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path: root/drivers/base/regmap/regmap-debugfs.c
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Diffstat (limited to 'drivers/base/regmap/regmap-debugfs.c')
-rw-r--r--drivers/base/regmap/regmap-debugfs.c16
1 files changed, 13 insertions, 3 deletions
diff --git a/drivers/base/regmap/regmap-debugfs.c b/drivers/base/regmap/regmap-debugfs.c
index 1ee3d40861c7..36ce3511c733 100644
--- a/drivers/base/regmap/regmap-debugfs.c
+++ b/drivers/base/regmap/regmap-debugfs.c
@@ -77,6 +77,17 @@ static void regmap_debugfs_free_dump_cache(struct regmap *map)
}
}
+static bool regmap_printable(struct regmap *map, unsigned int reg)
+{
+ if (regmap_precious(map, reg))
+ return false;
+
+ if (!regmap_readable(map, reg) && !regmap_cached(map, reg))
+ return false;
+
+ return true;
+}
+
/*
* Work out where the start offset maps into register numbers, bearing
* in mind that we suppress hidden registers.
@@ -105,8 +116,7 @@ static unsigned int regmap_debugfs_get_dump_start(struct regmap *map,
if (list_empty(&map->debugfs_off_cache)) {
for (; i <= map->max_register; i += map->reg_stride) {
/* Skip unprinted registers, closing off cache entry */
- if (!regmap_readable(map, i) ||
- regmap_precious(map, i)) {
+ if (!regmap_printable(map, i)) {
if (c) {
c->max = p - 1;
c->max_reg = i - map->reg_stride;
@@ -204,7 +214,7 @@ static ssize_t regmap_read_debugfs(struct regmap *map, unsigned int from,
start_reg = regmap_debugfs_get_dump_start(map, from, *ppos, &p);
for (i = start_reg; i <= to; i += map->reg_stride) {
- if (!regmap_readable(map, i))
+ if (!regmap_readable(map, i) && !regmap_cached(map, i))
continue;
if (regmap_precious(map, i))