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 8BA4FC531F9 for ; Tue, 28 Jul 2026 10:10:38 +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:Cc:To:In-Reply-To:References:Message-Id :MIME-Version:Subject:Date:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=SPfoVz5XFXVvGi6FmYkTgd1eP3Tw967XW8q0BbchsUA=; b=gEDp5eh5HDtTeI cmJNDQUFkwVarEbf8ViK0Tkk+KhY6+1xvljkPEYSddL5yZIqTd6k+8OVq4hMfbrxru7eHZlUkFr6J 9IAxj7VQfeSFPXOpDC693klcJxltx6rbPmqLcJanNKvmsphDqnNMvrA1WOYEi/S4HYx72SF9NrbR7 RhdTsZWDud+vzUUaPNDXs08mys2MY4HFVsLNdIIz9YijwqE7pVN5dbKuAF/DdnHqicB2MGsu6S95x Rh0IyF20+ykaW3o9dzT8CLA50dOHkz1xR709pQP1mYbOmmmm1Sa0A11rL1ItW9Nwh9K7eafrxsAV+ Q0d/cKvvn4FmT1MzunBg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1woeli-00000004vLf-13XJ; Tue, 28 Jul 2026 10:10:38 +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 1woelg-00000004vKt-3AvO for linux-phy@lists.infradead.org; Tue, 28 Jul 2026 10:10:36 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id 1982D60A8D; Tue, 28 Jul 2026 10:10:36 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6CCD01F000E9; Tue, 28 Jul 2026 10:10:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1785233435; bh=NmBOIY3EIHbjUW/p06o1gBsIW7Mk59jVWdBhNljKNe4=; h=From:Date:Subject:References:In-Reply-To:To:Cc; b=aqPyPN0s+426m2ZVl9iqZVy5vT5F8eLsB2hZkMWDOuUUWOKLokxqePUv/jxe2KoaL jxj7qjNqBMpbjnfw2ql06y43kFTAt4Z/vab/duUHeot6MVldpkl3EfMa/UTUYFOIlc qTEA2L/Uy9u8BeoddlAE4MOGfpndgkx0ACNfjPYdoI0W4JRS0eEt0CydP9Euz2QFtq jFnynpMMysv+Qb64Ruj+R/JmK7woWAcuGq9PSRveOgBAjGgqfBjUnClwdMa08r3GKx qwrNkO/lRU2RJ0Z0RhCcsGCTjSSDK7l1yp67RCqPOmgUUtHFJkvKJzQS0NSUn074q0 Nc0hbK9Lq6yyw== From: Konrad Dybcio Date: Tue, 28 Jul 2026 12:10:13 +0200 Subject: [PATCH v2 2/5] phy: core: Define TBT phy_mode MIME-Version: 1.0 Message-Id: <20260728-topic-usb4phy-v2-2-5d9dd5149ec7@oss.qualcomm.com> References: <20260728-topic-usb4phy-v2-0-5d9dd5149ec7@oss.qualcomm.com> In-Reply-To: <20260728-topic-usb4phy-v2-0-5d9dd5149ec7@oss.qualcomm.com> To: Vinod Koul , Neil Armstrong , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bjorn Andersson , Konrad Dybcio Cc: linux-kernel@vger.kernel.org, linux-phy@lists.infradead.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, usb4-upstream@oss.qualcomm.com, Raghavendra Thoorpu , Mika Westerberg , Sven Peter , Konrad Dybcio , Dmitry Baryshkov X-Mailer: b4 0.15.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1785233420; l=1832; i=konrad.dybcio@oss.qualcomm.com; s=20230215; h=from:subject:message-id; bh=6gTlH9zkXDrpxrfoapsub+GQSk7FbD0MtjsdTOkBxn4=; b=1XGDlHZt+iYW9uQqpU5jVTU8yy0xHW0DUNsodMy1brE3gO1BuA+Heq17MUcJJ2EDzczkH75HI fUAeEOjKpNcCYnrJ2NPp+UN2j8mealDFBueQtGY1ZP8wWPwcnw7S3z0 X-Developer-Key: i=konrad.dybcio@oss.qualcomm.com; a=ed25519; pk=iclgkYvtl2w05SSXO5EjjSYlhFKsJ+5OSZBjOkQuEms= 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 From: Konrad Dybcio There exist OS-accessible USB4 and Thunderbolt PHYs that need specific configuration. Define a new phy_mode for them. Currently, USB4 and TBT3 are defined as submodes, because they're quite distinct, most visibly in the electrical/analog aspects (slightly different frequencies, timings, etc.). This results in a need to make the PHY aware of the actual mode needed (at least in the Qualcomm implementation, but I believe that'll be a general need). Newer versions of TBT are basically supersets of USB4 with higher host-side requirements, so these are not defined. This can always be changed as necessary. Reviewed-by: Dmitry Baryshkov Signed-off-by: Konrad Dybcio --- include/linux/phy/phy-tbt.h | 14 ++++++++++++++ include/linux/phy/phy.h | 2 ++ 2 files changed, 16 insertions(+) diff --git a/include/linux/phy/phy-tbt.h b/include/linux/phy/phy-tbt.h new file mode 100644 index 000000000000..5f48059814e1 --- /dev/null +++ b/include/linux/phy/phy-tbt.h @@ -0,0 +1,14 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries. + */ + +#ifndef __PHY_TBT_H_ +#define __PHY_TBT_H_ + +enum tbt_phy_submode { + PHY_SUBMODE_TBT3, + PHY_SUBMODE_USB4, +}; + +#endif diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h index ea47975e288a..26a91c070f8c 100644 --- a/include/linux/phy/phy.h +++ b/include/linux/phy/phy.h @@ -20,6 +20,7 @@ #include #include #include +#include struct phy; @@ -45,6 +46,7 @@ enum phy_mode { PHY_MODE_LVDS, PHY_MODE_DP, PHY_MODE_HDMI, + PHY_MODE_TBT, }; enum phy_media { -- 2.55.0 -- linux-phy mailing list linux-phy@lists.infradead.org https://lists.infradead.org/mailman/listinfo/linux-phy