From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=217.194.8.81 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1792661151; b=MCVDCVifg0fj3/26Usjzs7frecb+8SUrSHOEP3mga/6uNFUJ5Nsegsm/kCwtGeEmp6Pv Kdm+6xpCEa+lyw4BmXULYjf29sRrp+TYpJY8jnvwTg7TIolgim+63Z8MZy8XUQEQuo6PL dgPu10lwj5fwNFj4gQboPjtwKmFxfgNTrQifApXwUOsyCs7yhqLx+Tmw8eLfb5sHEeuWU +sNDo5tZ+LmT1bMrVKjYj/QN3viKySh8PhES7a9CT3qhdHAKfpnSdFguyO+H7DWfwU9Ks TZWiUUSM3nC2HUELb52Dd9I8H6j/msuwmNgtbq8k3tPlfYJHSxSyNJPMYW/mwhlNtcA== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1792661151; h=DMARC-Filter:Received:DKIM-Signature:Date:From:To:Cc:Subject: Message-ID:References:MIME-Version:Content-Type:Content-Disposition: In-Reply-To; bh=P0yLNScvKloWayj6m2JS8KQwpfW0PaSmZECjKePOOcQ=; b=YlzEfgMsGp8vGvsmLADHm+fuRFeOPg8fv9krgE56GNAuIFl374XizKeG3We8yDorH8xi 9ADSwbT2ieDj+ojBk3vzwpBEqxN3u8PYmpIn4PaW/U3w+18f9/x30wQ3Nxt/ZWEP0sw/0 yiRxGkySLzO5Uh/HPNhayn0ynrgN+Hyv72ElAomB4J5idX2vJlhWDldbQTYLMtAnz0WOp VDTxTSL2ztpN577fRPWlizA5XjP8WQadstLuIQJT3ODfYU0G2NAOW0vDpunB99r99qRlR 1SYzuk8xqKjwbd+EWx9ca7UsBvKwIt6RIFv9oDzbxuwBjxlSx4zbl2PmX0+zIUvGaBQ== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=dolcini.it; spf=pass smtp.mailfrom=dolcini.it; dkim=pass header.d=dolcini.it header.i=@dolcini.it header.a=rsa-sha256 header.s=default header.b=m3R8cqC9; arc=none smtp.remote-ip=217.194.8.81 Received: from mail11.truemail.it (mail11.truemail.it [217.194.8.81]) (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 E3A98606A31D; Thu, 22 Oct 2026 09:25:43 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org E3A98606A31D Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=dolcini.it Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=dolcini.it Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=dolcini.it header.i=@dolcini.it header.a=rsa-sha256 header.s=default header.b=m3R8cqC9 Received: from francesco-nb (93-49-2-63.ip317.fastwebnet.it [93.49.2.63]) by mail11.truemail.it (Postfix) with ESMTPA id ABE0A1F921; Thu, 22 Oct 2026 11:25:40 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=dolcini.it; s=default; t=1792661141; bh=P0yLNScvKloWayj6m2JS8KQwpfW0PaSmZECjKePOOcQ=; h=From:To:Subject; b=m3R8cqC9bN5rVAb3hFAteUVOrvqJuH6oDlJJpvVXlBd2+MauylWg+f/aqhz9A0QcA d+OsiaxgschYB0IDOSnkv8s1mse4K9lQTg6WbjqzTuO37lEq+/gleMONdXV5NKwTxC T4Jenk+3pBQoOrN466ELQl4fWydTW2uz9dr2iS2ICkQD72X7+GYQX5m03cFwPgrbV7 jjSqCQjxDERBCC4WDQdiyb4Nzia6QVjizaKvZx5iQQMW6eZEhhee4o6n0jOwAkxeNO YVX3LOAYYYNq90P7evM2r98BcmO910JKpFCoR9EcsG3jGHQ0jX4v9byTr3zuV1wb1p mWEi80kUDDNDg== Date: Thu, 22 Oct 2026 11:25:36 +0200 From: Francesco Dolcini To: Christoph Niedermaier Cc: Marek Vasut , Francesco Dolcini , "linux-arm-kernel@lists.infradead.org" , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Frank Li , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , "devicetree@vger.kernel.org" , "imx@lists.linux.dev" , kernel , "linux-kernel@vger.kernel.org" Subject: Re: [PATCH 1/2] ARM: dts: imx6ull-dhcor-maveo-box: Remove unused SPI device Message-ID: <20261022092536.GA232648@francesco-nb> References: <20261021134435.17350-1-cniedermaier@dh-electronics.com> <1073daf0-3676-4123-9ca4-c182ea5883a3@nabladev.com> <20261021183704.GA1116319@francesco-nb> <71d725ee47804205826bdda322fdfdb6@dh-electronics.com> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <71d725ee47804205826bdda322fdfdb6@dh-electronics.com> Hello Christoph, On Thu, Oct 22, 2026 at 09:12:12AM +0000, Christoph Niedermaier wrote: > From: Marek Vasut > Sent: Wednesday, October 21, 2026 8:56 PM > > On 10/21/26 8:37 PM, Francesco Dolcini wrote: > >> On Wed, Oct 21, 2026 at 07:19:30PM +0200, Marek Vasut wrote: > >>> On 10/21/26 3:44 PM, Christoph Niedermaier wrote: [...] > >>>> --- a/arch/arm/boot/dts/nxp/imx/imx6ull-dhcor-maveo-box.dts > >>>> +++ b/arch/arm/boot/dts/nxp/imx/imx6ull-dhcor-maveo-box.dts > >>>> @@ -60,14 +60,6 @@ &ecspi4 { > >>>> pinctrl-0 = <&pinctrl_ecspi4>; > >>>> pinctrl-names = "default"; > >>>> status = "okay"; > >>> > >>> Drop "status = "okay"" too , since this controller will be unused ? > >> > >> you can instantiate a new device on the SPI bus from userspace. up to > >> you, but if I was a user I would appreciate to have it enabled. > > Good point -- Christoph, is this the (use)case here , can the user do that? > > I don't think that's the case, since there isn't currently an SPI device > connected to this interface. Nevertheless, I'd be interested to know how > to instantiate a new device from user space. Documentation/spi/instantiating-devices.rst Francesco