Eric Lee / smarc-fsl-linux-kernel

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drivers/mfd/axp20x-rsb.c 2.17 KB
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d2912cb15   Thomas Gleixner   treewide: Replace... 
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  // SPDX-License-Identifier: GPL-2.0-only
02071f0f7   Chen-Yu Tsai   mfd: axp20x: Add ... 
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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>
02071f0f7   Chen-Yu Tsai   mfd: axp20x: Add ... 
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   */
  
  #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
  ", 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 },
1578353e0   Icenowy Zheng   mfd: axp20x: Supp... 
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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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  	{ },
  };
  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");