From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id EEC4BC4332F for ; Fri, 3 Nov 2023 14:52:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Content-Type: List-Subscribe:List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id: In-Reply-To:MIME-Version:References:Message-ID:Subject:Cc:To:From:Date: Reply-To:Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date :Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=PNKKnrOIyMvx+GiDD214Bk3mTF75JKj2hC9mX1OcZxc=; b=k9RDP7+4Ldjk2+NSPiK/0+JbRQ 81OHymgZO+z/Aw9fxXbhbbMWqcA+0I2G6upNtaAMRDZh+16Rma4zOEF6oPQEw1SYGqxK7G6UL8S4L xhyZpWeRAKFzMohvtCpfHbEIBUFYUoDGmodFtQMXu5g8aXVBL8CI9mEYZKinpPP5t9mKUJ/mhsglr cJfQ9tPHcBIFsrrHH4tZU7Tl2POgZ7Iv4brqhQZ7nR76ORBuZP2QoIwUtVXWnxt7EV+gPC1kgsdF5 o7kFFh69mBwDvAjlA9GGKTOD96Zi1lUH0tjGoQZ6O0C7K7375b/92NzJiTgoqV8DKjTFs1L6VQBZA OLRtQrZQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qyvWs-00Bcn9-00; Fri, 03 Nov 2023 14:52:10 +0000 Received: from sin.source.kernel.org ([2604:1380:40e1:4800::1]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qyvWp-00Bclu-14 for linux-arm-kernel@lists.infradead.org; Fri, 03 Nov 2023 14:52:08 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sin.source.kernel.org (Postfix) with ESMTP id 3EBC4CE2298; Fri, 3 Nov 2023 14:52:05 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8B2EBC433C8; Fri, 3 Nov 2023 14:52:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1699023124; bh=4bHaoYOS4B9eXzOUxbBMi4UFw6BQf47ZMRIEzv/wmGk=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=H/hhCnHgvk0wtt4RmBnnVGvhZ2iYuOefHbOYtZ+3xY+pocEj9jM8jbswuiz4f8sM9 0HpfMQTmAc18HxjUgLduXc3eSh7JTVyDL1OvR7m/gSsWcI2VdJUd7EdVNY4w/SdgLj GAyk3x6O9spbV+q0EdkVG7HU8Md5a4TgMxTYZ7MarmdUQmXPBxm8+jImSh6AonzGMn 4MsH7LHsUTi5khe9KkkYyD8bu2yOw2XyR+3sF++K6rtGxMJRAjFzqsVGsVNKziZXmj OSlSVhk5fIYKWMwLhKU6rnq5mlo/WWtRlBHpylWmme/Fx8/at520Z2eKx8T9a7Irla EnxIPPzaFifxg== Date: Fri, 3 Nov 2023 14:51:59 +0000 From: Conor Dooley To: Ben Wolsieffer Cc: linux-spi@vger.kernel.org, devicetree@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Mark Brown , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Maxime Coquelin , Alexandre Torgue , Alain Volmat , Erwan Leray , Fabrice Gasnier Subject: Re: [PATCH v2 3/5] dt-bindings: spi: add stm32f7-spi compatible Message-ID: <20231103-appendix-emission-952777ef7c4f@spud> References: <20231102193722.3042245-1-ben.wolsieffer@hefring.com> <20231102193722.3042245-4-ben.wolsieffer@hefring.com> <20231103-recognize-unwashed-b8f1a83fe851@spud> MIME-Version: 1.0 In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231103_075207_548288_98E127D2 X-CRM114-Status: GOOD ( 17.51 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============7146640416574208298==" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org --===============7146640416574208298== Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="tTMlnMyASVIYvi+Q" Content-Disposition: inline --tTMlnMyASVIYvi+Q Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Nov 03, 2023 at 09:29:12AM -0400, Ben Wolsieffer wrote: > Hi Conor, >=20 > On Fri, Nov 03, 2023 at 12:50:53PM +0000, Conor Dooley wrote: > > On Thu, Nov 02, 2023 at 03:37:20PM -0400, Ben Wolsieffer wrote: > > A wider range of supported word sizes and some additional buffers, > > implies that the F4 could be used as a fallback compatible. Does the > > register map change incompatibly in the process of widening the FIFOs or > > something like that? >=20 > Yes, the F4 has a single bit to select 8 or 16 bit word size, while the > F7 uses four bits to select an arbitrary word size from 4 to 16 bits. > This series supports the packing mode, to allow sending two <=3D8 bit > words with a single write to the FIFO, but even if we didn't want to > support this feature, the F7 would require setting the FRXTH bit (not > present in the F4) when using <=3D8 bit word sizes. Oke. Acked-by: Conor Dooley Cheers, Conor. --tTMlnMyASVIYvi+Q Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQRh246EGq/8RLhDjO14tDGHoIJi0gUCZUUJCwAKCRB4tDGHoIJi 0uZNAQDaM89wVrUomad2qB/scux1aTsV0078OLOhPo1oBRJU6QEAreeGymSr+62N 2wgkvW+8zNqVcQ2CZILtHMikzYCVbwI= =lzfn -----END PGP SIGNATURE----- --tTMlnMyASVIYvi+Q-- --===============7146640416574208298== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel --===============7146640416574208298==--