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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,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 DA8A4C2BA2B for ; Sun, 12 Apr 2020 18:16:22 +0000 (UTC) X-Greylist: delayed 75 seconds by postgrey-1.34 at mail.kernel.org; Sun, 12 Apr 2020 18:16:22 UTC Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="tKZgTR5H" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org ADC35206C3 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-serial-owner@vger.kernel.org Received: from vger.kernel.org (unknown [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id ADC35206C3 for ; Sun, 12 Apr 2020 18:16:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727489AbgDLSPG (ORCPT ); Sun, 12 Apr 2020 14:15:06 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.18]:41434 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727233AbgDLSPF (ORCPT ); Sun, 12 Apr 2020 14:15:05 -0400 X-Greylist: delayed 313 seconds by postgrey-1.27 at vger.kernel.org; Sun, 12 Apr 2020 14:15:05 EDT Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C03DAC0A88B8; Sun, 12 Apr 2020 11:09:58 -0700 (PDT) Received: from localhost.localdomain (unknown [157.50.0.25]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id E80E4206E9; Sun, 12 Apr 2020 18:09:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1586714998; bh=BUxT5IqaNvB9TgDMR7VN/qHcX2xgt0z3BHmRoAVi8ac=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=tKZgTR5H9n/+i9uvei5y+H4cpl7/P9LBuQV/mbHcvLwYjnhiUvBzUgKziqmln0BMf WMtSvMLCAXeyZryxOSU5YTztOHiOm75PVTsi6C8yxESQTxhFRuDVfYk9Uf0/68c/DM B+ujRUPVFg89VKeOKHTM6wPiy+vAQohRPyOCk3b0= From: mani@kernel.org To: gregkh@linuxfoundation.org, robh+dt@kernel.org, mcoquelin.stm32@gmail.com, alexandre.torgue@st.com Cc: linux-serial@vger.kernel.org, devicetree@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Manivannan Sadhasivam Subject: [PATCH 1/2] dt-bindings: serial: Add binding for software flow control in STM32 UART Date: Sun, 12 Apr 2020 23:39:22 +0530 Message-Id: <20200412180923.30774-2-mani@kernel.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200412180923.30774-1-mani@kernel.org> References: <20200412180923.30774-1-mani@kernel.org> Sender: linux-serial-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-serial@vger.kernel.org From: Manivannan Sadhasivam Add devicetree binding for software flow control in STM32 UART controller. While at it, let's also fix one schema error reported by `make dtbs_check`. Signed-off-by: Manivannan Sadhasivam --- Rob: Still the `dtbs_check` validation fails. This is due to the `linux,rs485-enabled-at-boot-time` property. I don't have any idea on how to fix this. .../devicetree/bindings/serial/st,stm32-uart.yaml | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/serial/st,stm32-uart.yaml b/Documentation/devicetree/bindings/serial/st,stm32-uart.yaml index 238c44192d31..ea5797a1b403 100644 --- a/Documentation/devicetree/bindings/serial/st,stm32-uart.yaml +++ b/Documentation/devicetree/bindings/serial/st,stm32-uart.yaml @@ -38,13 +38,26 @@ properties: description: enable hardware flow control $ref: /schemas/types.yaml#/definitions/flag + st,sw-flow-ctrl: + description: enable software flow control + $ref: /schemas/types.yaml#/definitions/flag + + rts-gpios: + description: RTS pin used if st,sw-flow-ctrl is true + maxItems: 1 + + cts-gpios: + description: CTS pin used if st,sw-flow-ctrl is true + maxItems: 1 + dmas: minItems: 1 maxItems: 2 dma-names: items: - enum: [ rx, tx ] + - const: rx + - const: tx minItems: 1 maxItems: 2 -- 2.17.1