xref: /linux/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/gm200.c (revision 803074ad77b91e270c1ce90793a924cdb4547162)
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 #include "priv.h"
25 #include "pad.h"
26 
27 static void
28 gm200_aux_autodpcd(struct nvkm_i2c *i2c, int aux, bool enable)
29 {
30 	nvkm_mask(i2c->subdev.device, 0x00d968 + (aux * 0x50), 0x00010000, enable << 16);
31 }
32 
33 static const struct nvkm_i2c_func
34 gm200_i2c = {
35 	.pad_x_new = gf119_i2c_pad_x_new,
36 	.pad_s_new = gm200_i2c_pad_s_new,
37 	.aux = 8,
38 	.aux_stat = gk104_aux_stat,
39 	.aux_mask = gk104_aux_mask,
40 	.aux_autodpcd = gm200_aux_autodpcd,
41 };
42 
43 int
44 gm200_i2c_new(struct nvkm_device *device, int index, struct nvkm_i2c **pi2c)
45 {
46 	return nvkm_i2c_new_(&gm200_i2c, device, index, pi2c);
47 }
48