tree d085fd64c64d2d9f7d669c539e247876beafb7bb
parent 3379987e26956d9eab668a0811a0f0a9a056754f
author Masahiro Yamada <yamada.masahiro@socionext.com> 1467196739 +0900
committer Masahiro Yamada <yamada.masahiro@socionext.com> 1467405869 +0900

pinctrl: uniphier: support pin configuration for dedicated pins

PH1-LD4 and PH1-sLD8 SoCs have pins that support pin configuration
(pin biasing, drive strength control), but not pin-muxing.

Allow to fill the mux value table with -1 for those pins; pins with
mux value -1 will be skipped in the pin-mux set function.  The mux
value type should be changed from "unsigned" to "int" in order to
accommodate -1 as a special case.

[ Linux commit: 363c90e743b50a432a91a211dd8b078d9df446e9 ]

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>