i2c_pad_init,
83		.fini = g94_i2c_pad_fini,
84	},
85};
86