regmap: Provide register map dump via debugfs
Copy over the read parts of the ASoC debugfs implementation into regmap,
allowing users to see what the register values the device has are at
runtime. The implementation, especially the support for seeking, is
mostly due to Dimitris Papastamos' work in ASoC.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index f51efeb..a3eaef6 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -156,6 +156,8 @@
goto err_bus;
}
+ regmap_debugfs_init(map);
+
return map;
err_bus:
@@ -172,6 +174,7 @@
*/
void regmap_exit(struct regmap *map)
{
+ regmap_debugfs_exit(map);
kfree(map->work_buf);
module_put(map->bus->owner);
kfree(map);
@@ -472,3 +475,11 @@
return ret;
}
EXPORT_SYMBOL_GPL(regmap_update_bits);
+
+static int __init regmap_initcall(void)
+{
+ regmap_debugfs_initcall();
+
+ return 0;
+}
+postcore_initcall(regmap_initcall);