root/drivers/pinctrl/cirrus/pinctrl-cs47l15.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Pinctrl for Cirrus Logic CS47L15
   4  *
   5  * Copyright (C) 2018-2019 Cirrus Logic, Inc. and
   6  *                         Cirrus Logic International Semiconductor Ltd.
   7  */
   8 
   9 #include <linux/err.h>
  10 #include <linux/mfd/madera/core.h>
  11 
  12 #include "pinctrl-madera.h"
  13 
  14 /*
  15  * The alt func groups are the most commonly used functions we place these at
  16  * the lower function indexes for convenience, and the less commonly used gpio
  17  * functions at higher indexes.
  18  *
  19  * To stay consistent with the datasheet the function names are the same as
  20  * the group names for that function's pins
  21  *
  22  * Note - all 1 less than in datasheet because these are zero-indexed
  23  */
  24 static const unsigned int cs47l15_aif1_pins[] = { 0, 1, 2, 3 };
  25 static const unsigned int cs47l15_aif2_pins[] = { 4, 5, 6, 7 };
  26 static const unsigned int cs47l15_aif3_pins[] = { 8, 9, 10, 11 };
  27 static const unsigned int cs47l15_spk1_pins[] = { 12, 13, 14 };
  28 
  29 static const struct madera_pin_groups cs47l15_pin_groups[] = {
  30         { "aif1", cs47l15_aif1_pins, ARRAY_SIZE(cs47l15_aif1_pins) },
  31         { "aif2", cs47l15_aif2_pins, ARRAY_SIZE(cs47l15_aif2_pins) },
  32         { "aif3", cs47l15_aif3_pins, ARRAY_SIZE(cs47l15_aif3_pins) },
  33         { "pdmspk1", cs47l15_spk1_pins, ARRAY_SIZE(cs47l15_spk1_pins) },
  34 };
  35 
  36 const struct madera_pin_chip cs47l15_pin_chip = {
  37         .n_pins = CS47L15_NUM_GPIOS,
  38         .pin_groups = cs47l15_pin_groups,
  39         .n_pin_groups = ARRAY_SIZE(cs47l15_pin_groups),
  40 };