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 9C401179A3 for ; Mon, 8 Dec 2025 08:33:41 +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=1765182826; cv=none; b=eC+O/1PpqC7/yCxGmznI/+89o8h/ALkyZReWGWgcJTv+6M+c247Xn9h7yTP+x6xcSltNA+lDV5O3Oq1FV+Gk0RMb/SiEVHmmAjV6Nj/Xhz5UslERQMh95035cRka2kdn8ao6+MfvRys3Z/Oo1bPMivbxPjeNb1rgViFaH3O16NQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765182826; c=relaxed/simple; bh=RX7mxueZg8iuSmvrZ1O6GvNB5P6C4zF/+3N1wIaPWHU=; h=From:To:Cc:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=VXFfMBUFAAqIkwtBIIJztrb27Ge77fRK4YnpY7gaZNt83iRnWjMVYWAgQgOVdE4djk2UEzwF5C6Bbt/D4QkRrRhX6IcHijnmYEi2Juh9PA9HSk9/3YvuVCqu7v38QGIPksm4LpvXDH7sC6Pbe4DiXLGZxWrUiVE7vl/lyCbfwpk= 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=cPLHSFUT; 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="cPLHSFUT" Received: from smtpout-01.galae.net (smtpout-01.galae.net [212.83.139.233]) by smtpout-02.galae.net (Postfix) with ESMTPS id 804F41A201C; Mon, 8 Dec 2025 08:33:34 +0000 (UTC) Received: from mail.galae.net (mail.galae.net [212.83.136.155]) by smtpout-01.galae.net (Postfix) with ESMTPS id 5757260707; Mon, 8 Dec 2025 08:33:34 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon) with ESMTPSA id 328BD102F0D51; Mon, 8 Dec 2025 09:33:29 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=dkim; t=1765182813; h=from:subject:date:message-id:to:cc:mime-version:content-type: content-transfer-encoding:in-reply-to:references; bh=RX7mxueZg8iuSmvrZ1O6GvNB5P6C4zF/+3N1wIaPWHU=; b=cPLHSFUTe+rrK4PEEjeQBAjYLwmw90z0RRUAq6M0ChKXiwgYC1VVxrzioF7P29GSjBTqyI maux5kh2NDZhuGuAEaI6JEt4w40QB5smua7wndI7TVNaAF+hzXn4HiBkA3L9QoriIpSLNR opIEjT3Zbp/Za1TPe1h+Bwlk0CW1YbGvEtuF9lV50yorng0mMSto+7NTrK7FtMTVcf6ijB ckgjx57M0238bzO8Qt57LhxQ7aGS3Y6Q1tJ5lBgl8SmlxGCxLaEVaQW0uieV2U7MhYi9+C J4nhFWtjs7M+SaAlIJk6dxxx6ZUo8FErrhxq4J9JoljAvcI5KjE6d6tx0TCGdQ== From: Miquel Raynal To: Ziyang Huang Cc: richard@nod.at, vigneshr@ti.com, tudor.ambarus@linaro.org, mmkurbanov@salutedevices.com, george.moussalem@outlook.com, linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] Revert "mtd: spinand: esmt: fix id code for F50D1G41LB" In-Reply-To: (Ziyang Huang's message of "Tue, 2 Dec 2025 23:05:56 +0800") References: User-Agent: mu4e 1.12.7; emacs 30.2 Date: Mon, 08 Dec 2025 09:33:28 +0100 Message-ID: <87wm2x74pz.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 On 02/12/2025 at 23:05:56 +08, Ziyang Huang wrote: > This reverts commit dd26402642a0899fde59ea6b0852fad3d799b4cc. > > The issue George met is due to the limit of QPIC, not the issue of the > flash chip. > > QPIC only supports 4 bytes ID. So the fifth byte is always 0. > > If we use spi-gpio, the fifth byte can be read correctly. > > Signed-off-by: Ziyang Huang > --- So how do we solve that? Is there anything than can be done on the qpic side? Thanks, Miqu=C3=A8l