From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EBD39CA9EB9 for ; Tue, 22 Oct 2019 13:23:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B89F721783 for ; Tue, 22 Oct 2019 13:23:13 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="WFSGM0/V" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387953AbfJVNXM (ORCPT ); Tue, 22 Oct 2019 09:23:12 -0400 Received: from lelv0143.ext.ti.com ([198.47.23.248]:42580 "EHLO lelv0143.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731900AbfJVNXM (ORCPT ); Tue, 22 Oct 2019 09:23:12 -0400 Received: from lelv0265.itg.ti.com ([10.180.67.224]) by lelv0143.ext.ti.com (8.15.2/8.15.2) with ESMTP id x9MDN92i086982; Tue, 22 Oct 2019 08:23:09 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1571750589; bh=959IPe/7SWQE1ma2r3Hx0VuoAIgKUJl/uvGTSglRrsc=; h=From:To:CC:Subject:Date; b=WFSGM0/V6TqcnEVBMWnHd9yjA1CsWzQVexn9Dwql6jFzaqhnHObk+oVDqh6KylkDS SBao+6htLGAj4CbO7sJcq3RnXima0qaekXlFkoYOODcgCXUcrPVY30oMlo7keHiZ8D 7M+GSVJI2RmbwvZvseo//yoAC8z+OZEEwdFgWE6Y= Received: from DLEE107.ent.ti.com (dlee107.ent.ti.com [157.170.170.37]) by lelv0265.itg.ti.com (8.15.2/8.15.2) with ESMTPS id x9MDN9Xg068061 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 22 Oct 2019 08:23:09 -0500 Received: from DLEE109.ent.ti.com (157.170.170.41) by DLEE107.ent.ti.com (157.170.170.37) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1713.5; Tue, 22 Oct 2019 08:23:08 -0500 Received: from lelv0327.itg.ti.com (10.180.67.183) by DLEE109.ent.ti.com (157.170.170.41) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1713.5 via Frontend Transport; Tue, 22 Oct 2019 08:22:59 -0500 Received: from lta0400828a.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id x9MDMplY126427; Tue, 22 Oct 2019 08:22:52 -0500 From: Roger Quadros To: CC: , , , , , , Roger Quadros Subject: [PATCH 0/3] phy: cadence: j721e-wiz: Add Type-C plug flip support Date: Tue, 22 Oct 2019 16:22:46 +0300 Message-ID: <20191022132249.869-1-rogerq@ti.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 Content-Type: text/plain X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, On J721e platform, the 2 lanes of SERDES PHY are used to achieve USB Type-C plug flip support without any additional MUX component by using a lane swap feature. However, the driver needs to know the Type-C plug orientation before it can decide whether to swap the lanes or not. This is achieved via a GPIO named DIR. Another constraint is that the lane swap must happen only when the PHY is in inactive state. This is achieved by sampling the GPIO and programming the lane swap before bringing the PHY out of reset. This series adds support to read the GPIO and accordingly program the Lane swap for Type-C plug flip support. Series must be applied on top of https://lkml.org/lkml/2019/10/16/517 cheers, -roger Roger Quadros (3): phy: cadence: Sierra: add phy_reset hook dt-bindings: phy: ti,phy-j721e-wiz: Add Type-C dir GPIO phy: ti: j721e-wiz: Manage typec-gpio-dir .../bindings/phy/ti,phy-j721e-wiz.txt | 9 ++++ drivers/phy/cadence/phy-cadence-sierra.c | 10 +++++ drivers/phy/ti/phy-j721e-wiz.c | 41 +++++++++++++++++++ 3 files changed, 60 insertions(+) -- Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki