drivers/gpu/drm/sun4i/sun8i_dw_hdmi.h

   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/gpio/consumer.h>
  13 #include <linux/regmap.h>
  14 #include <linux/regulator/consumer.h>
  15 #include <linux/reset.h>
  16
  17 #define SUN8I_HDMI_PHY_DBG_CTRL_REG     0x0000
  18 #define SUN8I_HDMI_PHY_DBG_CTRL_PX_LOCK         BIT(0)
  19 #define SUN8I_HDMI_PHY_DBG_CTRL_POL_MASK        GENMASK(15, 8)
  20 #define SUN8I_HDMI_PHY_DBG_CTRL_POL_NHSYNC      BIT(8)
  21 #define SUN8I_HDMI_PHY_DBG_CTRL_POL_NVSYNC      BIT(9)
  22 #define SUN8I_HDMI_PHY_DBG_CTRL_ADDR_MASK       GENMASK(23, 16)
  23 #define SUN8I_HDMI_PHY_DBG_CTRL_ADDR(addr)      (addr << 16)
  24
  25 #define SUN8I_HDMI_PHY_REXT_CTRL_REG    0x0004
  26 #define SUN8I_HDMI_PHY_REXT_CTRL_REXT_EN        BIT(31)
  27
  28 #define SUN8I_HDMI_PHY_READ_EN_REG      0x0010
  29 #define SUN8I_HDMI_PHY_READ_EN_MAGIC            0x54524545
  30
  31 #define SUN8I_HDMI_PHY_UNSCRAMBLE_REG   0x0014
  32 #define SUN8I_HDMI_PHY_UNSCRAMBLE_MAGIC         0x42494E47
  33
  34 #define SUN8I_HDMI_PHY_ANA_CFG1_REG     0x0020
  35 #define SUN8I_HDMI_PHY_ANA_CFG1_REG_SWI         BIT(31)
  36 #define SUN8I_HDMI_PHY_ANA_CFG1_REG_PWEND       BIT(30)
  37 #define SUN8I_HDMI_PHY_ANA_CFG1_REG_PWENC       BIT(29)
  38 #define SUN8I_HDMI_PHY_ANA_CFG1_REG_CALSW       BIT(28)
  39 #define SUN8I_HDMI_PHY_ANA_CFG1_REG_SVRCAL(x)   ((x) << 26)
  40 #define SUN8I_HDMI_PHY_ANA_CFG1_REG_SVBH(x)     ((x) << 24)
  41 #define SUN8I_HDMI_PHY_ANA_CFG1_AMP_OPT         BIT(23)
  42 #define SUN8I_HDMI_PHY_ANA_CFG1_EMP_OPT         BIT(22)
  43 #define SUN8I_HDMI_PHY_ANA_CFG1_AMPCK_OPT       BIT(21)
  44 #define SUN8I_HDMI_PHY_ANA_CFG1_EMPCK_OPT       BIT(20)
  45 #define SUN8I_HDMI_PHY_ANA_CFG1_ENRCAL          BIT(19)
  46 #define SUN8I_HDMI_PHY_ANA_CFG1_ENCALOG         BIT(18)
  47 #define SUN8I_HDMI_PHY_ANA_CFG1_REG_SCKTMDS     BIT(17)
  48 #define SUN8I_HDMI_PHY_ANA_CFG1_TMDSCLK_EN      BIT(16)
  49 #define SUN8I_HDMI_PHY_ANA_CFG1_TXEN_MASK       GENMASK(15, 12)
  50 #define SUN8I_HDMI_PHY_ANA_CFG1_TXEN_ALL        (0xf << 12)
  51 #define SUN8I_HDMI_PHY_ANA_CFG1_BIASEN_TMDSCLK  BIT(11)
  52 #define SUN8I_HDMI_PHY_ANA_CFG1_BIASEN_TMDS2    BIT(10)
  53 #define SUN8I_HDMI_PHY_ANA_CFG1_BIASEN_TMDS1    BIT(9)
  54 #define SUN8I_HDMI_PHY_ANA_CFG1_BIASEN_TMDS0    BIT(8)
  55 #define SUN8I_HDMI_PHY_ANA_CFG1_ENP2S_TMDSCLK   BIT(7)
  56 #define SUN8I_HDMI_PHY_ANA_CFG1_ENP2S_TMDS2     BIT(6)
  57 #define SUN8I_HDMI_PHY_ANA_CFG1_ENP2S_TMDS1     BIT(5)
  58 #define SUN8I_HDMI_PHY_ANA_CFG1_ENP2S_TMDS0     BIT(4)
  59 #define SUN8I_HDMI_PHY_ANA_CFG1_CKEN            BIT(3)
  60 #define SUN8I_HDMI_PHY_ANA_CFG1_LDOEN           BIT(2)
  61 #define SUN8I_HDMI_PHY_ANA_CFG1_ENVBS           BIT(1)
  62 #define SUN8I_HDMI_PHY_ANA_CFG1_ENBI            BIT(0)
  63
  64 #define SUN8I_HDMI_PHY_ANA_CFG2_REG     0x0024
  65 #define SUN8I_HDMI_PHY_ANA_CFG2_M_EN            BIT(31)
  66 #define SUN8I_HDMI_PHY_ANA_CFG2_PLLDBEN         BIT(30)
  67 #define SUN8I_HDMI_PHY_ANA_CFG2_SEN             BIT(29)
  68 #define SUN8I_HDMI_PHY_ANA_CFG2_REG_HPDPD       BIT(28)
  69 #define SUN8I_HDMI_PHY_ANA_CFG2_REG_HPDEN       BIT(27)
  70 #define SUN8I_HDMI_PHY_ANA_CFG2_REG_PLRCK       BIT(26)
  71 #define SUN8I_HDMI_PHY_ANA_CFG2_REG_PLR(x)      ((x) << 23)
  72 #define SUN8I_HDMI_PHY_ANA_CFG2_REG_DENCK       BIT(22)
  73 #define SUN8I_HDMI_PHY_ANA_CFG2_REG_DEN         BIT(21)
  74 #define SUN8I_HDMI_PHY_ANA_CFG2_REG_CD(x)       ((x) << 19)
  75 #define SUN8I_HDMI_PHY_ANA_CFG2_REG_CKSS(x)     ((x) << 17)
  76 #define SUN8I_HDMI_PHY_ANA_CFG2_REG_BIGSWCK     BIT(16)
  77 #define SUN8I_HDMI_PHY_ANA_CFG2_REG_BIGSW       BIT(15)
  78 #define SUN8I_HDMI_PHY_ANA_CFG2_REG_CSMPS(x)    ((x) << 13)
  79 #define SUN8I_HDMI_PHY_ANA_CFG2_REG_SLV(x)      ((x) << 10)
  80 #define SUN8I_HDMI_PHY_ANA_CFG2_REG_BOOSTCK(x)  ((x) << 8)
  81 #define SUN8I_HDMI_PHY_ANA_CFG2_REG_BOOST(x)    ((x) << 6)
  82 #define SUN8I_HDMI_PHY_ANA_CFG2_REG_RESDI(x)    ((x) << 0)
  83
  84 #define SUN8I_HDMI_PHY_ANA_CFG3_REG     0x0028
  85 #define SUN8I_HDMI_PHY_ANA_CFG3_REG_SLOWCK(x)   ((x) << 30)
  86 #define SUN8I_HDMI_PHY_ANA_CFG3_REG_SLOW(x)     ((x) << 28)
  87 #define SUN8I_HDMI_PHY_ANA_CFG3_REG_WIRE(x)     ((x) << 18)
  88 #define SUN8I_HDMI_PHY_ANA_CFG3_REG_AMPCK(x)    ((x) << 14)
  89 #define SUN8I_HDMI_PHY_ANA_CFG3_REG_EMPCK(x)    ((x) << 11)
  90 #define SUN8I_HDMI_PHY_ANA_CFG3_REG_AMP(x)      ((x) << 7)
  91 #define SUN8I_HDMI_PHY_ANA_CFG3_REG_EMP(x)      ((x) << 4)
  92 #define SUN8I_HDMI_PHY_ANA_CFG3_SDAPD           BIT(3)
  93 #define SUN8I_HDMI_PHY_ANA_CFG3_SDAEN           BIT(2)
  94 #define SUN8I_HDMI_PHY_ANA_CFG3_SCLPD           BIT(1)
  95 #define SUN8I_HDMI_PHY_ANA_CFG3_SCLEN           BIT(0)
  96
  97 #define SUN8I_HDMI_PHY_PLL_CFG1_REG     0x002c
  98 #define SUN8I_HDMI_PHY_PLL_CFG1_REG_OD1         BIT(31)
  99 #define SUN8I_HDMI_PHY_PLL_CFG1_REG_OD          BIT(30)
 100 #define SUN8I_HDMI_PHY_PLL_CFG1_LDO2_EN         BIT(29)
 101 #define SUN8I_HDMI_PHY_PLL_CFG1_LDO1_EN         BIT(28)
 102 #define SUN8I_HDMI_PHY_PLL_CFG1_HV_IS_33        BIT(27)
 103 #define SUN8I_HDMI_PHY_PLL_CFG1_CKIN_SEL_MSK    BIT(26)
 104 #define SUN8I_HDMI_PHY_PLL_CFG1_CKIN_SEL_SHIFT  26
 105 #define SUN8I_HDMI_PHY_PLL_CFG1_PLLEN           BIT(25)
 106 #define SUN8I_HDMI_PHY_PLL_CFG1_LDO_VSET(x)     ((x) << 22)
 107 #define SUN8I_HDMI_PHY_PLL_CFG1_UNKNOWN(x)      ((x) << 20)
 108 #define SUN8I_HDMI_PHY_PLL_CFG1_PLLDBEN         BIT(19)
 109 #define SUN8I_HDMI_PHY_PLL_CFG1_CS              BIT(18)
 110 #define SUN8I_HDMI_PHY_PLL_CFG1_CP_S(x)         ((x) << 13)
 111 #define SUN8I_HDMI_PHY_PLL_CFG1_CNT_INT(x)      ((x) << 7)
 112 #define SUN8I_HDMI_PHY_PLL_CFG1_BWS             BIT(6)
 113 #define SUN8I_HDMI_PHY_PLL_CFG1_B_IN_MSK        GENMASK(5, 0)
 114 #define SUN8I_HDMI_PHY_PLL_CFG1_B_IN_SHIFT      0
 115
 116 #define SUN8I_HDMI_PHY_PLL_CFG2_REG     0x0030
 117 #define SUN8I_HDMI_PHY_PLL_CFG2_SV_H            BIT(31)
 118 #define SUN8I_HDMI_PHY_PLL_CFG2_PDCLKSEL(x)     ((x) << 29)
 119 #define SUN8I_HDMI_PHY_PLL_CFG2_CLKSTEP(x)      ((x) << 27)
 120 #define SUN8I_HDMI_PHY_PLL_CFG2_PSET(x)         ((x) << 24)
 121 #define SUN8I_HDMI_PHY_PLL_CFG2_PCLK_SEL        BIT(23)
 122 #define SUN8I_HDMI_PHY_PLL_CFG2_AUTOSYNC_DIS    BIT(22)
 123 #define SUN8I_HDMI_PHY_PLL_CFG2_VREG2_OUT_EN    BIT(21)
 124 #define SUN8I_HDMI_PHY_PLL_CFG2_VREG1_OUT_EN    BIT(20)
 125 #define SUN8I_HDMI_PHY_PLL_CFG2_VCOGAIN_EN      BIT(19)
 126 #define SUN8I_HDMI_PHY_PLL_CFG2_VCOGAIN(x)      ((x) << 16)
 127 #define SUN8I_HDMI_PHY_PLL_CFG2_VCO_S(x)        ((x) << 12)
 128 #define SUN8I_HDMI_PHY_PLL_CFG2_VCO_RST_IN      BIT(11)
 129 #define SUN8I_HDMI_PHY_PLL_CFG2_SINT_FRAC       BIT(10)
 130 #define SUN8I_HDMI_PHY_PLL_CFG2_SDIV2           BIT(9)
 131 #define SUN8I_HDMI_PHY_PLL_CFG2_S(x)            ((x) << 6)
 132 #define SUN8I_HDMI_PHY_PLL_CFG2_S6P25_7P5       BIT(5)
 133 #define SUN8I_HDMI_PHY_PLL_CFG2_S5_7            BIT(4)
 134 #define SUN8I_HDMI_PHY_PLL_CFG2_PREDIV_MSK      GENMASK(3, 0)
 135 #define SUN8I_HDMI_PHY_PLL_CFG2_PREDIV_SHIFT    0
 136 #define SUN8I_HDMI_PHY_PLL_CFG2_PREDIV(x)       (((x) - 1) << 0)
 137
 138 #define SUN8I_HDMI_PHY_PLL_CFG3_REG     0x0034
 139 #define SUN8I_HDMI_PHY_PLL_CFG3_SOUT_DIV2       BIT(0)
 140
 141 #define SUN8I_HDMI_PHY_ANA_STS_REG      0x0038
 142 #define SUN8I_HDMI_PHY_ANA_STS_B_OUT_SHIFT      11
 143 #define SUN8I_HDMI_PHY_ANA_STS_B_OUT_MSK        GENMASK(16, 11)
 144 #define SUN8I_HDMI_PHY_ANA_STS_RCALEND2D        BIT(7)
 145 #define SUN8I_HDMI_PHY_ANA_STS_RCAL_MASK        GENMASK(5, 0)
 146
 147 #define SUN8I_HDMI_PHY_CEC_REG          0x003c
 148
 149 struct sun8i_hdmi_phy;
 150
 151 struct sun8i_hdmi_phy_variant {
 152         bool has_phy_clk;
 153         bool has_second_pll;
 154         unsigned int is_custom_phy : 1;
 155         const struct dw_hdmi_curr_ctrl *cur_ctr;
 156         const struct dw_hdmi_mpll_config *mpll_cfg;
 157         const struct dw_hdmi_phy_config *phy_cfg;
 158         void (*phy_init)(struct sun8i_hdmi_phy *phy);
 159         void (*phy_disable)(struct dw_hdmi *hdmi,
 160                             struct sun8i_hdmi_phy *phy);
 161         int  (*phy_config)(struct dw_hdmi *hdmi,
 162                            struct sun8i_hdmi_phy *phy,
 163                            unsigned int clk_rate);
 164 };
 165
 166 struct sun8i_hdmi_phy {
 167         struct clk                      *clk_bus;
 168         struct clk                      *clk_mod;
 169         struct clk                      *clk_phy;
 170         struct clk                      *clk_pll0;
 171         struct clk                      *clk_pll1;
 172         unsigned int                    rcal;
 173         struct regmap                   *regs;
 174         struct reset_control            *rst_phy;
 175         struct sun8i_hdmi_phy_variant   *variant;
 176 };
 177
 178 struct sun8i_dw_hdmi_quirks {
 179         enum drm_mode_status (*mode_valid)(struct dw_hdmi *hdmi, void *data,
 180                                            const struct drm_display_info *info,
 181                                            const struct drm_display_mode *mode);
 182         unsigned int set_rate : 1;
 183         unsigned int use_drm_infoframe : 1;
 184 };
 185
 186 struct sun8i_dw_hdmi {
 187         struct clk                      *clk_tmds;
 188         struct device                   *dev;
 189         struct dw_hdmi                  *hdmi;
 190         struct drm_encoder              encoder;
 191         struct sun8i_hdmi_phy           *phy;
 192         struct dw_hdmi_plat_data        plat_data;
 193         struct regulator                *regulator;
 194         const struct sun8i_dw_hdmi_quirks *quirks;
 195         struct reset_control            *rst_ctrl;
 196         struct gpio_desc                *ddc_en;
 197 };
 198
 199 static inline struct sun8i_dw_hdmi *
 200 encoder_to_sun8i_dw_hdmi(struct drm_encoder *encoder)
 201 {
 202         return container_of(encoder, struct sun8i_dw_hdmi, encoder);
 203 }
 204
 205 int sun8i_hdmi_phy_probe(struct sun8i_dw_hdmi *hdmi, struct device_node *node);
 206 void sun8i_hdmi_phy_remove(struct sun8i_dw_hdmi *hdmi);
 207
 208 void sun8i_hdmi_phy_init(struct sun8i_hdmi_phy *phy);
 209 void sun8i_hdmi_phy_set_ops(struct sun8i_hdmi_phy *phy,
 210                             struct dw_hdmi_plat_data *plat_data);
 211
 212 int sun8i_phy_clk_create(struct sun8i_hdmi_phy *phy, struct device *dev,
 213                          bool second_parent);
 214
 215 #endif /* _SUN8I_DW_HDMI_H_ */