diff options
Diffstat (limited to 'drivers/gpu/drm/tegra/mipi-phy.h')
| -rw-r--r-- | drivers/gpu/drm/tegra/mipi-phy.h | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/drivers/gpu/drm/tegra/mipi-phy.h b/drivers/gpu/drm/tegra/mipi-phy.h new file mode 100644 index 000000000000..d3591694432d --- /dev/null +++ b/drivers/gpu/drm/tegra/mipi-phy.h @@ -0,0 +1,65 @@ +/* + * Copyright (C) 2013 NVIDIA Corporation + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that copyright + * notice and this permission notice appear in supporting documentation, and + * that the name of the copyright holders not be used in advertising or + * publicity pertaining to distribution of the software without specific, + * written prior permission. The copyright holders make no representations + * about the suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO + * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, + * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER + * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#ifndef DRM_TEGRA_MIPI_PHY_H +#define DRM_TEGRA_MIPI_PHY_H + +/* + * D-PHY timing parameters + * + * A detailed description of these parameters can be found in the MIPI + * Alliance Specification for D-PHY, Section 5.9 "Global Operation Timing + * Parameters". + * + * All parameters are specified in nanoseconds. + */ +struct mipi_dphy_timing { + unsigned int clkmiss; + unsigned int clkpost; + unsigned int clkpre; + unsigned int clkprepare; + unsigned int clksettle; + unsigned int clktermen; + unsigned int clktrail; + unsigned int clkzero; + unsigned int dtermen; + unsigned int eot; + unsigned int hsexit; + unsigned int hsprepare; + unsigned int hszero; + unsigned int hssettle; + unsigned int hsskip; + unsigned int hstrail; + unsigned int init; + unsigned int lpx; + unsigned int taget; + unsigned int tago; + unsigned int tasure; + unsigned int wakeup; +}; + +int mipi_dphy_timing_get_default(struct mipi_dphy_timing *timing, + unsigned long period); +int mipi_dphy_timing_validate(struct mipi_dphy_timing *timing, + unsigned long period); + +#endif |