drivers/pinctrl/pinctrl-pef2256.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * PEF2256 also known as FALC56 driver
   4  *
   5  * Copyright 2023 CS GROUP France
   6  *
   7  * Author: Herve Codina <herve.codina@bootlin.com>
   8  */
   9
  10 #include <linux/bitfield.h>
  11 #include <linux/framer/pef2256.h>
  12 #include <linux/module.h>
  13 #include <linux/of.h>
  14 #include <linux/pinctrl/pinctrl.h>
  15 #include <linux/pinctrl/pinconf-generic.h>
  16 #include <linux/pinctrl/pinmux.h>
  17 #include <linux/platform_device.h>
  18 #include <linux/regmap.h>
  19 #include <linux/slab.h>
  20
  21 /* Port Configuration 1..4 */
  22 #define PEF2256_PC1               0x80
  23 #define PEF2256_PC2               0x81
  24 #define PEF2256_PC3               0x82
  25 #define PEF2256_PC4               0x83
  26 #define PEF2256_12_PC_RPC_MASK    GENMASK(6, 4)
  27 #define PEF2256_12_PC_RPC_SYPR    FIELD_PREP_CONST(PEF2256_12_PC_RPC_MASK, 0x0)
  28 #define PEF2256_12_PC_RPC_RFM     FIELD_PREP_CONST(PEF2256_12_PC_RPC_MASK, 0x1)
  29 #define PEF2256_12_PC_RPC_RFMB    FIELD_PREP_CONST(PEF2256_12_PC_RPC_MASK, 0x2)
  30 #define PEF2256_12_PC_RPC_RSIGM   FIELD_PREP_CONST(PEF2256_12_PC_RPC_MASK, 0x3)
  31 #define PEF2256_12_PC_RPC_RSIG    FIELD_PREP_CONST(PEF2256_12_PC_RPC_MASK, 0x4)
  32 #define PEF2256_12_PC_RPC_DLR     FIELD_PREP_CONST(PEF2256_12_PC_RPC_MASK, 0x5)
  33 #define PEF2256_12_PC_RPC_FREEZE  FIELD_PREP_CONST(PEF2256_12_PC_RPC_MASK, 0x6)
  34 #define PEF2256_12_PC_RPC_RFSP    FIELD_PREP_CONST(PEF2256_12_PC_RPC_MASK, 0x7)
  35 #define PEF2256_12_PC_XPC_MASK    GENMASK(4, 0)
  36 #define PEF2256_12_PC_XPC_SYPX    FIELD_PREP_CONST(PEF2256_12_PC_XPC_MASK, 0x0)
  37 #define PEF2256_12_PC_XPC_XFMS    FIELD_PREP_CONST(PEF2256_12_PC_XPC_MASK, 0x1)
  38 #define PEF2256_12_PC_XPC_XSIG    FIELD_PREP_CONST(PEF2256_12_PC_XPC_MASK, 0x2)
  39 #define PEF2256_12_PC_XPC_TCLK    FIELD_PREP_CONST(PEF2256_12_PC_XPC_MASK, 0x3)
  40 #define PEF2256_12_PC_XPC_XMFB    FIELD_PREP_CONST(PEF2256_12_PC_XPC_MASK, 0x4)
  41 #define PEF2256_12_PC_XPC_XSIGM   FIELD_PREP_CONST(PEF2256_12_PC_XPC_MASK, 0x5)
  42 #define PEF2256_12_PC_XPC_DLX     FIELD_PREP_CONST(PEF2256_12_PC_XPC_MASK, 0x6)
  43 #define PEF2256_12_PC_XPC_XCLK    FIELD_PREP_CONST(PEF2256_12_PC_XPC_MASK, 0x7)
  44 #define PEF2256_12_PC_XPC_XLT     FIELD_PREP_CONST(PEF2256_12_PC_XPC_MASK, 0x8)
  45 #define PEF2256_2X_PC_RPC_MASK    GENMASK(7, 4)
  46 #define PEF2256_2X_PC_RPC_SYPR    FIELD_PREP_CONST(PEF2256_2X_PC_RPC_MASK, 0x0)
  47 #define PEF2256_2X_PC_RPC_RFM     FIELD_PREP_CONST(PEF2256_2X_PC_RPC_MASK, 0x1)
  48 #define PEF2256_2X_PC_RPC_RFMB    FIELD_PREP_CONST(PEF2256_2X_PC_RPC_MASK, 0x2)
  49 #define PEF2256_2X_PC_RPC_RSIGM   FIELD_PREP_CONST(PEF2256_2X_PC_RPC_MASK, 0x3)
  50 #define PEF2256_2X_PC_RPC_RSIG    FIELD_PREP_CONST(PEF2256_2X_PC_RPC_MASK, 0x4)
  51 #define PEF2256_2X_PC_RPC_DLR     FIELD_PREP_CONST(PEF2256_2X_PC_RPC_MASK, 0x5)
  52 #define PEF2256_2X_PC_RPC_FREEZE  FIELD_PREP_CONST(PEF2256_2X_PC_RPC_MASK, 0x6)
  53 #define PEF2256_2X_PC_RPC_RFSP    FIELD_PREP_CONST(PEF2256_2X_PC_RPC_MASK, 0x7)
  54 #define PEF2256_2X_PC_RPC_GPI     FIELD_PREP_CONST(PEF2256_2X_PC_RPC_MASK, 0x9)
  55 #define PEF2256_2X_PC_RPC_GPOH    FIELD_PREP_CONST(PEF2256_2X_PC_RPC_MASK, 0xa)
  56 #define PEF2256_2X_PC_RPC_GPOL    FIELD_PREP_CONST(PEF2256_2X_PC_RPC_MASK, 0xb)
  57 #define PEF2256_2X_PC_RPC_LOS     FIELD_PREP_CONST(PEF2256_2X_PC_RPC_MASK, 0xc)
  58 #define PEF2256_2X_PC_XPC_MASK    GENMASK(3, 0)
  59 #define PEF2256_2X_PC_XPC_SYPX    FIELD_PREP_CONST(PEF2256_2X_PC_XPC_MASK, 0x0)
  60 #define PEF2256_2X_PC_XPC_XFMS    FIELD_PREP_CONST(PEF2256_2X_PC_XPC_MASK, 0x1)
  61 #define PEF2256_2X_PC_XPC_XSIG    FIELD_PREP_CONST(PEF2256_2X_PC_XPC_MASK, 0x2)
  62 #define PEF2256_2X_PC_XPC_TCLK    FIELD_PREP_CONST(PEF2256_2X_PC_XPC_MASK, 0x3)
  63 #define PEF2256_2X_PC_XPC_XMFB    FIELD_PREP_CONST(PEF2256_2X_PC_XPC_MASK, 0x4)
  64 #define PEF2256_2X_PC_XPC_XSIGM   FIELD_PREP_CONST(PEF2256_2X_PC_XPC_MASK, 0x5)
  65 #define PEF2256_2X_PC_XPC_DLX     FIELD_PREP_CONST(PEF2256_2X_PC_XPC_MASK, 0x6)
  66 #define PEF2256_2X_PC_XPC_XCLK    FIELD_PREP_CONST(PEF2256_2X_PC_XPC_MASK, 0x7)
  67 #define PEF2256_2X_PC_XPC_XLT     FIELD_PREP_CONST(PEF2256_2X_PC_XPC_MASK, 0x8)
  68 #define PEF2256_2X_PC_XPC_GPI     FIELD_PREP_CONST(PEF2256_2X_PC_XPC_MASK, 0x9)
  69 #define PEF2256_2X_PC_XPC_GPOH    FIELD_PREP_CONST(PEF2256_2X_PC_XPC_MASK, 0xa)
  70 #define PEF2256_2X_PC_XPC_GPOL    FIELD_PREP_CONST(PEF2256_2X_PC_XPC_MASK, 0xb)
  71
  72 struct pef2256_pinreg_desc {
  73         int offset;
  74         u8 mask;
  75 };
  76
  77 struct pef2256_function_desc {
  78         const char *name;
  79         const char * const*groups;
  80         unsigned int ngroups;
  81         u8 func_val;
  82 };
  83
  84 struct pef2256_pinctrl {
  85         struct device *dev;
  86         struct regmap *regmap;
  87         enum pef2256_version version;
  88         struct pinctrl_desc pctrl_desc;
  89         const struct pef2256_function_desc *functions;
  90         unsigned int nfunctions;
  91 };
  92
  93 static int pef2256_get_groups_count(struct pinctrl_dev *pctldev)
  94 {
  95         struct pef2256_pinctrl *pef2256 = pinctrl_dev_get_drvdata(pctldev);
  96
  97         /* We map 1 group <-> 1 pin */
  98         return pef2256->pctrl_desc.npins;
  99 }
 100
 101 static const char *pef2256_get_group_name(struct pinctrl_dev *pctldev,
 102                                           unsigned int selector)
 103 {
 104         struct pef2256_pinctrl *pef2256 = pinctrl_dev_get_drvdata(pctldev);
 105
 106         /* We map 1 group <-> 1 pin */
 107         return pef2256->pctrl_desc.pins[selector].name;
 108 }
 109
 110 static int pef2256_get_group_pins(struct pinctrl_dev *pctldev, unsigned int selector,
 111                                   const unsigned int **pins,
 112                                   unsigned int *num_pins)
 113 {
 114         struct pef2256_pinctrl *pef2256 = pinctrl_dev_get_drvdata(pctldev);
 115
 116         /* We map 1 group <-> 1 pin */
 117         *pins = &pef2256->pctrl_desc.pins[selector].number;
 118         *num_pins = 1;
 119
 120         return 0;
 121 }
 122
 123 static const struct pinctrl_ops pef2256_pctlops = {
 124         .get_groups_count       = pef2256_get_groups_count,
 125         .get_group_name         = pef2256_get_group_name,
 126         .get_group_pins         = pef2256_get_group_pins,
 127         .dt_node_to_map         = pinconf_generic_dt_node_to_map_pin,
 128         .dt_free_map            = pinconf_generic_dt_free_map,
 129 };
 130
 131 static int pef2256_get_functions_count(struct pinctrl_dev *pctldev)
 132 {
 133         struct pef2256_pinctrl *pef2256 = pinctrl_dev_get_drvdata(pctldev);
 134
 135         return pef2256->nfunctions;
 136 }
 137
 138 static const char *pef2256_get_function_name(struct pinctrl_dev *pctldev,
 139                                              unsigned int selector)
 140 {
 141         struct pef2256_pinctrl *pef2256 = pinctrl_dev_get_drvdata(pctldev);
 142
 143         return pef2256->functions[selector].name;
 144 }
 145
 146 static int pef2256_get_function_groups(struct pinctrl_dev *pctldev, unsigned int selector,
 147                                        const char * const **groups,
 148                                        unsigned * const num_groups)
 149 {
 150         struct pef2256_pinctrl *pef2256 = pinctrl_dev_get_drvdata(pctldev);
 151
 152         *groups = pef2256->functions[selector].groups;
 153         *num_groups = pef2256->functions[selector].ngroups;
 154         return 0;
 155 }
 156
 157 static int pef2256_set_mux(struct pinctrl_dev *pctldev, unsigned int func_selector,
 158                            unsigned int group_selector)
 159 {
 160         struct pef2256_pinctrl *pef2256 = pinctrl_dev_get_drvdata(pctldev);
 161         const struct pef2256_pinreg_desc *pinreg_desc;
 162         u8 func_val;
 163
 164         /* We map 1 group <-> 1 pin */
 165         pinreg_desc = pef2256->pctrl_desc.pins[group_selector].drv_data;
 166         func_val = pef2256->functions[func_selector].func_val;
 167
 168         return regmap_update_bits(pef2256->regmap, pinreg_desc->offset,
 169                                   pinreg_desc->mask, func_val);
 170 }
 171
 172 static const struct pinmux_ops pef2256_pmxops = {
 173         .get_functions_count    = pef2256_get_functions_count,
 174         .get_function_name      = pef2256_get_function_name,
 175         .get_function_groups    = pef2256_get_function_groups,
 176         .set_mux                = pef2256_set_mux,
 177 };
 178
 179 #define PEF2256_PINCTRL_PIN(_number, _name, _offset, _mask) { \
 180         .number = _number, \
 181         .name = _name, \
 182         .drv_data = &(struct pef2256_pinreg_desc) { \
 183                 .offset = _offset, \
 184                 .mask = _mask, \
 185         }, \
 186 }
 187
 188 static const struct pinctrl_pin_desc pef2256_v12_pins[] = {
 189         PEF2256_PINCTRL_PIN(0, "RPA", PEF2256_PC1, PEF2256_12_PC_RPC_MASK),
 190         PEF2256_PINCTRL_PIN(1, "RPB", PEF2256_PC2, PEF2256_12_PC_RPC_MASK),
 191         PEF2256_PINCTRL_PIN(2, "RPC", PEF2256_PC3, PEF2256_12_PC_RPC_MASK),
 192         PEF2256_PINCTRL_PIN(3, "RPD", PEF2256_PC4, PEF2256_12_PC_RPC_MASK),
 193         PEF2256_PINCTRL_PIN(4, "XPA", PEF2256_PC1, PEF2256_12_PC_XPC_MASK),
 194         PEF2256_PINCTRL_PIN(5, "XPB", PEF2256_PC2, PEF2256_12_PC_XPC_MASK),
 195         PEF2256_PINCTRL_PIN(6, "XPC", PEF2256_PC3, PEF2256_12_PC_XPC_MASK),
 196         PEF2256_PINCTRL_PIN(7, "XPD", PEF2256_PC4, PEF2256_12_PC_XPC_MASK),
 197 };
 198
 199 static const struct pinctrl_pin_desc pef2256_v2x_pins[] = {
 200         PEF2256_PINCTRL_PIN(0, "RPA", PEF2256_PC1, PEF2256_2X_PC_RPC_MASK),
 201         PEF2256_PINCTRL_PIN(1, "RPB", PEF2256_PC2, PEF2256_2X_PC_RPC_MASK),
 202         PEF2256_PINCTRL_PIN(2, "RPC", PEF2256_PC3, PEF2256_2X_PC_RPC_MASK),
 203         PEF2256_PINCTRL_PIN(3, "RPD", PEF2256_PC4, PEF2256_2X_PC_RPC_MASK),
 204         PEF2256_PINCTRL_PIN(4, "XPA", PEF2256_PC1, PEF2256_2X_PC_XPC_MASK),
 205         PEF2256_PINCTRL_PIN(5, "XPB", PEF2256_PC2, PEF2256_2X_PC_XPC_MASK),
 206         PEF2256_PINCTRL_PIN(6, "XPC", PEF2256_PC3, PEF2256_2X_PC_XPC_MASK),
 207         PEF2256_PINCTRL_PIN(7, "XPD", PEF2256_PC4, PEF2256_2X_PC_XPC_MASK),
 208 };
 209
 210 static const char *const pef2256_rp_groups[] = { "RPA", "RPB", "RPC", "RPD" };
 211 static const char *const pef2256_xp_groups[] = { "XPA", "XPB", "XPC", "XPD" };
 212 static const char *const pef2256_all_groups[] = { "RPA", "RPB", "RPC", "RPD",
 213                                                   "XPA", "XPB", "XPC", "XPD" };
 214
 215 #define PEF2256_FUNCTION(_name, _func_val, _groups) { \
 216         .name = _name, \
 217         .groups = _groups, \
 218         .ngroups = ARRAY_SIZE(_groups), \
 219         .func_val = _func_val, \
 220 }
 221
 222 static const struct pef2256_function_desc pef2256_v2x_functions[] = {
 223         PEF2256_FUNCTION("SYPR",   PEF2256_2X_PC_RPC_SYPR,   pef2256_rp_groups),
 224         PEF2256_FUNCTION("RFM",    PEF2256_2X_PC_RPC_RFM,    pef2256_rp_groups),
 225         PEF2256_FUNCTION("RFMB",   PEF2256_2X_PC_RPC_RFMB,   pef2256_rp_groups),
 226         PEF2256_FUNCTION("RSIGM",  PEF2256_2X_PC_RPC_RSIGM,  pef2256_rp_groups),
 227         PEF2256_FUNCTION("RSIG",   PEF2256_2X_PC_RPC_RSIG,   pef2256_rp_groups),
 228         PEF2256_FUNCTION("DLR",    PEF2256_2X_PC_RPC_DLR,    pef2256_rp_groups),
 229         PEF2256_FUNCTION("FREEZE", PEF2256_2X_PC_RPC_FREEZE, pef2256_rp_groups),
 230         PEF2256_FUNCTION("RFSP",   PEF2256_2X_PC_RPC_RFSP,   pef2256_rp_groups),
 231         PEF2256_FUNCTION("LOS",    PEF2256_2X_PC_RPC_LOS,    pef2256_rp_groups),
 232
 233         PEF2256_FUNCTION("SYPX",  PEF2256_2X_PC_XPC_SYPX,  pef2256_xp_groups),
 234         PEF2256_FUNCTION("XFMS",  PEF2256_2X_PC_XPC_XFMS,  pef2256_xp_groups),
 235         PEF2256_FUNCTION("XSIG",  PEF2256_2X_PC_XPC_XSIG,  pef2256_xp_groups),
 236         PEF2256_FUNCTION("TCLK",  PEF2256_2X_PC_XPC_TCLK,  pef2256_xp_groups),
 237         PEF2256_FUNCTION("XMFB",  PEF2256_2X_PC_XPC_XMFB,  pef2256_xp_groups),
 238         PEF2256_FUNCTION("XSIGM", PEF2256_2X_PC_XPC_XSIGM, pef2256_xp_groups),
 239         PEF2256_FUNCTION("DLX",   PEF2256_2X_PC_XPC_DLX,   pef2256_xp_groups),
 240         PEF2256_FUNCTION("XCLK",  PEF2256_2X_PC_XPC_XCLK,  pef2256_xp_groups),
 241         PEF2256_FUNCTION("XLT",   PEF2256_2X_PC_XPC_XLT,   pef2256_xp_groups),
 242
 243         PEF2256_FUNCTION("GPI",  PEF2256_2X_PC_RPC_GPI | PEF2256_2X_PC_XPC_GPI,
 244                          pef2256_all_groups),
 245         PEF2256_FUNCTION("GPOH", PEF2256_2X_PC_RPC_GPOH | PEF2256_2X_PC_XPC_GPOH,
 246                          pef2256_all_groups),
 247         PEF2256_FUNCTION("GPOL", PEF2256_2X_PC_RPC_GPOL | PEF2256_2X_PC_XPC_GPOL,
 248                          pef2256_all_groups),
 249 };
 250
 251 static const struct pef2256_function_desc pef2256_v12_functions[] = {
 252         PEF2256_FUNCTION("SYPR",   PEF2256_12_PC_RPC_SYPR,   pef2256_rp_groups),
 253         PEF2256_FUNCTION("RFM",    PEF2256_12_PC_RPC_RFM,    pef2256_rp_groups),
 254         PEF2256_FUNCTION("RFMB",   PEF2256_12_PC_RPC_RFMB,   pef2256_rp_groups),
 255         PEF2256_FUNCTION("RSIGM",  PEF2256_12_PC_RPC_RSIGM,  pef2256_rp_groups),
 256         PEF2256_FUNCTION("RSIG",   PEF2256_12_PC_RPC_RSIG,   pef2256_rp_groups),
 257         PEF2256_FUNCTION("DLR",    PEF2256_12_PC_RPC_DLR,    pef2256_rp_groups),
 258         PEF2256_FUNCTION("FREEZE", PEF2256_12_PC_RPC_FREEZE, pef2256_rp_groups),
 259         PEF2256_FUNCTION("RFSP",   PEF2256_12_PC_RPC_RFSP,   pef2256_rp_groups),
 260
 261         PEF2256_FUNCTION("SYPX",  PEF2256_12_PC_XPC_SYPX,  pef2256_xp_groups),
 262         PEF2256_FUNCTION("XFMS",  PEF2256_12_PC_XPC_XFMS,  pef2256_xp_groups),
 263         PEF2256_FUNCTION("XSIG",  PEF2256_12_PC_XPC_XSIG,  pef2256_xp_groups),
 264         PEF2256_FUNCTION("TCLK",  PEF2256_12_PC_XPC_TCLK,  pef2256_xp_groups),
 265         PEF2256_FUNCTION("XMFB",  PEF2256_12_PC_XPC_XMFB,  pef2256_xp_groups),
 266         PEF2256_FUNCTION("XSIGM", PEF2256_12_PC_XPC_XSIGM, pef2256_xp_groups),
 267         PEF2256_FUNCTION("DLX",   PEF2256_12_PC_XPC_DLX,   pef2256_xp_groups),
 268         PEF2256_FUNCTION("XCLK",  PEF2256_12_PC_XPC_XCLK,  pef2256_xp_groups),
 269         PEF2256_FUNCTION("XLT",   PEF2256_12_PC_XPC_XLT,   pef2256_xp_groups),
 270 };
 271
 272 static int pef2256_register_pinctrl(struct pef2256_pinctrl *pef2256)
 273 {
 274         struct pinctrl_dev      *pctrl;
 275
 276         pef2256->pctrl_desc.name    = dev_name(pef2256->dev);
 277         pef2256->pctrl_desc.owner   = THIS_MODULE;
 278         pef2256->pctrl_desc.pctlops = &pef2256_pctlops;
 279         pef2256->pctrl_desc.pmxops  = &pef2256_pmxops;
 280         if (pef2256->version == PEF2256_VERSION_1_2) {
 281                 pef2256->pctrl_desc.pins  = pef2256_v12_pins;
 282                 pef2256->pctrl_desc.npins = ARRAY_SIZE(pef2256_v12_pins);
 283                 pef2256->functions  = pef2256_v12_functions;
 284                 pef2256->nfunctions = ARRAY_SIZE(pef2256_v12_functions);
 285         } else {
 286                 pef2256->pctrl_desc.pins  = pef2256_v2x_pins;
 287                 pef2256->pctrl_desc.npins = ARRAY_SIZE(pef2256_v2x_pins);
 288                 pef2256->functions  = pef2256_v2x_functions;
 289                 pef2256->nfunctions = ARRAY_SIZE(pef2256_v2x_functions);
 290         }
 291
 292         pctrl = devm_pinctrl_register(pef2256->dev, &pef2256->pctrl_desc, pef2256);
 293         if (IS_ERR(pctrl))
 294                 return dev_err_probe(pef2256->dev, PTR_ERR(pctrl),
 295                                      "pinctrl driver registration failed\n");
 296
 297         return 0;
 298 }
 299
 300 static void pef2256_reset_pinmux(struct pef2256_pinctrl *pef2256)
 301 {
 302         u8 val;
 303         /*
 304          * Reset values cannot be used.
 305          * They define the SYPR/SYPX pin mux for all the RPx and XPx pins and
 306          * Only one pin can be muxed to SYPR and one pin can be muxed to SYPX.
 307          * Choose here an other reset value.
 308          */
 309         if (pef2256->version == PEF2256_VERSION_1_2)
 310                 val = PEF2256_12_PC_XPC_XCLK | PEF2256_12_PC_RPC_RFSP;
 311         else
 312                 val = PEF2256_2X_PC_XPC_GPI | PEF2256_2X_PC_RPC_GPI;
 313
 314         regmap_write(pef2256->regmap, PEF2256_PC1, val);
 315         regmap_write(pef2256->regmap, PEF2256_PC2, val);
 316         regmap_write(pef2256->regmap, PEF2256_PC3, val);
 317         regmap_write(pef2256->regmap, PEF2256_PC4, val);
 318 }
 319
 320 static int pef2256_pinctrl_probe(struct platform_device *pdev)
 321 {
 322         struct pef2256_pinctrl *pef2256_pinctrl;
 323         struct pef2256 *pef2256;
 324         int ret;
 325
 326         pef2256_pinctrl = devm_kzalloc(&pdev->dev, sizeof(*pef2256_pinctrl), GFP_KERNEL);
 327         if (!pef2256_pinctrl)
 328                 return -ENOMEM;
 329
 330         device_set_node(&pdev->dev, dev_fwnode(pdev->dev.parent));
 331
 332         pef2256 = dev_get_drvdata(pdev->dev.parent);
 333
 334         pef2256_pinctrl->dev = &pdev->dev;
 335         pef2256_pinctrl->regmap = pef2256_get_regmap(pef2256);
 336         pef2256_pinctrl->version = pef2256_get_version(pef2256);
 337
 338         platform_set_drvdata(pdev, pef2256_pinctrl);
 339
 340         pef2256_reset_pinmux(pef2256_pinctrl);
 341         ret = pef2256_register_pinctrl(pef2256_pinctrl);
 342         if (ret)
 343                 return ret;
 344
 345         return 0;
 346 }
 347
 348 static struct platform_driver pef2256_pinctrl_driver = {
 349         .driver = {
 350                 .name = "lantiq-pef2256-pinctrl",
 351         },
 352         .probe = pef2256_pinctrl_probe,
 353 };
 354 module_platform_driver(pef2256_pinctrl_driver);
 355
 356 MODULE_AUTHOR("Herve Codina <herve.codina@bootlin.com>");
 357 MODULE_DESCRIPTION("PEF2256 pin controller driver");
 358 MODULE_LICENSE("GPL");