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=-2.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no 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 CB1FBC54EEB for ; Sun, 22 Mar 2020 19:37:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A52962070A for ; Sun, 22 Mar 2020 19:37:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1584905863; bh=EYj1ZjIKsB8UScswc5qhZWW0Mbv6Cjij0kOFbxjDnfc=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=b0JCBqdSpNCImM4P8gOuBCH7gxx4Kl+umcGC4+H33l5c1r2eprTjd+Msiga7yBiW1 3K7K073UNOkfAM5pjxNIrzYt49PEpElO1gC74E9K9dTrFsDJWOlwIaPoTD1o7loaI+ 7biI0To7PKemrCN3e2KNzDYjBW3j34byCZw5b4z4= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726741AbgCVThl (ORCPT ); Sun, 22 Mar 2020 15:37:41 -0400 Received: from mail.kernel.org ([198.145.29.99]:46978 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726502AbgCVThl (ORCPT ); Sun, 22 Mar 2020 15:37:41 -0400 Received: from localhost (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 3FEBB2070A; Sun, 22 Mar 2020 19:37:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1584905860; bh=EYj1ZjIKsB8UScswc5qhZWW0Mbv6Cjij0kOFbxjDnfc=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=1q81UiRrdoT3EWkQSrFE/8Oxf5fsbuOdedj+OpfPoWQfNboDFhUWxv7q5Cmew0r3I lscAWsJuoUPQ+YbVM+cjiOtP9jryH8U4n1X2CSx2Rq587hM0J3ux2/ETMi761OGcF9 ik1/p1oamSU1FIdpifNjRfJIxwijWCSJDdA+nlQs= Date: Sun, 22 Mar 2020 15:37:39 -0400 From: Sasha Levin To: Mark Brown Cc: linux-kernel@vger.kernel.org, stable@vger.kernel.org, Vignesh Raghavendra , linux-spi@vger.kernel.org Subject: Re: [PATCH AUTOSEL 5.5 01/41] spi: spi-omap2-mcspi: Handle DMA size restriction on AM65x Message-ID: <20200322193739.GO4189@sasha-vm> References: <20200316023319.749-1-sashal@kernel.org> <20200316115057.GB5010@sirena.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline In-Reply-To: <20200316115057.GB5010@sirena.org.uk> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org On Mon, Mar 16, 2020 at 11:50:57AM +0000, Mark Brown wrote: >On Sun, Mar 15, 2020 at 10:32:39PM -0400, Sasha Levin wrote: >> From: Vignesh Raghavendra >> >> [ Upstream commit e4e8276a4f652be2c7bb783a0155d4adb85f5d7d ] >> >> On AM654, McSPI can only support 4K - 1 bytes per transfer when DMA is >> enabled. Therefore populate master->max_transfer_size callback to >> inform client drivers of this restriction when DMA channels are >> available. > >As ever this only provides information to other drivers which may be >buggy. I'll drop it, thanks! -- Thanks, Sasha