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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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1578353e05
AXP803 is a new PMIC chip produced by X-Powers, usually paired with A64 via RSB bus. The PMIC itself is like AXP288, but with RSB support and dedicated VBUS and ACIN. Add support for it in the axp20x mfd driver. Currently only power key function is supported. Signed-off-by: Icenowy Zheng <icenowy@aosc.io> Signed-off-by: Lee Jones <lee.jones@linaro.org>
84 lines
2.3 KiB
C
84 lines
2.3 KiB
C
/*
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* RSB driver for the X-Powers' Power Management ICs
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*
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* AXP20x typically comprises an adaptive USB-Compatible PWM charger, BUCK DC-DC
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* converters, LDOs, multiple 12-bit ADCs of voltage, current and temperature
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* as well as configurable GPIOs.
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*
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* This driver supports the RSB variants.
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*
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* Copyright (C) 2015 Chen-Yu Tsai
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*
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* Author: Chen-Yu Tsai <wens@csie.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/acpi.h>
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#include <linux/err.h>
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#include <linux/mfd/axp20x.h>
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#include <linux/module.h>
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#include <linux/of.h>
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#include <linux/regmap.h>
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#include <linux/slab.h>
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#include <linux/sunxi-rsb.h>
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static int axp20x_rsb_probe(struct sunxi_rsb_device *rdev)
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{
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struct axp20x_dev *axp20x;
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int ret;
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axp20x = devm_kzalloc(&rdev->dev, sizeof(*axp20x), GFP_KERNEL);
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if (!axp20x)
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return -ENOMEM;
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axp20x->dev = &rdev->dev;
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axp20x->irq = rdev->irq;
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dev_set_drvdata(&rdev->dev, axp20x);
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ret = axp20x_match_device(axp20x);
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if (ret)
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return ret;
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axp20x->regmap = devm_regmap_init_sunxi_rsb(rdev, axp20x->regmap_cfg);
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if (IS_ERR(axp20x->regmap)) {
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ret = PTR_ERR(axp20x->regmap);
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dev_err(&rdev->dev, "regmap init failed: %d\n", ret);
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return ret;
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}
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return axp20x_device_probe(axp20x);
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}
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static int axp20x_rsb_remove(struct sunxi_rsb_device *rdev)
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{
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struct axp20x_dev *axp20x = sunxi_rsb_device_get_drvdata(rdev);
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return axp20x_device_remove(axp20x);
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}
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static const struct of_device_id axp20x_rsb_of_match[] = {
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{ .compatible = "x-powers,axp223", .data = (void *)AXP223_ID },
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{ .compatible = "x-powers,axp803", .data = (void *)AXP803_ID },
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{ .compatible = "x-powers,axp806", .data = (void *)AXP806_ID },
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{ .compatible = "x-powers,axp809", .data = (void *)AXP809_ID },
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{ },
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};
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MODULE_DEVICE_TABLE(of, axp20x_rsb_of_match);
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static struct sunxi_rsb_driver axp20x_rsb_driver = {
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.driver = {
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.name = "axp20x-rsb",
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.of_match_table = of_match_ptr(axp20x_rsb_of_match),
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},
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.probe = axp20x_rsb_probe,
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.remove = axp20x_rsb_remove,
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};
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module_sunxi_rsb_driver(axp20x_rsb_driver);
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MODULE_DESCRIPTION("PMIC MFD sunXi RSB driver for AXP20X");
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MODULE_AUTHOR("Chen-Yu Tsai <wens@csie.org>");
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MODULE_LICENSE("GPL v2");
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