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 936B642A8D; Tue, 23 Jan 2024 00:07:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705968458; cv=none; b=iWBYv/6kfdXya5Y+12fqwyBbymPObjIM5kk5xyGzpIuMDOgx0TIU0BEPJWH/JVbk6WX5DOQ+/p0HBrv2OtWtEXimSBE9bfi1pAwM9kWSDInbQbnnnQQGx+yc5XErPXMMWA9MFnBdJPLVw0RJ3IaUg2tsNupA/Ly9cSuLlU2kkRI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705968458; c=relaxed/simple; bh=POjRZA56w6UvqC9BeCY9jTcD4ZRe+704RqH/jsUb4V0=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Vf6o/wK6JRIM8GIuk6U1p14KHhCDwTqtB5vq9cV8xKYbrcmDc79BaJTat2aklg/OdjHuXrxkWU6oYo5xKqnK5PigELKfoFYGbwWh/6dtxd84PgaFy22t04iJCuNn+JpqADmBjovzQItAfpQjP4LbuaDI4esrOtC5OvifhjXWiPE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=GA91k/B9; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="GA91k/B9" Received: by smtp.kernel.org (Postfix) with ESMTPSA id DFE1AC43390; Tue, 23 Jan 2024 00:07:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1705968458; bh=POjRZA56w6UvqC9BeCY9jTcD4ZRe+704RqH/jsUb4V0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=GA91k/B94ZH/TVt54YSW0NbKoPzzxdNXLa7BXhcXrYcs9orA+Jaxgqxfn5yWNxvlI KXxhWPQzMj3f4vZHESwmwH/6gke1Kj44lUV5OEmdKHW4gf99NAFh/kZcbO50e7N/+j u8O9kHB5WVYuFec6EdYQJAsmdTPszQGXhbQAcSc0= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Mark Brown , Codrin Ciubotariu , Sasha Levin Subject: [PATCH 4.19 114/148] Revert "ASoC: atmel: Remove system clock tree configuration for at91sam9g20ek" Date: Mon, 22 Jan 2024 15:57:50 -0800 Message-ID: <20240122235717.083755528@linuxfoundation.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240122235712.442097787@linuxfoundation.org> References: <20240122235712.442097787@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 4.19-stable review patch. If anyone has any objections, please let me know. ------------------ From: Greg Kroah-Hartman This reverts commit 6eb9b4a36d08da0230e6a7712b17eafdfd996991 which is commit c775cbf62ed4911e4f0f23880f01815753123690 upstream. It is reported to cause problems, so drop it from the 5.15.y tree for now. Link: https://lore.kernel.org/r/845b3053-d47b-4717-9665-79b120da133b@sirena.org.uk Reported-by: Mark Brown Cc: Codrin Ciubotariu Cc: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- sound/soc/atmel/sam9g20_wm8731.c | 61 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 61 insertions(+) --- a/sound/soc/atmel/sam9g20_wm8731.c +++ b/sound/soc/atmel/sam9g20_wm8731.c @@ -59,6 +59,35 @@ */ #undef ENABLE_MIC_INPUT +static struct clk *mclk; + +static int at91sam9g20ek_set_bias_level(struct snd_soc_card *card, + struct snd_soc_dapm_context *dapm, + enum snd_soc_bias_level level) +{ + static int mclk_on; + int ret = 0; + + switch (level) { + case SND_SOC_BIAS_ON: + case SND_SOC_BIAS_PREPARE: + if (!mclk_on) + ret = clk_enable(mclk); + if (ret == 0) + mclk_on = 1; + break; + + case SND_SOC_BIAS_OFF: + case SND_SOC_BIAS_STANDBY: + if (mclk_on) + clk_disable(mclk); + mclk_on = 0; + break; + } + + return ret; +} + static const struct snd_soc_dapm_widget at91sam9g20ek_dapm_widgets[] = { SND_SOC_DAPM_MIC("Int Mic", NULL), SND_SOC_DAPM_SPK("Ext Spk", NULL), @@ -117,6 +146,7 @@ static struct snd_soc_card snd_soc_at91s .owner = THIS_MODULE, .dai_link = &at91sam9g20ek_dai, .num_links = 1, + .set_bias_level = at91sam9g20ek_set_bias_level, .dapm_widgets = at91sam9g20ek_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(at91sam9g20ek_dapm_widgets), @@ -129,6 +159,7 @@ static int at91sam9g20ek_audio_probe(str { struct device_node *np = pdev->dev.of_node; struct device_node *codec_np, *cpu_np; + struct clk *pllb; struct snd_soc_card *card = &snd_soc_at91sam9g20ek; int ret; @@ -142,6 +173,31 @@ static int at91sam9g20ek_audio_probe(str return -EINVAL; } + /* + * Codec MCLK is supplied by PCK0 - set it up. + */ + mclk = clk_get(NULL, "pck0"); + if (IS_ERR(mclk)) { + dev_err(&pdev->dev, "Failed to get MCLK\n"); + ret = PTR_ERR(mclk); + goto err; + } + + pllb = clk_get(NULL, "pllb"); + if (IS_ERR(pllb)) { + dev_err(&pdev->dev, "Failed to get PLLB\n"); + ret = PTR_ERR(pllb); + goto err_mclk; + } + ret = clk_set_parent(mclk, pllb); + clk_put(pllb); + if (ret != 0) { + dev_err(&pdev->dev, "Failed to set MCLK parent\n"); + goto err_mclk; + } + + clk_set_rate(mclk, MCLK_RATE); + card->dev = &pdev->dev; /* Parse device node info */ @@ -185,6 +241,9 @@ static int at91sam9g20ek_audio_probe(str return ret; +err_mclk: + clk_put(mclk); + mclk = NULL; err: atmel_ssc_put_audio(0); return ret; @@ -194,6 +253,8 @@ static int at91sam9g20ek_audio_remove(st { struct snd_soc_card *card = platform_get_drvdata(pdev); + clk_disable(mclk); + mclk = NULL; snd_soc_unregister_card(card); atmel_ssc_put_audio(0);