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 0252756472; Sat, 14 Mar 2026 08:05:39 +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=1773475540; cv=none; b=RYxwO2FasOzpXSF88xzxxq/AuQMtbR9SAgi2eQWDV9zqn5ud6DO+G5RCRAoZuoklQz6UEaaA2lKq8cVlJQxLc5VHAZ7Zha1EBmSwuvhE9oD0FHOhK3y0LfESk+EsYMRwGXWnWjcw0wwyfJgj5ngMxpvNcNrCZgpWqoqzdn6Rqyc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773475540; c=relaxed/simple; bh=xtjslWx4fw62YVGcblCJxi7bzvL0cBKciLoO0Dsr5G4=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=YB8NX/2Vd7IHwFz3DLP4FlVXr8FG2TG4msRoZopvrDsizqaqXF+bZF4Od2mEImWkOzCIYoUxm4b0vgZ166IgETd8k8bS3GAnWZhKB38/EUFTSn+1bChjy8k+w5PBFgcIhawvGi5byI36wvFnglqbGu/bKjdkf56RIRbiq7yMypY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=DrpHf9+a; 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="DrpHf9+a" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8448DC116C6; Sat, 14 Mar 2026 08:05:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1773475539; bh=xtjslWx4fw62YVGcblCJxi7bzvL0cBKciLoO0Dsr5G4=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=DrpHf9+ahFoxkfnWX78OuatZ7zSuGqkeyHnCyBptqF95hK74YLTwChV9AFrEXGk8L +XKIE+ZWrJcB9ONro2i2/MO0vj3MTBc3vnflg3MLgcE/BFaOau6Zd0QXSxglLUwJNm VntAUA3HulkKoxluSIBTTfwl15TvQb1/hjsKSfmkGx8bTrS3wxxt+e4Ky/eraiIx0Q E9soRgfD/OnNhWVhwi2vgoQJDXTcPmK0DMfiK6Zw8TtiYYPlH0TQrsvAFKFB6HV+Cr pIIs9N5AVNvHRJlp2e4gTNEITuyjEsvd0TtIYOknI+6yIZLRwtAWIjjfb5CwALSgyb bW1yin72omPsg== Date: Sat, 14 Mar 2026 16:05:37 +0800 From: Yixun Lan To: Krzysztof Kozlowski Cc: Philipp Zabel , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Junzhong Pan , Guodong Xu , devicetree@vger.kernel.org, linux-riscv@lists.infradead.org, spacemit@lists.linux.dev, linux-kernel@vger.kernel.org Subject: Re: [PATCH 1/2] dt-bindings: soc: spacemit: k3: Decouple composite reset lines Message-ID: <20260314080537-GKA415778@kernel.org> References: <20260312-01-k3-reset-usb-pci-v1-0-022b24b7340f@kernel.org> <20260312-01-k3-reset-usb-pci-v1-1-022b24b7340f@kernel.org> <20260313-certain-idealistic-urchin-001e96@quoll> 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: <20260313-certain-idealistic-urchin-001e96@quoll> Hi Krzysztof, On 14:42 Fri 13 Mar , Krzysztof Kozlowski wrote: > On Thu, Mar 12, 2026 at 10:34:19AM +0000, Yixun Lan wrote: > > Instead of grouping several different reset lines into one composite > > reset, decouple them to individual ones which make it more aligned > > with underlying hardware. > > > > The DWC3 USB host controller in K3 SoC has three reset lines - AHB, VCC, > > PHY. The PCIe controller also has three reset lines - DBI, Slave, Master. > > Either this is ABI break, which would need explanation, or it is not, > which also needs explanation and then fixing current bindings before > they are released. > Literally, Changing IDs would result an ABI breakage, but since we have no consumers - no driver/DT use those IDs so far, so we could safely renumber it and push as a fix for it. This issue was already raised by Philipp in this thread [1], and I agreeed, will put some explanations. Link: https://lore.kernel.org/r/20260312112858-GKH302167@kernel.org [1] -- Yixun Lan (dlan)