mfd: axp20x: Add support for RSB based AXP223 PMIC (02071f0f) · Commits · 戴 / test

drivers/mfd/Kconfig

+11 −0

Original line number	Diff line number	Diff line
		@@ -107,6 +107,17 @@ config MFD_AXP20X_I2C
		components like regulators or the PEK (Power Enable Key) under the
		corresponding menus.

		config MFD_AXP20X_RSB
		tristate "X-Powers AXP series PMICs with RSB"
		select MFD_AXP20X
		depends on SUNXI_RSB
		help
		If you say Y here you get support for the X-Powers AXP series power
		management ICs (PMICs) controlled with RSB.
		This driver include only the core APIs. You have to select individual
		components like regulators or the PEK (Power Enable Key) under the
		corresponding menus.

		config MFD_CROS_EC
		tristate "ChromeOS Embedded Controller"
		select MFD_CORE

drivers/mfd/Makefile

+1 −0

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		@@ -112,6 +112,7 @@ obj-$(CONFIG_MFD_DA9052_SPI) += da9052-spi.o
		obj-$(CONFIG_MFD_DA9052_I2C) += da9052-i2c.o
		obj-$(CONFIG_MFD_AXP20X) += axp20x.o
		obj-$(CONFIG_MFD_AXP20X_I2C) += axp20x-i2c.o
		obj-$(CONFIG_MFD_AXP20X_RSB) += axp20x-rsb.o

		obj-$(CONFIG_MFD_LP3943) += lp3943.o
		obj-$(CONFIG_MFD_LP8788) += lp8788.o lp8788-irq.o

drivers/mfd/axp20x-rsb.c

0 → 100644

+80 −0

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		/*
		* 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>
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of the GNU General Public License version 2 as
		* published by the Free Software Foundation.
		*/

		#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 },
		{ },
		};
		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");

drivers/mfd/axp20x.c

+2 −0

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		@@ -35,6 +35,7 @@ static const char * const axp20x_model_names[] = {
		"AXP202",
		"AXP209",
		"AXP221",
		"AXP223",
		"AXP288",
		};

		@@ -618,6 +619,7 @@ int axp20x_match_device(struct axp20x_dev *axp20x)
		axp20x->regmap_irq_chip = &axp20x_regmap_irq_chip;
		break;
		case AXP221_ID:
		case AXP223_ID:
		axp20x->nr_cells = ARRAY_SIZE(axp22x_cells);
		axp20x->cells = axp22x_cells;
		axp20x->regmap_cfg = &axp22x_regmap_config;

include/linux/mfd/axp20x.h

+1 −0

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		@@ -18,6 +18,7 @@ enum {
		AXP202_ID,
		AXP209_ID,
		AXP221_ID,
		AXP223_ID,
		AXP288_ID,
		NR_AXP20X_VARIANTS,
		};

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