From c2c1ee66016a45477f58f0fd30907b1e959ca76b Mon Sep 17 00:00:00 2001 From: Dimitris Papastamos Date: Fri, 8 Feb 2013 12:47:14 +0000 Subject: [PATCH] regmap: debugfs: Add a `max_reg' member in struct regmap_debugfs_off_cache We are keeping track of the maximum register as well, this will make things easier for us in sharing this code with the code implementing the register ranges functionality. It also simplifies a bit the calculations when looking for the relevant block:offset from within the cache. Signed-off-by: Dimitris Papastamos Signed-off-by: Mark Brown --- drivers/base/regmap/internal.h | 1 + drivers/base/regmap/regmap-debugfs.c | 8 ++++++++ 2 files changed, 9 insertions(+) diff --git a/drivers/base/regmap/internal.h b/drivers/base/regmap/internal.h index 401d191..26b8ffd 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 0e94fd3..3fade1c 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); } -- 2.7.4