From patchwork Wed Apr 27 03:54:58 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dylan Hung X-Patchwork-Id: 12828272 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 1A70BC433F5 for ; Wed, 27 Apr 2022 03:58:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1356241AbiD0EBP (ORCPT ); Wed, 27 Apr 2022 00:01:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55826 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1357595AbiD0EBF (ORCPT ); Wed, 27 Apr 2022 00:01:05 -0400 Received: from twspam01.aspeedtech.com (twspam01.aspeedtech.com [211.20.114.71]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0DFA471A07; Tue, 26 Apr 2022 20:57:55 -0700 (PDT) Received: from mail.aspeedtech.com ([192.168.0.24]) by twspam01.aspeedtech.com with ESMTP id 23R3gS9v032326; Wed, 27 Apr 2022 11:42:28 +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; Wed, 27 Apr 2022 11:54:58 +0800 From: Dylan Hung To: , , , , , , , , , , , , , , , CC: Subject: [PATCH net-next v6 0/3] Add reset deassertion for Aspeed MDIO Date: Wed, 27 Apr 2022 11:54:58 +0800 Message-ID: <20220427035501.17500-1-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 23R3gS9v032326 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@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. V6: - fix merge conflict for net-next V5: - fix error of dt_binding_check V4: - use ASPEED_RESET_MII instead of hardcoding in dt-binding example 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 | 6 ++++++ arch/arm/boot/dts/aspeed-g6.dtsi | 4 ++++ drivers/net/mdio/mdio-aspeed.c | 15 ++++++++++++++- 3 files changed, 24 insertions(+), 1 deletion(-)