10d463d01SJames Schulman // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 20d463d01SJames Schulman // 30d463d01SJames Schulman // cs35l45-i2c.c -- CS35L45 I2C driver 40d463d01SJames Schulman // 50d463d01SJames Schulman // Copyright 2019-2022 Cirrus Logic, Inc. 60d463d01SJames Schulman // 70d463d01SJames Schulman // Author: James Schulman <james.schulman@cirrus.com> 80d463d01SJames Schulman 90d463d01SJames Schulman #include <linux/device.h> 100d463d01SJames Schulman #include <linux/module.h> 110d463d01SJames Schulman #include <linux/i2c.h> 120d463d01SJames Schulman #include <linux/regmap.h> 130d463d01SJames Schulman 140d463d01SJames Schulman #include "cs35l45.h" 150d463d01SJames Schulman 160d463d01SJames Schulman static int cs35l45_i2c_probe(struct i2c_client *client) 170d463d01SJames Schulman { 180d463d01SJames Schulman struct cs35l45_private *cs35l45; 190d463d01SJames Schulman struct device *dev = &client->dev; 200d463d01SJames Schulman int ret; 210d463d01SJames Schulman 220d463d01SJames Schulman cs35l45 = devm_kzalloc(dev, sizeof(struct cs35l45_private), GFP_KERNEL); 230d463d01SJames Schulman if (!cs35l45) 240d463d01SJames Schulman return -ENOMEM; 250d463d01SJames Schulman 260d463d01SJames Schulman i2c_set_clientdata(client, cs35l45); 270d463d01SJames Schulman cs35l45->regmap = devm_regmap_init_i2c(client, &cs35l45_i2c_regmap); 280d463d01SJames Schulman if (IS_ERR(cs35l45->regmap)) { 290d463d01SJames Schulman ret = PTR_ERR(cs35l45->regmap); 300d463d01SJames Schulman dev_err(dev, "Failed to allocate register map: %d\n", ret); 310d463d01SJames Schulman return ret; 320d463d01SJames Schulman } 330d463d01SJames Schulman 340d463d01SJames Schulman cs35l45->dev = dev; 356085f9e6SVlad.Karpovich cs35l45->irq = client->irq; 36*6c07be8fSVlad.Karpovich cs35l45->bus_type = CONTROL_BUS_I2C; 37*6c07be8fSVlad.Karpovich cs35l45->i2c_addr = client->addr; 380d463d01SJames Schulman 390d463d01SJames Schulman return cs35l45_probe(cs35l45); 400d463d01SJames Schulman } 410d463d01SJames Schulman 42ed5c2f5fSUwe Kleine-König static void cs35l45_i2c_remove(struct i2c_client *client) 430d463d01SJames Schulman { 440d463d01SJames Schulman struct cs35l45_private *cs35l45 = i2c_get_clientdata(client); 450d463d01SJames Schulman 4684965cc6SUwe Kleine-König cs35l45_remove(cs35l45); 470d463d01SJames Schulman } 480d463d01SJames Schulman 490d463d01SJames Schulman static const struct of_device_id cs35l45_of_match[] = { 500d463d01SJames Schulman { .compatible = "cirrus,cs35l45" }, 510d463d01SJames Schulman {}, 520d463d01SJames Schulman }; 530d463d01SJames Schulman MODULE_DEVICE_TABLE(of, cs35l45_of_match); 540d463d01SJames Schulman 550d463d01SJames Schulman static const struct i2c_device_id cs35l45_id_i2c[] = { 560d463d01SJames Schulman { "cs35l45", 0 }, 570d463d01SJames Schulman {} 580d463d01SJames Schulman }; 590d463d01SJames Schulman MODULE_DEVICE_TABLE(i2c, cs35l45_id_i2c); 600d463d01SJames Schulman 610d463d01SJames Schulman static struct i2c_driver cs35l45_i2c_driver = { 620d463d01SJames Schulman .driver = { 630d463d01SJames Schulman .name = "cs35l45", 640d463d01SJames Schulman .of_match_table = cs35l45_of_match, 650d463d01SJames Schulman .pm = &cs35l45_pm_ops, 660d463d01SJames Schulman }, 670d463d01SJames Schulman .id_table = cs35l45_id_i2c, 680d463d01SJames Schulman .probe_new = cs35l45_i2c_probe, 690d463d01SJames Schulman .remove = cs35l45_i2c_remove, 700d463d01SJames Schulman }; 710d463d01SJames Schulman module_i2c_driver(cs35l45_i2c_driver); 720d463d01SJames Schulman 730d463d01SJames Schulman MODULE_DESCRIPTION("I2C CS35L45 driver"); 740d463d01SJames Schulman MODULE_AUTHOR("James Schulman, Cirrus Logic Inc, <james.schulman@cirrus.com>"); 750d463d01SJames Schulman MODULE_LICENSE("Dual BSD/GPL"); 7631c90dd5SRichard Fitzgerald MODULE_IMPORT_NS(SND_SOC_CS35L45); 77