From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 A24B743BDDA; Fri, 14 Aug 2026 09:47:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786700848; cv=none; b=eEu04uveYrmpoAOO1vAM6unyU8EtSLmVhUXUQsEPVZThlDJ1jywxP9SMYkVv9QaPRGVj5c5mOYBtksxhx4qzFOVOd1tjdigTHX3K87TQ6CdT+9uzM00294ZXsNjBG+YgYz7BEjzBogFhf4aBdasdW0W9/mZtkW7gRFtiek+Y1yE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786700848; c=relaxed/simple; bh=gIE0LA9qDv9D0e16yPeWQF66GtF1oZC+TmU+kYtAQa0=; h=Mime-Version:Content-Type:Date:Message-Id:To:Subject:Cc:From: References:In-Reply-To; b=uTQwLssJZDd6ayi17Bz0Mhm1YjsIIoVnxrXHVNJmijtn9UIv+ZPcdvBn5o6RvFg0VDVR5eP4tARKT1yx2P4pFH55Gxf/KCvC/1sOqshxw5bhe3TcITwKTqDSKIJvDkAm0AvlQ5nlnfsU2dtKSYpWl/Qgjfg5x3/Pd74eY4rRKNM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=BSVa2eoB; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="BSVa2eoB" Received: by smtp.kernel.org (Postfix) with UTF8SMTPSA id B7ED01F000E9; Fri, 14 Aug 2026 09:47:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1786700847; bh=gIE0LA9qDv9D0e16yPeWQF66GtF1oZC+TmU+kYtAQa0=; h=Date:To:Subject:Cc:From:References:In-Reply-To; b=BSVa2eoB4ZF2wn6vEaCgd1kI7TdQ2p6H+99CPGZzgcHkn71GOJkXz3H367C7qfsrE ulLZJW/LUkkKo8wmwsY8+0cjjCtK7ZFKUoCdEFm9X3grM7VFLyWpsVD+eLWIe+sBrv Uyrpy4LiAwFEYWqi57+y6t9HDVyKjIo4AMJ2G2ssZtX7OOayCLxao21SPM9KIYPFnb 7IFsFZRiZ26Z1hTOt1yjdeztIVVaWibQpKRmUiEKw8jUH6liWcHxfpADLRJwpUgfXy HTWZWyYL3SHa6564F5GQc3wI4VB2XYIcvXkLZMhM+dVMbaEu5eJ3Q2+TGtEQv9mT8T 2Qjb9BIY3gvcQ== Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 Content-Type: multipart/signed; boundary=4582fa21fa9f4a58a2099248de0c44f86946b288ad21dcf2d82951a18dd3; micalg=pgp-sha384; protocol="application/pgp-signature" Date: Fri, 14 Aug 2026 11:47:23 +0200 Message-Id: To: "Miquel Raynal" , "Pratyush Yadav" , "Takahiro Kuwano" , "Richard Weinberger" , "Vignesh Raghavendra" , "Nicolas Ferre" , "Alexandre Belloni" , "Claudiu Beznea" , "Jonathan Corbet" , "Shuah Khan" Subject: Re: [PATCH v3 12/23] mtd: spi-nor: winbond: Add support for W25Q51RV-Q/N Cc: "Steam Lin" , "Hsin-Yi Wang" , "Thomas Petazzoni" , , , , From: "Michael Walle" X-Mailer: aerc 0.20.0 References: <20260813-winbond-v7-1-spi-nor-rv-addition-v3-0-b637cf120d5c@bootlin.com> <20260813-winbond-v7-1-spi-nor-rv-addition-v3-12-b637cf120d5c@bootlin.com> In-Reply-To: <20260813-winbond-v7-1-spi-nor-rv-addition-v3-12-b637cf120d5c@bootlin.com> --4582fa21fa9f4a58a2099248de0c44f86946b288ad21dcf2d82951a18dd3 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=UTF-8 On Thu Aug 13, 2026 at 5:19 PM CEST, Miquel Raynal wrote: > There is an ID collision with the chip of same density from the JV > family. Both chips are very similar in practice, it is mostly a matter > of electrical differences (mostly power consumption being lower). > > As a significant difference, RV chips identify themselves as supporting > the new SFDP (rev F) field which forces an alternate write SR2 > opcode (0x31). > > Signed-off-by: Miquel Raynal Reviewed-by: Michael Walle --4582fa21fa9f4a58a2099248de0c44f86946b288ad21dcf2d82951a18dd3 Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iKgEABMJADAWIQTIVZIcOo5wfU/AngkSJzzuPgIf+AUCan7kKxIcbXdhbGxlQGtl cm5lbC5vcmcACgkQEic87j4CH/iLTAF+JV+xGNTl07VQ2YUPXB1GqMoJKLRIUorA bymmUGYSjAiGj1zf7O/SkHZKOqdjVnU2AYD919lqC3dlMcZjOU8bzIK+uGftP2xm RMjlqd9p6UL1ZTSKk0lveRjOMmOwcHc94Vo= =cWBF -----END PGP SIGNATURE----- --4582fa21fa9f4a58a2099248de0c44f86946b288ad21dcf2d82951a18dd3--