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 lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 513F9C352A1 for ; Tue, 6 Dec 2022 09:51:14 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4NRFzh5nr4z3bgG for ; Tue, 6 Dec 2022 20:51:12 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=DEOzs6i4; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=kernel.org (client-ip=145.40.68.75; helo=ams.source.kernel.org; envelope-from=sashal@kernel.org; receiver=) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=DEOzs6i4; dkim-atps=neutral Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4NRFxj1nKmz2xZ7 for ; Tue, 6 Dec 2022 20:49:29 +1100 (AEDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 43656B818E8; Tue, 6 Dec 2022 09:49:25 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0901BC43143; Tue, 6 Dec 2022 09:49:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1670320164; bh=Elk+bS2olFo5I3kfhcfCnppXGyQSQXi3NhZl/A9ocb0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=DEOzs6i4GaAWa86vFfndtgNVOyyGDHC9AUYZDpmyhSgbx2s46mKXoZIbri2K1loeO u92FrrG4ShJuJfCfPAn5is5AAUSEuZadc9+NVeTlOT16FUHMzajKkRIobVOmM1BS1+ dzD73z9lvYci0PEcXipqVFNamU/uoqLC5dKq0G1f4+6/B36f4gOKlzY3GXChPqinTg jMyYA15eg9qOKHZUk6sXiMgkfAYKF/NUWFS6iVVRGfyoJHIbSAA0AjK6vh42hF6dq3 fCSb7xye0/YXZXeAfUf5YuuVPB7wauyk5hNnYbYzkEyDxkIiTRgc5FKb4TCY6rhrs9 jU76AQClTh33g== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: [PATCH AUTOSEL 6.0 02/13] ASoC: fsl_micfil: explicitly clear CHnF flags Date: Tue, 6 Dec 2022 04:49:05 -0500 Message-Id: <20221206094916.987259-2-sashal@kernel.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20221206094916.987259-1-sashal@kernel.org> References: <20221206094916.987259-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Sasha Levin , alsa-devel@alsa-project.org, Xiubo.Lee@gmail.com, linuxppc-dev@lists.ozlabs.org, Shengjiu Wang , tiwai@suse.com, lgirdwood@gmail.com, perex@perex.cz, Mark Brown , shengjiu.wang@gmail.com Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" From: Shengjiu Wang [ Upstream commit b776c4a4618ec1b5219d494c423dc142f23c4e8f ] There may be failure when start 1 channel recording after 8 channels recording. The reason is that the CHnF flags are not cleared successfully by software reset. This issue is triggerred by the change of clearing software reset bit. CHnF flags are write 1 clear bits. Clear them by force write. Signed-off-by: Shengjiu Wang Link: https://lore.kernel.org/r/1651925654-32060-2-git-send-email-shengjiu.wang@nxp.com Signed-off-by: Mark Brown Signed-off-by: Sasha Levin --- sound/soc/fsl/fsl_micfil.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/sound/soc/fsl/fsl_micfil.c b/sound/soc/fsl/fsl_micfil.c index 8aa6871e0d42..4b86ef82fd93 100644 --- a/sound/soc/fsl/fsl_micfil.c +++ b/sound/soc/fsl/fsl_micfil.c @@ -205,6 +205,14 @@ static int fsl_micfil_reset(struct device *dev) if (ret) return ret; + /* + * Set SRES should clear CHnF flags, But even add delay here + * the CHnF may not be cleared sometimes, so clear CHnF explicitly. + */ + ret = regmap_write_bits(micfil->regmap, REG_MICFIL_STAT, 0xFF, 0xFF); + if (ret) + return ret; + return 0; } -- 2.35.1