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 F0EA63D0939; Tue, 23 Jun 2026 10:55:59 +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=1782212160; cv=none; b=PSwY53f9cvX0ZwGt1eAt2IH8Lx/RKWxLIQWqdjlRXyHj1gxsUJgBccT9No5o+dcks6mwJ0ZqnI4gn1tmgYAokrEGvOFnFUnCfQg/hqIJlYCNL19iGrydxVy49iqv8z15SqZIqbjuDOObxCKRY1hrv879VRxY5R6MIAeop6iWvI4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782212160; c=relaxed/simple; bh=/hOn4fySUo5oVZeU7urQX1VDtPgooi3SzYzle9I35Oc=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=C0/IxoZMmW1jueyHXP5NCgFMbY39N1dDNKkc8zvHsNexGmDdIaw190Ij0E5rr+JEnoWpFTaPDmI0x4So3QJ5L5vrQgC4jxi203BNcxs7Mll5/ledVLaSVWlYgHRE2/aHQnxH1YAHHrRUK6os0nlDq91keLSlG9paFGZdOSxkHDE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=fRIuVl0i; 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="fRIuVl0i" Received: by smtp.kernel.org (Postfix) with ESMTPS id 9DA9FC2BCC7; Tue, 23 Jun 2026 10:55:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1782212159; bh=/hOn4fySUo5oVZeU7urQX1VDtPgooi3SzYzle9I35Oc=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=fRIuVl0ihtPoLdFFAePOk6ZyLFsGxN+nTeTgA5Y1jxeQ3/UtyLbtCq6zXCm17u462 KpACJczg8P67w/WydzjskMmRIK3eeE75l8qx2vSVqfjcgUSh0eg4RHrlTcTM4nGZOj Ftm0GcP7xrPQMxP+PF/s1/m8TW3nRVJOPTFG0b20nQ6GIj9mZ/nHxdhioi3YcwDxIH b0nNqYyIymXlothqUEktQsFgRt1+NugXIFMGcKtOmxvr8Z4ouzBeB/JSGbGRhcftKu 4b2lEd4JqTzbZqdWYTwCXfiHfZB55+urH2xCNNKQv8oxNbjoKHnn+GmbUo36OG3TQ+ XQ4WyE29onO6w== 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 84F24CDB470; Tue, 23 Jun 2026 10:55:59 +0000 (UTC) From: Rodrigo Alencar via B4 Relay Date: Tue, 23 Jun 2026 11:55:41 +0100 Subject: [PATCH v4 01/12] dt-bindings: iio: dac: ad5696: add reset/ldac/gain support 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="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260623-ad5686-new-features-v4-1-28962a57db0f@analog.com> References: <20260623-ad5686-new-features-v4-0-28962a57db0f@analog.com> In-Reply-To: <20260623-ad5686-new-features-v4-0-28962a57db0f@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=1782212158; l=2510; i=rodrigo.alencar@analog.com; s=default; h=from:subject:message-id; bh=u5R3874jHfOu97aR2wSSkYPIPtcGkPorklx5wMrHEeo=; b=OvA5hbaO5PZEjLME6BdrrnLEOOS7zu20POPfBYI8tc7v20Pt0TTgrIhRf7ZzpItrwZQpI4s3P tfCN7y1fH3xA3zk+Zpc5wyr940zJcS06jv1VhMrZIgLTPo0pJ85sBya 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,ad5696.yaml | 39 ++++++++++++++++++++++ 1 file changed, 39 insertions(+) diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad5696.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad5696.yaml index b5a88b03dc2f..cc343cdf6085 100644 --- a/Documentation/devicetree/bindings/iio/dac/adi,ad5696.yaml +++ b/Documentation/devicetree/bindings/iio/dac/adi,ad5696.yaml @@ -37,14 +37,52 @@ properties: description: | The regulator supply for DAC reference voltage. + 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: + - if: + properties: + compatible: + contains: + enum: + - adi,ad5311r + - adi,ad5691r + - adi,ad5692r + - adi,ad5693 + - adi,ad5693r + then: + properties: + gain-gpios: false + additionalProperties: false examples: - | + #include i2c { #address-cells = <1>; #size-cells = <0>; @@ -53,6 +91,7 @@ examples: compatible = "adi,ad5696"; reg = <0>; vcc-supply = <&dac_vref>; + ldac-gpios = <&gpio0 1 GPIO_ACTIVE_LOW>; }; }; ... -- 2.43.0