From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from ixit.cz (ixit.cz [84.42.129.46]) (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 98A4642A14D; Mon, 3 Aug 2026 19:35:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=84.42.129.46 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785785726; cv=none; b=K64Bq3Diz2WdbGRsnl6eiPqtRjRuE7P+GKfNmBMYbWXM7Hs6KQccohvZmV217l5ahG80Wgsc0lpwqDsiWUvnNT7ipo5G2r6XCn1Hcmsp+ny+iEvj243xykX32EJZOfFp+36R0JPGQsreexx2Yfk5kQqsOVntT1kzIhU5iVcgWlI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785785726; c=relaxed/simple; bh=0u2a1lSVQ4ZR1c9tPuyVboKw1enQLnWGm/vncMiKhk8=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=PFt7ryKw1DPvD1PBKH/cuhUOAT/zX6EW8DeYFoLaO5Bmq+gkKt0oH161tAQvLawBTimEO0DaINmf9ItyHbis0B/U1MXNVkqxOgGwHAcGERmdJeN1+u9vIxtC5DvcDCMa/CNAdO5/5vYLWc8DMcjhYFfmd35G5D+q/iIqASQlCqU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=ixit.cz; spf=pass smtp.mailfrom=ixit.cz; dkim=pass (1024-bit key) header.d=ixit.cz header.i=@ixit.cz header.b=CCKoQ1CV; arc=none smtp.client-ip=84.42.129.46 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=ixit.cz Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ixit.cz Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=ixit.cz header.i=@ixit.cz header.b="CCKoQ1CV" Received: from [10.0.0.182] (unknown [10.0.0.1]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange x25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by ixit.cz (Postfix) with ESMTPSA id AA37E5340321; Mon, 03 Aug 2026 21:35:19 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ixit.cz; s=dkim; t=1785785719; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:autocrypt:autocrypt; bh=qNkEgZtE9MyrRrLinjI/1vsPROGFxoSujraxlInN0iw=; b=CCKoQ1CVpmqp8XoxyeAiSn1Wke25wcx+oIwCGSfaJkvDrezNwe9fgfOWhY+y71UhUhRLO1 /0HfWAFcTOX46qQ75eNsOvZ5YmwCY8Y3PquVUqU/ltOdR0QYunrLxXDFgX2P9EQ6eC4a18 mEZ8erCjUnmSdpDymfaUC0GKg00N/j4= Message-ID: <58da7454-e539-4e2b-b658-829cece52205@ixit.cz> Date: Mon, 3 Aug 2026 21:35:19 +0200 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 4/4] arm64: dts: imx8mq-librem5: Dongwoon DW9714 coil requires higher voltage To: Sebastian Krzyszkowiak , Sakari Ailus , Mauro Carvalho Chehab , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Heiko Stuebner , Ondrej Jirman , Olivier Benjamin , Manuel Traut , Alexander Warnecke , Frank Li , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , Martin Kepplinger , Shawn Guo Cc: Krzysztof Kozlowski , linux-media@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, phone-devel@vger.kernel.org, imx@lists.linux.dev, stable@vger.kernel.org References: <20260801-pp-pro-camera-v1-0-7b4d90788f9f@ixit.cz> <20260801-pp-pro-camera-v1-4-7b4d90788f9f@ixit.cz> Content-Language: en-US From: David Heidelberg Autocrypt: addr=david@ixit.cz; keydata= xsFNBF5v1x4BEADS3EddwsNsvVAI1XF8uQKbdYPY/GhjaSLziwVnbwv5BGwqB1tfXoHnccoA 9kTgKAbiXG/CiZFhD6l4WCIskQDKzyQN3JhCUIxh16Xyw0lECI7iqoW9LmMoN1dNKcUmCO9g lZxQaOl+1bY/7ttd7DapLh9rmBXJ2lKiMEaIpUwb/Nw0d7Enp4Jy2TpkhPywIpUn8CoJCv3/ 61qbvI9y5utB/UhfMAUXsaAgwEJyGPAqHlC0YZjaTwOu+YQUE3AFzhCbksq95CwDz4U4gdls dmv9tkATfu2OmzERZQ6vJTehK0Pu4l5KmCAzYg42I9Dy4E6b17x6NncKbcByQFOXMtG0qVUk F1yeeOQUHwu+8t3ZDMBUhCkRL/juuoqLmyDWKMc0hKNNeZ9BNXgB8fXkRLWEUfgDXsFyEkKp NxUy5bDRlivf6XfExnikk5kj9l2gGlNQwqROti/46bfbmlmc/a2GM4k8ZyalHNEAdwtXYSpP 8JJmlbQ7hNTLkc3HQLRsIocN5th/ur7pPMz1Beyp0gbE9GcOceqmdZQB80vJ01XDyCAihf6l AMnzwpXZsjqIqH9r7T7tM6tVEVbPSwPt4eZYXSoJijEBC/43TBbmxDX+5+3txRaSCRQrG9dY k3mMGM3xJLCps2KnaqMcgUnvb1KdTgEFUZQaItw7HyRd6RppewARAQABzSBEYXZpZCBIZWlk ZWxiZXJnIDxkYXZpZEBpeGl0LmN6PsLBlAQTAQgAPgIbAwULCQgHAgYVCgkICwIEFgIDAQIe AQIXgBYhBNd6Cc/u3Cu9U6cEdGACP8TTSSByBQJl+KksBQkPDaAOAAoJEGACP8TTSSBy6IAQ AMqFqVi9LLxCEcUWBn82ssQGiVSDniKpFE/tp7lMXflwhjD5xoftoWOmMYkiWE86t5x5Fsp7 afALx7SEDz599F1K1bLnaga+budu55JEAYGudD2WwpLJ0kPzRhqBwGFIx8k6F+goZJzxPDsf loAtXQE62UvEKa4KRRcZmF0GGoRsgA7vE7OnV8LMeocdD3eb2CuXLzauHAfdvqF50IfPH/sE jbzROiAZU+WgrwU946aOzrN8jVU+Cy8XAccGAZxsmPBfhTY5f2VN1IqvfaRdkKKlmWVJWGw+ ycFpAEJKFRdfcc5PSjUJcALn5C+hxzL2hBpIZJdfdfStn+DWHXNgBeRDiZj1x6vvyaC43RAb VXvRzOQfG4EaMVMIOvBjBA/FtIpb1gtXA42ewhvPnd5RVCqD9YYUxsVpJ9d+XsAy7uib3BsV W2idAEsPtoqhVhq8bCUs/G4sC2DdyGZK8MRFDJqciJSUbqA+5z1ZCuE8UOPDpZKiW6H/OuOM zDcjh0lOzr4p+/1TSg1PbUh7fQ+nbMuiT044sC1lLtJK0+Zyn0GwhR82oNM4fldNsaHRW42w QGD35+eNo5Pvb3We5XRMlBdhFnj7Siggp4J8/PJ6MJvRyC+RIJPGtbdMB2/RxWunFLn87e5w UgwR9jPMHAstuTR1yR23c4SIYoQ2fzkrRzuazsFNBF5v1x4BEADnlrbta2WL87BlEOotZUh0 zXANMrNV15WxexsirLetfqbs0AGCaTRNj+uWlTUDJRXOVIwzmF76Us3I2796+Od2ocNpLheZ 7EIkq8budtLVd1c06qJ+GMraz51zfgSIazVInNMPk9T6fz0lembji5yEcNPNNBA4sHiFmXfo IhepHFOBApjS0CiOPqowYxSTPe/DLcJ/LDwWpTi37doKPhBwlHev1BwVCbrLEIFjY0MLM0aT jiBBlyLJaTqvE48gblonu2SGaNmGtkC3VoQUQFcVYDXtlL9CVbNo7BAt5gwPcNqEqkUL60Jh FtvVSKyQh6gn7HHsyMtgltjZ3NKjv8S3yQd7zxvCn79tCKwoeNevsvoMq/bzlKxc9QiKaRPO aDj3FtW7R/3XoKJBY8Hckyug6uc2qYWRpnuXc0as6S0wfek6gauExUttBKrtSbPPHiuTeNHt NsT4+dyvaJtQKPBTbPHkXpTO8e1+YAg7kPj3aKFToE/dakIh8iqUHLNxywDAamRVn8Ha67WO AEAA3iklJ49QQk2ZyS1RJ2Ul28ePFDZ3QSr9LoJiOBZv9XkbhXS164iRB7rBZk6ZRVgCz3V6 hhhjkipYvpJ/fpjXNsVL8jvel1mYNf0a46T4QQDQx4KQj0zXJbC2fFikAtu1AULktF4iEXEI rSjFoqhd4euZ+QARAQABwsF8BBgBCAAmAhsMFiEE13oJz+7cK71TpwR0YAI/xNNJIHIFAmX4 qVAFCQ8NoDIACgkQYAI/xNNJIHKN4A/+Ine2Ii7JiuGITjJkcV6pgKlfwYdEs4eFD1pTRb/K 5dprUz3QSLP41u9OJQ23HnESMvn31UENk9ffebNoW7WxZ/8cTQY0JY/cgTTrlNXtyAlGbR3/ 3Q/VBJptf04Er7I6TaKAmqWzdVeKTw33LljpkHp02vrbOdylb4JQG/SginLV9purGAFptYRO 8JNa2J4FAQtQTrfOUjulOWMxy7XRkqK3QqLcPW79/CFn7q1yxamPkpoXUJq9/fVjlhk7P+da NYQpe4WQQnktBY29SkFnvfIAwqIVU8ix5Oz8rghuCcAdR7lEJ7hCX9bR0EE05FOXdZy5FWL9 GHvFa/Opkq3DPmFl/0nt4HJqq1Nwrr+WR6d0414oo1n2hPEllge/6iD3ZYwptTvOFKEw/v0A yqOoYSiKX9F7Ko7QO+VnYeVDsDDevKic2T/4GDpcSVd9ipiKxCQvUAzKUH7RUpqDTa+rYurm zRKcgRumz2Tc1ouHj6qINlzEe3a5ldctIn/dvR1l2Ko7GBTG+VGp9U5NOAEkGpxHG9yg6eeY fFYnMme51H/HKiyUlFiE3yd5LSmv8Dhbf+vsI4x6BOOOq4Iyop/Exavj1owGxW0hpdUGcCl1 ovlwVPO/6l/XLAmSGwdnGqok5eGZQzSst0tj9RC9O0dXO1TZocOsf0tJ8dR2egX4kxM= In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit On 03/08/2026 20:12, Sebastian Krzyszkowiak wrote: > On sobota, 1 sierpnia 2026 02:35:23 czas środkowoeuropejski letni David > Heidelberg via B4 Relay wrote: >> From: David Heidelberg >> >> By datasheet the VDD (in-kernel named vcc) range is between 2.3 to 4.3 V. >> Usually it's around 2.8 V. Here it matches the reg_vcam_2v8. > > It doesn't - VCAM_2V8 isn't connected to DW9714 (and neither is CSI_1V8); > VCAM_AFVDD is. I didn't realized we have datasheet here :) > >> 1.8 V here is likely used for i2c level shifter. > > I'm not sure where you've got an I2C level shifter from, there's none involved it's copy-paste from previous commits. > there. CSI_1V8 is passed to the rear camera module as DOVDD and is consumed by > S5K3L6 as VDDIO, and both S5K3L6 and DW9714 are connected to I2C4_SDA/ > I2C4_SCL, operating at the 1.8V level, only though an EMI filter (F7 in the > schematic). I don't see the AFVDD in the [1], do you have it somewhere defined? Thanks David [1] https://source.puri.sm/Librem5/linux/-/tree/pureos/latest/arch/arm64/boot/dts/freescale?ref_type=heads > >> >> Fixes: f00df2bdb512 ("arm64: dts: imx8mq-librem5: describe the voice coil >> motor for focus control") Cc: stable@vger.kernel.org >> Signed-off-by: David Heidelberg >> --- >> arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi | 2 +- >> 1 file changed, 1 insertion(+), 1 deletion(-) >> >> diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi >> b/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi index >> f5d529c5baf3e..583cba2d3bebf 100644 >> --- a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi >> +++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi >> @@ -1167,17 +1167,17 @@ &i2c4 { >> pinctrl-1 = <&pinctrl_i2c4_gpio>; >> scl-gpios = <&gpio5 20 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>; >> sda-gpios = <&gpio5 21 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>; >> status = "okay"; >> >> vcm@c { >> compatible = "dongwoon,dw9714"; >> reg = <0x0c>; >> - vcc-supply = <®_csi_1v8>; >> + vcc-supply = <®_vcam_2v8>; >> }; >> >> bat: fuel-gauge@36 { >> compatible = "maxim,max17055"; >> reg = <0x36>; >> interrupt-parent = <&gpio3>; >> interrupts = <20 IRQ_TYPE_LEVEL_LOW>; >> pinctrl-names = "default"; > > > > -- David Heidelberg