regmap: Allow ranges to be named

For more useful diagnostics.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

3 files changed, 6 insertions, 0 deletions

diff --git a/drivers/base/regmap/internal.h b/drivers/base/regmap/internal.h
index 80f9ab9c3aa4..27e66c3e7a59 100644
--- a/drivers/base/regmap/internal.h
+++ b/drivers/base/regmap/internal.h
@@ -120,6 +120,7 @@ int _regmap_write(struct regmap *map, unsigned int reg,
 
 struct regmap_range_node {
         struct rb_node node;
+        const char *name;
 
         unsigned int range_min;
         unsigned int range_max;
diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index 0544f63ecd31..ce5129df4406 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -579,6 +579,7 @@ struct regmap *regmap_init(struct device *dev,
                         goto err_range;
                 }
 
+                new->name = range_cfg->name;
                 new->range_min = range_cfg->range_min;
                 new->range_max = range_cfg->range_max;
                 new->selector_reg = range_cfg->selector_reg;
diff --git a/include/linux/regmap.h b/include/linux/regmap.h
index afc8e1a2cd1b..9f228d7f7ac4 100644
--- a/include/linux/regmap.h
+++ b/include/linux/regmap.h
@@ -142,6 +142,8 @@ struct regmap_config {
  *     1. page selector register update;
  *     2. access through data window registers.
  *
+ * @name: Descriptive name for diagnostics
+ *
  * @range_min: Address of the lowest register address in virtual range.
  * @range_max: Address of the highest register in virtual range.
  *
@@ -153,6 +155,8 @@ struct regmap_config {
  * @window_len: Number of registers in data window.
  */
 struct regmap_range_cfg {
+        const char *name;
+
         /* Registers of virtual address range */
         unsigned int range_min;
         unsigned int range_max;