LXR linux/include/linux/mfd/pm8xxx/core.h

   1/*
   2 * Copyright (c) 2011, Code Aurora Forum. All rights reserved.
   3 *
   4 * This program is free software; you can redistribute it and/or modify
   5 * it under the terms of the GNU General Public License version 2 and
   6 * only version 2 as published by the Free Software Foundation.
   7 *
   8 * This program is distributed in the hope that it will be useful,
   9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 * GNU General Public License for more details.
  12 */
  13/*
  14 * Qualcomm PMIC 8xxx driver header file
  15 *
  16 */
  17
  18#ifndef __MFD_PM8XXX_CORE_H
  19#define __MFD_PM8XXX_CORE_H
  20
  21#include <linux/mfd/core.h>
  22
  23struct pm8xxx_drvdata {
  24        int     (*pmic_readb) (const struct device *dev, u16 addr, u8 *val);
  25        int     (*pmic_writeb) (const struct device *dev, u16 addr, u8 val);
  26        int     (*pmic_read_buf) (const struct device *dev, u16 addr, u8 *buf,
  27                                                                        int n);
  28        int     (*pmic_write_buf) (const struct device *dev, u16 addr, u8 *buf,
  29                                                                        int n);
  30        int     (*pmic_read_irq_stat) (const struct device *dev, int irq);
  31        void    *pm_chip_data;
  32};
  33
  34static inline int pm8xxx_readb(const struct device *dev, u16 addr, u8 *val)
  35{
  36        struct pm8xxx_drvdata *dd = dev_get_drvdata(dev);
  37
  38        if (!dd)
  39                return -EINVAL;
  40        return dd->pmic_readb(dev, addr, val);
  41}
  42
  43static inline int pm8xxx_writeb(const struct device *dev, u16 addr, u8 val)
  44{
  45        struct pm8xxx_drvdata *dd = dev_get_drvdata(dev);
  46
  47        if (!dd)
  48                return -EINVAL;
  49        return dd->pmic_writeb(dev, addr, val);
  50}
  51
  52static inline int pm8xxx_read_buf(const struct device *dev, u16 addr, u8 *buf,
  53                                                                        int n)
  54{
  55        struct pm8xxx_drvdata *dd = dev_get_drvdata(dev);
  56
  57        if (!dd)
  58                return -EINVAL;
  59        return dd->pmic_read_buf(dev, addr, buf, n);
  60}
  61
  62static inline int pm8xxx_write_buf(const struct device *dev, u16 addr, u8 *buf,
  63                                                                        int n)
  64{
  65        struct pm8xxx_drvdata *dd = dev_get_drvdata(dev);
  66
  67        if (!dd)
  68                return -EINVAL;
  69        return dd->pmic_write_buf(dev, addr, buf, n);
  70}
  71
  72static inline int pm8xxx_read_irq_stat(const struct device *dev, int irq)
  73{
  74        struct pm8xxx_drvdata *dd = dev_get_drvdata(dev);
  75
  76        if (!dd)
  77                return -EINVAL;
  78        return dd->pmic_read_irq_stat(dev, irq);
  79}
  80
  81#endif
  82