From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 68AEC210E8 for ; Wed, 4 Oct 2023 18:32:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="dqaEmQS5" Received: by smtp.kernel.org (Postfix) with ESMTPSA id DDA4EC433C9; Wed, 4 Oct 2023 18:32:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1696444349; bh=qfonXRgdqqJAQeC6EAbLypPSqIF6qrkzv44gXPatvr4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=dqaEmQS5rR9wMAZ5OE6tBKapCHTz0JzlU+VRijgcDHhRGaNnaMaPlFoP3ytmZyjxQ 6Ez5a/86qEqeL5NzecWQXaFYP3M1JWfUF5BCDHLMcTxnsxolYPzPesgvL2eR7tfEHJ Ol1hvXWjgc8SfLRRTou5ylct/3M35/q3xuRk2nTc= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Chancel Liu , Shengjiu Wang , Mark Brown , Sasha Levin Subject: [PATCH 6.5 219/321] ASoC: imx-rpmsg: Set ignore_pmdown_time for dai_link Date: Wed, 4 Oct 2023 19:56:04 +0200 Message-ID: <20231004175239.385683118@linuxfoundation.org> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231004175229.211487444@linuxfoundation.org> References: <20231004175229.211487444@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.5-stable review patch. If anyone has any objections, please let me know. ------------------ From: Chancel Liu [ Upstream commit fac58baf8fcfcd7481e8f6d60206ce2a47c1476c ] i.MX rpmsg sound cards work on codec slave mode. MCLK will be disabled by CPU DAI driver in hw_free(). Some codec requires MCLK present at power up/down sequence. So need to set ignore_pmdown_time to power down codec immediately before MCLK is turned off. Take WM8962 as an example, if MCLK is disabled before DAPM power down playback stream, FIFO error will arise in WM8962 which will have bad impact on playback next. Signed-off-by: Chancel Liu Acked-by: Shengjiu Wang Link: https://lore.kernel.org/r/20230913102656.2966757-1-chancel.liu@nxp.com Signed-off-by: Mark Brown Signed-off-by: Sasha Levin --- sound/soc/fsl/imx-rpmsg.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/sound/soc/fsl/imx-rpmsg.c b/sound/soc/fsl/imx-rpmsg.c index 3c7b95db2eacc..b578f9a32d7f1 100644 --- a/sound/soc/fsl/imx-rpmsg.c +++ b/sound/soc/fsl/imx-rpmsg.c @@ -89,6 +89,14 @@ static int imx_rpmsg_probe(struct platform_device *pdev) SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBC_CFC; + /* + * i.MX rpmsg sound cards work on codec slave mode. MCLK will be + * disabled by CPU DAI driver in hw_free(). Some codec requires MCLK + * present at power up/down sequence. So need to set ignore_pmdown_time + * to power down codec immediately before MCLK is turned off. + */ + data->dai.ignore_pmdown_time = 1; + /* Optional codec node */ ret = of_parse_phandle_with_fixed_args(np, "audio-codec", 0, 0, &args); if (ret) { -- 2.40.1