1 /* SPDX-License-Identifier: GPL-2.0 */
3 * Copyright (C) 2019 Cadence Design Systems Inc.
9 #include <linux/types.h>
11 #define PHY_SUBMODE_DP 0
12 #define PHY_SUBMODE_EDP 1
15 * struct phy_configure_opts_dp - DisplayPort PHY configuration set
17 * This structure is used to represent the configuration state of a
20 struct phy_configure_opts_dp {
24 * Link Rate, in Mb/s, of the main link.
26 * Allowed values: 1620, 2160, 2430, 2700, 3240, 4320, 5400, 8100 Mb/s
28 unsigned int link_rate;
33 * Number of active, consecutive, data lanes, starting from
34 * lane 0, used for the transmissions on main link.
36 * Allowed values: 1, 2, 4
43 * Voltage swing levels, as specified by DisplayPort specification,
44 * to be used by particular lanes. One value per lane.
45 * voltage[0] is for lane 0, voltage[1] is for lane 1, etc.
49 unsigned int voltage[4];
54 * Pre-emphasis levels, as specified by DisplayPort specification, to be
55 * used by particular lanes. One value per lane.
64 * Flag indicating, whether or not to enable spread-spectrum clocking.
72 * Flag indicating, whether or not reconfigure link rate and SSC to
81 * Flag indicating, whether or not reconfigure lane count to
90 * Flag indicating, whether or not reconfigure voltage swing
91 * and pre-emphasis to requested values. Only lanes specified
92 * by "lanes" parameter will be affected.
98 #endif /* __PHY_DP_H_ */