From patchwork Thu Aug 10 22:49:28 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: John Watts X-Patchwork-Id: 13350247 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 alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (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 36A8EEB64DD for ; Fri, 11 Aug 2023 07:41:02 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id E9709839; Fri, 11 Aug 2023 09:40:10 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz E9709839 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1691739661; bh=4zCNg7WlXafTdFg+xZN6IDYf+gNB0ue1fiNNNkZJQYc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-Id: List-Archive:List-Help:List-Owner:List-Post:List-Subscribe: List-Unsubscribe:From; b=rmcalDl2GpuGoabB9Xl47vZdublED9XHnZuVFISj3x4+IBd1IH4j6gCsBm9Jjp/xN QOoroc4Z5DH+FNKxnogOC6pEL7XZKa3GoVhokr0JnkDuIqHWz7iPgasdTVrpOzx1pm LWfN74g6OVTpQRDDKpJobjTEtj7ULvy8um8Y40Sw= Received: by alsa1.perex.cz (Postfix, from userid 50401) id 99AE4F80558; Fri, 11 Aug 2023 09:39:21 +0200 (CEST) Received: from mailman-core.alsa-project.org (mailman-core.alsa-project.org [10.254.200.10]) by alsa1.perex.cz (Postfix) with ESMTP id DCB5DF80564; Fri, 11 Aug 2023 09:39:20 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 0BF59F800EE; Fri, 11 Aug 2023 00:49:54 +0200 (CEST) Received: from out-124.mta1.migadu.com (out-124.mta1.migadu.com [IPv6:2001:41d0:203:375::7c]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id E1476F80166 for ; Fri, 11 Aug 2023 00:49:45 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz E1476F80166 Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key, unprotected) header.d=jookia.org header.i=@jookia.org header.a=rsa-sha256 header.s=key1 header.b=01K1Clo5 X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. 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Instead of hardcoding which rates are supported enable them all then refer to a max_rate variable at runtime. Signed-off-by: John Watts --- sound/soc/codecs/wm8782.c | 45 ++++++++++++++++++++++++++++----------- 1 file changed, 33 insertions(+), 12 deletions(-) diff --git a/sound/soc/codecs/wm8782.c b/sound/soc/codecs/wm8782.c index 95ff4339d103..63ab63f3189a 100644 --- a/sound/soc/codecs/wm8782.c +++ b/sound/soc/codecs/wm8782.c @@ -23,6 +23,30 @@ #include #include +/* regulator power supply names */ +static const char *supply_names[] = { + "Vdda", /* analog supply, 2.7V - 3.6V */ + "Vdd", /* digital supply, 2.7V - 5.5V */ +}; + +struct wm8782_priv { + struct regulator_bulk_data supplies[ARRAY_SIZE(supply_names)]; + int max_rate; +}; + +static int wm8782_dai_hw_params(struct snd_pcm_substream *component, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct wm8782_priv *priv = + snd_soc_component_get_drvdata(dai->component); + + if (params_rate(params) > priv->max_rate) + return -EINVAL; + + return 0; +} + static const struct snd_soc_dapm_widget wm8782_dapm_widgets[] = { SND_SOC_DAPM_INPUT("AINL"), SND_SOC_DAPM_INPUT("AINR"), @@ -33,28 +57,22 @@ static const struct snd_soc_dapm_route wm8782_dapm_routes[] = { { "Capture", NULL, "AINR" }, }; +static const struct snd_soc_dai_ops wm8782_dai_ops = { + .hw_params = &wm8782_dai_hw_params, +}; + static struct snd_soc_dai_driver wm8782_dai = { .name = "wm8782", .capture = { .stream_name = "Capture", .channels_min = 2, .channels_max = 2, - /* For configurations with FSAMPEN=0 */ - .rates = SNDRV_PCM_RATE_8000_48000, + .rates = SNDRV_PCM_RATE_8000_192000, .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE, }, -}; - -/* regulator power supply names */ -static const char *supply_names[] = { - "Vdda", /* analog supply, 2.7V - 3.6V */ - "Vdd", /* digital supply, 2.7V - 5.5V */ -}; - -struct wm8782_priv { - struct regulator_bulk_data supplies[ARRAY_SIZE(supply_names)]; + .ops = &wm8782_dai_ops, }; static int wm8782_soc_probe(struct snd_soc_component *component) @@ -121,6 +139,9 @@ static int wm8782_probe(struct platform_device *pdev) if (ret < 0) return ret; + /* For configurations with FSAMPEN=0 */ + priv->max_rate = 48000; + return devm_snd_soc_register_component(&pdev->dev, &soc_component_dev_wm8782, &wm8782_dai, 1); } From patchwork Thu Aug 10 22:49:29 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: John Watts X-Patchwork-Id: 13350248 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 alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (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 43472EB64DD for ; Fri, 11 Aug 2023 07:41:07 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 5C30384A; Fri, 11 Aug 2023 09:40:15 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 5C30384A DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1691739665; bh=3jAdc6zqgHguZYmqLbCBKnJUNfatNFVyOrDYZanp+ao=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-Id: List-Archive:List-Help:List-Owner:List-Post:List-Subscribe: List-Unsubscribe:From; b=eOwMulrv9Yf857nWOMfkEeaJEmbLxfnV6ek0NykuWj+AgULBdY+Nk69Ukl5b+lKzP 4vJO5JoFyiyNle9ROPKTT/YQaqrrHx0LZetcKtBvwTnDJIEG6wkcHbKGVmIwm6Vi8d Djm+GhYUPHGs+njXxoLUDai/HVtbLG9yIkquzh68= Received: by alsa1.perex.cz (Postfix, from userid 50401) id 908A1F8057C; Fri, 11 Aug 2023 09:39:23 +0200 (CEST) Received: from mailman-core.alsa-project.org (mailman-core.alsa-project.org [10.254.200.10]) by alsa1.perex.cz (Postfix) with ESMTP id 42FB1F80571; Fri, 11 Aug 2023 09:39:23 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 120EDF8016E; Fri, 11 Aug 2023 00:49:56 +0200 (CEST) Received: from out-87.mta0.migadu.com (out-87.mta0.migadu.com [IPv6:2001:41d0:1004:224b::57]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id BCC99F80134 for ; Fri, 11 Aug 2023 00:49:52 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz BCC99F80134 Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key, unprotected) header.d=jookia.org header.i=@jookia.org header.a=rsa-sha256 header.s=key1 header.b=m0z6cPN5 X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. 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Allow this to be specified in the device tree. Signed-off-by: John Watts --- sound/soc/codecs/wm8782.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/sound/soc/codecs/wm8782.c b/sound/soc/codecs/wm8782.c index 63ab63f3189a..6a2f29ee897c 100644 --- a/sound/soc/codecs/wm8782.c +++ b/sound/soc/codecs/wm8782.c @@ -122,6 +122,7 @@ static const struct snd_soc_component_driver soc_component_dev_wm8782 = { static int wm8782_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; + struct device_node *np = dev->of_node; struct wm8782_priv *priv; int ret, i; @@ -139,9 +140,12 @@ static int wm8782_probe(struct platform_device *pdev) if (ret < 0) return ret; - /* For configurations with FSAMPEN=0 */ + /* Assume lowest value by default to avoid inadvertent overclocking */ priv->max_rate = 48000; + if (np) + of_property_read_u32(np, "max-rate", &priv->max_rate); + return devm_snd_soc_register_component(&pdev->dev, &soc_component_dev_wm8782, &wm8782_dai, 1); } From patchwork Thu Aug 10 22:49:30 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: John Watts X-Patchwork-Id: 13350249 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 alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (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 BEDE0C001B0 for ; Fri, 11 Aug 2023 07:41:23 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id BFE8C857; Fri, 11 Aug 2023 09:40:31 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz BFE8C857 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1691739681; bh=l1ZlnRn8z//foXTOvzBOYTGNCY67v+UDIv8VT9EnzPs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-Id: List-Archive:List-Help:List-Owner:List-Post:List-Subscribe: List-Unsubscribe:From; b=lSdHc2tUJUdgZn5mEHQjWr73+hPdM7vjjaxOOlUMZrmYNIDjCk65wwPYw+T7eiB2b 8TdYcG5UpA60gcLOM5BUMCQK0dtC1lIVoVPXw/VkGnM56d4vpqUmBZNB2iJLm1QuGn BpVWgJOJxro+pe8SJlQ4XEmqVl2SB3IWeol+ekjk= Received: by alsa1.perex.cz (Postfix, from userid 50401) id BE176F80580; Fri, 11 Aug 2023 09:39:25 +0200 (CEST) Received: from mailman-core.alsa-project.org (mailman-core.alsa-project.org [10.254.200.10]) by alsa1.perex.cz (Postfix) with ESMTP id 21FD0F8057E; Fri, 11 Aug 2023 09:39:25 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id DE23FF8016E; Fri, 11 Aug 2023 00:50:02 +0200 (CEST) Received: from out-127.mta0.migadu.com (out-127.mta0.migadu.com [IPv6:2001:41d0:1004:224b::7f]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id E3A7BF80166 for ; Fri, 11 Aug 2023 00:49:57 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz E3A7BF80166 Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key, unprotected) header.d=jookia.org header.i=@jookia.org header.a=rsa-sha256 header.s=key1 header.b=G9D1ygqU X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=jookia.org; s=key1; t=1691707796; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=dL6Ngh+RAsXyB4bL14IUKXOWyHxi2/XnqLmZv3QLPZQ=; b=G9D1ygqU6bbwFGM7Kci4Z/8jwSyUr8F/yB30/CiYLshmPVQBjrE6hbeiDs0EpOveaKmXdN abyrTmC6w5uXLqUAqv6nXO4vdpnyGm2vkIaCUcqKdpOpHEeae7AKXB75xTLPF5mhRp+iOL Rdu1P3R3GnLiOWu8MdOte7DD9Tx8D1TPZfAAk/6146hGldYLfclp14L7G71CyDQHSq4HKG h6rEBXWFAaN3rtgXktGERljrZLgCjd9TFQVl6YaznzZ+OkMlYT/G/5jITG2vSQHB5Iu2lR 8AT2tG8Tgrrq0PLx5Rg1848NOX3W7AySaIWc2EJZ1UaQs2YOeiv3xqhC8DqxSg== From: John Watts To: alsa-devel@alsa-project.org Cc: Liam Girdwood , Mark Brown , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Jaroslav Kysela , Takashi Iwai , John Watts , patches@opensource.cirrus.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 3/3] ASoC: dt-bindings: wlf,wm8782: Add max-rate property Date: Fri, 11 Aug 2023 08:49:30 +1000 Message-ID: <20230810224930.3216717-4-contact@jookia.org> In-Reply-To: <20230810224930.3216717-1-contact@jookia.org> References: <20230810224930.3216717-1-contact@jookia.org> MIME-Version: 1.0 X-Migadu-Flow: FLOW_OUT X-MailFrom: contact@jookia.org X-Mailman-Rule-Hits: nonmember-moderation X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-alsa-devel.alsa-project.org-0; header-match-alsa-devel.alsa-project.org-1 Message-ID-Hash: 5XHIDE5L7QDQXS27KJYYSDAUZNFND4J3 X-Message-ID-Hash: 5XHIDE5L7QDQXS27KJYYSDAUZNFND4J3 X-Mailman-Approved-At: Fri, 11 Aug 2023 07:39:15 +0000 X-Mailman-Version: 3.3.8 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: The WM8782 can safely support rates higher than 48kHz by changing the value of the FSAMPEN pin. Allow specifying the maximum support rate the hardware configuration supports in the device tree. Signed-off-by: John Watts --- Documentation/devicetree/bindings/sound/wm8782.txt | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/devicetree/bindings/sound/wm8782.txt b/Documentation/devicetree/bindings/sound/wm8782.txt index 256cdec6ec4d..a68061a3e671 100644 --- a/Documentation/devicetree/bindings/sound/wm8782.txt +++ b/Documentation/devicetree/bindings/sound/wm8782.txt @@ -7,6 +7,7 @@ Required properties: - compatible : "wlf,wm8782" - Vdda-supply : phandle to a regulator for the analog power supply (2.7V - 5.5V) - Vdd-supply : phandle to a regulator for the digital power supply (2.7V - 3.6V) + - max-rate : max supported audio rate configured by FSAMPEN pin, defaults to 48000 Example: @@ -14,4 +15,5 @@ wm8782: stereo-adc { compatible = "wlf,wm8782"; Vdda-supply = <&vdda_supply>; Vdd-supply = <&vdd_supply>; + max-rate = <96000>; /* FSAMPEN is 1 */ };