From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751244AbdHCH3T (ORCPT ); Thu, 3 Aug 2017 03:29:19 -0400 Received: from regular1.263xmail.com ([211.150.99.131]:32804 "EHLO regular1.263xmail.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750945AbdHCH3R (ORCPT ); Thu, 3 Aug 2017 03:29:17 -0400 X-263anti-spam: KSV:0;BIG:0; X-MAIL-GRAY: 0 X-MAIL-DELIVERY: 1 X-KSVirus-check: 0 X-ADDR-CHECKED: 0 X-ABS-CHECKED: 1 X-SKE-CHECKED: 1 X-ANTISPAM-LEVEL: 2 X-RL-SENDER: wzz@rock-chips.com X-FST-TO: linux-kernel@vger.kernel.org X-SENDER-IP: 103.29.142.67 X-LOGIN-NAME: wzz@rock-chips.com X-UNIQUE-TAG: <53a6d86a5d33b094972afca86bc2f228> X-ATTACHMENT-NUM: 0 X-DNS-TYPE: 0 From: Zain Wang To: Guenter Roeck , Yueyao Zhu Cc: "open list:ARM/Rockchip SoC..." , "linux-kernel@vger.kernel.org" Subject: Some ideas about tcpm driver Message-ID: Date: Thu, 3 Aug 2017 15:28:53 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.2.1 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi all, In recent days, I tested the fusb302 driver with tcpm. (RK3399 evb board) But I found an issues: There is not a regulator for type-c vbus power-supply in my board. The vbus is just controlled by a gpio-pin, and unable to support other voltage except 5V. But now, I can't use fusb302 driver without workaround fix. Could you fix it in next version? @Yueyao The altmode looks not complete. I can't enter DP Alt Mode now. And we'd like to used extcon function (used in Chrome) to link usb, dp and type-c together. How do you think about it? @Guenter Thanks Zain