From patchwork Tue Jun 19 19:44:49 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nishanth Menon X-Patchwork-Id: 931816 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=quarantine dis=none) header.from=ti.com Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=ti.com header.i=@ti.com header.b="rqqX9AAf"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 419JN94k7xz9s2R for ; Wed, 20 Jun 2018 05:45:29 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S967180AbeFSTpC (ORCPT ); Tue, 19 Jun 2018 15:45:02 -0400 Received: from lelnx194.ext.ti.com ([198.47.27.80]:43187 "EHLO lelnx194.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S967155AbeFSTpA (ORCPT ); Tue, 19 Jun 2018 15:45:00 -0400 Received: from dflxv15.itg.ti.com ([128.247.5.124]) by lelnx194.ext.ti.com (8.15.1/8.15.1) with ESMTP id w5JJipRf014314; Tue, 19 Jun 2018 14:44:51 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1529437491; bh=4LXr0DVRCDkKLUyBSgG4DH5jxrflB26EN2tpItlLUU0=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=rqqX9AAfDxohKD440pkYM2mlh/j2ABQ7Io/mMQxCONMsg7LXFIuQNLi2wqIfbOcud gAmxwvPekucGfvnWAPcgcBA6ju+0/L2vkqQh8B9HdaSX8Xe+GBaf7hkebsRhi3o8Y1 9PwyTM7CaZR/YxZsXuhbW5zYrLp5ndq9K05mb6Pw= Received: from DLEE102.ent.ti.com (dlee102.ent.ti.com [157.170.170.32]) by dflxv15.itg.ti.com (8.14.3/8.13.8) with ESMTP id w5JJiovK010689; Tue, 19 Jun 2018 14:44:50 -0500 Received: from DLEE106.ent.ti.com (157.170.170.36) by DLEE102.ent.ti.com (157.170.170.32) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1466.3; Tue, 19 Jun 2018 14:44:50 -0500 Received: from dlep33.itg.ti.com (157.170.170.75) by DLEE106.ent.ti.com (157.170.170.36) with Microsoft SMTP Server (version=TLS1_0, cipher=TLS_RSA_WITH_AES_256_CBC_SHA) id 15.1.1466.3 via Frontend Transport; Tue, 19 Jun 2018 14:44:50 -0500 Received: from localhost (ileax41-snat.itg.ti.com [10.172.224.153]) by dlep33.itg.ti.com (8.14.3/8.13.8) with ESMTP id w5JJio8G027308; Tue, 19 Jun 2018 14:44:50 -0500 From: Nishanth Menon To: Mark Rutland , Rob Herring , Greg Kroah-Hartman CC: , , , Nishanth Menon , Tony Lindgren , Tero Kristo , Vignesh R , Jiri Slaby , Sekhar Nori Subject: [PATCH 1/2] dt-bindings: serial: 8250_omap: Add compatible for AM654 UART controller Date: Tue, 19 Jun 2018 14:44:49 -0500 Message-ID: <20180619194450.6353-2-nm@ti.com> X-Mailer: git-send-email 2.15.1 In-Reply-To: <20180619194450.6353-1-nm@ti.com> References: <20180619194450.6353-1-nm@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org AM654 uses a UART controller that is only partially compatible with existing 8250 UART. UART DMA integration is substantially different and even a match against standard 8250 or omap4 would result in non-working UART once DMA is enabled by default. Introduce a specific compatible to help build up the differences in follow on patches. Cc: Sekhar Nori Cc: Vignesh R Signed-off-by: Nishanth Menon Acked-by: Rob Herring --- Changes since RFC: * DT binding has been split out as it's own patch and commit message elaborated RFC: https://patchwork.kernel.org/patch/10447641/ Documentation/devicetree/bindings/serial/omap_serial.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/serial/omap_serial.txt b/Documentation/devicetree/bindings/serial/omap_serial.txt index 4b0f05adb228..c35d5ece1156 100644 --- a/Documentation/devicetree/bindings/serial/omap_serial.txt +++ b/Documentation/devicetree/bindings/serial/omap_serial.txt @@ -1,6 +1,7 @@ OMAP UART controller Required properties: +- compatible : should be "ti,am654-uart" for AM654 controllers - compatible : should be "ti,omap2-uart" for OMAP2 controllers - compatible : should be "ti,omap3-uart" for OMAP3 controllers - compatible : should be "ti,omap4-uart" for OMAP4 controllers