^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * arizona-spi.c -- Arizona SPI bus interface
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright 2012 Wolfson Microelectronics plc
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/err.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/pm_runtime.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/regmap.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/regulator/consumer.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/spi/spi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/of.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/mfd/arizona/core.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include "arizona.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) static int arizona_spi_probe(struct spi_device *spi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) const struct spi_device_id *id = spi_get_device_id(spi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) struct arizona *arizona;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) const struct regmap_config *regmap_config = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) unsigned long type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) if (spi->dev.of_node)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) type = arizona_of_get_type(&spi->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) type = id->driver_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) switch (type) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) case WM5102:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) if (IS_ENABLED(CONFIG_MFD_WM5102))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) regmap_config = &wm5102_spi_regmap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) case WM5110:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) case WM8280:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) if (IS_ENABLED(CONFIG_MFD_WM5110))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) regmap_config = &wm5110_spi_regmap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) case WM1831:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) case CS47L24:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) if (IS_ENABLED(CONFIG_MFD_CS47L24))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) regmap_config = &cs47l24_spi_regmap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) dev_err(&spi->dev, "Unknown device type %ld\n", type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) if (!regmap_config) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) dev_err(&spi->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) "No kernel support for device type %ld\n", type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) arizona = devm_kzalloc(&spi->dev, sizeof(*arizona), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) if (arizona == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) arizona->regmap = devm_regmap_init_spi(spi, regmap_config);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) if (IS_ERR(arizona->regmap)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) ret = PTR_ERR(arizona->regmap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) dev_err(&spi->dev, "Failed to allocate register map: %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) arizona->type = type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) arizona->dev = &spi->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) arizona->irq = spi->irq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) return arizona_dev_init(arizona);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) static int arizona_spi_remove(struct spi_device *spi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) struct arizona *arizona = spi_get_drvdata(spi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) arizona_dev_exit(arizona);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) static const struct spi_device_id arizona_spi_ids[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) { "wm5102", WM5102 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) { "wm5110", WM5110 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) { "wm8280", WM8280 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) { "wm1831", WM1831 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) { "cs47l24", CS47L24 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) { },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) MODULE_DEVICE_TABLE(spi, arizona_spi_ids);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) static struct spi_driver arizona_spi_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) .name = "arizona",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) .pm = &arizona_pm_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) .of_match_table = of_match_ptr(arizona_of_match),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) .probe = arizona_spi_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) .remove = arizona_spi_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) .id_table = arizona_spi_ids,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) module_spi_driver(arizona_spi_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) MODULE_DESCRIPTION("Arizona SPI bus interface");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) MODULE_LICENSE("GPL");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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