From patchwork Fri Mar 25 04:14:48 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dylan Hung X-Patchwork-Id: 12791246 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 AE88BC433F5 for ; Fri, 25 Mar 2022 04:14:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244160AbiCYEP4 (ORCPT ); Fri, 25 Mar 2022 00:15:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50158 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232001AbiCYEPz (ORCPT ); Fri, 25 Mar 2022 00:15:55 -0400 Received: from twspam01.aspeedtech.com (twspam01.aspeedtech.com [211.20.114.71]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8BE4B3ED35 for ; Thu, 24 Mar 2022 21:14:20 -0700 (PDT) Received: from mail.aspeedtech.com ([192.168.0.24]) by twspam01.aspeedtech.com with ESMTP id 22P43YWi035810; Fri, 25 Mar 2022 12:03:34 +0800 (GMT-8) (envelope-from dylan_hung@aspeedtech.com) Received: from DylanHung-PC.aspeed.com (192.168.2.216) by TWMBX02.aspeed.com (192.168.0.24) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 25 Mar 2022 12:14:11 +0800 From: Dylan Hung To: , , , , , , , , , , , , , , CC: Subject: [PATCH v3 0/3] Add reset deassertion for Aspeed MDIO Date: Fri, 25 Mar 2022 12:14:48 +0800 Message-ID: <20220325041451.894-1-dylan_hung@aspeedtech.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-Originating-IP: [192.168.2.216] X-ClientProxiedBy: TWMBX02.aspeed.com (192.168.0.24) To TWMBX02.aspeed.com (192.168.0.24) X-DNSRBL: X-MAIL: twspam01.aspeedtech.com 22P43YWi035810 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Add missing reset deassertion for Aspeed MDIO bus controller. The reset is asserted by the hardware when power-on so the driver only needs to deassert it. To be able to work with the old DT blobs, the reset is optional since it may be deasserted by the bootloader or the previous kernel. V3: - remove reset property from the required list of the device tree bindings - remove "Cc: stable@vger.kernel.org" from the commit messages - add more description in the commit message of the dt-binding V2: - add reset property in the device tree bindings - add reset assertion in the error path and driver remove Dylan Hung (3): dt-bindings: net: add reset property for aspeed, ast2600-mdio binding net: mdio: add reset control for Aspeed MDIO ARM: dts: aspeed: add reset properties into MDIO nodes .../bindings/net/aspeed,ast2600-mdio.yaml | 5 +++++ arch/arm/boot/dts/aspeed-g6.dtsi | 4 ++++ drivers/net/mdio/mdio-aspeed.c | 15 ++++++++++++++- 3 files changed, 23 insertions(+), 1 deletion(-)