2 files changed, 9 insertions, 0 deletions

diff --git a/drivers/base/regmap/internal.h b/drivers/base/regmap/internal.h
index 401d1919635a..26b8ffde1458 100644
--- a/drivers/base/regmap/internal.h
+++ b/drivers/base/regmap/internal.h
@@ -25,6 +25,7 @@ struct regmap_debugfs_off_cache {
         off_t min;
         off_t max;
         unsigned int base_reg;
+        unsigned int max_reg;
 };
 
 struct regmap_format {
diff --git a/drivers/base/regmap/regmap-debugfs.c b/drivers/base/regmap/regmap-debugfs.c
index 0e94fd3c95a3..3fade1ceaf15 100644
--- a/drivers/base/regmap/regmap-debugfs.c
+++ b/drivers/base/regmap/regmap-debugfs.c
@@ -81,6 +81,8 @@ static unsigned int regmap_debugfs_get_dump_start(struct regmap *map,
         struct regmap_debugfs_off_cache *c = NULL;
         loff_t p = 0;
         unsigned int i, ret;
+        unsigned int fpos_offset;
+        unsigned int reg_offset;
 
         /*
          * If we don't have a cache build one so we don't have to do a
@@ -93,6 +95,9 @@ static unsigned int regmap_debugfs_get_dump_start(struct regmap *map,
                             regmap_precious(map, i)) {
                                 if (c) {
                                         c->max = p - 1;
+                                        fpos_offset = c->max - c->min;
+                                        reg_offset = fpos_offset / map->debugfs_tot_len;
+                                        c->max_reg = c->base_reg + reg_offset;
                                         list_add_tail(&c->list,
                                                       &map->debugfs_off_cache);
                                         c = NULL;
@@ -119,6 +124,9 @@ static unsigned int regmap_debugfs_get_dump_start(struct regmap *map,
         /* Close the last entry off if we didn't scan beyond it */
         if (c) {
                 c->max = p - 1;
+                fpos_offset = c->max - c->min;
+                reg_offset = fpos_offset / map->debugfs_tot_len;
+                c->max_reg = c->base_reg + reg_offset;
                 list_add_tail(&c->list,
                               &map->debugfs_off_cache);
         }