1/* SPDX-License-Identifier: GPL-2.0+ */
2/*
3 * Copyright (C) 2018 Jernej Skrabec <jernej.skrabec@siol.net>
4 */
5
6#ifndef _SUN8I_DW_HDMI_H_
7#define _SUN8I_DW_HDMI_H_
8
9#include <drm/bridge/dw_hdmi.h>
10#include <drm/drm_encoder.h>
11#include <linux/clk.h>
12#include <linux/regmap.h>
13#include <linux/regulator/consumer.h>
14#include <linux/reset.h>
15
16#define SUN8I_HDMI_PHY_DBG_CTRL_REG	0x0000
17#define SUN8I_HDMI_PHY_DBG_CTRL_PX_LOCK		BIT(0)
18#define SUN8I_HDMI_PHY_DBG_CTRL_POL_MASK	GENMASK(15, 8)
19#define SUN8I_HDMI_PHY_DBG_CTRL_POL_NHSYNC	BIT(8)
20#define SUN8I_HDMI_PHY_DBG_CTRL_POL_NVSYNC	BIT(9)
21#define SUN8I_HDMI_PHY_DBG_CTRL_ADDR_MASK	GENMASK(23, 16)
22#define SUN8I_HDMI_PHY_DBG_CTRL_ADDR(addr)	(addr << 16)
23
24#define SUN8I_HDMI_PHY_REXT_CTRL_REG	0x0004
25#define SUN8I_HDMI_PHY_REXT_CTRL_REXT_EN	BIT(31)
26
27#define SUN8I_HDMI_PHY_READ_EN_REG	0x0010
28#define SUN8I_HDMI_PHY_READ_EN_MAGIC		0x54524545
29
30#define SUN8I_HDMI_PHY_UNSCRAMBLE_REG	0x0014
31#define SUN8I_HDMI_PHY_UNSCRAMBLE_MAGIC		0x42494E47
32
33#define SUN8I_HDMI_PHY_ANA_CFG1_REG	0x0020
34#define SUN8I_HDMI_PHY_ANA_CFG1_REG_SWI		BIT(31)
35#define SUN8I_HDMI_PHY_ANA_CFG1_REG_PWEND	BIT(30)
36#define SUN8I_HDMI_PHY_ANA_CFG1_REG_PWENC	BIT(29)
37#define SUN8I_HDMI_PHY_ANA_CFG1_REG_CALSW	BIT(28)
38#define SUN8I_HDMI_PHY_ANA_CFG1_REG_SVRCAL(x)	((x) << 26)
39#define SUN8I_HDMI_PHY_ANA_CFG1_REG_SVBH(x)	((x) << 24)
40#define SUN8I_HDMI_PHY_ANA_CFG1_AMP_OPT		BIT(23)
41#define SUN8I_HDMI_PHY_ANA_CFG1_EMP_OPT		BIT(22)
42#define SUN8I_HDMI_PHY_ANA_CFG1_AMPCK_OPT	BIT(21)
43#define SUN8I_HDMI_PHY_ANA_CFG1_EMPCK_OPT	BIT(20)
44#define SUN8I_HDMI_PHY_ANA_CFG1_ENRCAL		BIT(19)
45#define SUN8I_HDMI_PHY_ANA_CFG1_ENCALOG		BIT(18)
46#define SUN8I_HDMI_PHY_ANA_CFG1_REG_SCKTMDS	BIT(17)
47#define SUN8I_HDMI_PHY_ANA_CFG1_TMDSCLK_EN	BIT(16)
48#define SUN8I_HDMI_PHY_ANA_CFG1_TXEN_MASK	GENMASK(15, 12)
49#define SUN8I_HDMI_PHY_ANA_CFG1_TXEN_ALL	(0xf << 12)
50#define SUN8I_HDMI_PHY_ANA_CFG1_BIASEN_TMDSCLK	BIT(11)
51#define SUN8I_HDMI_PHY_ANA_CFG1_BIASEN_TMDS2	BIT(10)
52#define SUN8I_HDMI_PHY_ANA_CFG1_BIASEN_TMDS1	BIT(9)
53#define SUN8I_HDMI_PHY_ANA_CFG1_BIASEN_TMDS0	BIT(8)
54#define SUN8I_HDMI_PHY_ANA_CFG1_ENP2S_TMDSCLK	BIT(7)
55#define SUN8I_HDMI_PHY_ANA_CFG1_ENP2S_TMDS2	BIT(6)
56#define SUN8I_HDMI_PHY_ANA_CFG1_ENP2S_TMDS1	BIT(5)
57#define SUN8I_HDMI_PHY_ANA_CFG1_ENP2S_TMDS0	BIT(4)
58#define SUN8I_HDMI_PHY_ANA_CFG1_CKEN		BIT(3)
59#define SUN8I_HDMI_PHY_ANA_CFG1_LDOEN		BIT(2)
60#define SUN8I_HDMI_PHY_ANA_CFG1_ENVBS		BIT(1)
61#define SUN8I_HDMI_PHY_ANA_CFG1_ENBI		BIT(0)
62
63#define SUN8I_HDMI_PHY_ANA_CFG2_REG	0x0024
64#define SUN8I_HDMI_PHY_ANA_CFG2_M_EN		BIT(31)
65#define SUN8I_HDMI_PHY_ANA_CFG2_PLLDBEN		BIT(30)
66#define SUN8I_HDMI_PHY_ANA_CFG2_SEN		BIT(29)
67#define SUN8I_HDMI_PHY_ANA_CFG2_REG_HPDPD	BIT(28)
68#define SUN8I_HDMI_PHY_ANA_CFG2_REG_HPDEN	BIT(27)
69#define SUN8I_HDMI_PHY_ANA_CFG2_REG_PLRCK	BIT(26)
70#define SUN8I_HDMI_PHY_ANA_CFG2_REG_PLR(x)	((x) << 23)
71#define SUN8I_HDMI_PHY_ANA_CFG2_REG_DENCK	BIT(22)
72#define SUN8I_HDMI_PHY_ANA_CFG2_REG_DEN		BIT(21)
73#define SUN8I_HDMI_PHY_ANA_CFG2_REG_CD(x)	((x) << 19)
74#define SUN8I_HDMI_PHY_ANA_CFG2_REG_CKSS(x)	((x) << 17)
75#define SUN8I_HDMI_PHY_ANA_CFG2_REG_BIGSWCK	BIT(16)
76#define SUN8I_HDMI_PHY_ANA_CFG2_REG_BIGSW	BIT(15)
77#define SUN8I_HDMI_PHY_ANA_CFG2_REG_CSMPS(x)	((x) << 13)
78#define SUN8I_HDMI_PHY_ANA_CFG2_REG_SLV(x)	((x) << 10)
79#define SUN8I_HDMI_PHY_ANA_CFG2_REG_BOOSTCK(x)	((x) << 8)
80#define SUN8I_HDMI_PHY_ANA_CFG2_REG_BOOST(x)	((x) << 6)
81#define SUN8I_HDMI_PHY_ANA_CFG2_REG_RESDI(x)	((x) << 0)
82
83#define SUN8I_HDMI_PHY_ANA_CFG3_REG	0x0028
84#define SUN8I_HDMI_PHY_ANA_CFG3_REG_SLOWCK(x)	((x) << 30)
85#define SUN8I_HDMI_PHY_ANA_CFG3_REG_SLOW(x)	((x) << 28)
86#define SUN8I_HDMI_PHY_ANA_CFG3_REG_WIRE(x)	((x) << 18)
87#define SUN8I_HDMI_PHY_ANA_CFG3_REG_AMPCK(x)	((x) << 14)
88#define SUN8I_HDMI_PHY_ANA_CFG3_REG_EMPCK(x)	((x) << 11)
89#define SUN8I_HDMI_PHY_ANA_CFG3_REG_AMP(x)	((x) << 7)
90#define SUN8I_HDMI_PHY_ANA_CFG3_REG_EMP(x)	((x) << 4)
91#define SUN8I_HDMI_PHY_ANA_CFG3_SDAPD		BIT(3)
92#define SUN8I_HDMI_PHY_ANA_CFG3_SDAEN		BIT(2)
93#define SUN8I_HDMI_PHY_ANA_CFG3_SCLPD		BIT(1)
94#define SUN8I_HDMI_PHY_ANA_CFG3_SCLEN		BIT(0)
95
96#define SUN8I_HDMI_PHY_PLL_CFG1_REG	0x002c
97#define SUN8I_HDMI_PHY_PLL_CFG1_REG_OD1		BIT(31)
98#define SUN8I_HDMI_PHY_PLL_CFG1_REG_OD		BIT(30)
99#define SUN8I_HDMI_PHY_PLL_CFG1_LDO2_EN		BIT(29)
100#define SUN8I_HDMI_PHY_PLL_CFG1_LDO1_EN		BIT(28)
101#define SUN8I_HDMI_PHY_PLL_CFG1_HV_IS_33	BIT(27)
102#define SUN8I_HDMI_PHY_PLL_CFG1_CKIN_SEL_MSK	BIT(26)
103#define SUN8I_HDMI_PHY_PLL_CFG1_CKIN_SEL_SHIFT	26
104#define SUN8I_HDMI_PHY_PLL_CFG1_PLLEN		BIT(25)
105#define SUN8I_HDMI_PHY_PLL_CFG1_LDO_VSET(x)	((x) << 22)
106#define SUN8I_HDMI_PHY_PLL_CFG1_UNKNOWN(x)	((x) << 20)
107#define SUN8I_HDMI_PHY_PLL_CFG1_PLLDBEN		BIT(19)
108#define SUN8I_HDMI_PHY_PLL_CFG1_CS		BIT(18)
109#define SUN8I_HDMI_PHY_PLL_CFG1_CP_S(x)		((x) << 13)
110#define SUN8I_HDMI_PHY_PLL_CFG1_CNT_INT(x)	((x) << 7)
111#define SUN8I_HDMI_PHY_PLL_CFG1_BWS		BIT(6)
112#define SUN8I_HDMI_PHY_PLL_CFG1_B_IN_MSK	GENMASK(5, 0)
113#define SUN8I_HDMI_PHY_PLL_CFG1_B_IN_SHIFT	0
114
115#define SUN8I_HDMI_PHY_PLL_CFG2_REG	0x0030
116#define SUN8I_HDMI_PHY_PLL_CFG2_SV_H		BIT(31)
117#define SUN8I_HDMI_PHY_PLL_CFG2_PDCLKSEL(x)	((x) << 29)
118#define SUN8I_HDMI_PHY_PLL_CFG2_CLKSTEP(x)	((x) << 27)
119#define SUN8I_HDMI_PHY_PLL_CFG2_PSET(x)		((x) << 24)
120#define SUN8I_HDMI_PHY_PLL_CFG2_PCLK_SEL	BIT(23)
121#define SUN8I_HDMI_PHY_PLL_CFG2_AUTOSYNC_DIS	BIT(22)
122#define SUN8I_HDMI_PHY_PLL_CFG2_VREG2_OUT_EN	BIT(21)
123#define SUN8I_HDMI_PHY_PLL_CFG2_VREG1_OUT_EN	BIT(20)
124#define SUN8I_HDMI_PHY_PLL_CFG2_VCOGAIN_EN	BIT(19)
125#define SUN8I_HDMI_PHY_PLL_CFG2_VCOGAIN(x)	((x) << 16)
126#define SUN8I_HDMI_PHY_PLL_CFG2_VCO_S(x)	((x) << 12)
127#define SUN8I_HDMI_PHY_PLL_CFG2_VCO_RST_IN	BIT(11)
128#define SUN8I_HDMI_PHY_PLL_CFG2_SINT_FRAC	BIT(10)
129#define SUN8I_HDMI_PHY_PLL_CFG2_SDIV2		BIT(9)
130#define SUN8I_HDMI_PHY_PLL_CFG2_S(x)		((x) << 6)
131#define SUN8I_HDMI_PHY_PLL_CFG2_S6P25_7P5	BIT(5)
132#define SUN8I_HDMI_PHY_PLL_CFG2_S5_7		BIT(4)
133#define SUN8I_HDMI_PHY_PLL_CFG2_PREDIV_MSK	GENMASK(3, 0)
134#define SUN8I_HDMI_PHY_PLL_CFG2_PREDIV_SHIFT	0
135#define SUN8I_HDMI_PHY_PLL_CFG2_PREDIV(x)	(((x) - 1) << 0)
136
137#define SUN8I_HDMI_PHY_PLL_CFG3_REG	0x0034
138#define SUN8I_HDMI_PHY_PLL_CFG3_SOUT_DIV2	BIT(0)
139
140#define SUN8I_HDMI_PHY_ANA_STS_REG	0x0038
141#define SUN8I_HDMI_PHY_ANA_STS_B_OUT_SHIFT	11
142#define SUN8I_HDMI_PHY_ANA_STS_B_OUT_MSK	GENMASK(16, 11)
143#define SUN8I_HDMI_PHY_ANA_STS_RCALEND2D	BIT(7)
144#define SUN8I_HDMI_PHY_ANA_STS_RCAL_MASK	GENMASK(5, 0)
145
146#define SUN8I_HDMI_PHY_CEC_REG		0x003c
147
148struct sun8i_hdmi_phy;
149
150struct sun8i_hdmi_phy_variant {
151	bool has_phy_clk;
152	bool has_second_pll;
153	const struct dw_hdmi_curr_ctrl *cur_ctr;
154	const struct dw_hdmi_mpll_config *mpll_cfg;
155	const struct dw_hdmi_phy_config *phy_cfg;
156	const struct dw_hdmi_phy_ops *phy_ops;
157	void (*phy_init)(struct sun8i_hdmi_phy *phy);
158};
159
160struct sun8i_hdmi_phy {
161	struct clk			*clk_bus;
162	struct clk			*clk_mod;
163	struct clk			*clk_phy;
164	struct clk			*clk_pll0;
165	struct clk			*clk_pll1;
166	struct device			*dev;
167	unsigned int			rcal;
168	struct regmap			*regs;
169	struct reset_control		*rst_phy;
170	const struct sun8i_hdmi_phy_variant *variant;
171};
172
173struct sun8i_dw_hdmi_quirks {
174	enum drm_mode_status (*mode_valid)(struct dw_hdmi *hdmi, void *data,
175					   const struct drm_display_info *info,
176					   const struct drm_display_mode *mode);
177	unsigned int use_drm_infoframe : 1;
178};
179
180struct sun8i_dw_hdmi {
181	struct clk			*clk_tmds;
182	struct device			*dev;
183	struct dw_hdmi			*hdmi;
184	struct drm_encoder		encoder;
185	struct sun8i_hdmi_phy		*phy;
186	struct dw_hdmi_plat_data	plat_data;
187	struct regulator		*regulator;
188	const struct sun8i_dw_hdmi_quirks *quirks;
189	struct reset_control		*rst_ctrl;
190};
191
192extern struct platform_driver sun8i_hdmi_phy_driver;
193
194static inline struct sun8i_dw_hdmi *
195encoder_to_sun8i_dw_hdmi(struct drm_encoder *encoder)
196{
197	return container_of(encoder, struct sun8i_dw_hdmi, encoder);
198}
199
200int sun8i_hdmi_phy_get(struct sun8i_dw_hdmi *hdmi, struct device_node *node);
201
202int sun8i_hdmi_phy_init(struct sun8i_hdmi_phy *phy);
203void sun8i_hdmi_phy_deinit(struct sun8i_hdmi_phy *phy);
204void sun8i_hdmi_phy_set_ops(struct sun8i_hdmi_phy *phy,
205			    struct dw_hdmi_plat_data *plat_data);
206
207int sun8i_phy_clk_create(struct sun8i_hdmi_phy *phy, struct device *dev,
208			 bool second_parent);
209
210#endif /* _SUN8I_DW_HDMI_H_ */
211