Hi Sir, Thank you for your review. I modified errors in Kconfig you pointed out. Could you please teach me what is the next step I need to do (This is my first submission to Linux kernel main-line)? 1. Should I make a patch [PATHC 1/3 v2] for Kconfig and submit again? 2. Or wait for other files of the patch [PATCH 1/3] being reviewed and then submit patch again. 3. At first patch, I used 'git send-email' command to send a patch series. The command is: git send-email \ --to linus.walleij@xxxxxxxxxx \ --to linux-gpio@xxxxxxxxxxxxxxx \ --to linux-kernel@xxxxxxxxxxxxxxx \ --to robh+dt@xxxxxxxxxx \ --to devicetree@xxxxxxxxxxxxxxx \ --cc dvorkin@xxxxxxxxx \ --cc qinjian@xxxxxxxxxxx \ --thread 000*.patch Please teach me what command options of 'git send-email' I should use to send the version 2 patch. 4. If this is not a correct way to reply your email, please teach me how to reply maintainers' email. Best regards, Wells Lu