b5bfc8ab24
The AXP717a is a PMIC chip produced by X-Powers, it can be connected to an I2C or RSB bus. It's a rather complete PMIC, with many regulators, interrupts, an ADC and battery charging functionality. It also offer USB type-C CC pin handling. Describe the regmap and the MFD bits, along with the registers exposed via I2C or RSB. This covers the regulator, interrupts and power key devices for now. Advertise the device using the new compatible string. Signed-off-by: Andre Przywara <andre.przywara@arm.com> Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com> Tested-by: Ryan Walklin <ryan@testtoast.com> Link: https://lore.kernel.org/r/20240310010211.28653-4-andre.przywara@arm.com Signed-off-by: Lee Jones <lee@kernel.org>
83 lines
2.2 KiB
C
83 lines
2.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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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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#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 void 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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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,axp717", .data = (void *)AXP717_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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{ .compatible = "x-powers,axp813", .data = (void *)AXP813_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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