2 * arizona-spi.c -- Arizona SPI bus interface
4 * Copyright 2012 Wolfson Microelectronics plc
6 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
13 #include <linux/err.h>
14 #include <linux/module.h>
15 #include <linux/pm_runtime.h>
16 #include <linux/regmap.h>
17 #include <linux/regulator/consumer.h>
18 #include <linux/slab.h>
19 #include <linux/spi/spi.h>
22 #include <linux/mfd/arizona/core.h>
26 static int arizona_spi_probe(struct spi_device
*spi
)
28 const struct spi_device_id
*id
= spi_get_device_id(spi
);
29 struct arizona
*arizona
;
30 const struct regmap_config
*regmap_config
= NULL
;
35 type
= arizona_of_get_type(&spi
->dev
);
37 type
= id
->driver_data
;
41 if (IS_ENABLED(CONFIG_MFD_WM5102
))
42 regmap_config
= &wm5102_spi_regmap
;
46 if (IS_ENABLED(CONFIG_MFD_WM5110
))
47 regmap_config
= &wm5110_spi_regmap
;
50 dev_err(&spi
->dev
, "Unknown device type %ld\n",
57 "No kernel support for device type %ld\n", type
);
61 arizona
= devm_kzalloc(&spi
->dev
, sizeof(*arizona
), GFP_KERNEL
);
65 arizona
->regmap
= devm_regmap_init_spi(spi
, regmap_config
);
66 if (IS_ERR(arizona
->regmap
)) {
67 ret
= PTR_ERR(arizona
->regmap
);
68 dev_err(&spi
->dev
, "Failed to allocate register map: %d\n",
73 arizona
->type
= id
->driver_data
;
74 arizona
->dev
= &spi
->dev
;
75 arizona
->irq
= spi
->irq
;
77 return arizona_dev_init(arizona
);
80 static int arizona_spi_remove(struct spi_device
*spi
)
82 struct arizona
*arizona
= spi_get_drvdata(spi
);
84 arizona_dev_exit(arizona
);
89 static const struct spi_device_id arizona_spi_ids
[] = {
95 MODULE_DEVICE_TABLE(spi
, arizona_spi_ids
);
97 static struct spi_driver arizona_spi_driver
= {
100 .owner
= THIS_MODULE
,
101 .pm
= &arizona_pm_ops
,
102 .of_match_table
= of_match_ptr(arizona_of_match
),
104 .probe
= arizona_spi_probe
,
105 .remove
= arizona_spi_remove
,
106 .id_table
= arizona_spi_ids
,
109 module_spi_driver(arizona_spi_driver
);
111 MODULE_DESCRIPTION("Arizona SPI bus interface");
112 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
113 MODULE_LICENSE("GPL");