1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Copyright (c) 2016 Linaro Limited.
4 * Copyright (c) 2014-2016 HiSilicon Limited.
5 */
6
7#ifndef __DW_DSI_REG_H__
8#define __DW_DSI_REG_H__
9
10#define MASK(x) (BIT(x) - 1)
11
12/*
13 * regs
14 */
15#define PWR_UP 0x04 /* Core power-up */
16#define RESET 0
17#define POWERUP BIT(0)
18#define PHY_IF_CFG 0xA4 /* D-PHY interface configuration */
19#define CLKMGR_CFG 0x08 /* the internal clock dividers */
20#define PHY_RSTZ 0xA0 /* D-PHY reset control */
21#define PHY_ENABLECLK BIT(2)
22#define PHY_UNRSTZ BIT(1)
23#define PHY_UNSHUTDOWNZ BIT(0)
24#define PHY_TST_CTRL0 0xB4 /* D-PHY test interface control 0 */
25#define PHY_TST_CTRL1 0xB8 /* D-PHY test interface control 1 */
26#define CLK_TLPX 0x10
27#define CLK_THS_PREPARE 0x11
28#define CLK_THS_ZERO 0x12
29#define CLK_THS_TRAIL 0x13
30#define CLK_TWAKEUP 0x14
31#define DATA_TLPX(x) (0x20 + ((x) << 4))
32#define DATA_THS_PREPARE(x) (0x21 + ((x) << 4))
33#define DATA_THS_ZERO(x) (0x22 + ((x) << 4))
34#define DATA_THS_TRAIL(x) (0x23 + ((x) << 4))
35#define DATA_TTA_GO(x) (0x24 + ((x) << 4))
36#define DATA_TTA_GET(x) (0x25 + ((x) << 4))
37#define DATA_TWAKEUP(x) (0x26 + ((x) << 4))
38#define PHY_CFG_I 0x60
39#define PHY_CFG_PLL_I 0x63
40#define PHY_CFG_PLL_II 0x64
41#define PHY_CFG_PLL_III 0x65
42#define PHY_CFG_PLL_IV 0x66
43#define PHY_CFG_PLL_V 0x67
44#define DPI_COLOR_CODING 0x10 /* DPI color coding */
45#define DPI_CFG_POL 0x14 /* DPI polarity configuration */
46#define VID_HSA_TIME 0x48 /* Horizontal Sync Active time */
47#define VID_HBP_TIME 0x4C /* Horizontal Back Porch time */
48#define VID_HLINE_TIME 0x50 /* Line time */
49#define VID_VSA_LINES 0x54 /* Vertical Sync Active period */
50#define VID_VBP_LINES 0x58 /* Vertical Back Porch period */
51#define VID_VFP_LINES 0x5C /* Vertical Front Porch period */
52#define VID_VACTIVE_LINES 0x60 /* Vertical resolution */
53#define VID_PKT_SIZE 0x3C /* Video packet size */
54#define VID_MODE_CFG 0x38 /* Video mode configuration */
55#define PHY_TMR_CFG 0x9C /* Data lanes timing configuration */
56#define BTA_TO_CNT 0x8C /* Response timeout definition */
57#define PHY_TMR_LPCLK_CFG 0x98 /* clock lane timing configuration */
58#define CLK_DATA_TMR_CFG 0xCC
59#define LPCLK_CTRL 0x94 /* Low-power in clock lane */
60#define PHY_TXREQUESTCLKHS BIT(0)
61#define MODE_CFG 0x34 /* Video or Command mode selection */
62#define PHY_STATUS 0xB0 /* D-PHY PPI status interface */
63
64#define PHY_STOP_WAIT_TIME 0x30
65
66/*
67 * regs relevant enum
68 */
69enum dpi_color_coding {
70 DSI_24BITS_1 = 5,
71};
72
73enum dsi_video_mode_type {
74 DSI_NON_BURST_SYNC_PULSES = 0,
75 DSI_NON_BURST_SYNC_EVENTS,
76 DSI_BURST_SYNC_PULSES_1,
77 DSI_BURST_SYNC_PULSES_2
78};
79
80enum dsi_work_mode {
81 DSI_VIDEO_MODE = 0,
82 DSI_COMMAND_MODE
83};
84
85/*
86 * Register Write/Read Helper functions
87 */
88static inline void dw_update_bits(void __iomem *addr, u32 bit_start,
89 u32 mask, u32 val)
90{
91 u32 tmp, orig;
92
93 orig = readl(addr);
94 tmp = orig & ~(mask << bit_start);
95 tmp |= (val & mask) << bit_start;
96 writel(tmp, addr);
97}
98
99#endif /* __DW_DRM_DSI_H__ */
100

source code of linux/drivers/gpu/drm/hisilicon/kirin/dw_dsi_reg.h