1/* SPDX-License-Identifier: GPL-2.0 */
 2/*
 3 * ZynqMP DPSUB Subsystem Driver
 4 *
 5 * Copyright (C) 2017 - 2020 Xilinx, Inc.
 6 *
 7 * Authors:
 8 * - Hyun Woo Kwon <hyun.kwon@xilinx.com>
 9 * - Laurent Pinchart <laurent.pinchart@ideasonboard.com>
10 */
11
12#ifndef _ZYNQMP_DPSUB_H_
13#define _ZYNQMP_DPSUB_H_
14
15struct clk;
16struct device;
17struct drm_bridge;
18struct zynqmp_disp;
19struct zynqmp_disp_layer;
20struct zynqmp_dp;
21struct zynqmp_dpsub_drm;
22
23#define ZYNQMP_DPSUB_NUM_LAYERS				2
24
25enum zynqmp_dpsub_port {
26	ZYNQMP_DPSUB_PORT_LIVE_VIDEO,
27	ZYNQMP_DPSUB_PORT_LIVE_GFX,
28	ZYNQMP_DPSUB_PORT_LIVE_AUDIO,
29	ZYNQMP_DPSUB_PORT_OUT_VIDEO,
30	ZYNQMP_DPSUB_PORT_OUT_AUDIO,
31	ZYNQMP_DPSUB_PORT_OUT_DP,
32	ZYNQMP_DPSUB_NUM_PORTS,
33};
34
35enum zynqmp_dpsub_format {
36	ZYNQMP_DPSUB_FORMAT_RGB,
37	ZYNQMP_DPSUB_FORMAT_YCRCB444,
38	ZYNQMP_DPSUB_FORMAT_YCRCB422,
39	ZYNQMP_DPSUB_FORMAT_YONLY,
40};
41
42/**
43 * struct zynqmp_dpsub - ZynqMP DisplayPort Subsystem
44 * @dev: The physical device
45 * @apb_clk: The APB clock
46 * @vid_clk: Video clock
47 * @vid_clk_from_ps: True of the video clock comes from PS, false from PL
48 * @aud_clk: Audio clock
49 * @aud_clk_from_ps: True of the audio clock comes from PS, false from PL
50 * @connected_ports: Bitmask of connected ports in the device tree
51 * @dma_enabled: True if the DMA interface is enabled, false if the DPSUB is
52 *	driven by the live input
53 * @drm: The DRM/KMS device data
54 * @bridge: The DP encoder bridge
55 * @disp: The display controller
56 * @dp: The DisplayPort controller
57 * @dma_align: DMA alignment constraint (must be a power of 2)
58 */
59struct zynqmp_dpsub {
60	struct device *dev;
61
62	struct clk *apb_clk;
63	struct clk *vid_clk;
64	bool vid_clk_from_ps;
65	struct clk *aud_clk;
66	bool aud_clk_from_ps;
67
68	unsigned int connected_ports;
69	bool dma_enabled;
70
71	struct zynqmp_dpsub_drm *drm;
72	struct drm_bridge *bridge;
73
74	struct zynqmp_disp *disp;
75	struct zynqmp_disp_layer *layers[ZYNQMP_DPSUB_NUM_LAYERS];
76	struct zynqmp_dp *dp;
77
78	unsigned int dma_align;
79};
80
81bool zynqmp_dpsub_audio_enabled(struct zynqmp_dpsub *dpsub);
82unsigned int zynqmp_dpsub_get_audio_clk_rate(struct zynqmp_dpsub *dpsub);
83
84void zynqmp_dpsub_release(struct zynqmp_dpsub *dpsub);
85
86#endif /* _ZYNQMP_DPSUB_H_ */