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Commit 02071f0f authored by Chen-Yu Tsai's avatar Chen-Yu Tsai Committed by Lee Jones
Browse files

mfd: axp20x: Add support for RSB based AXP223 PMIC 



The AXP223 is a new PMIC commonly paired with Allwinner A23/A33 SoCs.
It is functionally identical to AXP221; only the regulator default
voltage/status and the external host interface are different.

Signed-off-by: default avatarChen-Yu Tsai <wens@csie.org>
Signed-off-by: default avatarLee Jones <lee.jones@linaro.org>
parent 2260a453

drivers/mfd/Kconfig

+11 −0
Original line number Original line Diff line number Diff line
@@ -107,6 +107,17 @@ config MFD_AXP20X_I2C 
	  components like regulators or the PEK (Power Enable Key) under the

	  components like regulators or the PEK (Power Enable Key) under the

	  corresponding menus.

	  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

config MFD_CROS_EC

	tristate "ChromeOS Embedded Controller"

	tristate "ChromeOS Embedded Controller"

	select MFD_CORE

	select MFD_CORE

drivers/mfd/Makefile

+1 −0
Original line number Original line Diff line number Diff line
@@ -112,6 +112,7 @@ obj-$(CONFIG_MFD_DA9052_SPI) += da9052-spi.o 
obj-$(CONFIG_MFD_DA9052_I2C)	+= da9052-i2c.o

obj-$(CONFIG_MFD_DA9052_I2C)	+= da9052-i2c.o

obj-$(CONFIG_MFD_AXP20X)	+= axp20x.o

obj-$(CONFIG_MFD_AXP20X)	+= axp20x.o

obj-$(CONFIG_MFD_AXP20X_I2C)	+= axp20x-i2c.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_LP3943)	+= lp3943.o

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

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

drivers/mfd/axp20x-rsb.c

0 → 100644
+80 −0
Original line number Original line Diff line number Diff line 
/*

 * 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
Original line number Original line Diff line number Diff line
@@ -35,6 +35,7 @@ static const char * const axp20x_model_names[] = { 
	"AXP202",

	"AXP202",

	"AXP209",

	"AXP209",

	"AXP221",

	"AXP221",

	"AXP223",

	"AXP288",

	"AXP288",

};

};
@@ -618,6 +619,7 @@ int axp20x_match_device(struct axp20x_dev *axp20x) 
		axp20x->regmap_irq_chip = &axp20x_regmap_irq_chip;

		axp20x->regmap_irq_chip = &axp20x_regmap_irq_chip;

		break;

		break;

	case AXP221_ID:

	case AXP221_ID:

	case AXP223_ID:

		axp20x->nr_cells = ARRAY_SIZE(axp22x_cells);

		axp20x->nr_cells = ARRAY_SIZE(axp22x_cells);

		axp20x->cells = axp22x_cells;

		axp20x->cells = axp22x_cells;

		axp20x->regmap_cfg = &axp22x_regmap_config;

		axp20x->regmap_cfg = &axp22x_regmap_config;

include/linux/mfd/axp20x.h

+1 −0
Original line number Original line Diff line number Diff line
@@ -18,6 +18,7 @@ enum { 
	AXP202_ID,

	AXP202_ID,

	AXP209_ID,

	AXP209_ID,

	AXP221_ID,

	AXP221_ID,

	AXP223_ID,

	AXP288_ID,

	AXP288_ID,

	NR_AXP20X_VARIANTS,

	NR_AXP20X_VARIANTS,

};

};