From patchwork Sun Mar 28 15:43:05 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Martin Devera X-Patchwork-Id: 410722 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=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham 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 DF590C433C1 for ; Sun, 28 Mar 2021 15:46:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A962661974 for ; Sun, 28 Mar 2021 15:46:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230411AbhC1PqF (ORCPT ); Sun, 28 Mar 2021 11:46:05 -0400 Received: from smtp.wifcom.cz ([85.207.3.150]:36824 "EHLO smtp.wifcom.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230247AbhC1Ppp (ORCPT ); Sun, 28 Mar 2021 11:45:45 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=eaxlabs.cz; s=mail; h=References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From; bh=vpikJD29gomwC8ZCLMcKJZFaNKhjOnwb++xunGrRQQY=; b=FjRxjHgQ/JU0splXWne3o9kBFZy2G/z0jd6nmLeR6XSOjhL04ELAZ2IuF++sSM8g8+6wdfvhIg0D5Ob0hV4qL9oLgvrchpXVWi3dhQy1m3o+SUEM8pro7Pt+jHEgGkEumcvg47lccuzQzrr5dkkV/rQcpEOunnzQ8uzZJ+B4ibk=; From: Martin Devera To: linux-kernel@vger.kernel.org Cc: Martin Devera , Greg Kroah-Hartman , Rob Herring , Maxime Coquelin , Alexandre Torgue , Jiri Slaby , Le Ray , fabrice.gasnier@foss.st.com, linux-serial@vger.kernel.org, devicetree@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org Subject: [PATCH v8 1/2] dt-bindings: serial: Add rx-tx-swap to stm32-usart Date: Sun, 28 Mar 2021 17:43:05 +0200 Message-Id: <20210328154306.22674-1-devik@eaxlabs.cz> X-Mailer: git-send-email 2.11.0 In-Reply-To: References: X-Antivirus-Scanner: Clean mail though you should still use an Antivirus X-Wif-ss: -1.1 (-) Precedence: bulk List-ID: X-Mailing-List: linux-serial@vger.kernel.org Add new rx-tx-swap property to allow for RX & TX pin swapping. Signed-off-by: Martin Devera Acked-by: Fabrice Gasnier Reviewed-by: Rob Herring --- v8: - rebase to the latest tty-next v7: - fix yaml linter warning v6: - add version changelog v5: - yaml fixes based on Rob Herring comments - add serial.yaml reference - move compatible from 'then' to 'if' v3: - don't allow rx-tx-swap for st,stm32-uart (suggested by Fabrice Gasnier) v2: - change st,swap to rx-tx-swap (suggested by Rob Herring) --- .../devicetree/bindings/serial/st,stm32-uart.yaml | 29 ++++++++++++++-------- 1 file changed, 19 insertions(+), 10 deletions(-) --- .../devicetree/bindings/serial/st,stm32-uart.yaml | 29 ++++++++++++++-------- 1 file changed, 19 insertions(+), 10 deletions(-) diff --git a/Documentation/devicetree/bindings/serial/st,stm32-uart.yaml b/Documentation/devicetree/bindings/serial/st,stm32-uart.yaml index 8631678283f9..126e07566965 100644 --- a/Documentation/devicetree/bindings/serial/st,stm32-uart.yaml +++ b/Documentation/devicetree/bindings/serial/st,stm32-uart.yaml @@ -9,9 +9,6 @@ maintainers: title: STMicroelectronics STM32 USART bindings -allOf: - - $ref: rs485.yaml - properties: compatible: enum: @@ -40,6 +37,8 @@ properties: uart-has-rtscts: true + rx-tx-swap: true + dmas: minItems: 1 maxItems: 2 @@ -66,13 +65,23 @@ properties: linux,rs485-enabled-at-boot-time: true rs485-rx-during-tx: true -if: - required: - - st,hw-flow-ctrl -then: - properties: - cts-gpios: false - rts-gpios: false +allOf: + - $ref: rs485.yaml# + - $ref: serial.yaml# + - if: + required: + - st,hw-flow-ctrl + then: + properties: + cts-gpios: false + rts-gpios: false + - if: + properties: + compatible: + const: st,stm32-uart + then: + properties: + rx-tx-swap: false required: - compatible