xref: /openbmc/linux/drivers/gpu/drm/tegra/mipi-phy.h (revision d2912cb1)
1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * Copyright (C) 2013 NVIDIA Corporation
4  */
5 
6 #ifndef DRM_TEGRA_MIPI_PHY_H
7 #define DRM_TEGRA_MIPI_PHY_H
8 
9 /*
10  * D-PHY timing parameters
11  *
12  * A detailed description of these parameters can be found in the  MIPI
13  * Alliance Specification for D-PHY, Section 5.9 "Global Operation Timing
14  * Parameters".
15  *
16  * All parameters are specified in nanoseconds.
17  */
18 struct mipi_dphy_timing {
19 	unsigned int clkmiss;
20 	unsigned int clkpost;
21 	unsigned int clkpre;
22 	unsigned int clkprepare;
23 	unsigned int clksettle;
24 	unsigned int clktermen;
25 	unsigned int clktrail;
26 	unsigned int clkzero;
27 	unsigned int dtermen;
28 	unsigned int eot;
29 	unsigned int hsexit;
30 	unsigned int hsprepare;
31 	unsigned int hszero;
32 	unsigned int hssettle;
33 	unsigned int hsskip;
34 	unsigned int hstrail;
35 	unsigned int init;
36 	unsigned int lpx;
37 	unsigned int taget;
38 	unsigned int tago;
39 	unsigned int tasure;
40 	unsigned int wakeup;
41 };
42 
43 int mipi_dphy_timing_get_default(struct mipi_dphy_timing *timing,
44 				 unsigned long period);
45 int mipi_dphy_timing_validate(struct mipi_dphy_timing *timing,
46 			      unsigned long period);
47 
48 #endif
49