From patchwork Sun Apr 13 08:58:00 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Frank Wunderlich (linux)" X-Patchwork-Id: 14049224 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 A84D5C3601E for ; Sun, 13 Apr 2025 09:00:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-Type: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=SkS+vSuo1znIoysQeehovZJ1m0kqebSTrJLxr1xkdnM=; b=F45/IduU8caajllJA8q4dg6+qd 4/s2vZmW2/fCbsLdghHHpzYAVV+KEVuct53TYlDxF846KB8VtTLPns7Ny6mE0N8Fhx/IeCf8BsZaY T7nLJ4PKjWrV2/CJ+j5Dg3gxnO7OMLWRskJd66mzzJYGb7hjMknHvSqHi/C8seqNJA34GJoXtjB60 V4rANPeDBn+vI04dAVuUw9GF8pz58vUeKQMRVQ6u9SCllkGfE62pHT9N+etXDVH5s0MBi6IOjiIzW rQWNOt9KuI3Tj83hBI6Efwxmflm3WlzLJBNgmzYQAFsavPaNZAkNS/RmW3nNJfQCCArEAIthZieBd vESxHjEA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1u3tCF-0000000GywX-3aE2; Sun, 13 Apr 2025 09:00:11 +0000 Received: from mxout2.routing.net ([2a03:2900:1:a::b]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1u3tAM-0000000Gyl4-2UaW; Sun, 13 Apr 2025 08:58:16 +0000 Received: from mxbox1.masterlogin.de (unknown [192.168.10.88]) by mxout2.routing.net (Postfix) with ESMTP id 108B65FC6A; Sun, 13 Apr 2025 08:58:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mailerdienst.de; s=20200217; t=1744534692; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=SkS+vSuo1znIoysQeehovZJ1m0kqebSTrJLxr1xkdnM=; b=cDGfs988LIIYqcjiBKSyw6TwXfDQDp1uPMMGUitip6CDKhA7ECg11X5UOhErtB/remUPCz 3UnW6VKdgwOqndaB9+6KGu2jRN0BGd569DiE+0gDk1SwxQ6T6IAhABO/UQxA9+lMm1wDtI ZCZpacRkyp9eOA3WwXE7i3BsBOvg/6k= Received: from frank-u24.. (fttx-pool-194.15.86.153.bambit.de [194.15.86.153]) by mxbox1.masterlogin.de (Postfix) with ESMTPSA id CA8EE4006C; Sun, 13 Apr 2025 08:58:10 +0000 (UTC) From: Frank Wunderlich To: Chunfeng Yun , Vinod Koul , Kishon Vijay Abraham I , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Matthias Brugger , AngeloGioacchino Del Regno Cc: Frank Wunderlich , Daniel Golle , Sam Shih , MandyJH Liu , linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-phy@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [RFC 0/5] Add mt7988 XS-PHY Date: Sun, 13 Apr 2025 10:58:00 +0200 Message-ID: <20250413085806.8544-1-linux@fw-web.de> X-Mailer: git-send-email 2.43.0 MIME-Version: 1.0 X-Mail-ID: 29a3ad43-8079-44b9-9f98-200054c44558 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250413_015814_800522_EFCD9D05 X-CRM114-Status: UNSURE ( 8.19 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Frank Wunderlich Mediatek XS-Phy is a high speed phy used for pcie and usb on mt7988 platform. It requires a topmisc power controller to switch between USB and PCI mode. This topmisc system controller is also used by ethernet-node which is not upstreamed yet. --- regading syscon-fallback...i know that it should be avoided ;) based on these commits: ba5095ebbc7a ("mfd: syscon: Allow syscon nodes without a "syscon" compatible") 5728c92ae112 ("mfd: syscon: Restore device_node_to_regmap() for non-syscon nodes") I tried to get it working without syscon by changing instance->type_sw = syscon_node_to_regmap(args.np); to device_node_to_regmap() then xsphy was probed sucessfully, but all pcie (not only the one with xsphy) stopped working. for ethernet its driver uses syscon_regmap_lookup_by_phandle which needs to be patched in syscon driver to also use device_node_to_regmap instead of syscon_node_to_regmap (with create=true). But have not tried this. regarding the pcie issue when dropping the syscon compatible i would leave this compatible, but send this patchset as RFC. Maybe anyone can solve this. Daniel Golle (1): phy: mediatek: xsphy: support type switch by pericfg Frank Wunderlich (4): dt-bindings: phy: mtk-xs-phy: Add mt7988 compatible dt-bindings: phy: mtk-xs-phy: support type switch by pericfg dt-bindings: power: Add binding for MediaTek MT7988 topmisc power controller arm64: dts: mediatek: mt7988: Add xsphy for ssusb0/pcie2 .../bindings/phy/mediatek,xsphy.yaml | 17 ++++ .../power/mediatek,power-controller.yaml | 35 +++++--- arch/arm64/boot/dts/mediatek/mt7988a.dtsi | 39 +++++++++ drivers/phy/mediatek/phy-mtk-xsphy.c | 85 ++++++++++++++++++- 4 files changed, 164 insertions(+), 12 deletions(-)