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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7003EC433F5 for ; Mon, 1 Nov 2021 23:18:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 512C860524 for ; Mon, 1 Nov 2021 23:18:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232355AbhKAXU6 (ORCPT ); Mon, 1 Nov 2021 19:20:58 -0400 Received: from mga18.intel.com ([134.134.136.126]:29623 "EHLO mga18.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229618AbhKAXU6 (ORCPT ); Mon, 1 Nov 2021 19:20:58 -0400 X-IronPort-AV: E=McAfee;i="6200,9189,10155"; a="218053501" X-IronPort-AV: E=Sophos;i="5.87,201,1631602800"; d="scan'208";a="218053501" Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Nov 2021 16:18:23 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.87,201,1631602800"; d="scan'208";a="727670697" Received: from maru.jf.intel.com ([10.54.51.77]) by fmsmga005.fm.intel.com with ESMTP; 01 Nov 2021 16:18:23 -0700 From: jae.hyun.yoo@intel.com To: Rob Herring , Corey Minyard , Joel Stanley , Andrew Jeffery , Cedric Le Goater , Haiyue Wang , Jae Hyun Yoo Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-aspeed@lists.ozlabs.org, openipmi-developer@lists.sourceforge.net Subject: [PATCH -next 0/4] Add LCLK control into Aspeed LPC sub drivers Date: Mon, 1 Nov 2021 16:37:47 -0700 Message-Id: <20211101233751.49222-1-jae.hyun.yoo@intel.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org From: Jae Hyun Yoo Hello all, This series is for appliying below fix to all Aspped LPC sub drivers. https://lore.kernel.org/all/20201208091748.1920-1-wangzhiqiang.bj@bytedance.com/ An LPC sub driver can be enabled without using the lpc-ctrl driver or it can be registered ahead of lpc-ctrl depends on each system configuration and this difference introduces that LPC can be enabled without heart beating of LCLK so it causes improper handling on host interrupts when the host sends interrupts in that time frame. Then kernel eventually forcibly disables the interrupt with dumping stack and printing a 'nobody cared this irq' message out. To prevent this issue, all LPC sub drivers should enable LCLK individually so this patch adds clock control logic into the remaining Aspeed LPC sub drivers. Please review this series. Thanks, Jae Jae Hyun Yoo (4): ARM: dts: aspeed: add LCLK setting into LPC IBT node ipmi: bt: add clock control logic ARM: dts: aspeed: add LCLK setting into LPC KCS nodes ipmi: kcs_bmc_aspeed: add clock control logic arch/arm/boot/dts/aspeed-g4.dtsi | 1 + arch/arm/boot/dts/aspeed-g5.dtsi | 5 +++++ arch/arm/boot/dts/aspeed-g6.dtsi | 5 +++++ drivers/char/ipmi/bt-bmc.c | 24 ++++++++++++++++++++++- drivers/char/ipmi/kcs_bmc_aspeed.c | 31 ++++++++++++++++++++++++++---- 5 files changed, 61 insertions(+), 5 deletions(-) -- 2.25.1