// SPDX-License-Identifier: GPL-2.0-only /* * RSB driver for the X-Powers' Power Management ICs * * AXP20x typically comprises an adaptive USB-Compatible PWM charger, BUCK DC-DC * converters, LDOs, multiple 12-bit ADCs of voltage, current and temperature * as well as configurable GPIOs. * * This driver supports the RSB variants. * * Copyright (C) 2015 Chen-Yu Tsai * * Author: Chen-Yu Tsai <wens@csie.org> */ #include <linux/acpi.h> #include <linux/err.h> #include <linux/mfd/axp20x.h> #include <linux/module.h> #include <linux/of.h> #include <linux/regmap.h> #include <linux/slab.h> #include <linux/sunxi-rsb.h> static int axp20x_rsb_probe(struct sunxi_rsb_device *rdev) { struct axp20x_dev *axp20x; int ret; axp20x = devm_kzalloc(&rdev->dev, sizeof(*axp20x), GFP_KERNEL); if (!axp20x) return -ENOMEM; axp20x->dev = &rdev->dev; axp20x->irq = rdev->irq; dev_set_drvdata(&rdev->dev, axp20x); ret = axp20x_match_device(axp20x); if (ret) return ret; axp20x->regmap = devm_regmap_init_sunxi_rsb(rdev, axp20x->regmap_cfg); if (IS_ERR(axp20x->regmap)) { ret = PTR_ERR(axp20x->regmap); dev_err(&rdev->dev, "regmap init failed: %d\n", ret); return ret; } return axp20x_device_probe(axp20x); } static int axp20x_rsb_remove(struct sunxi_rsb_device *rdev) { struct axp20x_dev *axp20x = sunxi_rsb_device_get_drvdata(rdev); return axp20x_device_remove(axp20x); } static const struct of_device_id axp20x_rsb_of_match[] = { { .compatible = "x-powers,axp223", .data = (void *)AXP223_ID }, { .compatible = "x-powers,axp803", .data = (void *)AXP803_ID }, { .compatible = "x-powers,axp806", .data = (void *)AXP806_ID }, { .compatible = "x-powers,axp809", .data = (void *)AXP809_ID }, { .compatible = "x-powers,axp813", .data = (void *)AXP813_ID }, { }, }; MODULE_DEVICE_TABLE(of, axp20x_rsb_of_match); static struct sunxi_rsb_driver axp20x_rsb_driver = { .driver = { .name = "axp20x-rsb", .of_match_table = of_match_ptr(axp20x_rsb_of_match), }, .probe = axp20x_rsb_probe, .remove = axp20x_rsb_remove, }; module_sunxi_rsb_driver(axp20x_rsb_driver); MODULE_DESCRIPTION("PMIC MFD sunXi RSB driver for AXP20X"); MODULE_AUTHOR("Chen-Yu Tsai <wens@csie.org>"); MODULE_LICENSE("GPL v2");