From nobody Mon Apr 27 06:26:22 2026 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E34BFC43334 for ; Thu, 16 Jun 2022 06:26:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1359143AbiFPG0F (ORCPT ); Thu, 16 Jun 2022 02:26:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45218 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1359135AbiFPG0D (ORCPT ); Thu, 16 Jun 2022 02:26:03 -0400 Received: from wout3-smtp.messagingengine.com (wout3-smtp.messagingengine.com [64.147.123.19]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 38496546B5; Wed, 15 Jun 2022 23:26:02 -0700 (PDT) Received: from compute5.internal (compute5.nyi.internal [10.202.2.45]) by mailout.west.internal (Postfix) with ESMTP id 566EE3200A40; Thu, 16 Jun 2022 02:26:00 -0400 (EDT) Received: from mailfrontend2 ([10.202.2.163]) by compute5.internal (MEProxy); Thu, 16 Jun 2022 02:26:01 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sholland.org; h= cc:cc:content-transfer-encoding:date:date:from:from:in-reply-to :in-reply-to:message-id:mime-version:references:reply-to:sender :subject:subject:to:to; s=fm3; t=1655360759; x=1655447159; bh=bh uLv+Q2nSNM/p4QOnabQDlNKfFDhf2mr0itZ8fuvwo=; b=DWwCvKiU708Va+XgKd kuWv1eTwBzzhEfDyRjdQjdiLfMSZFnx0B3ygFTu/F1fg+mWnJ6a7q1qXQnEfQoUE ZXHWJbD1f08TPo081pbWRBHpp3vbv2Nn3eS6QCZvQrw3fF9B7X2DAq8HCSQti2Tk ibWRzG/r09PeeJhLPkgx63+p4xXaLw/iCmrcFfy5kO9BLHn5CKHoV45Oo4y2Q76L KEQKYASpD0OUmBK0YaXF3kxTvbizA8FrtdKrROx6ZMN74cmb4daGw29xvNpj0jHh zcJ3Iw3EfWYNxc3or/x/vdQkY5WljvZcYYW/PxhARKjLQA7JZh7DtL+MNS/O7Uma DDPg== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-transfer-encoding:date:date :feedback-id:feedback-id:from:from:in-reply-to:in-reply-to :message-id:mime-version:references:reply-to:sender:subject :subject:to:to:x-me-proxy:x-me-proxy:x-me-sender:x-me-sender :x-sasl-enc; s=fm2; t=1655360759; x=1655447159; bh=bhuLv+Q2nSNM/ p4QOnabQDlNKfFDhf2mr0itZ8fuvwo=; b=Urq+w+FNFf1g5+WwlBbkpOFt5H4hr Ja0Q8zfzpGgCt117vjo1wWPvASYdHs8KBM0xz+ZGg+/F+qXY40NXCxL739jq5+z2 yEgDv41ZaYnRI6Trrj/O1ROUl9M7rF1TTGA6evJPmjkxv+iRLTpvNRIXKStA8uzX nlYt/n7eZS34SSGCSCywwuS7jT7De+ZMtNkJsnqeyJPKPIoQZLJYFlcKUAzZxNs/ 0TuiaQyNfMM1XIXo9kkqNZQwbabxXuWjw5YpiGnGbriecN0NfK88eaROksReogV/ 6BKczhT/RyRadfpwuQ4eVw5c7pBRMvRaKXW02DXAZIggkhns+KykP+ECw== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvfedruddvvddguddthecutefuodetggdotefrod ftvfcurfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfgh necuuegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmd enucfjughrpefhvfevufffkffojghfggfgsedtkeertdertddtnecuhfhrohhmpefurghm uhgvlhcujfholhhlrghnugcuoehsrghmuhgvlhesshhhohhllhgrnhgurdhorhhgqeenuc ggtffrrghtthgvrhhnpedukeetueduhedtleetvefguddvvdejhfefudelgfduveeggeeh gfdufeeitdevteenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepmhgrihhlfh hrohhmpehsrghmuhgvlhesshhhohhllhgrnhgurdhorhhg X-ME-Proxy: Feedback-ID: i0ad843c9:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Thu, 16 Jun 2022 02:25:59 -0400 (EDT) From: Samuel Holland To: Chen-Yu Tsai , Jernej Skrabec , Liam Girdwood , Mark Brown Cc: Arnaud Ferraris , Samuel Holland , Jaroslav Kysela , Krzysztof Kozlowski , Maxime Ripard , Rob Herring , Takashi Iwai , alsa-devel@alsa-project.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-sunxi@lists.linux.dev Subject: [PATCH 1/3] ASoC: dt-bindings: sun50i-codec: Add binding for internal bias Date: Thu, 16 Jun 2022 01:25:52 -0500 Message-Id: <20220616062554.57266-2-samuel@sholland.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220616062554.57266-1-samuel@sholland.org> References: <20220616062554.57266-1-samuel@sholland.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Arnaud Ferraris In order to properly bias headset microphones, there should be a pull-up resistor between pins HBIAS and MIC2P. This can be an external resistor, but the codec also provides an internal 2.2K resistor which is enabled by a register. This patch adds a device-tree property to the sun50i-codec-analog driver to take advantage of this feature. Signed-off-by: Arnaud Ferraris [Samuel: split binding and implementation patches] Signed-off-by: Samuel Holland --- .../bindings/sound/allwinner,sun50i-a64-codec-analog.yaml | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/Documentation/devicetree/bindings/sound/allwinner,sun50i-a64-c= odec-analog.yaml b/Documentation/devicetree/bindings/sound/allwinner,sun50i= -a64-codec-analog.yaml index 3b764415c9ab..66859eb8f79a 100644 --- a/Documentation/devicetree/bindings/sound/allwinner,sun50i-a64-codec-an= alog.yaml +++ b/Documentation/devicetree/bindings/sound/allwinner,sun50i-a64-codec-an= alog.yaml @@ -21,6 +21,11 @@ properties: description: Regulator for the headphone amplifier =20 + allwinner,internal-bias-resistor: + description: + Enable the internal 2.2K bias resistor between HBIAS and MICDET pins + type: boolean + required: - compatible - reg --=20 2.35.1 From nobody Mon Apr 27 06:26:22 2026 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 57582CCA47A for ; 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Thu, 16 Jun 2022 02:26:02 -0400 (EDT) From: Samuel Holland To: Chen-Yu Tsai , Jernej Skrabec , Liam Girdwood , Mark Brown Cc: Arnaud Ferraris , Samuel Holland , Jaroslav Kysela , Krzysztof Kozlowski , Maxime Ripard , Rob Herring , Takashi Iwai , alsa-devel@alsa-project.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-sunxi@lists.linux.dev Subject: [PATCH 2/3] ASoC: sun50i-codec-analog: Add support for internal bias Date: Thu, 16 Jun 2022 01:25:53 -0500 Message-Id: <20220616062554.57266-3-samuel@sholland.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220616062554.57266-1-samuel@sholland.org> References: <20220616062554.57266-1-samuel@sholland.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Arnaud Ferraris In order to properly bias headset microphones, there should be a pull-up resistor between pins HBIAS and MIC2P. This can be an external resistor, but the codec also provides an internal 2.2K resistor which is enabled by a register. This patch enables or disables the internal bias resistor based on a device tree property. Signed-off-by: Arnaud Ferraris [Samuel: split binding and implementation patches] Signed-off-by: Samuel Holland --- sound/soc/sunxi/sun50i-codec-analog.c | 29 +++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) diff --git a/sound/soc/sunxi/sun50i-codec-analog.c b/sound/soc/sunxi/sun50i= -codec-analog.c index a41e25ad0aaf..699a5a318875 100644 --- a/sound/soc/sunxi/sun50i-codec-analog.c +++ b/sound/soc/sunxi/sun50i-codec-analog.c @@ -117,8 +117,13 @@ #define SUN50I_ADDA_HS_MBIAS_CTRL_MMICBIASEN 7 =20 #define SUN50I_ADDA_JACK_MIC_CTRL 0x1d +#define SUN50I_ADDA_JACK_MIC_CTRL_INNERRESEN 6 #define SUN50I_ADDA_JACK_MIC_CTRL_HMICBIASEN 5 =20 +struct sun50i_codec_analog { + bool internal_bias_resistor; +}; + /* mixer controls */ static const struct snd_kcontrol_new sun50i_a64_codec_mixer_controls[] =3D= { SOC_DAPM_DOUBLE_R("Mic1 Playback Switch", @@ -471,6 +476,18 @@ static const struct snd_soc_dapm_route sun50i_a64_code= c_routes[] =3D { { "EARPIECE", NULL, "Earpiece Amp" }, }; =20 +static int sun50i_a64_codec_probe(struct snd_soc_component *component) +{ + struct sun50i_codec_analog *codec =3D snd_soc_component_get_drvdata(compo= nent); + + regmap_update_bits(component->regmap, SUN50I_ADDA_JACK_MIC_CTRL, + BIT(SUN50I_ADDA_JACK_MIC_CTRL_INNERRESEN), + codec->internal_bias_resistor << + SUN50I_ADDA_JACK_MIC_CTRL_INNERRESEN); + + return 0; +} + static int sun50i_a64_codec_suspend(struct snd_soc_component *component) { return regmap_update_bits(component->regmap, SUN50I_ADDA_HP_CTRL, @@ -491,6 +508,7 @@ static const struct snd_soc_component_driver sun50i_cod= ec_analog_cmpnt_drv =3D { .num_dapm_widgets =3D ARRAY_SIZE(sun50i_a64_codec_widgets), .dapm_routes =3D sun50i_a64_codec_routes, .num_dapm_routes =3D ARRAY_SIZE(sun50i_a64_codec_routes), + .probe =3D sun50i_a64_codec_probe, .suspend =3D sun50i_a64_codec_suspend, .resume =3D sun50i_a64_codec_resume, }; @@ -505,9 +523,20 @@ MODULE_DEVICE_TABLE(of, sun50i_codec_analog_of_match); =20 static int sun50i_codec_analog_probe(struct platform_device *pdev) { + struct sun50i_codec_analog *codec; struct regmap *regmap; void __iomem *base; =20 + codec =3D devm_kzalloc(&pdev->dev, sizeof(*codec), GFP_KERNEL); + if (!codec) + return -ENOMEM; + + platform_set_drvdata(pdev, codec); + + codec->internal_bias_resistor =3D + device_property_read_bool(&pdev->dev, + "allwinner,internal-bias-resistor"); + base =3D devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(base)) { dev_err(&pdev->dev, "Failed to map the registers\n"); --=20 2.35.1 From nobody Mon Apr 27 06:26:22 2026 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 11987C433EF for ; Thu, 16 Jun 2022 06:26:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1359162AbiFPG0Q (ORCPT ); Thu, 16 Jun 2022 02:26:16 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45378 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1359157AbiFPG0M (ORCPT ); Thu, 16 Jun 2022 02:26:12 -0400 Received: from wout3-smtp.messagingengine.com (wout3-smtp.messagingengine.com [64.147.123.19]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CD62253B53; 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Thu, 16 Jun 2022 02:26:05 -0400 (EDT) From: Samuel Holland To: Chen-Yu Tsai , Jernej Skrabec , Liam Girdwood , Mark Brown Cc: Arnaud Ferraris , Samuel Holland , Jaroslav Kysela , Krzysztof Kozlowski , Maxime Ripard , Rob Herring , Takashi Iwai , alsa-devel@alsa-project.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-sunxi@lists.linux.dev Subject: [PATCH 3/3] arm64: dts: allwinner: pinephone: Enable internal HMIC bias Date: Thu, 16 Jun 2022 01:25:54 -0500 Message-Id: <20220616062554.57266-4-samuel@sholland.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220616062554.57266-1-samuel@sholland.org> References: <20220616062554.57266-1-samuel@sholland.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Revisions 1.0 and 1.1 of the PinePhone mainboard do not have an external resistor connecting HBIAS to MIC2P. Enable the internal resistor to provide the necessary headeset microphone bias. Signed-off-by: Samuel Holland --- arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.0.dts | 4 ++++ arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.1.dts | 4 ++++ 2 files changed, 8 insertions(+) diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.0.dts b/a= rch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.0.dts index fb65319a3bd3..219f720b8b7d 100644 --- a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.0.dts +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.0.dts @@ -10,6 +10,10 @@ / { compatible =3D "pine64,pinephone-1.0", "pine64,pinephone", "allwinner,sun= 50i-a64"; }; =20 +&codec_analog { + allwinner,internal-bias-resistor; +}; + &sgm3140 { enable-gpios =3D <&pio 2 3 GPIO_ACTIVE_HIGH>; /* PC3 */ flash-gpios =3D <&pio 3 24 GPIO_ACTIVE_HIGH>; /* PD24 */ diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.1.dts b/a= rch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.1.dts index 5e59d3752178..723af64a9cee 100644 --- a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.1.dts +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.1.dts @@ -29,6 +29,10 @@ &backlight { default-brightness-level =3D <400>; }; =20 +&codec_analog { + allwinner,internal-bias-resistor; +}; + &sgm3140 { enable-gpios =3D <&pio 3 24 GPIO_ACTIVE_HIGH>; /* PD24 */ flash-gpios =3D <&pio 2 3 GPIO_ACTIVE_HIGH>; /* PC3 */ --=20 2.35.1