lkml.org 
[lkml]   [2011]   [Aug]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 2/2] regmap: Skip precious registers when dumping registers via debugfs
Date
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---
drivers/base/regmap/internal.h | 1 +
drivers/base/regmap/regmap-debugfs.c | 4 ++++
drivers/base/regmap/regmap.c | 1 +
3 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/drivers/base/regmap/internal.h b/drivers/base/regmap/internal.h
index 78f87f3..a67dc68 100644
--- a/drivers/base/regmap/internal.h
+++ b/drivers/base/regmap/internal.h
@@ -45,6 +45,7 @@ struct regmap {
bool (*writeable_reg)(struct device *dev, unsigned int reg);
bool (*readable_reg)(struct device *dev, unsigned int reg);
bool (*volatile_reg)(struct device *dev, unsigned int reg);
+ bool (*precious_reg)(struct device *dev, unsigned int reg);
};

#ifdef CONFIG_DEBUG_FS
diff --git a/drivers/base/regmap/regmap-debugfs.c b/drivers/base/regmap/regmap-debugfs.c
index 2be8bf8..184b618 100644
--- a/drivers/base/regmap/regmap-debugfs.c
+++ b/drivers/base/regmap/regmap-debugfs.c
@@ -56,6 +56,10 @@ static ssize_t regmap_map_read_file(struct file *file, char __user *user_buf,
!map->readable_reg(map->dev, i))
continue;

+ if (map->precious_reg &&
+ map->precious_reg(map->dev, i))
+ continue;
+
/* If we're in the region the user is trying to read */
if (p >= *ppos) {
/* ...but not beyond it */
diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index e68556c..c25c13c 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -101,6 +101,7 @@ struct regmap *regmap_init(struct device *dev,
map->writeable_reg = config->writeable_reg;
map->readable_reg = config->readable_reg;
map->volatile_reg = config->volatile_reg;
+ map->precious_reg = config->precious_reg;

switch (config->reg_bits) {
case 4:
--
1.7.5.4


\
 
 \ /
  Last update: 2011-08-08 09:53    [W:0.026 / U:0.120 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site