Received: by 2002:a05:6a10:a0d1:0:0:0:0 with SMTP id j17csp1946342pxa; Mon, 3 Aug 2020 03:27:52 -0700 (PDT) X-Google-Smtp-Source: ABdhPJweNGEB5vvRkFkXRoLk9PYN8uGe2xDHGQ0xJWAW89FsZSyB555rZV9GajXAgULfnKgtAyeX X-Received: by 2002:a17:907:7255:: with SMTP id ds21mr16772328ejc.44.1596450472356; Mon, 03 Aug 2020 03:27:52 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1596450472; cv=none; d=google.com; s=arc-20160816; b=KHb8oaKsHhIa1s/vfHsPQa1G/Rgz37Ii1itO/nBA4NEMSEsVGgdq5xRg2FoGUtdcTF hZeaTPA0SReGvykP1XKydc7BY1lp1qFubyt4yxJrXm6SHqsmvANNMTAdarRqU5/YmcAm C8Hb5hXa5PSpqv3+YUAD3+qa3e5E8lI47N0Q54QItUTV/jLaplUgPa27rNAQtgJA1rhl czver0tIH4AKUhHUH5DKXPxmQFLh1gd0jSJ3DsIz7bkWQntabmiBs1yIN4/XkeZhQ8jz +ZoqvCHXmk/914TY6eZckFeMog+QgujUb/OXrx0ufG/ytEZktGV42Om3IV9ST3JTvgsU aaZQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:organization:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date:ironport-sdr:ironport-sdr; bh=P8Q+X2pCM1uysltJyfojzzrERQ4PdOI6nWV4ILWnvLc=; b=CXxRjkWrfcUNW5FE/zwKiyYN81XFj69YRfr7lZcYxxc4V2RQPy1x+ktrIeac5kWSTP oE/kMDJECcWjlbcSgIqskyrIyDNmQiVCun5nsgtj7chYz+E8gPOPT3sqLND4wVecrnpu MEgvQi7/EfFSmlI4zm+NiARSSbTF/N2EYFNSggfKxZrgmH8zkReXHhDVo5gpL24En7Gg uHf34cOpzBBVwX4hYqLjl3UdJdKuXesBLMHQ2WzsaQUthzoZZv7P5G0TekwpwM/iQf22 qaHhLAQWsRb17IV6GeMbMXI+iRJdNXPsfnYXE9TN2kMK7la1DHxD1K99o77/faC4B3kK KVWg== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=intel.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id r4si9541499edo.611.2020.08.03.03.27.30; Mon, 03 Aug 2020 03:27:52 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726291AbgHCK1Q (ORCPT + 99 others); Mon, 3 Aug 2020 06:27:16 -0400 Received: from mga01.intel.com ([192.55.52.88]:10481 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725933AbgHCK1P (ORCPT ); Mon, 3 Aug 2020 06:27:15 -0400 IronPort-SDR: 9jwBHqog9KLWoOggEYh55zbnv8MF7AKv248tvbzaM2mkJ3KH4QQoVC0tNEpQHG75rOKh4kXceE +3/hBebNutSg== X-IronPort-AV: E=McAfee;i="6000,8403,9701"; a="170177126" X-IronPort-AV: E=Sophos;i="5.75,429,1589266800"; d="scan'208";a="170177126" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Aug 2020 03:27:15 -0700 IronPort-SDR: H9lYg74O1xebpaI6b6EZdRmjDAQPlOpwirNhgyZ2s0cdTHeBTHCu2D1Fq/0HrZRTKlhci/g4ng B8Ov6ZIjMLCg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.75,429,1589266800"; d="scan'208";a="396009806" Received: from lahna.fi.intel.com (HELO lahna) ([10.237.72.163]) by fmsmga001.fm.intel.com with SMTP; 03 Aug 2020 03:27:11 -0700 Received: by lahna (sSMTP sendmail emulation); Mon, 03 Aug 2020 13:27:11 +0300 Date: Mon, 3 Aug 2020 13:27:11 +0300 From: Mika Westerberg To: Richard Hughes Cc: Daniel Gutson , Tudor Ambarus , Miquel Raynal , Richard Weinberger , Vignesh Raghavendra , Boris Brezillon , linux-mtd@lists.infradead.org, linux-kernel , Alex Bazhaniuk , Arnd Bergmann , Greg Kroah-Hartman Subject: Re: [PATCH] Module argument to control whether intel-spi-pci attempts to turn the SPI flash chip writeable Message-ID: <20200803102711.GK1375436@lahna.fi.intel.com> References: <20200724212853.11601-1-daniel.gutson@eclypsium.com> <20200803095720.GC1375436@lahna.fi.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Aug 03, 2020 at 11:18:12AM +0100, Richard Hughes wrote: > On Mon, 3 Aug 2020 at 10:57, Mika Westerberg > wrote: > > I think instead of this we should simply make it so that the driver > > never tries to make the chip writable. > > I think this is a good idea, but I wasn't sure if it was an acceptable > behaviour change. Should the driver still try to set BCR_WPD when > writing an image (i.e. defer the setting of write enable until later), > or just not set the BCR register at all? I think your last comment was > the latter, but wanted to check. I would say not set it at all. I think it was (my) mistake to set it in the first place.