From patchwork Wed May 23 09:56:23 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Esben Haabendal X-Patchwork-Id: 918918 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@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=linux-i2c-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="kWejAFa8"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 40rSbL72WGz9s16 for ; Wed, 23 May 2018 19:56:46 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932180AbeEWJ4o (ORCPT ); Wed, 23 May 2018 05:56:44 -0400 Received: from mail-wr0-f194.google.com ([209.85.128.194]:36615 "EHLO mail-wr0-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932315AbeEWJ4h (ORCPT ); Wed, 23 May 2018 05:56:37 -0400 Received: by mail-wr0-f194.google.com with SMTP id k5-v6so13236172wrn.3; Wed, 23 May 2018 02:56:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references; bh=Ra2OYN6MSerXmY+5i4HQLMDJSyYuDcCi4MDX2iD+mnI=; b=kWejAFa8tMIveqMycOJTAiJZUcl8WVeGKtZ36fX5nuCFEvdq91ReKtjjhEcPTSE2Cy xmBJjGnXKwj252uT7Ka6/MuzAAziX5sLsNuFcT+s/ygWKUqcFUtRrL+CByqLIuidffpM LRo3RY0JJ83ahxJdkZzbHzE9mcabGZjUZHPXhefjQkTUNnNzLpgBhRTEvQwgY0vs77Eq bBHTW3Y4BwCCmrwHcannsFwyP8TTLHanOY1zXnLSQKEyStgtxGuq3SpIeB6MVWuIL0Ir 1CK+3POMZEn6AVwWa0ASIyNmJ9keaXFZgdXmjkH0jxzm3HDeNDKfxfmMCWmHah1wVVyJ +iGA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:from:to:cc:subject:date:message-id :in-reply-to:references; bh=Ra2OYN6MSerXmY+5i4HQLMDJSyYuDcCi4MDX2iD+mnI=; b=PphgIXrpDGc0Y31kTRl7KTyRWlU24JEFHR5icHrG9vhkPZ/KXjNQGfxWpKjErCIHmZ hqqb2vCuqly8OQZyBqNB76d+KxG7rRoGvRl2ZUa+Ke4hkMcQpIcHTmkLJpjquBCmklVc YTSbW9b2x4Y+359jDHd4ITEXoossBnrbb4cyAJ+8ovN4EiowrKFM7x2KxzqsMantK2Tf BJDXUC1b1G6Y3zqW23v3nY5mubAEHEjnzyybQ6oZIrgrjqdd9iY+/IiKUOiy3LelWeby gkkehJzxJBnCP77oG/GhsyMT3YvT5kYW9FdNl8/F3xKR6Vh/f5ZXCS06iB6xx8aof2m1 5rIw== X-Gm-Message-State: ALKqPweGBphieC1wMbFFTVCXvhzf/hJFeVH9LIuAbOVwhW9QQ42hZOJ/ 1fd22ZDb1jD85uXWkA5Y+F6IQqdULsk= X-Google-Smtp-Source: AB8JxZr9UMFZ5vyadxrsxjxE941czDTYtpSicvEIS4hZx08aaOt295qEu8dsZgoqKByl1o8U15UExw== X-Received: by 2002:a19:c48f:: with SMTP id u137-v6mr1228729lff.2.1527069395684; Wed, 23 May 2018 02:56:35 -0700 (PDT) Received: from localhost ([87.54.42.112]) by smtp.gmail.com with ESMTPSA id f22-v6sm3333475ljc.50.2018.05.23.02.56.34 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Wed, 23 May 2018 02:56:35 -0700 (PDT) From: Esben Haabendal To: linux-i2c@vger.kernel.org Cc: Esben Haabendal , Rob Herring , Mark Rutland , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 4/4] arm: dts: ls1021a: Enable I2C DMA support Date: Wed, 23 May 2018 11:56:23 +0200 Message-Id: <20180523095623.3347-5-esben.haabendal@gmail.com> X-Mailer: git-send-email 2.17.0 In-Reply-To: <20180523095623.3347-1-esben.haabendal@gmail.com> References: <20180523095623.3347-1-esben.haabendal@gmail.com> Sender: linux-i2c-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org From: Esben Haabendal Gives substantial performance improvement for transfers larger than 16 bytes (DMA_THRESHOLD). Smaller transfers are unaffected. Signed-off-by: Esben Haabendal --- arch/arm/boot/dts/ls1021a.dtsi | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/arm/boot/dts/ls1021a.dtsi b/arch/arm/boot/dts/ls1021a.dtsi index c55d479971cc..1e5640701c65 100644 --- a/arch/arm/boot/dts/ls1021a.dtsi +++ b/arch/arm/boot/dts/ls1021a.dtsi @@ -363,6 +363,8 @@ interrupts = ; clock-names = "i2c"; clocks = <&clockgen 4 1>; + dma-names = "tx", "rx"; + dmas = <&edma0 1 39>, <&edma0 1 38>; status = "disabled"; }; @@ -374,6 +376,8 @@ interrupts = ; clock-names = "i2c"; clocks = <&clockgen 4 1>; + dma-names = "tx", "rx"; + dmas = <&edma0 1 37>, <&edma0 1 36>; status = "disabled"; }; @@ -385,6 +389,8 @@ interrupts = ; clock-names = "i2c"; clocks = <&clockgen 4 1>; + dma-names = "tx", "rx"; + dmas = <&edma0 1 35>, <&edma0 1 34>; status = "disabled"; };