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 X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 17D77C3276D for ; Thu, 2 Jan 2020 22:47:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D4E3120848 for ; Thu, 2 Jan 2020 22:47:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1578005250; bh=GEVCxo6r7TGeTE0NxgYpqsSEpzwvh6AwLJkbfdciJM8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=0XM1UxDRz+khAFuU0xXXy0Vkki35Zntzzt8K2YBU2exQx5HOhtVKVu+wonGzzvDRM c5h+5pCp1SlDhhCOlehW5eWRrkl+rllgJMDPFPMfaabpbIpQi8qXFTgdznAacvmIx5 2RydjuzrzFocsNC1lRhuE0PBGrS/QfChL3p3ju/g= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730062AbgABW3g (ORCPT ); Thu, 2 Jan 2020 17:29:36 -0500 Received: from mail.kernel.org ([198.145.29.99]:60674 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730048AbgABW3c (ORCPT ); Thu, 2 Jan 2020 17:29:32 -0500 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 7B3BA20866; Thu, 2 Jan 2020 22:29:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1578004171; bh=GEVCxo6r7TGeTE0NxgYpqsSEpzwvh6AwLJkbfdciJM8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=CQXfWPWlicyyDg95Elnf63g2aNL57MTt3vN3zdFf3TsVw293kslAECSBqnncbz+hI gOg3suXo+NvYcDXGs0Stk73jiaj/4cRuIOyOl0G0u/g0Xoflkwu7/XWI8ZpR8uJmZT 0rVKl6MQ5kVIrVCpP8sdIUOajj5vj/05DLyvNvxU= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Ben Zhang , Curtis Malainey , Mark Brown , Sasha Levin Subject: [PATCH 4.9 067/171] ASoC: rt5677: Mark reg RT5677_PWR_ANLG2 as volatile Date: Thu, 2 Jan 2020 23:06:38 +0100 Message-Id: <20200102220556.172889392@linuxfoundation.org> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200102220546.960200039@linuxfoundation.org> References: <20200102220546.960200039@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Ben Zhang [ Upstream commit eabf424f7b60246c76dcb0ea6f1e83ef9abbeaa6 ] The codec dies when RT5677_PWR_ANLG2(MX-64h) is set to 0xACE1 while it's streaming audio over SPI. The DSP firmware turns on PLL2 (MX-64 bit 8) when SPI streaming starts. However regmap does not believe that register can change by itself. When BST1 (bit 15) is turned on with regmap_update_bits(), it doesn't read the register first before write, so PLL2 power bit is cleared by accident. Marking MX-64h as volatile in regmap solved the issue. Signed-off-by: Ben Zhang Signed-off-by: Curtis Malainey Link: https://lore.kernel.org/r/20191106011335.223061-6-cujomalainey@chromium.org Signed-off-by: Mark Brown Signed-off-by: Sasha Levin --- sound/soc/codecs/rt5677.c | 1 + 1 file changed, 1 insertion(+) diff --git a/sound/soc/codecs/rt5677.c b/sound/soc/codecs/rt5677.c index 65ac4518ad06..49ab26e69f2f 100644 --- a/sound/soc/codecs/rt5677.c +++ b/sound/soc/codecs/rt5677.c @@ -305,6 +305,7 @@ static bool rt5677_volatile_register(struct device *dev, unsigned int reg) case RT5677_I2C_MASTER_CTRL7: case RT5677_I2C_MASTER_CTRL8: case RT5677_HAP_GENE_CTRL2: + case RT5677_PWR_ANLG2: /* Modified by DSP firmware */ case RT5677_PWR_DSP_ST: case RT5677_PRIV_DATA: case RT5677_ASRC_22: -- 2.20.1