On 2019/03/07 23:19, Robin Murphy wrote: > Judging by that schematic, I suspect that the GPIO should probably be ACTIVE_LOW. I tried patching according to your suggestion, and now it works fine. I'm going to make a patch after this. Thank you for your advice! Regards, Tomohiro Mayama _______________________________________________ Linux-rockchip mailing list Linux-rockchip@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/linux-rockchip