Hi ChenYu, Thanks for your comments. On Tuesday, April 19, 2016 at 7:11:50 AM UTC-4, Chen-Yu Tsai wrote: > Hi, > > > arch/arm/boot/dts/sun8i-h3-orangepi-2.dts | 36 ++++++++++++++ > > arch/arm/boot/dts/sun8i-h3-orangepi-pc.dts | 36 ++++++++++++++ > > arch/arm/boot/dts/sun8i-h3.dtsi | 75 > > First of all, you are touching 3 different files here. These should > be separate patches. I'm trying to understand you here, but I can't. Those 3 files changed are related each other. I could have separated the UART changes from I2C changes, but still those 3 files would have been modified at the same time for a single commit and "git patch-format" would still have created a single patch for the 3 files commit. Seeing all the patches that coming into the mailing lists, all of them contains multiple files patches, why should it be different here ? > > Secondly, our policy is to not have a default function for generic GPIO pins. > If this is the official policy, then why so many DTS currently present are not following the same rules, such sun6i-a31-hummingbird, sun7i-a20-olinuxino-micro, sun7i-a20-mk808c, sun7i-a20-cubietruck and so many others ? I thought the rules were there to make DTS the most default common usage definitions for most end-users in a general availability. Then, if someone is really in shortage of GPIOs, they could easily turn them back to "disabled" state. Regards, Martin.