forked from luck/tmp_suning_uos_patched
559c04f6f1
Add read and write helper functions that the pm8921-core driver can use to read and write ssbi registers via a "no-bus" regmap. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
44 lines
1.1 KiB
C
44 lines
1.1 KiB
C
/* Copyright (C) 2010 Google, Inc.
|
|
* Copyright (c) 2011, Code Aurora Forum. All rights reserved.
|
|
* Author: Dima Zavin <dima@android.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 and
|
|
* only version 2 as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*/
|
|
|
|
#ifndef _LINUX_SSBI_H
|
|
#define _LINUX_SSBI_H
|
|
|
|
#include <linux/types.h>
|
|
|
|
int ssbi_write(struct device *dev, u16 addr, const u8 *buf, int len);
|
|
int ssbi_read(struct device *dev, u16 addr, u8 *buf, int len);
|
|
|
|
static inline int
|
|
ssbi_reg_read(void *context, unsigned int reg, unsigned int *val)
|
|
{
|
|
int ret;
|
|
u8 v;
|
|
|
|
ret = ssbi_read(context, reg, &v, 1);
|
|
if (!ret)
|
|
*val = v;
|
|
|
|
return ret;
|
|
}
|
|
|
|
static inline int
|
|
ssbi_reg_write(void *context, unsigned int reg, unsigned int val)
|
|
{
|
|
u8 v = val;
|
|
return ssbi_write(context, reg, &v, 1);
|
|
}
|
|
|
|
#endif
|