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 18DC34C77D9; Tue, 12 May 2026 12:06:31 +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=1778587592; cv=none; b=aVosN/eiOdJP26jpNXiczpdhYUH9GENhAgRAXFAP7QSjboaQgJh7B4mMpNZEj+qYWMfN6Prkkr/VycjLf0eSRvxoWmwS3LikOWdLlSJmxvC7z3k8MPwEQDmScpU+ly/WWmnOJLriN44xwES2iNl8TR+amX5X/02P2RUh17vxxoo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778587592; c=relaxed/simple; bh=drLM0BAX3WIAuXVnD/2fUpgJp4pFKEOucdQPoRM/WBw=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=M2eZ35OGLL/8fTX7vMSwFjkgO5P3ZeemYLzeDAtxk9k4gSu88Xi+NGnnAqxfa0kqPTotCZRoZ/azNbn5JRHNYG8vhoDRvl7XVbmWfv9WvskbNxlqGBbVnoIw4/hJW8swlOiPZrxB2tnBlsqa3mMXsPkQKwIBYIpqzbcowmfzm9o= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=DM8NY+B8; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="DM8NY+B8" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 58CB0C2BCB0; Tue, 12 May 2026 12:06:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1778587591; bh=drLM0BAX3WIAuXVnD/2fUpgJp4pFKEOucdQPoRM/WBw=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=DM8NY+B8PoMUgExJSzDboO3N5/14EPr+5mRZW3VKxQlUmqBx8+hywKdk6GmYBAB5f 8nulResCLYBto6VQs3hRYA4KETuKTELxNR8KTD0A8SHHaZq0+MZW5cuqzMxVvjF3Ar mm0WBZkP37qou44s62yfo1pjSUpXR7yARv+ZtF84vj7sPRtDvtjuKaq8UdZly7jo8N kydX+PiGds244j0Y6LXSItvI6x6ENINOrypn3TCV22aKWNiqshhxd7dIJ6fK3WSYgJ XqzugwqQSrg3k3Id1oXkJJlsfvp//uxyD5TkhF5mIYAxN7wX19pyFjWbMaVPRgWeun 17bX/s/lKW9Jg== Date: Tue, 12 May 2026 13:06:22 +0100 From: Jonathan Cameron To: Piyush Patle Cc: ak@it-klinger.de, andriy.shevchenko@linux.intel.com, dlechner@baylibre.com, nuno.sa@analog.com, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v8 v8 02/11] dt-bindings: iio: adc: hx711: add VSUP supply property Message-ID: <20260512130622.1f3f4d08@jic23-huawei> In-Reply-To: <20260511174342.123820-3-piyushpatle228@gmail.com> References: <20260511174342.123820-1-piyushpatle228@gmail.com> <20260511174342.123820-3-piyushpatle228@gmail.com> X-Mailer: Claws Mail 4.4.0 (GTK 3.24.52; x86_64-pc-linux-gnu) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Mon, 11 May 2026 23:13:27 +0530 Piyush Patle wrote: > Document the optional VSUP supply used by the HX711 on-chip regulator. > > Signed-off-by: Piyush Patle > Reviewed-by: Andy Shevchenko > Acked-by: Conor Dooley > --- I got curious given the driver doesn't yet turn this on and wanted to just sanity check it via a datasheet. Why are we including this one but not dvdd-supply? The suggested wiring does connect them to the same supply but it's external to the chip so in theory they might not be. Curiously dvdd supply is allowed to be 0.1 V lower than vsup-supply. > Documentation/devicetree/bindings/iio/adc/avia-hx711.yaml | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/Documentation/devicetree/bindings/iio/adc/avia-hx711.yaml b/Documentation/devicetree/bindings/iio/adc/avia-hx711.yaml > index 1ea60dff98d5..a8eaa1f18de5 100644 > --- a/Documentation/devicetree/bindings/iio/adc/avia-hx711.yaml > +++ b/Documentation/devicetree/bindings/iio/adc/avia-hx711.yaml > @@ -33,6 +33,10 @@ properties: > description: > Analog supply voltage (AVDD). > > + vsup-supply: > + description: > + Supply voltage for the on-chip regulator (VSUP). > + > clock-frequency: > description: > Controls the SCK bit-bang timing. The value is used to derive the