mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-14 05:26:41 +07:00
e39be3a31b
If the inlcude headers aren't sorted alphabetically, then the logical choice is to append new ones, however that creates a lot of potential for conflicts or duplicates because every change will then add new includes in the same location. Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com> Signed-off-by: Mark Brown <broonie@kernel.org>
73 lines
1.4 KiB
C
73 lines
1.4 KiB
C
/*
|
|
* Register cache access API - flat caching support
|
|
*
|
|
* Copyright 2012 Wolfson Microelectronics plc
|
|
*
|
|
* Author: Mark Brown <broonie@opensource.wolfsonmicro.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 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#include <linux/device.h>
|
|
#include <linux/seq_file.h>
|
|
#include <linux/slab.h>
|
|
|
|
#include "internal.h"
|
|
|
|
static int regcache_flat_init(struct regmap *map)
|
|
{
|
|
int i;
|
|
unsigned int *cache;
|
|
|
|
map->cache = kzalloc(sizeof(unsigned int) * (map->max_register + 1),
|
|
GFP_KERNEL);
|
|
if (!map->cache)
|
|
return -ENOMEM;
|
|
|
|
cache = map->cache;
|
|
|
|
for (i = 0; i < map->num_reg_defaults; i++)
|
|
cache[map->reg_defaults[i].reg] = map->reg_defaults[i].def;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int regcache_flat_exit(struct regmap *map)
|
|
{
|
|
kfree(map->cache);
|
|
map->cache = NULL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int regcache_flat_read(struct regmap *map,
|
|
unsigned int reg, unsigned int *value)
|
|
{
|
|
unsigned int *cache = map->cache;
|
|
|
|
*value = cache[reg];
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int regcache_flat_write(struct regmap *map, unsigned int reg,
|
|
unsigned int value)
|
|
{
|
|
unsigned int *cache = map->cache;
|
|
|
|
cache[reg] = value;
|
|
|
|
return 0;
|
|
}
|
|
|
|
struct regcache_ops regcache_flat_ops = {
|
|
.type = REGCACHE_FLAT,
|
|
.name = "flat",
|
|
.init = regcache_flat_init,
|
|
.exit = regcache_flat_exit,
|
|
.read = regcache_flat_read,
|
|
.write = regcache_flat_write,
|
|
};
|