From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtpout-02.galae.net (smtpout-02.galae.net [185.246.84.56]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 677E2374A18 for ; Wed, 22 Jul 2026 15:00:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.246.84.56 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784732419; cv=none; b=unVpD0eSREyDlMZM8fF9VwehmeZDr8UaKOOF47vmzD0406LJWDulMd6nefbON6pAPcV7DG927z66cKh/OfhAUEDP2uN8bgJP0YC15RkN9d4rSAX30XXJ+Y7VUHJmbG3AqKH/Inv5UTlRhQu1F4sq61DdNR07mMxRJbJ11uAcxkg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784732419; c=relaxed/simple; bh=E9jxUvFbMtaDWA3lrKzi8PhcSsFSPCrspXZjFxfbJpA=; h=From:To:Cc:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=eZJT2g2WM2UnnBsP+kvDiaPk7UIpcI5G31YwfI9kqTi62WkiudRqnSB6wrMXhtfbvdyMvhhtGGWWQoSrLUsrWoEgNK0UVRfTAG1YfVv3KbOKkLNp2Q8v/eilFjoJfTyCtB0oKayK/nv0n+f5jt/9DNiQzJApax/pGesB1/FP8CY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com; spf=pass smtp.mailfrom=bootlin.com; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b=cYeiGCVh; arc=none smtp.client-ip=185.246.84.56 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bootlin.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="cYeiGCVh" Received: from smtpout-01.galae.net (smtpout-01.galae.net [212.83.139.233]) by smtpout-02.galae.net (Postfix) with ESMTPS id 63A501A1172; Wed, 22 Jul 2026 15:00:14 +0000 (UTC) Received: from mail.galae.net (mail.galae.net [212.83.136.155]) by smtpout-01.galae.net (Postfix) with ESMTPS id 3098560388; Wed, 22 Jul 2026 15:00:14 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon) with ESMTPSA id 00E7811BD1E93; Wed, 22 Jul 2026 17:00:08 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=dkim; t=1784732413; h=from:subject:date:message-id:to:cc:mime-version:content-type: content-transfer-encoding:in-reply-to:references; bh=E9jxUvFbMtaDWA3lrKzi8PhcSsFSPCrspXZjFxfbJpA=; b=cYeiGCVhS5wYenf5domvS5iXPMS8LKhh4KXCu4S+fGuLEW29TyqJwIEkgjXPU8qMZc7E8i gC9+RNitmNw781+T5/vJh8rWk7yuTV11OQT+Z+a+r3psCsupTatBjAi+MFICen38DMiFdF io2IspbRrt/ltDqbAwv8iysDOQ2aQcbXJVYzJtxIu1gPD2MHmbAGoXuyvjVQf+Hz23y/tx YG8RV+F9MR90E0zaoYJOjg4mnF2e1heXG2pQdgrd2463gcO5rDAyhlEcTLgKDhDTt66+dB ae5rPyRFJ4LHOa3R0obQUoZXfvXrIfbvOsckse49DIRQ0ezYk0wvI1+qC3F0Kg== From: Miquel Raynal To: "Michael Walle" Cc: "Pratyush Yadav" , "Takahiro Kuwano" , "Richard Weinberger" , "Vignesh Raghavendra" , "Thomas Petazzoni" , "Steam Lin" , , Subject: Re: [PATCH 11/30] mtd: spi-nor: winbond: W25Q32JV-Q/N: Fill locking information In-Reply-To: (Michael Walle's message of "Mon, 06 Jul 2026 16:21:54 +0200") References: <20260529-winbond-v7-1-spi-nor-jv-cleanup-v1-0-87e5d3122244@bootlin.com> <20260529-winbond-v7-1-spi-nor-jv-cleanup-v1-11-87e5d3122244@bootlin.com> User-Agent: mu4e 1.12.7; emacs 30.2 Date: Wed, 22 Jul 2026 17:00:08 +0200 Message-ID: <87ldb3hxxj.fsf@bootlin.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Last-TLS-Session-Version: TLSv1.3 > The original W25Q32 doesn't have the CMP bit. I didn't found any datasheet without the CMP bit, but now that I know these chips had a new batch (with mandatory SFDP support) starting from 2016, whereas the datasheets I looked at were from 2017, it is possible that I couldn't find an old enough one. Which brings me to a more important question: can we anyway enable CMP anyway? I contributed several patches for that already (merged). I guess if the CMP bit is not present, the old software does not use it. If it tries to use it, normally the verification should fail. Thanks, Miqu=C3=A8l