root/drivers/pinctrl/cirrus/pinctrl-cs47l35.c

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