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=-18.2 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_IN_DEF_DKIM_WL 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 058DDC433ED for ; Tue, 13 Apr 2021 21:24:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D14FB61242 for ; Tue, 13 Apr 2021 21:24:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231977AbhDMVYg (ORCPT ); Tue, 13 Apr 2021 17:24:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36830 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230346AbhDMVYg (ORCPT ); Tue, 13 Apr 2021 17:24:36 -0400 Received: from mail-pj1-x102d.google.com (mail-pj1-x102d.google.com [IPv6:2607:f8b0:4864:20::102d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E6B7EC061574 for ; Tue, 13 Apr 2021 14:24:15 -0700 (PDT) Received: by mail-pj1-x102d.google.com with SMTP id u14-20020a17090a1f0eb029014e38011b09so4853685pja.5 for ; Tue, 13 Apr 2021 14:24:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=Wrolm9Uka0WdrJmXFojnSsyQPM9UJRCVltTGkkPQseY=; b=qwu/z3wTrpp5MMaWa7l3cQz4itDaaPHW3JyggVWUDu3sP+rMVEPc7SnPa4fTdHWXWk US2+KYZ4o7q6l9qGxwduHbyi5n0IeuW62U3Suibh8TnTfgI0IZOCKOb9aLASA7+pEW42 ggG9UjpBKBRfvFNiusX16PXpetzhMCieq36otySqrUqD+GMZ/kZDZuDSLhtyi9NRA3xF L1zea2cz+qTwKpPP6B/UmmalWKtvDjg5VOLuMzhJrRpIhlXV/3gIYO6Tkf5eHNOh6T5o zMcmKvlsqba+0XKpDOephk9dxALnyh2Lf0h0AxtruUZOc6HscSq5KEQj8eDCNlh4mFyU iwEg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=Wrolm9Uka0WdrJmXFojnSsyQPM9UJRCVltTGkkPQseY=; b=eGyeiiP0rpv+rEufO4PBfpMNnI1v/q8ocalODNSz5BN67tvgCn4ANEOGJgoeYw3k8b ZJ6zwbook5cy3YhQ8H3DtvQoSdMy1HlQpzIWTEhwFx+UvnK6wybrGpl9cIIvjif1wKag 76pJXWRCFNX8UoGMok0w2GFF0CAEIg629JAlefa8oDwCZYHxLBYMHmOyhwF3C/LmhjCk pQ49Yf4g0+BXrqRZTYt6g/sDfcx4ritHbAgvfIazFwvxy8BH5LfAuQ7f8+mkV3sKG5xo PqAKoJxNSZBGGvWFS71kUQD+CuVcLRTXpxXfvzNoFG0x9ysRMDdHgGV+dwP7cTHJevci nryQ== X-Gm-Message-State: AOAM531hF8r+9wNBEUucp2Nx6PnvxGYkEg4B8a93iD6QxyrkuPxG2YWZ /4qnwTTgTysJi1BavuYMAt4mt10zuxGFsSQ7YMrlBg== X-Google-Smtp-Source: ABdhPJxORhjMtdH97VTzoYhToT5Sfmca+N6V6zwa7pA3FPVL1L6OGFpc6sJYDeZN7H6NBHUzbo9M08UkzVohS29TCfc= X-Received: by 2002:a17:90a:ff02:: with SMTP id ce2mr2072837pjb.217.1618349055195; Tue, 13 Apr 2021 14:24:15 -0700 (PDT) MIME-Version: 1.0 References: <20210224191720.7724-1-jae.hyun.yoo@linux.intel.com> <20210224191720.7724-4-jae.hyun.yoo@linux.intel.com> In-Reply-To: <20210224191720.7724-4-jae.hyun.yoo@linux.intel.com> From: Brendan Higgins Date: Tue, 13 Apr 2021 14:24:04 -0700 Message-ID: Subject: Re: [PATCH v4 3/4] i2c: aspeed: add buffer mode transfer support To: Jae Hyun Yoo Cc: Wolfram Sang , Benjamin Herrenschmidt , Joel Stanley , Rob Herring , Mark Rutland , Andrew Jeffery , Tao Ren , Cedric Le Goater , linux-i2c@vger.kernel.org, devicetree , linux-aspeed , OpenBMC Maillist Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org On Wed, Feb 24, 2021 at 11:04 AM Jae Hyun Yoo wrote: > > This driver uses byte mode that makes lots of interrupt calls > which isn't good for performance and it makes the driver very > timing sensitive. To improve performance of the driver, this commit > adds buffer mode transfer support which uses I2C SRAM buffer > instead of using a single byte buffer. > > Signed-off-by: Jae Hyun Yoo > Tested-by: Tao Ren Reviewed-by: Brendan Higgins