xref: /openbmc/linux/include/drm/i2c/sil164.h (revision e5451c8f8330e03ad3cfa16048b4daf961af434f)
1*e190bfe5SFrancisco Jerez /*
2*e190bfe5SFrancisco Jerez  * Copyright (C) 2010 Francisco Jerez.
3*e190bfe5SFrancisco Jerez  * All Rights Reserved.
4*e190bfe5SFrancisco Jerez  *
5*e190bfe5SFrancisco Jerez  * Permission is hereby granted, free of charge, to any person obtaining
6*e190bfe5SFrancisco Jerez  * a copy of this software and associated documentation files (the
7*e190bfe5SFrancisco Jerez  * "Software"), to deal in the Software without restriction, including
8*e190bfe5SFrancisco Jerez  * without limitation the rights to use, copy, modify, merge, publish,
9*e190bfe5SFrancisco Jerez  * distribute, sublicense, and/or sell copies of the Software, and to
10*e190bfe5SFrancisco Jerez  * permit persons to whom the Software is furnished to do so, subject to
11*e190bfe5SFrancisco Jerez  * the following conditions:
12*e190bfe5SFrancisco Jerez  *
13*e190bfe5SFrancisco Jerez  * The above copyright notice and this permission notice (including the
14*e190bfe5SFrancisco Jerez  * next paragraph) shall be included in all copies or substantial
15*e190bfe5SFrancisco Jerez  * portions of the Software.
16*e190bfe5SFrancisco Jerez  *
17*e190bfe5SFrancisco Jerez  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18*e190bfe5SFrancisco Jerez  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19*e190bfe5SFrancisco Jerez  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
20*e190bfe5SFrancisco Jerez  * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
21*e190bfe5SFrancisco Jerez  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
22*e190bfe5SFrancisco Jerez  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
23*e190bfe5SFrancisco Jerez  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24*e190bfe5SFrancisco Jerez  *
25*e190bfe5SFrancisco Jerez  */
26*e190bfe5SFrancisco Jerez 
27*e190bfe5SFrancisco Jerez #ifndef __DRM_I2C_SIL164_H__
28*e190bfe5SFrancisco Jerez #define __DRM_I2C_SIL164_H__
29*e190bfe5SFrancisco Jerez 
30*e190bfe5SFrancisco Jerez /**
31*e190bfe5SFrancisco Jerez  * struct sil164_encoder_params
32*e190bfe5SFrancisco Jerez  *
33*e190bfe5SFrancisco Jerez  * Describes how the sil164 is connected to the GPU. It should be used
34*e190bfe5SFrancisco Jerez  * as the @params parameter of its @set_config method.
35*e190bfe5SFrancisco Jerez  *
36*e190bfe5SFrancisco Jerez  * See "http://www.siliconimage.com/docs/SiI-DS-0021-E-164.pdf".
37*e190bfe5SFrancisco Jerez  */
38*e190bfe5SFrancisco Jerez struct sil164_encoder_params {
39*e190bfe5SFrancisco Jerez 	enum {
40*e190bfe5SFrancisco Jerez 		SIL164_INPUT_EDGE_FALLING = 0,
41*e190bfe5SFrancisco Jerez 		SIL164_INPUT_EDGE_RISING
42*e190bfe5SFrancisco Jerez 	} input_edge;
43*e190bfe5SFrancisco Jerez 
44*e190bfe5SFrancisco Jerez 	enum {
45*e190bfe5SFrancisco Jerez 		SIL164_INPUT_WIDTH_12BIT = 0,
46*e190bfe5SFrancisco Jerez 		SIL164_INPUT_WIDTH_24BIT
47*e190bfe5SFrancisco Jerez 	} input_width;
48*e190bfe5SFrancisco Jerez 
49*e190bfe5SFrancisco Jerez 	enum {
50*e190bfe5SFrancisco Jerez 		SIL164_INPUT_SINGLE_EDGE = 0,
51*e190bfe5SFrancisco Jerez 		SIL164_INPUT_DUAL_EDGE
52*e190bfe5SFrancisco Jerez 	} input_dual;
53*e190bfe5SFrancisco Jerez 
54*e190bfe5SFrancisco Jerez 	enum {
55*e190bfe5SFrancisco Jerez 		SIL164_PLL_FILTER_ON = 0,
56*e190bfe5SFrancisco Jerez 		SIL164_PLL_FILTER_OFF,
57*e190bfe5SFrancisco Jerez 	} pll_filter;
58*e190bfe5SFrancisco Jerez 
59*e190bfe5SFrancisco Jerez 	int input_skew; /** < Allowed range [-4, 3], use 0 for no de-skew. */
60*e190bfe5SFrancisco Jerez 	int duallink_skew; /** < Allowed range [-4, 3]. */
61*e190bfe5SFrancisco Jerez };
62*e190bfe5SFrancisco Jerez 
63*e190bfe5SFrancisco Jerez #endif
64