Orange Pi5 kernel

^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)  * RSB driver for the X-Powers' Power Management ICs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  * AXP20x typically comprises an adaptive USB-Compatible PWM charger, BUCK DC-DC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  * converters, LDOs, multiple 12-bit ADCs of voltage, current and temperature
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  * as well as configurable GPIOs.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9)  * This driver supports the RSB variants.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)  * Copyright (C) 2015 Chen-Yu Tsai
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)  * Author: Chen-Yu Tsai <wens@csie.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/acpi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/err.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/mfd/axp20x.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <linux/of.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <linux/regmap.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include <linux/sunxi-rsb.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) static int axp20x_rsb_probe(struct sunxi_rsb_device *rdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 	struct axp20x_dev *axp20x;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 	axp20x = devm_kzalloc(&rdev->dev, sizeof(*axp20x), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 	if (!axp20x)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 	axp20x->dev = &rdev->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 	axp20x->irq = rdev->irq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 	dev_set_drvdata(&rdev->dev, axp20x);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 	ret = axp20x_match_device(axp20x);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 	if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 	axp20x->regmap = devm_regmap_init_sunxi_rsb(rdev, axp20x->regmap_cfg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 	if (IS_ERR(axp20x->regmap)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 		ret = PTR_ERR(axp20x->regmap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 		dev_err(&rdev->dev, "regmap init failed: %d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 	return axp20x_device_probe(axp20x);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) static int axp20x_rsb_remove(struct sunxi_rsb_device *rdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 	struct axp20x_dev *axp20x = sunxi_rsb_device_get_drvdata(rdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) 	return axp20x_device_remove(axp20x);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) static const struct of_device_id axp20x_rsb_of_match[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) 	{ .compatible = "x-powers,axp223", .data = (void *)AXP223_ID },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) 	{ .compatible = "x-powers,axp803", .data = (void *)AXP803_ID },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) 	{ .compatible = "x-powers,axp806", .data = (void *)AXP806_ID },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) 	{ .compatible = "x-powers,axp809", .data = (void *)AXP809_ID },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) 	{ .compatible = "x-powers,axp813", .data = (void *)AXP813_ID },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) 	{ },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) MODULE_DEVICE_TABLE(of, axp20x_rsb_of_match);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) static struct sunxi_rsb_driver axp20x_rsb_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) 	.driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) 		.name	= "axp20x-rsb",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) 		.of_match_table	= of_match_ptr(axp20x_rsb_of_match),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) 	.probe	= axp20x_rsb_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) 	.remove	= axp20x_rsb_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) module_sunxi_rsb_driver(axp20x_rsb_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) MODULE_DESCRIPTION("PMIC MFD sunXi RSB driver for AXP20X");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) MODULE_AUTHOR("Chen-Yu Tsai <wens@csie.org>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) MODULE_LICENSE("GPL v2");