lkml.org 
[lkml]   [2012]   [Feb]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] regmap: Implement support for 32 bit registers and values
Date
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---
drivers/base/regmap/regcache.c | 11 +++++++++++
drivers/base/regmap/regmap.c | 24 ++++++++++++++++++++++++
2 files changed, 35 insertions(+), 0 deletions(-)

diff --git a/drivers/base/regmap/regcache.c b/drivers/base/regmap/regcache.c
index a10e81c..0cadb11 100644
--- a/drivers/base/regmap/regcache.c
+++ b/drivers/base/regmap/regcache.c
@@ -386,6 +386,13 @@ 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();
}
@@ -407,6 +414,10 @@ 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();
}
diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index a871f14..d1db130 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -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 &&
--
1.7.9


\
 
 \ /
  Last update: 2012-02-18 01:05    [W:0.046 / U:1.848 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site