From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=170.10.129.124 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793106478; b=O+A6jSysES1Ve9YyeDt5JOBfrRKWPL2u6I0GS8M+BWPnwQZFWVx+ZgCENVONx99Ep5hE VnZcOQIwN/dtON9cVtHl2CzJ7rg+C+YgXdHhGxqkrlYrnXT3D9pghJB1iZENCC02YTb7F tu8xX7SbY2/ndumaq9p6ysAuzISs7sknBj0VPYTiryl1A8ljwYD12Fw4wx1+U12Pf+RP7 9rVK5sAcw4C2lCvMkRN3zLTYciGjO48fO028HNgxnA3bmoi7GkXRWt3PR6EwRfiAcwaP3 sgL5P2NtNnvkw8z1KWN/GEcQCqE77DQXJ+0lz/svt6+m5TwQYjYWpZxoThPqwkvdeGQ== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793106478; h=DMARC-Filter:DKIM-Signature:Received:X-MC-Unique: X-Mimecast-MFC-AGG-ID:Received:DKIM-Signature:X-Google-DKIM-Signature: X-Forwarded-Encrypted:X-Gm-Message-State:X-Gm-Gg:X-Received: X-Received:Received:Date:From:To:Cc:Subject:Message-ID:References: MIME-Version:Content-Type:Content-Disposition:In-Reply-To; bh=ATvxORBZny1s5fn8dz62jBylTwd8vo+fNFXQREv2wUs=; b=kPMS7Badgbo97lixHLPREpDkSneZk2i6E5po63jy9L5RlO+L0kdZjqZ/Y1zi42clIkAw 8qBOxhYeobM8Wzpksdewe038LB8SMUNb6MKBrxkRMmNj/Y4fE8JNRMLCMYftM6cp/hKPK F8RFpPpFsjymebvBIvGjfGUV/ODvEJphKgZuIvTCEEwzwSlFnGxW5mpW4d8J0+vyY4PSo gcnbKMBtOuSGJnDRgQ+z1D48gO2RyakLxPJSBCj7VrJ9Lg7xM4IOxa8BAMM4EwN1FbGM/ KuCw1dFAnWR96fCh03VDC/1mYV53a8FAANfAMtmzoDod+lwqRG9V5tk6pPQc2TvelmA== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=M0w5XfPW; dkim=pass header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=google header.b="Ax/SxHfU"; arc=none smtp.remote-ip=170.10.129.124 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (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 42EE3606A320 for ; Tue, 27 Oct 2026 13:07:57 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 42EE3606A320 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key, unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=M0w5XfPW; dkim=pass (2048-bit key, unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=google header.b=Ax/SxHfU DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1793106476; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=ATvxORBZny1s5fn8dz62jBylTwd8vo+fNFXQREv2wUs=; b=M0w5XfPW+ZmTMhEPb6FCKQ1Q34kjll69ocHvw0cJuJzcvPS/IzctI2GCB05/6zytzd/doz 6taBV6gtqS4IyEJBDQGZsPTX5m/fLi/gbtkOErtG0U3Nx2BvN9puywL/con4MRCY4wTEbc hkcO96m4sItxxnEcvChh6K9HkgQnUEA= Received: from mail-wm1-f69.google.com (mail-wm1-f69.google.com [209.85.128.69]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-237-p1vZeQXwOVivyzgu_L-tdw-1; Tue, 27 Oct 2026 09:07:54 -0400 X-MC-Unique: p1vZeQXwOVivyzgu_L-tdw-1 X-Mimecast-MFC-AGG-ID: p1vZeQXwOVivyzgu_L-tdw_1793106474 Received: by mail-wm1-f69.google.com with SMTP id 5b1f17b1804b1-4a4654add56so27308305e9.2 for ; Tue, 27 Oct 2026 06:07:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=google; t=1793106473; x=1793711273; darn=vger.kernel.org; h=in-reply-to:content-disposition:content-type:mime-version :references:message-id:subject:cc:to:from:date:from:to:cc:subject :date:message-id:reply-to:content-type; bh=ATvxORBZny1s5fn8dz62jBylTwd8vo+fNFXQREv2wUs=; b=Ax/SxHfU+rxKBDrThiC/wb22anNnHwug7J1tyRAynUtzxitEOc4gOdZKYXicyGMvMY XG43sCHkU8i+NoJdA1ic2sl8oi5WaZtrV3HNJ4Cw3YuucV1iGH+lLMpMxvuFL/7TYmFH kigh0yDvVgcGmh1/cMgBJnJ/NQD34MbUKkRXTNSKW/YY0DzYXQoE9tft6PBqqHw7ouEW G98lNSGtxwxSjsxuivB3GguoAiBamoEfLJetO9xNNlAnaDT0YLuzDIUXmVpT3KtUpik+ pSZeZ7MI+0ZGtf4qbeih/o8T8TqtjTcYPiEhARUHs7sbnofkIhGGpKSMNGG9sILiJWIe RAIg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1793106473; x=1793711273; h=in-reply-to:content-disposition:content-type:mime-version :references:message-id:subject:cc:to:from:date:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=ATvxORBZny1s5fn8dz62jBylTwd8vo+fNFXQREv2wUs=; b=v9pYHJb5Z6/bPcp3TBBCgV9TAD4eAhgKAD2MIq8Ae5wOdE+AKykxc8neMTcTCDGUon vvGDepUwnG/K94Gsdop1LaBLP0IBUMayuO4TGz8fKI9juQtXEhoxZCEmB1PU9Oz73IET S2i2B/sUAYR4qHafHxGxbc2OAq3ftXd/WUeP5PTX6KsY3rjFKIiUzt2t/DMd3DjCGSef E7gn52uP6N5Is1dsoqj7Nsgj0vHYQ228Vl16VnFQ012eV7RTs8lB+ab0Ga8Ayjtg+d4y j4xGrJY+YEYl8GJabGa8KPaKEymG3Jun8DqSC0u+wp7R/f0ym7ZZmaKu9r0yBazCd9Ki NB8A== X-Forwarded-Encrypted: i=1; AKwUvBw58+IBxSIfI4zOHlUKP7N4lgbARGC3rTVW4OytMDQZt0pK3k6hwg7qNxwDjyHIXOwlPM9m+PpD4Z92MtY=@vger.kernel.org X-Gm-Message-State: AFq9FYJ3Geq0JI1G+FJu2W7j74SzHOVGsMY7l+xe3Psm9lP0O8k8tAsx BqjLrWy1k/6xCwkzdZhLeHDd0dysX34gKgv5AZPC5WBaadgPTiLlMHLjqflLw6gzkWecZI42Rb1 aEcn1a5Qkd2gGWsgz/RsPBo+aXRqul8qxcW89gBtIvmzFnf68cgfInyBeUHaO4atyf3q09lp4zA == X-Gm-Gg: AYBFou1fuh21uLti8USLwPR1nLITNm3aVGiTezwxKekPwgxmEkpv2sUt20nT27nbkVC Nw0fYQc1sSI+9+xEDmtmDu+T+SO/7btKS+0oMBFkH3aitTgtR9FEASLOeqEB2W+a63YCwjjB6sO iq4Alx8wJne+j0xlXodByvCmTHQ5kxxdRlLvidThltzbAb9JWBZOtw8Hy0MeyD+zDJCtIT6rEBA RNjeo8747EhuH35ViecGL5guFAJAvDPqtJBPqbni3KJnu0L8f5oGysxtlMofzdk1bF4JPu12e8Z nEtJIdgcgPzjoqonZfTrOS6kKfzgyqVsfQSCpjdGqDr84nKQMtVCyipL1GcH8qCXq0s= X-Received: by 2002:a05:600c:6388:b0:4a1:e9c2:6c84 with SMTP id 5b1f17b1804b1-4a35acaed66mr171606615e9.18.1793106473533; Tue, 27 Oct 2026 06:07:53 -0700 (PDT) X-Received: by 2002:a05:600c:6388:b0:4a1:e9c2:6c84 with SMTP id 5b1f17b1804b1-4a35acaed66mr171605725e9.18.1793106472915; Tue, 27 Oct 2026 06:07:52 -0700 (PDT) Received: from redhat.com ([2a0d:6fc0:1536:fc00:b838:383:1c7:6e81]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4a35a04ad39sm691723785e9.1.2026.10.27.06.07.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 27 Oct 2026 06:07:51 -0700 (PDT) Date: Tue, 27 Oct 2026 09:07:47 -0400 From: "Michael S. Tsirkin" To: Francesco Valla Cc: Mark Brown , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Haixu Cui , Jason Wang , Viresh Kumar , Xuan Zhuo , Eugenio =?iso-8859-1?Q?P=E9rez?= , Mathieu Poirier , linux-spi@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, virtualization@lists.linux.dev Subject: Re: [PATCH v2 0/2] Add devicetree bindings for spi-virtio Message-ID: <20261027090324-mutt-send-email-mst@kernel.org> References: <20261027-spi-virtio-bindings-v2-0-67927b24b9d4@valla.it> <20261027065001-mutt-send-email-mst@kernel.org> 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: On Tue, Oct 27, 2026 at 01:46:35PM +0100, Francesco Valla wrote: > Hello Michael, > > On Tue, Oct 27, 2026 at 06:50:51AM -0400, Michael S. Tsirkin wrote: > > On Tue, Oct 27, 2026 at 08:26:32AM +0100, Francesco Valla wrote: > > > When a virtio transport exposes a non-discoverable bus, the devicetree > > > can be used to declare its child devices (if any) and/or other > > > properties. To allow for that, the virtio framework searches for a node > > > with a suitable compatible in virtio_device_of_init() when registering > > > a device [1]; such compatible takes the form "virtio,deviceXX", where > > > XX is the hexadecimal representation of the virtio device ID as defined > > > by the virtio specification. > > > > > > This patchset thus does not introduce a new functionality, but allows > > > proper validation of nodes tied to spi-virtio devices, aligning SPI to > > > what is already being done for e.g. I2C and GPIO virtio devices. > > > It was sent initially as part of a different patchset [2], but since it > > > complements a functionality that is de-facto already there and is useful > > > beyond that specific use case it was sent separately (also following the > > > maintainer's feedback there to separate it from remoteproc-specific > > > changes). > > > > > > This was tested both with virtio-mmio using qemu-system-aarch64 and with > > > remoteproc-virtio with a Zephyr backend (with relevant remoteproc-virtio > > > parts still not not upstreamed - see [2]). > > > > > > I added myself as reviewer for the spi-virtio driver to be CC'd on any > > > patch involving the new bindings. > > > > > > Thank you! > > > > > > Regards, > > > Francesco > > > > > > [1] https://elixir.bootlin.com/linux/v7.2.8/source/drivers/virtio/virtio.c#L488 > > > [2] https://lore.kernel.org/linux-remoteproc/20260916-remoteproc_virtio_map-v1-0-dac8c5eb4aa9@valla.it/ > > > > > > Signed-off-by: Francesco Valla > > > --- > > > > I hope this can be merged through the devicetree maintainers, > > I have no idea. > > MAINTAINERS changes needs an ack from existing maintainers, of > > course. > > > > This might prove... difficult. My e-mails to the maintainer (Haixu Cui > @quicinc.com) continue to be bounced back by the Qualcomm postmaster > with a RecipientNotFound error. Maybe someone from Qualcomm can give me > a lead on how to contact them? Indeed, so it did for me. Oh that's no good at all. Mark, what's your take? The maintainer is MIA but we have a volunteer maintainer here. As far as I'm concerned Acked-by: Michael S. Tsirkin > > > Changes in v2: > > > - Expanded the commit message to better explain the functionality and > > > the chosen compatible. > > > - Redundant pieces dropped from bindings. > > > - Link to v1: https://patch.msgid.link/20260929-spi-virtio-bindings-v1-0-6a0eef3213b3@valla.it > > > > > > To: Haixu Cui > > > To: Francesco Valla > > > To: Mark Brown > > > To: Rob Herring > > > To: Krzysztof Kozlowski > > > To: Conor Dooley > > > Cc: virtualization@lists.linux.dev > > > Cc: linux-spi@vger.kernel.org > > > Cc: devicetree@vger.kernel.org > > > Cc: linux-kernel@vger.kernel.org > > > > > > --- > > > Francesco Valla (2): > > > dt-bindings: spi: add spi-virtio > > > MAINTAINERS: add Francesco as spi-virtio reviewer > > > > > > .../devicetree/bindings/spi/spi-virtio.yaml | 46 ++++++++++++++++++++++ > > > MAINTAINERS | 2 + > > > 2 files changed, 48 insertions(+) > > > --- > > > base-commit: d135ab453a7400a34930bdda1ef4bdc8acfac80e > > > change-id: 20260927-spi-virtio-bindings-f4e350b2709a > > > > > > Best regards, > > > -- > > > Francesco Valla > > > > Regards, > Francesco