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 562B53A962E; Sun, 28 Jun 2026 14:09:54 +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=1782655794; cv=none; b=A2Bwp/fRvZDEqYuFaMOlbQdYuu0A25UHXQZpllPK3Oodnx/rxsdWOxBXNW7/UzLf80WVIdpzdSv6gPnob624XIAnxsLAzer9t74YKV4V/0vugd2GSObU8yyMNQxDSHatggCaW3lPVGsj6vpXq7VtN1JAJKZQk/tQ0GPHjtMZ72g= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782655794; c=relaxed/simple; bh=hL7Re/t/yiLNcH5PjRNoJluhv+GCRcTVUyTSOP5c3wU=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=WDSrHRZ1IGRPrbbavMzHpPO5d17rL904WNjdg04ghfE85JUnWYU1KxtSHpQ6LmrFfFNNoURrXMJ57n9tduH1rEXOOOMAg0esE+ik0/5YE0qRVEusBOXqJmAhu2VDQ3DdyyRMF1/0R0dUIVv07H10wkG9mn6Lahk8fooSnwcMV6c= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=WWMu5U4Q; 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="WWMu5U4Q" Received: by smtp.kernel.org (Postfix) with ESMTPS id 12148C4AF0B; Sun, 28 Jun 2026 14:09:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1782655794; bh=hL7Re/t/yiLNcH5PjRNoJluhv+GCRcTVUyTSOP5c3wU=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=WWMu5U4Q+Zdu5U3dBb8W9VXVB+DvlsRDJaCeVaYTx90zNyW30LGomfO729g9o1a6s u3145LlwyPcLonpI95sdlfsKRPKx42dYkQcFiiYouD9G9IEjKEyDFWeBQi3wv+Dug0 A419uIygjixWuN/21dbXvC7jCbbeOYQorMDFbwswpvaLTk57BFRZ+qH4V2WSmzDUqw aU2iA/XRLPUit2+MrxH5q9TAxsoVygTmG65Sau1RFRGFPY4CJ/FgWjwa10kO9g6vpI JehFw/2i5ZMjngleZqIpdlhP0o1/AW855d1OjW+JtlsfHDJWxjtG16p+cCYP0z4a+s 3AwVfS8QOJVOw== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id F1603C43602; Sun, 28 Jun 2026 14:09:53 +0000 (UTC) From: Rodrigo Alencar via B4 Relay Date: Sun, 28 Jun 2026 15:08:10 +0100 Subject: [PATCH v5 03/12] dt-bindings: iio: dac: ad5686: add reset/ldac/gain support Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260628-ad5686-new-features-v5-3-577caadbf7c0@analog.com> References: <20260628-ad5686-new-features-v5-0-577caadbf7c0@analog.com> In-Reply-To: <20260628-ad5686-new-features-v5-0-577caadbf7c0@analog.com> To: Michael Auchter , linux@analog.com, linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-hardening@vger.kernel.org Cc: Michael Hennerich , Jonathan Cameron , David Lechner , Andy Shevchenko , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Philipp Zabel , Kees Cook , "Gustavo A. R. Silva" , Rodrigo Alencar , Conor Dooley X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1782655792; l=2649; i=rodrigo.alencar@analog.com; s=default; h=from:subject:message-id; bh=tqSguVcv0F+ri4HoEKx7VIIb7gTICL++YlTges0Sc4s=; b=t+/YdzSVbKFlJBz+2RNnqhm3tFDldlu9UofnMbSe5nlp/wGXEid8LWc5cIQPRCDXvk1cp4myx 4aJAWuyMoeqBTbUDuU63CAJaLygcO5VOp0b5Dq5P9l21mIQrYtVo8vv X-Developer-Key: i=rodrigo.alencar@analog.com; a=ed25519; pk=ULeHbgU/OYh/PG/4anHDfLgldFItQHAhOktYRVLMFRo= X-Endpoint-Received: by B4 Relay for rodrigo.alencar@analog.com/default with auth_id=561 X-Original-From: Rodrigo Alencar Reply-To: rodrigo.alencar@analog.com From: Rodrigo Alencar Add GPIO property for RESET, LDAC and GAIN pin. RESET is active-low, LDAC is used to load DAC channels with values from input registers and GAIN can double the voltage in output channels. The gain-gpios property is not available to all supported parts. The adi,range-double property indicates that GAIN pin is hardwired to high in case gain-gpios is not set, otherwise it sets the initial value for the gain setting. Acked-by: Conor Dooley Signed-off-by: Rodrigo Alencar --- .../devicetree/bindings/iio/dac/adi,ad5686.yaml | 38 ++++++++++++++++++++++ 1 file changed, 38 insertions(+) diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad5686.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad5686.yaml index 713f535bb33a..d781baca6a6c 100644 --- a/Documentation/devicetree/bindings/iio/dac/adi,ad5686.yaml +++ b/Documentation/devicetree/bindings/iio/dac/adi,ad5686.yaml @@ -35,17 +35,53 @@ properties: vcc-supply: description: If not supplied the internal reference is used. + reset-gpios: + description: Active-low RESET pin to reset the device. + maxItems: 1 + + ldac-gpios: + description: + Active-low LDAC pin used to asynchronously update the DAC channels. + maxItems: 1 + + gain-gpios: + description: + GAIN pin that sets a multiplier for the DAC output voltage. When high, + the DAC output voltage is multiplied by 2, otherwise it is unchanged. + maxItems: 1 + + adi,range-double: + description: + Sets the initial voltage output range from 0 to 2xVREF. On devices that + have a GAIN pin and no gain-gpios property is set, this indicates the pin + is hardwired high. + type: boolean + required: - compatible - reg allOf: - $ref: /schemas/spi/spi-peripheral-props.yaml# + - if: + properties: + compatible: + contains: + enum: + - adi,ad5310r + - adi,ad5681r + - adi,ad5682r + - adi,ad5683 + - adi,ad5683r + then: + properties: + gain-gpios: false unevaluatedProperties: false examples: - | + #include spi { #address-cells = <1>; #size-cells = <0>; @@ -53,6 +89,8 @@ examples: reg = <0>; compatible = "adi,ad5310r"; vcc-supply = <&dac_vref0>; + reset-gpios = <&gpio0 0 GPIO_ACTIVE_LOW>; + ldac-gpios = <&gpio0 1 GPIO_ACTIVE_LOW>; }; }; ... -- 2.43.0