On Wed, Apr 19, 2017 at 05:00:33PM +0800, Shawn Lin wrote: > By default, dw_mmc-rockchip will execute tuning for each degree. > So we won't miss every point of the good sample windows. However, > probably the phases are linear inside the good sample window. > Actually we don't need to do tuning for each degree so that we could > save some time, for instance, probe the driver or resume from S3. > > Signed-off-by: Shawn Lin <shawn.lin@xxxxxxxxxxxxxx> > --- > > Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.txt | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.txt b/Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.txt > index 520d61d..ea47ec0 100644 > --- a/Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.txt > +++ b/Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.txt > @@ -31,6 +31,10 @@ Optional Properties: > probing, low speeds or in case where all phases work at tuning time. > If not specified 0 deg will be used. > > +* rockchip,default-num-phases: The default number of times that the host > + execute tuning when needed. If not specified, the host will do tuning > + for 360 times, namely tuning for each degree. How is it default when you specify it? I would think default here is 360. Should this be common? Rob -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
