From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 E02E019DF62; Mon, 21 Jul 2025 15:04:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753110247; cv=none; b=gNIMJ8qvvazmSCNkuUYz7lsqlnsKAhr4oEpcsvUSenlvDnIlZ4agaAzwfzHNkCB9vBEoPIazx5ifiofegav9Dxk0uhu9jJOSdbz8iAjgyCDYRR4JSrIUO+IzXQs8/A2LYXUQgF7wEsjdxjY7ZNozpAPpJ8C2uU3QnaxEkhfQZNU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753110247; c=relaxed/simple; bh=FLrgL/2CQHP/2rDn4k8Q9+fTGuPnmR1UdDZyhqyII30=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=QlQRzt6APcux+IH9lHWutwGhAOw8Ssat6xcjCyeOCzfHB3L7ANadSRLv47SlZi/WYRpak3RDWMTOpSyAEAZbZnlyArCouQ82VGM1cRYR02NwHLKkAw9Yn+QUZZd0aidDkyIrCbEURZzD9dZ+DVZnozemBD9DnHT7y4c8P2D0xUQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=DsNd9AKH; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="DsNd9AKH" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2F7ADC4CEED; Mon, 21 Jul 2025 15:04:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1753110246; bh=FLrgL/2CQHP/2rDn4k8Q9+fTGuPnmR1UdDZyhqyII30=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=DsNd9AKHEl+5WkV7edBAvBM4qUfQGgPFJ/0UEUsVYqkGNqOYXvpZHTqQ0xrOpYHbw WMAFA8BP4vQxeWzIGwNtCBT3/VqQMvFIJ2XqTFKX12vGbfx8PFPUnTnonzso5vT9VM Hmu+g5eCLqDXj4O8P4gj3OLbmhs/h0wx4BLpwErG/EBzWL9FA8XBxtVoemQg2PmSC1 dFazGm3Yn93j6sykZ6I+sJ6Qq4WGi6M1vsWn9Zn7lfrW7PlIRFsmqK+fTW83UcTcDn dUL9vjL0rB92sheTqOMpWuBVC/T5RIUBG46TjUiOQmlSq+ucs86spaxg+txZmV2c5D gFHHEAmmPB9Kg== Date: Mon, 21 Jul 2025 10:04:05 -0500 From: "Rob Herring (Arm)" To: Zixian Zeng Cc: Alexandre Ghiti , Mark Brown , Palmer Dabbelt , linux-spi@vger.kernel.org, Longbin Li , Pratyush Yadav , Conor Dooley , Krzysztof Kozlowski , linux-riscv@lists.infradead.org, Conor Dooley , sophgo@lists.linux.dev, Chen Wang , linux-mtd@lists.infradead.org, Richard Weinberger , Vignesh Raghavendra , Inochi Amaoto , Tudor Ambarus , Albert Ou , linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Miquel Raynal , Michael Walle , Paul Walmsley Subject: Re: [PATCH v4 1/4] spi: dt-bindings: spi-sg2044-nor: Change SOPHGO SG2042 Message-ID: <175311024481.634831.11395873009603964562.robh@kernel.org> References: <20250720-sfg-spifmc-v4-0-033188ad801e@gmail.com> <20250720-sfg-spifmc-v4-1-033188ad801e@gmail.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=us-ascii Content-Disposition: inline In-Reply-To: <20250720-sfg-spifmc-v4-1-033188ad801e@gmail.com> On Sun, 20 Jul 2025 16:31:43 +0800, Zixian Zeng wrote: > With further testing, directly using the spi-sg2044-nor driver on SG2042 > does not work. SG2042 is found to lack full compatibility with SG2044. > SG2044 has OPT register and it's necessary to write but SG2042 does not. > Due to other possible hardware detail differences, it is better > to bind SG2042 independently. > > Fixes: 8450f1e0d3d0 ("spi: dt-bindings: spi-sg2044-nor: Add SOPHGO SG2042") > Signed-off-by: Zixian Zeng > --- > Documentation/devicetree/bindings/spi/spi-sg2044-nor.yaml | 9 +++------ > 1 file changed, 3 insertions(+), 6 deletions(-) > Acked-by: Rob Herring (Arm)