From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 636AB372B5A; Mon, 7 Sep 2026 08:39:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788770393; cv=none; b=ikHXWi0KeN0fN6UTkw8CuncqPKhBnF+ZlpQPNUtAbRfRVKDVyY8OjT4OftFYVrdyp1LL7rZiaQalBARzhOx/SetMnNz/LtABzO9Ur7NiN/l1vKEZFENFYS+x5hsTok6Do/RJMreig4hi0VZ9ya62OukEWRArlqmjlvUxyn6vBtw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788770393; c=relaxed/simple; bh=zDoK6+uGZXA/Sq7ZGnOPxEQJ0Y0OInWk3V3q0nTs78g=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=d2BhYUFvyGKo6Qf8pW8LVv4Z/XnlBb0KqIucol1D6/LZ/rGOi+gkS8ut9o9VrfO+GfJhPgBM98j8jLcs0CuJ5mNHO3EOeqF6dwK6TTZiZsRk7vk8ZgANtJDzE15ibKZbwKrkQMO/OwW17GDCRlU6iWq5lQvRXMiATMFY/FS8wkk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=fpMfsl+f; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="fpMfsl+f" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 40D501F00A3A; Mon, 7 Sep 2026 08:39:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1788770392; bh=fGHehMKmF4vNAA+hz7aiKGQEL9DitcSlByhH2VpikK4=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=fpMfsl+fbf8jPSU5uRwCmr4e5mkw9aTiSY0tjtX184de8qnIL/+dxxf8u6jODlHLD eGsFCS2dmv8egxxCthJ7cgrXydv05gr3wFY1+AVhFnmVwrXAWMxBgLJEy7/Za7ezjP wkDz57LWE5Nwd6fZQzrFUavNIr181G/PHOj3SBQpNfptmxJAhlsyauzYANDs+xjGoP 6j/lsm09OQoc7jjBIs0ewHQTXxWwdEwV97n8JJxch/dvCVJyK3eZ1CebVI3tu8x+bi zaVmSb1XIJ9ukVqjAkzQ/T1q9CR1Bt/f8tvJw6Om5BQBzOvONvtNa7FMRgoUeB9dw1 nB1/tSljxWQpQ== Date: Mon, 7 Sep 2026 10:39:48 +0200 From: Krzysztof Kozlowski To: Mattijs Korpershoek Cc: Vinod Koul , Neil Armstrong , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Maxime Ripard , linux-arm-msm@vger.kernel.org, linux-phy@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v5 1/2] dt-bindings: phy: Add sa8255p USB PHY Message-ID: <20260907-neat-sandy-silkworm-839edc@quoll> References: <20260903-phy-qcom-qmp-usb-8255-v5-0-e251e22b341e@kernel.org> <20260903-phy-qcom-qmp-usb-8255-v5-1-e251e22b341e@kernel.org> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20260903-phy-qcom-qmp-usb-8255-v5-1-e251e22b341e@kernel.org> On Thu, Sep 03, 2026 at 09:44:47AM +0200, Mattijs Korpershoek wrote: > SA8255p platform abstracts resources such as resets, clocks and > regulators in firmware. The SCMI firmware exposes multiple protocols to > control such resources which are identified by protocol_id. > > For this USB phy, 2 SCMI protocols are exposed by the firmware: > * power domain management protocol (protocol_id=0x11) > * performance domain management protocol (protocol_id=0x13) > > The power domain has 2 indices: 'core' and 'transfer'. > * core controls the regulators, the clocks and the reset > * transfer only controls the clocks > > For example, to power on/off the PHY, we should use the 'core' domain. > To disable data transfer and keeping power enabled, we should use the > 'transfer' domain. > > Add a new binding for the for the Qualcomm QMP Super Speed (SS) UNI PHY > found in SA8255P. > > Note: the performance domain (0x13) exposes opaques values (0xa to 0x11) > for which we don't have any information. Since it is not mandatory > for the PHY to be functional, we have ommited it from the bindings. > We can document it (and make them part of the dt ABI) once we have more > information. > > Signed-off-by: Mattijs Korpershoek > --- > .../phy/qcom,sa8255p-qmp-usb3-uni-phy.yaml | 52 ++++++++++++++++++++++ > 1 file changed, 52 insertions(+) Reviewed-by: Krzysztof Kozlowski Best regards, Krzysztof From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 1B782C79F9E for ; Mon, 7 Sep 2026 08:39:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=i6DguSNNT2Q9CKSvLTSsLWFV7qrf20LfO1dbnMYpB34=; b=LHHouvb7ogJwzB mUzhh3kJfWxTxmRNjqLWzYspfl6fu/MnBIcJQVD+FTnpnmtfNAeSmIJvK7ASceaU2u3MuQYrL469l /hOy41SijNGHnj2xduYZPUpiafRKMFC7N9VHo+UBJAuTrR4L9pnUwCfn16R0IG0yi7k5k5pNuaOO6 qF/8sf+04CcSqiAXTPJ2MEZ5i9in1o9fXam+xWyszQl1kHYsRJcRokhYUyMIb9MckvFGinictGb2M 68poaNrCP2vpsRXhkDGo6eiyxpQlKU8qDoOtxzRRs322znjdXY1qj6mo+Fm9a+g8MJg167iIJrE4U X6eiOy5ZW0s1NaxPq+ow==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1x3UtN-00000006IEq-2mcX; Mon, 07 Sep 2026 08:39:53 +0000 Received: from tor.source.kernel.org ([172.105.4.254]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1x3UtN-00000006IEj-0RwN for linux-phy@lists.infradead.org; Mon, 07 Sep 2026 08:39:53 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id 53E3D60052; Mon, 7 Sep 2026 08:39:52 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 40D501F00A3A; Mon, 7 Sep 2026 08:39:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1788770392; bh=fGHehMKmF4vNAA+hz7aiKGQEL9DitcSlByhH2VpikK4=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=fpMfsl+fbf8jPSU5uRwCmr4e5mkw9aTiSY0tjtX184de8qnIL/+dxxf8u6jODlHLD eGsFCS2dmv8egxxCthJ7cgrXydv05gr3wFY1+AVhFnmVwrXAWMxBgLJEy7/Za7ezjP wkDz57LWE5Nwd6fZQzrFUavNIr181G/PHOj3SBQpNfptmxJAhlsyauzYANDs+xjGoP 6j/lsm09OQoc7jjBIs0ewHQTXxWwdEwV97n8JJxch/dvCVJyK3eZ1CebVI3tu8x+bi zaVmSb1XIJ9ukVqjAkzQ/T1q9CR1Bt/f8tvJw6Om5BQBzOvONvtNa7FMRgoUeB9dw1 nB1/tSljxWQpQ== Date: Mon, 7 Sep 2026 10:39:48 +0200 From: Krzysztof Kozlowski To: Mattijs Korpershoek Cc: Vinod Koul , Neil Armstrong , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Maxime Ripard , linux-arm-msm@vger.kernel.org, linux-phy@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v5 1/2] dt-bindings: phy: Add sa8255p USB PHY Message-ID: <20260907-neat-sandy-silkworm-839edc@quoll> References: <20260903-phy-qcom-qmp-usb-8255-v5-0-e251e22b341e@kernel.org> <20260903-phy-qcom-qmp-usb-8255-v5-1-e251e22b341e@kernel.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20260903-phy-qcom-qmp-usb-8255-v5-1-e251e22b341e@kernel.org> X-BeenThere: linux-phy@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux Phy Mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-phy" Errors-To: linux-phy-bounces+linux-phy=archiver.kernel.org@lists.infradead.org On Thu, Sep 03, 2026 at 09:44:47AM +0200, Mattijs Korpershoek wrote: > SA8255p platform abstracts resources such as resets, clocks and > regulators in firmware. The SCMI firmware exposes multiple protocols to > control such resources which are identified by protocol_id. > > For this USB phy, 2 SCMI protocols are exposed by the firmware: > * power domain management protocol (protocol_id=0x11) > * performance domain management protocol (protocol_id=0x13) > > The power domain has 2 indices: 'core' and 'transfer'. > * core controls the regulators, the clocks and the reset > * transfer only controls the clocks > > For example, to power on/off the PHY, we should use the 'core' domain. > To disable data transfer and keeping power enabled, we should use the > 'transfer' domain. > > Add a new binding for the for the Qualcomm QMP Super Speed (SS) UNI PHY > found in SA8255P. > > Note: the performance domain (0x13) exposes opaques values (0xa to 0x11) > for which we don't have any information. Since it is not mandatory > for the PHY to be functional, we have ommited it from the bindings. > We can document it (and make them part of the dt ABI) once we have more > information. > > Signed-off-by: Mattijs Korpershoek > --- > .../phy/qcom,sa8255p-qmp-usb3-uni-phy.yaml | 52 ++++++++++++++++++++++ > 1 file changed, 52 insertions(+) Reviewed-by: Krzysztof Kozlowski Best regards, Krzysztof -- linux-phy mailing list linux-phy@lists.infradead.org https://lists.infradead.org/mailman/listinfo/linux-phy