From patchwork Wed Sep 2 19:28:24 2026 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: James Hilliard X-Patchwork-Id: 3146 Return-Path: X-Original-To: noreply@patchwork.local Delivered-To: noreply@patchwork.local Received: from sea.lore.kernel.org (sea.lore.kernel.org [172.234.253.10]) by mxe881.netcup.net (Postfix) with ESMTPS id BFFBE1C0588 for ; Wed, 2 Sep 2026 21:44:29 +0200 (CEST) Authentication-Results: mxe881; dkim=pass header.d=gmail.com; spf=pass (sender IP is 172.234.253.10) smtp.mailfrom=linux-sunxi+bounces-25499-noreply=patchwork.local@lists.linux.dev smtp.helo=sea.lore.kernel.org Received-SPF: pass (mxe881: domain of lists.linux.dev designates 172.234.253.10 as permitted sender) client-ip=172.234.253.10; envelope-from=linux-sunxi+bounces-25499-noreply=patchwork.local@lists.linux.dev; helo=sea.lore.kernel.org; Received: from smtp.subspace.kernel.org (conduit.subspace.kernel.org [100.90.174.1]) by sea.lore.kernel.org (Postfix) with ESMTP id 782D5A1D76 for ; Wed, 2 Sep 2026 19:29:47 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id EC2FF396D15; Wed, 2 Sep 2026 19:28:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="at5+gohF" X-Original-To: linux-sunxi@lists.linux.dev Received: from mail-oa1-f49.google.com (mail-oa1-f49.google.com [209.85.160.49]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CBDC838F659 for ; Wed, 2 Sep 2026 19:28:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.160.49 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788377336; cv=none; b=f8J1QYNUF1BWaQf4RGkDtQSyuwvWwEPkfUEH8PJXvh9y5pkvw8cX4sta2n5/g9FgOvxM3XmafspUoyScNg65JlPv6LWDSqKHdVqllgK2YsW/uqg+5f22iJ+84Vseh2vGK3sJ+78p2onl/vivTsf9OkmzhYecXHZ00bB01PUlHiM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788377336; c=relaxed/simple; bh=FM5tgF1f4gTluCeeCOhkUzBtb1GjjHUL6PkplRSqmH8=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=ufk/rcYBiGWN8HB2BDhl4SQq5QORyijEsAchiTdkClBRmVnJkzoa/+tPWq/KlQ+iYdj6HeErJq8924JUxAfDQCcsin8S5YHkfDWLbDYtU2Y3ofAqWy571ptOb4S6zRfcE+4bUyT4pSINUVAdFS1MuOUcIOCygJuoyDBlUKW+700= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=at5+gohF; arc=none smtp.client-ip=209.85.160.49 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Received: by mail-oa1-f49.google.com with SMTP id 586e51a60fabf-43bf9548df4so1250030fac.0 for ; Wed, 02 Sep 2026 12:28:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1788377319; x=1788982119; darn=lists.linux.dev; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :content-type:mime-version:subject:date:from:from:to:cc:subject:date :message-id:reply-to:content-type; bh=QMCbMlmB432oqXei5UybzmEnI0WWfLuR2BGyq3YWjxU=; b=at5+gohF2T9p/kgEdq3G1aCghavQgjS35aYtLKWMozQZFGV77IDUMq1FiwxSVJ9RWs 4SFrWfTVmEnPp5w12/xVfsdiBy8KGa5hOsWq1i/PXCpWSo7uPQp+M9a6puow1eWhFlom ZieSTD/cmbo0SEEMZ6iz53dpcRjslGDYBw+wDwgYxIRG3h81w3S7gVvbZEm6cKF4fJQQ llJASDWHvqJaWOccCs/AvQlc672B6/OL2h2XJZlbARHTeSKTSJI1YQS1OgQyCXdcQUkY z6Dp3BmBjk1v9OEJqhEi4B5lLnsS4VnrBauUhViu8nj/iCmnykxDOW1iVu4TjrcHvJct YFmw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1788377319; x=1788982119; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :content-type:mime-version:subject:date:from:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=QMCbMlmB432oqXei5UybzmEnI0WWfLuR2BGyq3YWjxU=; b=JY+WX0AzJ4Wj6Uc3g8OhilPCOJRFq5VP7/pNZPmg3BzuHbPY3TAiR9pXskYEmDxFd6 /baf+OIUTmE5G5mD6849SCLFXsjCPjljURFZ1mhRvHGvwTQc52smDfOOzviAVEeFNUVR 9MXS1jDy4PsOKqjcKJJQK1w2pLZNxST772SrXPRx7u5DIiV7FPWD2dOd9Ix2W6xiUFQw oVkKbRD67AKNYoNwkFcZ70x78GvY6USHRYPksXoYPQF+Duhesga0wH4dOYbun8Fpvv+7 g08E7QInjxxZPGewuBwmgwgCnszDqHCOjHp/mF5ZYbaNuMycTVyUL0gKpW/7OZ4R3aqQ Abqw== X-Forwarded-Encrypted: i=1; AHgh+RoZeRDgY1UwYD+ctFVKt9TqiEWwtrjr/iv3ZFJCrhYTTOnIhsLByKhL7Lb2ajni2P+4UDcL/g4PkfVxNg==@lists.linux.dev X-Gm-Message-State: AFuF++n/P2zaC8VTzrmRPE99PvP0m0lZldPQUFYkrClfyR79Oh8VrcG4 K7hhYyw2vt20eNRsl9gruXxO7znwIDxbaUeBG9OC7IXQvjBGWmRyoSVp X-Gm-Gg: AYBFou3kR4LaZUL0AcDdWzsGsyN0FxDn41B/cs8AA3uFsVUaV/4JG8bO9nRc55vNrYo oCZLfzXEMuo83U8VVCM/Y4zH0kbY4yAw1nDmrjg5jtmbwJ2AdtWB5TIIwDh0PdesnL1SqKJsgHj cjgfFe232z4mFUaMk97NjBlfbZ3o70/0mYrKGuVOKrY/HYfHIr8Mr+s3kv0uG7x/BgSpaP2kqpU pBEaRGZa8jO4EyDON2qJ18WkPf2PUaeK0Vr4UdeU9+FQTPh7cMqCKhJuPdl+moNAKra5p+wGbgZ 2qoCXGce5nGpJ+HwLEJIor6/Z7HASS2Ltkk6mTYDAPGaa7qvQpUSAvP8wrRAxo6fWKeblrLKM9g ReJ7wHK8XG59SyQZswzbs1kKcSw//Udcml1WU6P1/yelztbVOo0WzHdokdLjo5aVP6ZwNW0r1mA TFV60XmOdr/+M9i7Q0zRiQnqLhQ98WM2/uAxHl4lp5YpnuUdg2IFaUB9Z/Tf7sdWd9krw8E/Nl4 Kgxpwuq1uF+kb0wE5t3b4UOXW2gCME6nu+tN893t7+vEPkv3UpUZ2mMUwWE1+x3uc4dpyJ6nem1 61nxvu0L8pZv9H4HUIBAwejopXI9FP8BgYrYBTAk13M3ccWUfFgqObzIdmnTT4YZAtFlrMYNk/X mFygbb7/3OMw9BArx0Es= X-Received: by 2002:a05:6870:1426:b0:46a:dfdc:c77a with SMTP id 586e51a60fabf-46f86ce6964mr6864969fac.10.1788377318780; Wed, 02 Sep 2026 12:28:38 -0700 (PDT) Received: from [127.0.1.1] (184-96-151-165.hlrn.qwest.net. [184.96.151.165]) by smtp.gmail.com with ESMTPSA id 586e51a60fabf-46f30baa0d4sm4932181fac.6.2026.09.02.12.28.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 02 Sep 2026 12:28:37 -0700 (PDT) From: James Hilliard Date: Wed, 02 Sep 2026 13:28:24 -0600 Subject: [PATCH v8 1/2] dt-bindings: mfd: x-powers: Add AC200 Precedence: bulk X-Mailing-List: linux-sunxi@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20260902-submit-ac200-mfd-v8-1-2aa06720b8ac@gmail.com> References: <20260902-submit-ac200-mfd-v8-0-2aa06720b8ac@gmail.com> In-Reply-To: <20260902-submit-ac200-mfd-v8-0-2aa06720b8ac@gmail.com> To: Lee Jones , Arnd Bergmann , Rob Herring , Krzysztof Kozlowski , Conor Dooley , James Hilliard Cc: Andrew Lunn , "Jagielski, Jedrzej" , Andre Przywara , Chen-Yu Tsai , Jernej Skrabec , linux-sunxi@lists.linux.dev, mfd@lists.linux.dev, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Krzysztof Kozlowski X-Mailer: b4 0.15.2 X-Rspamd-Server: rspamd-worker-8404 X-Spamd-Result: default: False [-1.16 / 15.00]; BAYES_HAM(-5.50)[100.00%]; RBL_SENDERSCORE(2.00)[172.234.253.10:from]; SUSPICIOUS_RECIPS(1.50)[]; DMARC_POLICY_SOFTFAIL(1.00)[gmail.com : SPF not aligned (relaxed), No valid DKIM,none]; MAILLIST(-0.15)[generic]; MIME_GOOD(-0.10)[text/plain]; BAD_REP_POLICIES(0.10)[]; HAS_LIST_UNSUB(-0.01)[]; FROM_HAS_DN(0.00)[]; FORGED_RECIPIENTS_MAILLIST(0.00)[]; FORGED_SENDER_MAILLIST(0.00)[]; PRECEDENCE_BULK(0.00)[]; TAGGED_RCPT(0.00)[dt]; FREEMAIL_CC(0.00)[lunn.ch,intel.com,arm.com,kernel.org,gmail.com,lists.linux.dev,vger.kernel.org,oss.qualcomm.com]; RCPT_COUNT_TWELVE(0.00)[16]; DBL_BLOCKED_OPENRESOLVER(0.00)[0.0.0.10:email,qualcomm.com:email,devicetree.org:url,sea.lore.kernel.org:rdns,sea.lore.kernel.org:helo]; RCVD_COUNT_FIVE(0.00)[6]; FROM_NEQ_ENVFROM(0.00)[jameshilliard1@gmail.com,linux-sunxi@lists.linux.dev]; TAGGED_FROM(0.00)[bounces-25499-noreply=patchwork.local]; FREEMAIL_FROM(0.00)[gmail.com]; R_SPF_ALLOW(0.00)[+ip4:172.234.253.10]; TO_DN_SOME(0.00)[]; RBL_SPAMHAUS_BLOCKED_OPENRESOLVER(0.00)[172.234.253.10:from]; RECEIVED_SPAMHAUS_BLOCKED_OPENRESOLVER(0.00)[100.90.174.1:received]; ASN(0.00)[asn:63949, ipnet:172.234.224.0/19, country:SG]; FREEMAIL_TO(0.00)[kernel.org,arndb.de,gmail.com]; MIME_TRACE(0.00)[0:+]; MID_RHS_MATCH_FROM(0.00)[]; RECEIVED_SPAMHAUS_PBL(0.00)[184.96.151.165:received]; ARC_ALLOW(0.00)[subspace.kernel.org:s=arc-20240116:i=1]; RCVD_TLS_LAST(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[] X-Rspamd-Queue-Id: BFFBE1C0588 X-MORS-Enabled: yes X-MORS-DOMAIN: patchwork.local X-MORS-HOSTING: hosting172546 X-MORS-USER: hosting172546 X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= The AC200 is an I2C-controlled mixed-signal companion IC containing audio, video, RTC and Fast Ethernet PHY functions. Describe the parent device and its shared input clock. The Ethernet PHY is represented by a PHY package on its MDIO bus, with a phandle back to this device for access to the package control registers, so it does not require an MFD child node. Function-specific supplies belong to their consumer bindings rather than the shared parent. The input clock must run at 24 or 27 MHz when the Ethernet PHY is used, matching the rates encoded by its documented clock selector. Reviewed-by: Krzysztof Kozlowski Signed-off-by: James Hilliard --- .../devicetree/bindings/mfd/x-powers,ac200.yaml | 49 ++++++++++++++++++++++ 1 file changed, 49 insertions(+) diff --git a/Documentation/devicetree/bindings/mfd/x-powers,ac200.yaml b/Documentation/devicetree/bindings/mfd/x-powers,ac200.yaml new file mode 100644 index 000000000000..609831b15c80 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/x-powers,ac200.yaml @@ -0,0 +1,49 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mfd/x-powers,ac200.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: X-Powers AC200 mixed-signal IC + +maintainers: + - James Hilliard + +description: + The AC200 is a mixed-signal companion IC containing audio, video, RTC and + Fast Ethernet PHY functions. Its control registers are accessed over I2C. + +properties: + compatible: + const: x-powers,ac200 + + reg: + maxItems: 1 + + clocks: + maxItems: 1 + description: + AC200 input clock. When using the Ethernet PHY, its configured rate must + be 24 or 27 MHz, matching the rates encoded by the documented EPHY clock + selector. + +required: + - compatible + - reg + - clocks + +additionalProperties: false + +examples: + - | + i2c { + #address-cells = <1>; + #size-cells = <0>; + + mixed-signal@10 { + compatible = "x-powers,ac200"; + reg = <0x10>; + clocks = <&pwm 5>; + }; + }; +... From patchwork Wed Sep 2 19:28:25 2026 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: James Hilliard X-Patchwork-Id: 3151 Return-Path: X-Original-To: noreply@patchwork.local Delivered-To: noreply@patchwork.local Received: from sin.lore.kernel.org (sin.lore.kernel.org [104.64.211.4]) by mxe881.netcup.net (Postfix) with ESMTPS id 3146D1C071B for ; Wed, 2 Sep 2026 22:25:36 +0200 (CEST) Authentication-Results: mxe881; dkim=pass header.d=gmail.com; spf=pass (sender IP is 104.64.211.4) smtp.mailfrom=linux-sunxi+bounces-25501-noreply=patchwork.local@lists.linux.dev smtp.helo=sin.lore.kernel.org Received-SPF: pass (mxe881: domain of lists.linux.dev designates 104.64.211.4 as permitted sender) client-ip=104.64.211.4; envelope-from=linux-sunxi+bounces-25501-noreply=patchwork.local@lists.linux.dev; helo=sin.lore.kernel.org; Received: from smtp.subspace.kernel.org (conduit.subspace.kernel.org [100.90.174.1]) by sin.lore.kernel.org (Postfix) with ESMTP id 6B5073F360 for ; Wed, 2 Sep 2026 19:29:54 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id D1D37395AFB; Wed, 2 Sep 2026 19:28:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="UPXOD2Hb" X-Original-To: linux-sunxi@lists.linux.dev Received: from mail-oi1-f172.google.com (mail-oi1-f172.google.com [209.85.167.172]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3A4D03803CF for ; Wed, 2 Sep 2026 19:28:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.167.172 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788377338; cv=none; b=luJyy4VfYY6OG2QVmjHAdrW4cpoazeP3XcksYDy3MCkEhurSv+CQNjnFKyzEcWz7EZxeJvlDFSoTlIEcNCKnbug+Z/4xp5pO+LcbCFH6XekfO8Vx3mF6W+6R0cT8ROgi3FlajoZ7D9mLq0jgNAz3lwLeyvo4UhVY6dxAXpKwblg= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788377338; c=relaxed/simple; bh=y0NxW0k15f6y/xEBJQYLSpmIltouG64hV/iDPd4IdpA=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=YsR+BaUwZLzogwlKflLSrC01hPT0rsD6ynz8V/M+DMMAoLqc14VAYV5IIoHHybVW6GGKdsKzAySaZhpiF2TIpH0SkWASPLhVioa8usClDbnN3pbFqM0KB6duIcJ/M8TML79TQSUTuCxtrGg1RbAfKsZFeDKQ9x8y/EBnRTixddc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=UPXOD2Hb; arc=none smtp.client-ip=209.85.167.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Received: by mail-oi1-f172.google.com with SMTP id 5614622812f47-4a40bcc8d69so1237510b6e.3 for ; Wed, 02 Sep 2026 12:28:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1788377321; x=1788982121; darn=lists.linux.dev; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :content-type:mime-version:subject:date:from:from:to:cc:subject:date :message-id:reply-to:content-type; bh=sKMtJXFkj0ikZheuQpeLvqIbR43z+P6lPFG8SqKjAYQ=; b=UPXOD2HbA7XwdGznmQMbR5gL2kxsh7BvozQBo+r9FUzDLp2d2eksPE0X215wceRwYr 4TLLAT7sYY0x3zyjQY4Lv+hdQpxYfWbvlOhbBJdkyQwxgPqGYO69+vayoMVrGVTd+Vpl sNLCCIELNm8LfIzV1PqHOCHTIc2iwvqXGMj3tA3wtuo207RpkB/1IJcAhbSgF8eFLGQK bDLHp+3fgMfuS69St4H195GV9zDqL+aWF7Pi4rvz5xCcVWqI+cbV1ZMdcCl0OX5DrNoA +Q4FZ8Bzp1ebRXxH7Ot/sIiDknflCfec6q0AsBGESclNjmxl/7MizTNTyVFkfDl6tpYA zhbA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1788377321; x=1788982121; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :content-type:mime-version:subject:date:from:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=sKMtJXFkj0ikZheuQpeLvqIbR43z+P6lPFG8SqKjAYQ=; b=AyT+b5NHea7DUHnhuL0fxqdb27IpUY7D+SZL1VqtPo37M4dZn8vWHd7RFhXTCogTkK 524VMf9wloJeIXIeMXdRuMrTwBA8Eeuj8kOCk0EC+zKwo5hALYcCtvgIlXHR48IslpBr xLAvmAhMiyzzXo2TikFgtC3s37Bw5w9+x/YCu+usOyT2STsd4LQv1uJx1SjGbrmaCFYc EloDgNEQiSF3zGEP4kZH6RgZLQU/Whfi7+Bwz1PxW9o/nKoiOG+L+vVwqyoXCvoJDPFo t8MWVTznOky89UBuPSK6BMm2XDr+5IKdenCxUC3Ji7D5rr9STWnYN//64uoNXGut1pCN 3PHw== X-Forwarded-Encrypted: i=1; AHgh+RonEbPDw9siqSItRMDpQfwGzJZNHtNAyUB2XuTOI798nZuRsaGxFfNXvaqftto4CrZJIEOIt0E2EBc/rw==@lists.linux.dev X-Gm-Message-State: AFuF++mriFPWvp0Nb0GD7Q9PK8VZjQCH00Ea9rCwigEWgRtROhxmkKFV lcr+CPpi2ZKkIubxPTH+cfeylrZ2iZKW8CuCo2H/gJggUM3sMne90CG+ X-Gm-Gg: AR+sD11vwg1ab4+yb8tbu0xggAH8dCvjGthxoRRf3BiiKPYIlD+DrCSq4fn5DguZDRa CtN0tnComm2gwhs0GodME9D+t+07a7+l6R6PT1X2gYL89Vadm4FGl5CUZ85k5onnUOsiqs4REdf uKdRkb2NEFui0kyNR4nJEunAIIc+i0xC/5MYr0sVzRWLD8TvdxfkE2bPP1wKVjNIJCezzy3RwRD RhUJFe+zzhJEnjCKxsE83ERg8OiY+X3GvJsWBxOsdgh1hkL5wgcgvXMMEjnD8KkvXykXbIaoVut XX7rwlFN9k2UEBTsRuPwKbHeGJXQqi35CY/X4Di96RZMubZr/6XLjbsH5n3U7WjmW6fPVwgGyxd KxOqGVVmx78QbZSRP4VLqLO3f4Yy28zYbbah6OvgNuy8dKNXT/McrvULtfQLy8iwLH0ThWx0ZA3 TK3zZRAI4eJQP2zoipIJjyYxuQkr19jHXoyC5CPU+lRygZX86lJBzpVOnegbOto3uM9LffEegpE 8fwlUR2cmOqDCXKNd2FzZPYHUWzB2xitRWy1O2v2rEwemYMIaYlNzlSiBkfDpsZCnOzfawadz33 g22ySSPK4vjQ8JmytQxUuYi+aykIAhXB3DoQ6NcnTHX5X8Hq1limclFr6wVoGWE7q33Wh2I8Abj /Ol8ACfFVpuhNVY/ihqc= X-Received: by 2002:a05:6808:1905:b0:4b2:8d7b:41b8 with SMTP id 5614622812f47-4b6bf07c2damr5955510b6e.18.1788377320618; Wed, 02 Sep 2026 12:28:40 -0700 (PDT) Received: from [127.0.1.1] (184-96-151-165.hlrn.qwest.net. [184.96.151.165]) by smtp.gmail.com with ESMTPSA id 586e51a60fabf-46f30baa0d4sm4932181fac.6.2026.09.02.12.28.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 02 Sep 2026 12:28:39 -0700 (PDT) From: James Hilliard Date: Wed, 02 Sep 2026 13:28:25 -0600 Subject: [PATCH v8 2/2] mfd: ac200: Add X-Powers AC200 support Precedence: bulk X-Mailing-List: linux-sunxi@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20260902-submit-ac200-mfd-v8-2-2aa06720b8ac@gmail.com> References: <20260902-submit-ac200-mfd-v8-0-2aa06720b8ac@gmail.com> In-Reply-To: <20260902-submit-ac200-mfd-v8-0-2aa06720b8ac@gmail.com> To: Lee Jones , Arnd Bergmann , Rob Herring , Krzysztof Kozlowski , Conor Dooley , James Hilliard Cc: Andrew Lunn , "Jagielski, Jedrzej" , Andre Przywara , Chen-Yu Tsai , Jernej Skrabec , linux-sunxi@lists.linux.dev, mfd@lists.linux.dev, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org X-Mailer: b4 0.15.2 X-Rspamd-Server: rspamd-worker-8404 X-Spamd-Result: default: False [-1.16 / 15.00]; BAYES_HAM(-5.50)[100.00%]; RBL_SENDERSCORE(2.00)[104.64.211.4:from]; SUSPICIOUS_RECIPS(1.50)[]; DMARC_POLICY_SOFTFAIL(1.00)[gmail.com : SPF not aligned (relaxed), No valid DKIM,none]; MAILLIST(-0.15)[generic]; BAD_REP_POLICIES(0.10)[]; MIME_GOOD(-0.10)[text/plain]; HAS_LIST_UNSUB(-0.01)[]; RCVD_COUNT_FIVE(0.00)[6]; FROM_HAS_DN(0.00)[]; FORGED_SENDER_MAILLIST(0.00)[]; RCPT_COUNT_TWELVE(0.00)[15]; PRECEDENCE_BULK(0.00)[]; FREEMAIL_CC(0.00)[lunn.ch,intel.com,arm.com,kernel.org,gmail.com,lists.linux.dev,vger.kernel.org]; TAGGED_RCPT(0.00)[dt]; DBL_BLOCKED_OPENRESOLVER(0.00)[sin.lore.kernel.org:rdns,sin.lore.kernel.org:helo]; FROM_NEQ_ENVFROM(0.00)[jameshilliard1@gmail.com,linux-sunxi@lists.linux.dev]; TAGGED_FROM(0.00)[bounces-25501-noreply=patchwork.local]; FREEMAIL_FROM(0.00)[gmail.com]; R_SPF_ALLOW(0.00)[+ip4:104.64.211.4]; TO_DN_SOME(0.00)[]; RBL_SPAMHAUS_BLOCKED_OPENRESOLVER(0.00)[104.64.211.4:from]; RECEIVED_SPAMHAUS_BLOCKED_OPENRESOLVER(0.00)[100.90.174.1:received,184.96.151.165:received]; ASN(0.00)[asn:63949, ipnet:104.64.192.0/19, country:SG]; FREEMAIL_TO(0.00)[kernel.org,arndb.de,gmail.com]; MIME_TRACE(0.00)[0:+]; MID_RHS_MATCH_FROM(0.00)[]; FORGED_RECIPIENTS_MAILLIST(0.00)[]; ARC_ALLOW(0.00)[subspace.kernel.org:s=arc-20240116:i=1]; RCVD_TLS_LAST(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[] X-Rspamd-Queue-Id: 3146D1C071B X-MORS-Enabled: yes X-MORS-DOMAIN: patchwork.local X-MORS-HOSTING: hosting172546 X-MORS-USER: hosting172546 X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= The X-Powers AC200 is a mixed-signal companion IC with a paged register map accessed over I2C. Enable and rate-lock the shared input clock, wait 40 ms before the first register access, initialize the paged regmap and reset the chip. Assert reset again during driver removal and system shutdown. The Ethernet PHY is enumerated on its MDIO bus rather than as an MFD child. It follows the x-powers,ac200 phandle and uses this regmap for ancillary package-control access. Other AC200 functions can be added as MFD children. Cache only the common page selector. Individual functions can reset independently and invalidate their other registers, so leave all functional registers volatile. Signed-off-by: James Hilliard --- drivers/mfd/Kconfig | 11 +++++ drivers/mfd/Makefile | 1 + drivers/mfd/ac200.c | 136 +++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 148 insertions(+) diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index e4fd4572472f..cac3fff5aee9 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -205,6 +205,17 @@ config MFD_AC100 This driver include only the core APIs. You have to select individual components like codecs or RTC under the corresponding menus. +config MFD_AC200 + tristate "X-Powers AC200" + depends on I2C + depends on OF + select REGMAP_I2C + help + Support for the X-Powers AC200 mixed-signal companion IC. The AC200 + contains audio, video, RTC and Fast Ethernet PHY functions and is + co-packaged with some Allwinner H6 and H616 SoCs. This driver provides + the shared register access used by the individual function drivers. + config MFD_AXP20X tristate select MFD_CORE diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index 72d3944b0ad8..f8101d2a9ce9 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -150,6 +150,7 @@ obj-$(CONFIG_MFD_DA9052_SPI) += da9052-spi.o obj-$(CONFIG_MFD_DA9052_I2C) += da9052-i2c.o obj-$(CONFIG_MFD_AC100) += ac100.o +obj-$(CONFIG_MFD_AC200) += ac200.o obj-$(CONFIG_MFD_AXP20X) += axp20x.o obj-$(CONFIG_MFD_AXP20X_I2C) += axp20x-i2c.o obj-$(CONFIG_MFD_AXP20X_RSB) += axp20x-rsb.o diff --git a/drivers/mfd/ac200.c b/drivers/mfd/ac200.c new file mode 100644 index 000000000000..8445a460ef6c --- /dev/null +++ b/drivers/mfd/ac200.c @@ -0,0 +1,136 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * MFD core driver for the X-Powers AC200 + * + * Copyright (C) 2019 Jernej Skrabec + * Copyright (C) 2026 James Hilliard + */ + +#include +#include +#include +#include +#include + +#define AC200_SYS_CONTROL_REG 0x0002 +#define AC200_SYS_CONTROL_CHIP_RESET_DEASSERT BIT(0) + +/* Interface register accessible from every register page. */ +#define AC200_TWI_REG_ADDR_H 0x00fe +#define AC200_MAX_REG 0xa1f2 + +static const struct regmap_range_cfg ac200_range_cfg[] = { + { + .range_max = AC200_MAX_REG, + .selector_reg = AC200_TWI_REG_ADDR_H, + .selector_mask = 0xff, + .window_len = 256, + }, +}; + +/* + * Each AC200 sub-block can reset independently, invalidating its register + * contents without regmap's knowledge. Cache only the common page selector; + * this avoids a selector read-modify-write for every access on the same page + * without ever returning stale functional-register values. + */ +static bool ac200_volatile_reg(struct device *dev, unsigned int reg) +{ + return reg != AC200_TWI_REG_ADDR_H; +} + +static const struct regmap_config ac200_regmap_config = { + .name = "ac200", + .reg_bits = 8, + .reg_stride = 2, + .val_bits = 16, + .ranges = ac200_range_cfg, + .num_ranges = ARRAY_SIZE(ac200_range_cfg), + .max_register = AC200_MAX_REG, + .volatile_reg = ac200_volatile_reg, + .cache_type = REGCACHE_MAPLE, +}; + +static void ac200_disable(struct regmap *regmap) +{ + regmap_write(regmap, AC200_SYS_CONTROL_REG, 0); +} + +static int ac200_probe(struct i2c_client *client) +{ + struct device *dev = &client->dev; + struct regmap *regmap; + struct clk *clk; + int ret; + + clk = devm_clk_get_enabled(dev, NULL); + if (IS_ERR(clk)) + return dev_err_probe(dev, PTR_ERR(clk), + "failed to enable input clock\n"); + + ret = devm_clk_rate_exclusive_get(dev, clk); + if (ret) + return dev_err_probe(dev, ret, "failed to lock clock rate\n"); + + regmap = devm_regmap_init_i2c(client, &ac200_regmap_config); + if (IS_ERR(regmap)) + return dev_err_probe(dev, PTR_ERR(regmap), + "failed to initialize regmap\n"); + + i2c_set_clientdata(client, regmap); + + /* + * No minimum delay is documented. Match the vendor driver's 40 ms delay + * before its first AC200 register access after enabling the input clock. + */ + msleep(40); + + ret = regmap_write(regmap, AC200_SYS_CONTROL_REG, 0); + if (ret) + return ret; + + ret = regmap_write(regmap, AC200_SYS_CONTROL_REG, + AC200_SYS_CONTROL_CHIP_RESET_DEASSERT); + if (ret) + return ret; + + return 0; +} + +static void ac200_remove(struct i2c_client *client) +{ + ac200_disable(i2c_get_clientdata(client)); +} + +static void ac200_shutdown(struct i2c_client *client) +{ + ac200_disable(i2c_get_clientdata(client)); +} + +static const struct of_device_id ac200_of_match[] = { + { .compatible = "x-powers,ac200" }, + { } +}; +MODULE_DEVICE_TABLE(of, ac200_of_match); + +static const struct i2c_device_id ac200_i2c_ids[] = { + { .name = "ac200" }, + { } +}; +MODULE_DEVICE_TABLE(i2c, ac200_i2c_ids); + +static struct i2c_driver ac200_driver = { + .driver = { + .name = "ac200", + .of_match_table = ac200_of_match, + }, + .probe = ac200_probe, + .remove = ac200_remove, + .shutdown = ac200_shutdown, + .id_table = ac200_i2c_ids, +}; +module_i2c_driver(ac200_driver); + +MODULE_AUTHOR("James Hilliard "); +MODULE_DESCRIPTION("X-Powers AC200 MFD core driver"); +MODULE_LICENSE("GPL");