drivers/pinctrl/cirrus/pinctrl-cs47l35.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Pinctrl for Cirrus Logic CS47L35
   4  *
   5  * Copyright (C) 2016-2017 Cirrus Logic
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by the
   9  * Free Software Foundation; version 2.
  10  */
  11
  12 #include <linux/err.h>
  13 #include <linux/mfd/madera/core.h>
  14
  15 #include "pinctrl-madera.h"
  16
  17 /*
  18  * The alt func groups are the most commonly used functions we place these at
  19  * the lower function indexes for convenience, and the less commonly used gpio
  20  * functions at higher indexes.
  21  *
  22  * To stay consistent with the datasheet the function names are the same as
  23  * the group names for that function's pins
  24  *
  25  * Note - all 1 less than in datasheet because these are zero-indexed
  26  */
  27 static const unsigned int cs47l35_aif3_pins[] = { 0, 1, 2, 3 };
  28 static const unsigned int cs47l35_spk_pins[] = { 4, 5 };
  29 static const unsigned int cs47l35_aif1_pins[] = { 7, 8, 9, 10 };
  30 static const unsigned int cs47l35_aif2_pins[] = { 11, 12, 13, 14 };
  31 static const unsigned int cs47l35_mif1_pins[] = { 6, 15 };
  32
  33 static const struct madera_pin_groups cs47l35_pin_groups[] = {
  34         { "aif1", cs47l35_aif1_pins, ARRAY_SIZE(cs47l35_aif1_pins) },
  35         { "aif2", cs47l35_aif2_pins, ARRAY_SIZE(cs47l35_aif2_pins) },
  36         { "aif3", cs47l35_aif3_pins, ARRAY_SIZE(cs47l35_aif3_pins) },
  37         { "mif1", cs47l35_mif1_pins, ARRAY_SIZE(cs47l35_mif1_pins) },
  38         { "pdmspk1", cs47l35_spk_pins, ARRAY_SIZE(cs47l35_spk_pins) },
  39 };
  40
  41 const struct madera_pin_chip cs47l35_pin_chip = {
  42         .n_pins = CS47L35_NUM_GPIOS,
  43         .pin_groups = cs47l35_pin_groups,
  44         .n_pin_groups = ARRAY_SIZE(cs47l35_pin_groups),
  45 };