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property binding Date: Wed, 19 Jan 2022 14:11:17 +0100 Message-Id: <20220119131117.30245-1-kabel@kernel.org> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220119_051126_273111_F39BC355 X-CRM114-Status: GOOD ( 17.32 ) 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="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-phy" Errors-To: linux-phy-bounces+linux-phy=archiver.kernel.org@lists.infradead.org Q29tbW9uIFBIWXMgYW5kIG5ldHdvcmsgUENTZXMgb2Z0ZW4gaGF2ZSB0aGUgcG9zc2liaWxpdHkg dG8gc3BlY2lmeQpwZWFrLXRvLXBlYWsgdm9sdGFnZSBvbiB0aGUgZGlmZmVyZW50aWFsIHBhaXIg LSB0aGUgZGVmYXVsdCB2b2x0YWdlCnNvbWV0aW1lcyBuZWVkcyB0byBiZSBjaGFuZ2VkIGZvciBh IHBhcnRpY3VsYXIgYm9hcmQuCgpBZGQgcHJvcGVydGllcyBgdHgtcDJwLW1pY3Jvdm9sdGAgYW5k 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bHQtbmFtZXM6IFsgdHgtcDJwLW1pY3Jvdm9sdCBdCisKK2FkZGl0aW9uYWxQcm9wZXJ0aWVzOiB0 cnVlCisKK2V4YW1wbGVzOgorICAtIHwKKyAgICBwaHk6IHBoeSB7CisgICAgICAjcGh5LWNlbGxz ID0gPDE+OworICAgICAgdHgtcDJwLW1pY3Jvdm9sdCA9IDw5MTUwMDA+LCA8MTEwMDAwMD4sIDwx MjAwMDAwPjsKKyAgICAgIHR4LXAycC1taWNyb3ZvbHQtbmFtZXMgPSAiMjUwMGJhc2UteCIsICJ1 c2ItaHMiLCAidXNiLXNzIjsKKyAgICB9OwotLSAKMi4zNC4xCgoKLS0gCmxpbnV4LXBoeSBtYWls aW5nIGxpc3QKbGludXgtcGh5QGxpc3RzLmluZnJhZGVhZC5vcmcKaHR0cHM6Ly9saXN0cy5pbmZy YWRlYWQub3JnL21haWxtYW4vbGlzdGluZm8vbGludXgtcGh5Cg== 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7709AC433FE for ; Wed, 19 Jan 2022 13:11:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1354635AbiASNL1 (ORCPT ); Wed, 19 Jan 2022 08:11:27 -0500 Received: from ams.source.kernel.org ([145.40.68.75]:54114 "EHLO ams.source.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1354498AbiASNL1 (ORCPT ); Wed, 19 Jan 2022 08:11:27 -0500 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 9B277B81837; Wed, 19 Jan 2022 13:11:25 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A3B7EC340E1; Wed, 19 Jan 2022 13:11:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1642597884; bh=RHxDuyEXa0btBE9bl6vNwhNZUf3Bjj1q/NWYIKk6LYc=; h=From:To:Cc:Subject:Date:From; b=bvjdcT3RIZPs1sbwonlpWqzItBLu9YPViD9HLGl+cC7dXG4WjzL6OhAPMk3hDRa5i cKpYdsgSe46oiCrjJ/3HKrKQAEjwSOKCM35sk5Z0VKUlwFt2CJxKrORi7GRdKMcDy1 h0T1rvgpwIJAbKdeoHhLwOf91PrDlDt41r9Q3dWjML0a7089fwnTOgBXlgNkH360tf vH6f91TQy/ae+kmQoFF3cZZ7j9k9GgRSCRGm8Y3bkuyeKpGzf7gzlFRuNzBLy5m6Ji XdGozlyuqp2sQw3JGCb49Mq7MOWmv6HNgb2qMqGzvRnCioNSZIrGgsNySXt/FXuwap a8yifnjktjXqw== From: =?UTF-8?q?Marek=20Beh=C3=BAn?= To: Rob Herring , devicetree@vger.kernel.org Cc: Vladimir Oltean , Holger Brunck , Andrew Lunn , "netdev@vger.kernel.org" , Russell King , linux-phy@lists.infradead.org, Vinod Koul , Kishon Vijay Abraham I , =?UTF-8?q?Marek=20Beh=C3=BAn?= Subject: [PATCH devicetree v3] dt-bindings: phy: Add `tx-p2p-microvolt` property binding Date: Wed, 19 Jan 2022 14:11:17 +0100 Message-Id: <20220119131117.30245-1-kabel@kernel.org> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Common PHYs and network PCSes often have the possibility to specify peak-to-peak voltage on the differential pair - the default voltage sometimes needs to be changed for a particular board. Add properties `tx-p2p-microvolt` and `tx-p2p-microvolt-names` for this purpose. The second property is needed to specify the mode for the corresponding voltage in the `tx-p2p-microvolt` property, if the voltage is to be used only for speficic mode. More voltage-mode pairs can be specified. Example usage with only one voltage (it will be used for all supported PHY modes, the `tx-p2p-microvolt-names` property is not needed in this case): tx-p2p-microvolt = <915000>; Example usage with voltages for multiple modes: tx-p2p-microvolt = <915000>, <1100000>, <1200000>; tx-p2p-microvolt-names = "2500base-x", "usb", "pcie"; Add these properties into a separate file phy/transmit-amplitude.yaml, which should be referenced by any binding that uses it. Signed-off-by: Marek Behún --- Change since v2: - removed 'select:' as requested by Rob. Instead the schema should be referenced by any binding that uses it. This also fixed indentation warnings from Rob's bot, since they warned about lines in the select statement --- .../bindings/phy/transmit-amplitude.yaml | 103 ++++++++++++++++++ 1 file changed, 103 insertions(+) create mode 100644 Documentation/devicetree/bindings/phy/transmit-amplitude.yaml diff --git a/Documentation/devicetree/bindings/phy/transmit-amplitude.yaml b/Documentation/devicetree/bindings/phy/transmit-amplitude.yaml new file mode 100644 index 000000000000..51492fe738ec --- /dev/null +++ b/Documentation/devicetree/bindings/phy/transmit-amplitude.yaml @@ -0,0 +1,103 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/phy/transmit-amplitude.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Common PHY and network PCS transmit amplitude property binding + +description: + Binding describing the peak-to-peak transmit amplitude for common PHYs + and network PCSes. + +maintainers: + - Marek Behún + +properties: + tx-p2p-microvolt: + description: + Transmit amplitude voltages in microvolts, peak-to-peak. If this property + contains multiple values for various PHY modes, the + 'tx-p2p-microvolt-names' property must be provided and contain + corresponding mode names. + + tx-p2p-microvolt-names: + description: | + Names of the modes corresponding to voltages in the 'tx-p2p-microvolt' + property. Required only if multiple voltages are provided. + + If a value of 'default' is provided, the system should use it for any PHY + mode that is otherwise not defined here. If 'default' is not provided, the + system should use manufacturer default value. + minItems: 1 + maxItems: 16 + items: + enum: + - default + + # ethernet modes + - sgmii + - qsgmii + - xgmii + - 1000base-x + - 2500base-x + - 5gbase-r + - rxaui + - xaui + - 10gbase-kr + - usxgmii + - 10gbase-r + - 25gbase-r + + # PCIe modes + - pcie + - pcie1 + - pcie2 + - pcie3 + - pcie4 + - pcie5 + - pcie6 + + # USB modes + - usb + - usb-ls + - usb-fs + - usb-hs + - usb-ss + - usb-ss+ + - usb-4 + + # storage modes + - sata + - ufs-hs + - ufs-hs-a + - ufs-hs-b + + # display modes + - lvds + - dp + - dp-rbr + - dp-hbr + - dp-hbr2 + - dp-hbr3 + - dp-uhbr-10 + - dp-uhbr-13.5 + - dp-uhbr-20 + + # camera modes + - mipi-dphy + - mipi-dphy-univ + - mipi-dphy-v2.5-univ + +dependencies: + tx-p2p-microvolt-names: [ tx-p2p-microvolt ] + +additionalProperties: true + +examples: + - | + phy: phy { + #phy-cells = <1>; + tx-p2p-microvolt = <915000>, <1100000>, <1200000>; + tx-p2p-microvolt-names = "2500base-x", "usb-hs", "usb-ss"; + }; -- 2.34.1