From patchwork Mon Jul 9 09:43:04 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Esben Haabendal X-Patchwork-Id: 941179 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="dIXNFI/z"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 41PL4p1Ddlz9s1B for ; Mon, 9 Jul 2018 19:43:54 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752914AbeGIJne (ORCPT ); Mon, 9 Jul 2018 05:43:34 -0400 Received: from mail-lf0-f66.google.com ([209.85.215.66]:38140 "EHLO mail-lf0-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932699AbeGIJnV (ORCPT ); Mon, 9 Jul 2018 05:43:21 -0400 Received: by mail-lf0-f66.google.com with SMTP id a4-v6so14686497lff.5; Mon, 09 Jul 2018 02:43:20 -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=1koQvgLpOHKSo2UbGrEiF0QLYvVVtdV9mxihlxpb/Nw=; b=dIXNFI/z+xlQuMy7LKtYylJ4lEM7z2Iy7LOAKH9+KgV3iFAmWPVSaD1wC+cWW9F4qK TfPmBLRngm+CULDO/pwAva1Uh3C/86/q4Q1sNGRvLQfxyzSIFJPK/vBcQTnGxC2uirxv cgipnJEfZYynpUQxfV1yqgDJXDf/KOXThZj07ndoB9TUVqHcDHJS7Oj0vaSgNutmXWQv qayxOO3cKQHxLPoLzEqMcSIkv1rbVoYIoRHU3yz661TGl+hTCxQWGD+CQLGr5vULmJN3 NgT2eGRzxCf62pjQri8MrXJxm9g+kLi0Wk9wGSF4lZjOQj5JHGcGc7Crikia93nayA6S gaRw== 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=1koQvgLpOHKSo2UbGrEiF0QLYvVVtdV9mxihlxpb/Nw=; b=C+CrZcyYjrOLsTudI5CGS11CayjaR5JZubaiKxSH0JtozwQC6N7tR87oaWZHdHNGKl m23qCYK3Pt2FpfIJ0ScNmDvDjYDmgSsygg9gH9B/Dq/Nin257VApId4FWRBHT36zd9+X grQCYv88jGmWS/QMZAFZKhaG8YaoZlsLuxdc2m+jQWgkiILTVpZhFIQC+p55PZkrx/8m CoNx4CX6RE2UbB40B/dXCU7y39YrnZYLL4442F4pzZW9LYgioBOVnMYUgpOTs1tM9C8e C8wAUvcsAsBV9ChyLyU9nYLy5bVdo31XBGXCIz9rhTTlMOJEqlbJHk/naGgzWZHb0EcI O5Xw== X-Gm-Message-State: APt69E0qvUuOw0HE3sZq2E8ZRivwfYOGVg9duay308NTalVUWLx5ulnt Tak9JUSpmdqyvdbyRcHTZRQ4fukTTvE= X-Google-Smtp-Source: AAOMgpcfJgib2kY0uvp14/OTB54wyBGroPzAACsvRISUpRshtNAyqsMW7STi5yxvKaKHdPr5BZ9Fdg== X-Received: by 2002:a19:ef13:: with SMTP id n19-v6mr14571206lfh.48.1531129399648; Mon, 09 Jul 2018 02:43:19 -0700 (PDT) Received: from localhost (87-57-30-174-static.dk.customer.tdc.net. [87.57.30.174]) by smtp.gmail.com with ESMTPSA id q6-v6sm3396357lfk.31.2018.07.09.02.43.18 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Mon, 09 Jul 2018 02:43:19 -0700 (PDT) From: Esben Haabendal To: linux-i2c@vger.kernel.org Cc: Wolfram Sang , =?utf-8?q?Uwe_Kleine-?= =?utf-8?b?S8O2bmln?= , Rob Herring , Mark Rutland , Yuan Yao , Esben Haabendal , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 4/4] arm: dts: ls1021a: Enable I2C DMA support Date: Mon, 9 Jul 2018 11:43:04 +0200 Message-Id: <20180709094304.8814-5-esben.haabendal@gmail.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20180709094304.8814-1-esben.haabendal@gmail.com> References: <20180709094304.8814-1-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"; };