[U-Boot] [PATCH v11 13/16] regmap: Add overview documentation

[sjg at google.com]

Add some overview documentation that explains the purpose and some of
the features and limitations of the regmap interface.

Reviewed-by: Bin Meng <bmeng.cn at gmail.com>
Signed-off-by: Mario Six <mario.six at gdsys.cc>

---
v10 -> v11:
No changes

v9 -> v10:
No changes

v8 -> v9:
* Amended for inclusion of endianness setting via DT

v7 -> v8:
New in v8
---
 include/regmap.h | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

Applied to u-boot-dm/next, thanks!