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 AAD67149C53; Sat, 18 Jan 2025 09:06:29 +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=1737191189; cv=none; b=pyhswmFK0NWVVvCBh7Sfnpz7l6Fc9nE/NXdIS3eNHxv+uiWZHyw0FVDgQEYaDR8c5jhULxDlCzEKO369GkoRL4RjEz4pF/yUAPkmBphAvEynX+90HBzLWuMvPPmNrbgajo3gs7HFqvHCKSJTlssHHxPLj/unA0uDollC1NZvYBg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737191189; c=relaxed/simple; bh=W72n6k6I10kEtr2+MT478ZeK4p5MAuwX/eow0Hqin2A=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=QQg5pXA9bC1mcrFsfwTxuHEqExVPGlGWYiTW+4XYrNVjJD4V8LV7ZJFbjUpp2OoeTffZHComiJTbxPn42BUvOQ2+hEM/iBJ45dNi1fzw/ZaKH/e1mr58M1NumUwi8+s30XawcLJfSd4ttJ6pGMa/oydE8/yFZ29JLoZU0GqkToE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=keDSW8LJ; 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="keDSW8LJ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4F922C4CED1; Sat, 18 Jan 2025 09:06:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1737191189; bh=W72n6k6I10kEtr2+MT478ZeK4p5MAuwX/eow0Hqin2A=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=keDSW8LJ+M3LN4LMEB+CNT2Rq/TEvuY5FVoVfUb8l7sTx3gULvY3cJsaIWYOWwrSB QodHlBEs3JH4er87ELHu08tfM48aUEW/JGGvQ7fZK7c3yZur0h06Q0hN391h2Zof8Q 7RNSN2fN0mbNx519CEfmkUGVbk234yBfXed5IrCXk334N0SBCwOZMdKTeqXFUARTGp FIPyppfVq8zpUHkX3A/k1UbjcaRgu7GrMEVWBvztnsbJHd0d6UJlmjWetXmSouEwfL 4jr2r1PjXldA5pq6gyW4hFHxvmJbj2x0YS75ktna9tTcHEU6oAc5kIwiyivX1+jqfi 5wiALGH4QTvHA== Message-ID: <6ed39130-4f77-490d-ab28-8b65cb685147@kernel.org> Date: Sat, 18 Jan 2025 10:06:21 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [RFC PATCH v1 2/6] dt-bindings: phy: rockchip: add rk3328 usb3 phy To: Peter Geis Cc: Heiko Stuebner , zyw@rock-chips.com, kever.yang@rock-chips.com, frank.wang@rock-chips.com, william.wu@rock-chips.com, wulf@rock-chips.com, linux-rockchip@lists.infradead.org, Conor Dooley , Kishon Vijay Abraham I , Krzysztof Kozlowski , Rob Herring , Vinod Koul , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-phy@lists.infradead.org References: <20250115012628.1035928-1-pgwipeout@gmail.com> <20250115012628.1035928-3-pgwipeout@gmail.com> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 16/01/2025 14:32, Peter Geis wrote: >> >> >>> + additionalProperties: false >>> + >>> + properties: >>> + compatible: >>> + enum: >>> + - rockchip,rk3328-usb3phy-utmi >>> + >>> + reg: >>> + maxItems: 1 >>> + >>> + "#phy-cells": >>> + const: 0 >> >> Does not look correct. Your parent device is the phy, not child. Why do >> you create children per each type of phy? > > Because that's how it's done elsewhere in Rockchip's phys [1]. How > should it be done? The phys have separate supplies and IO addresses? Then it is reasonable to keep them separate and as children. But then more questions appear: why resets - which are also per utmi or port - are in top-level node? This should be represented in coherent way: either you define the properties/nodes per PHY or just everything in one/entire PHY controller. Not mixed. Same concerns about clocks in top-level. It also might be that everything is a bit mixed, so you have entire phy controller handling common resources and still separate phy for USB2 and USB3 as children, but that should be conscious choice coming from actual hardware. You have entire "description:" in binding to explain the hardware and any questions I asked now. Best regards, Krzysztof