From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 42237606E65D for ; Fri, 13 Nov 2026 17:19:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=zA9g4vgy; dkim=pass (2048-bit key, unprotected) header.d=dolcini.it header.i=@dolcini.it header.a=rsa-sha256 header.s=default header.b=gQDmr+DC DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: 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-Unsubscribe-Post:List-Owner; bh=lLRe7OQ+TSz40sIuSGn/k/GXxs4txoePPfp4Cfqlpuo=; b=zA9g4vgySzvYMdz4J57tdlpBgv /sQRGgcrEivrohZwtP5TtUtAN+HaplqAJXT4OAQLNWtLTKVEvF4BkksRjXOyJ2JmApMrtjQn9qAkL 8KJvA8K5Ch54TDV2gfXR38TpqI/XIv4Cz8lIT4E51j7ApB8CxCLhHYicO8fdFX9f3mDvHbixtqsk0 8qgAUQV0M7zi2Hg9AjQSvU/UIRYcxwDNHgzlRsIxE4JXax579IAECg0OJhGfFWtSxhmjjAXuBtutn qziz1aJCKNZ2bX/Gr4r58G2Ow0nYQ1xiW65rEqP0+vKQv3RsaFH+3/dZaHvqydguU4quWT9Ml1RD/ t3ZaTBTw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.100.1 #2 (Red Hat Linux)) id 1xRuw8-0000000Dj0q-1kmN; Fri, 13 Nov 2026 17:19:40 +0000 Received: from mail11.truemail.it ([217.194.8.81]) by bombadil.infradead.org with esmtps (Exim 4.100.1 #2 (Red Hat Linux)) id 1xRuw5-0000000Dizs-0Pkf for linux-arm-kernel@lists.infradead.org; Fri, 13 Nov 2026 17:19:39 +0000 Received: from francesco-nb (xcpe-178-82-167-143.dyn.res.sunrise.net [178.82.167.143]) by mail11.truemail.it (Postfix) with ESMTPA id 65197227A9; Fri, 13 Nov 2026 18:19:31 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=dolcini.it; s=default; t=1794590371; bh=lLRe7OQ+TSz40sIuSGn/k/GXxs4txoePPfp4Cfqlpuo=; h=From:To:Subject; b=gQDmr+DC0PzJkqKQHMverOutbN4CiJgTneAPacT/pLTZHq5gsyc/bXjMWCh0cuOdS +97MfdA+S4dGKJsNtaQ2OaGv/vPHQY8/M95adOp6rSVVnV7u0V2ew+v7uEatUltIQi C7CfUEHS/Kfe3kOYY7OJRmSDLxWONNCg2QBXRgXLPmqxBhlLNzC9xyMf6l8eLNfzKe 1EFOzKOsQJkAOkqN/y3BGWSButhtaATx2KY0SqTsA6pcmNHvq0ib97TEpRqRs72KiQ EjRoqRINtyScFSLfgHyWYAnNNXZKM7CYnsyBJnvNzcFqAtXj0gGy5i0K1tpO7B8d+9 LGLlF3PkarAng== Date: Fri, 13 Nov 2026 18:19:27 +0100 From: Francesco Dolcini To: Frank Li Cc: Francesco Dolcini , Francesco Dolcini , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Frank Li , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , linux-bsp@toradex.com, devicetree@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v1 01/11] arm64: dts: freescale: imx8mm-verdin: Add SPI alias Message-ID: <20261113171927.GA762258@francesco-nb> References: <20261112150236.164850-1-francesco@dolcini.it> <20261112150236.164850-2-francesco@dolcini.it> <20261113073135.GA8515@francesco-nb> X-Archived-By: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20261113_091938_053954_85BE76E6 X-CRM114-Status: GOOD ( 25.38 ) X-Spam-Score: -2.1 (--) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" X-Spam-Status: No, score=-15.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 On Fri, Nov 13, 2026 at 10:11:11AM -0600, Frank Li wrote: > On Fri, Nov 13, 2026 at 08:31:35AM +0100, Francesco Dolcini wrote: > > Hello Frank, > > > > On Thu, Nov 12, 2026 at 09:41:31AM -0600, Frank Li wrote: > > > On Thu, Nov 12, 2026 at 04:02:23PM +0100, Francesco Dolcini wrote: > > > > From: Francesco Dolcini > > > > > > > > The Verdin family pinout defines the SoM interfaces and their > > > > numbering, SPI_1 being the SPI bus available to the carrier board, > > > > implemented by ecspi2 on Verdin iMX8MM. > > > > > > > > imx8mm.dtsi numbers ecspi2 as spi1, so the Linux bus number in sysfs > > > > and the spidev name do not match the Verdin interface. Add a spi0 > > > > alias in the SoM dtsi and delete the inherited spi1, so ecspi2 is > > > > bus 0, zero-based with SPI_1 being spi0, and carries a single alias. > > > > ecspi3, internal to the SoM with the CAN controller and the TPM, keeps > > > > the spi2 alias inherited from the SoC. > > > > > > > > Signed-off-by: Francesco Dolcini > > > > --- > > > > arch/arm64/boot/dts/freescale/imx8mm-verdin.dtsi | 2 ++ > > > > 1 file changed, 2 insertions(+) > > > > > > > > diff --git a/arch/arm64/boot/dts/freescale/imx8mm-verdin.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-verdin.dtsi > > > > index 1ac9d000d415..0369803a4d46 100644 > > > > --- a/arch/arm64/boot/dts/freescale/imx8mm-verdin.dtsi > > > > +++ b/arch/arm64/boot/dts/freescale/imx8mm-verdin.dtsi > > > > @@ -16,6 +16,8 @@ chosen { > > > > aliases { > > > > rtc0 = &rtc_i2c; > > > > rtc1 = &snvs_rtc; > > > > + spi0 = &ecspi2; > > > > + /delete-property/ spi1; > > > > > > Can you avoid delete property for new platform? > > > > Unfortunately this is needed. > > > > The included imx8mm.dtsi has > > > > spi1 = &ecspi2; > > Create patch move aliase to each boards' dts from imx8mm.dtsi, which is > board feature, not soc features. Please see the linked thread [0][1]. It's not a viable option. In addition, I can do this for my boards (Toradex), how do I know what I have to move for boards I do not know? I can't do that. The only way would be to duplicate the whole aliases on *every* board. Unfortunately your proposal does not work. Francesco