drivers/mfd/ac100.c

1 // SPDX-License-Identifier: GPL-2.0-only
3  * MFD core driver for X-Powers' AC100 Audio Codec IC
5  * The AC100 is a highly integrated audio codec and RTC subsystem designed
10  * The audio codec and RTC parts are completely separate, sharing only the
13  * Copyright (2016) Chen-Yu Tsai
15  * Author: Chen-Yu Tsai <wens@csie.org>
21 #include <linux/mfd/ac100.h>
25 #include <linux/sunxi-rsb.h>
80 		.name		= "ac100-codec",
81 		.of_compatible	= "x-powers,ac100-codec",
83 		.name		= "ac100-rtc",
84 		.of_compatible	= "x-powers,ac100-rtc",
90 	struct ac100_dev *ac100;  in ac100_rsb_probe()  local
93 	ac100 = devm_kzalloc(&rdev->dev, sizeof(*ac100), GFP_KERNEL);  in ac100_rsb_probe()
94 	if (!ac100)  in ac100_rsb_probe()
95 		return -ENOMEM;  in ac100_rsb_probe()
97 	ac100->dev = &rdev->dev;  in ac100_rsb_probe()
98 	sunxi_rsb_device_set_drvdata(rdev, ac100);  in ac100_rsb_probe()
100 	ac100->regmap = devm_regmap_init_sunxi_rsb(rdev, &ac100_regmap_config);  in ac100_rsb_probe()
101 	if (IS_ERR(ac100->regmap)) {  in ac100_rsb_probe()
102 		ret = PTR_ERR(ac100->regmap);  in ac100_rsb_probe()
103 		dev_err(ac100->dev, "regmap init failed: %d\n", ret);  in ac100_rsb_probe()
107 	ret = devm_mfd_add_devices(ac100->dev, PLATFORM_DEVID_NONE, ac100_cells,  in ac100_rsb_probe()
110 		dev_err(ac100->dev, "failed to add MFD devices: %d\n", ret);  in ac100_rsb_probe()
118 	{ .compatible = "x-powers,ac100" },
125 		.name	= "ac100",
132 MODULE_DESCRIPTION("Audio codec MFD core driver for AC100");
133 MODULE_AUTHOR("Chen-Yu Tsai <wens@csie.org>");