162306a36Sopenharmony_ci// SPDX-License-Identifier: GPL-2.0-only 262306a36Sopenharmony_ci/* 362306a36Sopenharmony_ci * RSB driver for the X-Powers' Power Management ICs 462306a36Sopenharmony_ci * 562306a36Sopenharmony_ci * AXP20x typically comprises an adaptive USB-Compatible PWM charger, BUCK DC-DC 662306a36Sopenharmony_ci * converters, LDOs, multiple 12-bit ADCs of voltage, current and temperature 762306a36Sopenharmony_ci * as well as configurable GPIOs. 862306a36Sopenharmony_ci * 962306a36Sopenharmony_ci * This driver supports the RSB variants. 1062306a36Sopenharmony_ci * 1162306a36Sopenharmony_ci * Copyright (C) 2015 Chen-Yu Tsai 1262306a36Sopenharmony_ci * 1362306a36Sopenharmony_ci * Author: Chen-Yu Tsai <wens@csie.org> 1462306a36Sopenharmony_ci */ 1562306a36Sopenharmony_ci 1662306a36Sopenharmony_ci#include <linux/acpi.h> 1762306a36Sopenharmony_ci#include <linux/err.h> 1862306a36Sopenharmony_ci#include <linux/mfd/axp20x.h> 1962306a36Sopenharmony_ci#include <linux/module.h> 2062306a36Sopenharmony_ci#include <linux/of.h> 2162306a36Sopenharmony_ci#include <linux/regmap.h> 2262306a36Sopenharmony_ci#include <linux/slab.h> 2362306a36Sopenharmony_ci#include <linux/sunxi-rsb.h> 2462306a36Sopenharmony_ci 2562306a36Sopenharmony_cistatic int axp20x_rsb_probe(struct sunxi_rsb_device *rdev) 2662306a36Sopenharmony_ci{ 2762306a36Sopenharmony_ci struct axp20x_dev *axp20x; 2862306a36Sopenharmony_ci int ret; 2962306a36Sopenharmony_ci 3062306a36Sopenharmony_ci axp20x = devm_kzalloc(&rdev->dev, sizeof(*axp20x), GFP_KERNEL); 3162306a36Sopenharmony_ci if (!axp20x) 3262306a36Sopenharmony_ci return -ENOMEM; 3362306a36Sopenharmony_ci 3462306a36Sopenharmony_ci axp20x->dev = &rdev->dev; 3562306a36Sopenharmony_ci axp20x->irq = rdev->irq; 3662306a36Sopenharmony_ci dev_set_drvdata(&rdev->dev, axp20x); 3762306a36Sopenharmony_ci 3862306a36Sopenharmony_ci ret = axp20x_match_device(axp20x); 3962306a36Sopenharmony_ci if (ret) 4062306a36Sopenharmony_ci return ret; 4162306a36Sopenharmony_ci 4262306a36Sopenharmony_ci axp20x->regmap = devm_regmap_init_sunxi_rsb(rdev, axp20x->regmap_cfg); 4362306a36Sopenharmony_ci if (IS_ERR(axp20x->regmap)) { 4462306a36Sopenharmony_ci ret = PTR_ERR(axp20x->regmap); 4562306a36Sopenharmony_ci dev_err(&rdev->dev, "regmap init failed: %d\n", ret); 4662306a36Sopenharmony_ci return ret; 4762306a36Sopenharmony_ci } 4862306a36Sopenharmony_ci 4962306a36Sopenharmony_ci return axp20x_device_probe(axp20x); 5062306a36Sopenharmony_ci} 5162306a36Sopenharmony_ci 5262306a36Sopenharmony_cistatic void axp20x_rsb_remove(struct sunxi_rsb_device *rdev) 5362306a36Sopenharmony_ci{ 5462306a36Sopenharmony_ci struct axp20x_dev *axp20x = sunxi_rsb_device_get_drvdata(rdev); 5562306a36Sopenharmony_ci 5662306a36Sopenharmony_ci axp20x_device_remove(axp20x); 5762306a36Sopenharmony_ci} 5862306a36Sopenharmony_ci 5962306a36Sopenharmony_cistatic const struct of_device_id axp20x_rsb_of_match[] = { 6062306a36Sopenharmony_ci { .compatible = "x-powers,axp223", .data = (void *)AXP223_ID }, 6162306a36Sopenharmony_ci { .compatible = "x-powers,axp803", .data = (void *)AXP803_ID }, 6262306a36Sopenharmony_ci { .compatible = "x-powers,axp806", .data = (void *)AXP806_ID }, 6362306a36Sopenharmony_ci { .compatible = "x-powers,axp809", .data = (void *)AXP809_ID }, 6462306a36Sopenharmony_ci { .compatible = "x-powers,axp813", .data = (void *)AXP813_ID }, 6562306a36Sopenharmony_ci { }, 6662306a36Sopenharmony_ci}; 6762306a36Sopenharmony_ciMODULE_DEVICE_TABLE(of, axp20x_rsb_of_match); 6862306a36Sopenharmony_ci 6962306a36Sopenharmony_cistatic struct sunxi_rsb_driver axp20x_rsb_driver = { 7062306a36Sopenharmony_ci .driver = { 7162306a36Sopenharmony_ci .name = "axp20x-rsb", 7262306a36Sopenharmony_ci .of_match_table = of_match_ptr(axp20x_rsb_of_match), 7362306a36Sopenharmony_ci }, 7462306a36Sopenharmony_ci .probe = axp20x_rsb_probe, 7562306a36Sopenharmony_ci .remove = axp20x_rsb_remove, 7662306a36Sopenharmony_ci}; 7762306a36Sopenharmony_cimodule_sunxi_rsb_driver(axp20x_rsb_driver); 7862306a36Sopenharmony_ci 7962306a36Sopenharmony_ciMODULE_DESCRIPTION("PMIC MFD sunXi RSB driver for AXP20X"); 8062306a36Sopenharmony_ciMODULE_AUTHOR("Chen-Yu Tsai <wens@csie.org>"); 8162306a36Sopenharmony_ciMODULE_LICENSE("GPL v2"); 82