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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 19673C19F2B for ; Thu, 4 Aug 2022 09:43:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239414AbiHDJn2 (ORCPT ); Thu, 4 Aug 2022 05:43:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59730 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239394AbiHDJnO (ORCPT ); Thu, 4 Aug 2022 05:43:14 -0400 Received: from mail-ed1-x533.google.com (mail-ed1-x533.google.com [IPv6:2a00:1450:4864:20::533]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D8BFD67177 for ; Thu, 4 Aug 2022 02:43:12 -0700 (PDT) Received: by mail-ed1-x533.google.com with SMTP id t5so4811255edc.11 for ; Thu, 04 Aug 2022 02:43:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sifive.com; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=r46KFAl4TfFrC5l4SGRajq+tNuzO0BzQHbXD1x0Z/2w=; b=S6+kVL8ePQUIYSD3wWZf+6Pbn/YJcO8W1A3nf+MjPxiPTw1s3u49W3+ELbyG6s/xl7 c+yoWpfXqGIP5xtVPCeYjZVKiKbnre0b1aTWbTRKJq4WUY/OGH8D6jNg805M3ZiIE+2J i7dNgji2dSjRo21/WVTamuNS2A/Iaquww5t1XJ1aME458WiKttystKbGaEvWGEBR1drW RLh7a0RPsL8OihN6VhlR5QwGOQEDuOSXxeVLX906Bewb8hDX/ANliqvPOuaB8sCVaceZ UV76VYf/UNl84XpUjtvHOITS2tE2zQzBMMuxmEwZONFwxaXoMF8SZWRp7WulkBrtI92F hh1Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=r46KFAl4TfFrC5l4SGRajq+tNuzO0BzQHbXD1x0Z/2w=; b=hidOLforwgqE9Srffn9fhFhyuAA1xxzWoRuxXIwrY98iEWUJNnQTRFvqvT46YMdNyE SUrd93qieoKFcyhf0n8BD4XHMtzm97PKeUGF/9/Zki94V1owHtKHvskNO2+NrflLJpVr Nc1RJNW7iK/J4QUqNjNdNvKlLDyVXyBnKX4wfE+Q02/Vj5Yb4yt5Nm+G5swECZk2VOlu cJGtYLb70FssZzMUX0SPbDkE7eVjrYUnWzdHmpbkHKSBH2rgVZQabV2wDrCCxKUnR9lX j2GaIYZake0KeqwOKvqa2HXif1QCkoCO7X8Wv+ERtJ2QN7KARONeobR+UaSvXNC0aGlA hjeA== X-Gm-Message-State: ACgBeo0/UIBckB6Sg/kq0kj5phNyvfaMMkxZ1YbQUa8ObQFD0ZXy8dp/ W1+veaZrp5EvMkSmGTc9XhCKWIjvehszeTsaVv/CYA== X-Google-Smtp-Source: AA6agR5afw8s52J5k8ANiGBZ2AJghNnge3OAhhFOjfwdj/q7FYBbe8lc2YZ8qHHjL6k9udoJs2UxHbldej8aHlNUgIU= X-Received: by 2002:a05:6402:293:b0:43d:3936:66b0 with SMTP id l19-20020a056402029300b0043d393666b0mr1134525edv.404.1659606191429; Thu, 04 Aug 2022 02:43:11 -0700 (PDT) MIME-Version: 1.0 References: <20220802175755.6530-1-sudip.mukherjee@sifive.com> <20220803185600.76rwp4o3itb2e2dn@mobilestation> In-Reply-To: <20220803185600.76rwp4o3itb2e2dn@mobilestation> From: Sudip Mukherjee Date: Thu, 4 Aug 2022 10:43:00 +0100 Message-ID: Subject: Re: [PATCH 00/11] Add support for enhanced SPI for Designware SPI controllers To: Serge Semin Cc: Mark Brown , Rob Herring , Krzysztof Kozlowski , Greentime Hu , Jude Onyenegecha , William Salmon , Adnan Chowdhury , Ben Dooks , linux-spi@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Jeegar Lakhani Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Aug 3, 2022 at 7:56 PM Serge Semin wrote: > > Hi Sudip > > On Tue, Aug 02, 2022 at 06:57:44PM +0100, Sudip Mukherjee wrote: > > Some Synopsys SSI controllers support enhanced SPI which includes > > Dual mode, Quad mode and Octal mode. DWC_ssi includes clock stretching > > feature in enhanced SPI modes which can be used to prevent FIFO underflow > > and overflow conditions while transmitting or receiving the data respectively. > > This is only tested on controller version 1.03a. > > > > Ben Dooks (1): > > spi: dw-apb-ssi: add generic 1.03a version > > Thanks for the patchset. It's always welcome to have a new > functionality support. I'll have it reviewed on the next week. Thanks Sergey. I will then wait for your review before sending a v2 with the changes Mark has suggested. -- Regards Sudip