From patchwork Thu May 7 15:00:47 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Akash Asthana X-Patchwork-Id: 189256 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=-9.5 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable 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 A8EFEC47247 for ; Thu, 7 May 2020 15:02:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8A26120857 for ; Thu, 7 May 2020 15:02:46 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="MlMuau2A" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726476AbgEGPCp (ORCPT ); Thu, 7 May 2020 11:02:45 -0400 Received: from mail26.static.mailgun.info ([104.130.122.26]:39263 "EHLO mail26.static.mailgun.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728190AbgEGPCp (ORCPT ); Thu, 7 May 2020 11:02:45 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1588863764; h=References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=pViwrlcmQ4tKYgRp1wnIuQY9NM/R6M6irGDCItt7vT4=; b=MlMuau2AXxjNQnnALB7pjKE/zUnkreufakwI3qN3WTa7Oq8FE/+3b33OKPL8GGSGKnkyT7cP rzAW/NYPO3Rm0ZvU9n5CEnnppGu/mVSYmOckx4rAiuiUJnTUbT2c1gc++Rh03/i6fgBFBeyd uAUNs0Xjs+nkJyZL8qfqJCw6aLU= X-Mailgun-Sending-Ip: 104.130.122.26 X-Mailgun-Sid: WyI1MzIzYiIsICJsaW51eC1hcm0tbXNtQHZnZXIua2VybmVsLm9yZyIsICJiZTllNGEiXQ== Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by mxa.mailgun.org with ESMTP id 5eb422cd.7f1bd6757dc0-smtp-out-n05; Thu, 07 May 2020 15:01:33 -0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 82369C3855D; Thu, 7 May 2020 15:01:31 +0000 (UTC) Received: from akashast-linux.qualcomm.com (blr-c-bdr-fw-01_GlobalNAT_AllZones-Outside.qualcomm.com [103.229.19.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: akashast) by smtp.codeaurora.org (Postfix) with ESMTPSA id 21879C49493; Thu, 7 May 2020 15:01:26 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 21879C49493 Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=none smtp.mailfrom=akashast@codeaurora.org From: Akash Asthana To: robh+dt@kernel.org, gregkh@linuxfoundation.org Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, mgautam@codeaurora.org, rojay@codeaurora.org, skakit@codeaurora.org, mka@chromium.org, Akash Asthana Subject: [PATCH V6 3/3] dt-bindings: serial: Add binding for UART pin swap Date: Thu, 7 May 2020 20:30:47 +0530 Message-Id: <1588863647-17240-4-git-send-email-akashast@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1588863647-17240-1-git-send-email-akashast@codeaurora.org> References: <1588863647-17240-1-git-send-email-akashast@codeaurora.org> Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Add documentation to support RX-TX & CTS-RTS GPIO pin swap in HW. Signed-off-by: Akash Asthana --- Documentation/devicetree/bindings/serial/serial.yaml | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/Documentation/devicetree/bindings/serial/serial.yaml b/Documentation/devicetree/bindings/serial/serial.yaml index 53204d9..e657dd6 100644 --- a/Documentation/devicetree/bindings/serial/serial.yaml +++ b/Documentation/devicetree/bindings/serial/serial.yaml @@ -67,6 +67,12 @@ properties: (wired and enabled by pinmux configuration). This depends on both the UART hardware and the board wiring. + rx-tx-swap: + description: RX and TX pins are swapped. + + cts-rts-swap: + description: CTS and RTS pins are swapped. + if: required: - uart-has-rtscts