redonkable/alistair23-linux
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regmap: Implement support for 32 bit registers and values

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Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Mark Brown 2012-02-17 15:58:25 -08:00
parent 9cde5fcd43
commit 7d5e525b9c
2 changed files with 35 additions and 0 deletions
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11
drivers/base/regmap/regcache.c
View file

@ -372,6 +372,13 @@ bool regcache_set_val(void *base, unsigned int idx,
cache[idx] = val;
break;
}
case 4: {
u32 *cache = base;
if (cache[idx] == val)
return true;
cache[idx] = val;
break;
}
default:
BUG();
}
@ -393,6 +400,10 @@ unsigned int regcache_get_val(const void *base, unsigned int idx,
const u16 *cache = base;
return cache[idx];
}
case 4: {
const u32 *cache = base;
return cache[idx];
}
default:
BUG();
}

24
drivers/base/regmap/regmap.c
View file

@ -125,6 +125,13 @@ static void regmap_format_16(void *buf, unsigned int val)
b[0] = cpu_to_be16(val);
}
static void regmap_format_32(void *buf, unsigned int val)
{
__be32 *b = buf;
b[0] = cpu_to_be32(val);
}
static unsigned int regmap_parse_8(void *buf)
{
u8 *b = buf;
@ -141,6 +148,15 @@ static unsigned int regmap_parse_16(void *buf)
return b[0];
}
static unsigned int regmap_parse_32(void *buf)
{
__be32 *b = buf;
b[0] = be32_to_cpu(b[0]);
return b[0];
}
/**
* regmap_init(): Initialise register map
*
@ -239,6 +255,10 @@ struct regmap *regmap_init(struct device *dev,
map->format.format_reg = regmap_format_16;
break;
case 32:
map->format.format_reg = regmap_format_32;
break;
default:
goto err_map;
}
@ -252,6 +272,10 @@ struct regmap *regmap_init(struct device *dev,
map->format.format_val = regmap_format_16;
map->format.parse_val = regmap_parse_16;
break;
case 32:
map->format.format_val = regmap_format_32;
map->format.parse_val = regmap_parse_32;
break;
}
if (!map->format.format_write &&