mmc: dw_mmc-rockchip: dt-binding: Add tuning related things
authorAlexandru M Stan <amstan@chromium.org>
Mon, 12 Oct 2015 12:48:27 +0000 (14:48 +0200)
committerUlf Hansson <ulf.hansson@linaro.org>
Mon, 26 Oct 2015 15:00:11 +0000 (16:00 +0100)
commitf8085bbada3b124b5b39b61bb1a7a0a78c24604b
treec62cff6365b3a0e4d6fc3f8a697601244cb90a8b
parente0848f5d294c703917260a6228cc08b8be46c527
mmc: dw_mmc-rockchip: dt-binding: Add tuning related things

Add ciu_drive, ciu_sample clocks and default-sample-phase. This will later
be used by tuning code.

We do not touch ciu_drive (and by extension define default-drive-phase).
Drive phase is mostly used to define minimum hold times, while one could
write some code to determine what phase meets the minimum hold time
(ex 10 degrees) this will not work with the current clock phase framework
(which floors angles, so we'll get 0 deg, and there's no way to know what
resolution the floors happen at). We assume that the default drive angles
set by the hardware are good enough.

Signed-off-by: Alexandru M Stan <amstan@chromium.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.txt