From patchwork Fri Nov 15 20:18:53 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Lechner X-Patchwork-Id: 13876770 Received: from mail-oa1-f44.google.com (mail-oa1-f44.google.com [209.85.160.44]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D5FCC1F8F15 for ; Fri, 15 Nov 2024 20:19:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.160.44 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731701952; cv=none; b=ieMAkst7CB68amn7TDb5VIONZMnPk3Z2PFpZZTJitXqy797pVackTfrEHAzq/HbK4pgDl8BeKJml4YF4HMD8Bo3UT87APq5fgXwN8f8h4CKzjD/WfBhqtkoaGYq9aof5qMsZKWjX5EOSjkgnExe1FXmY1IIFg/4pcuAf5r+5MJc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731701952; c=relaxed/simple; bh=S/ZB5G447JrD+Sj23MWpY7n93070DqnmYQOxfSZ5VDw=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=jdfeUGUf0wJyCM9OawkBxKYuGbitDygdlnCrWHjJNLhxeUGRK/X4HF4wCtu0ba5EOtf6CEIROxpCjgLlUYUnIx9CKz+zSad8vV7FKBgwareHtY8w7xUqQ90XcAHXlM+ZjXWFQ5COC8f0BQWQJOdwFhEmJy+19IuUluTbBnP4wV4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=baylibre.com; spf=pass smtp.mailfrom=baylibre.com; dkim=pass (2048-bit key) header.d=baylibre-com.20230601.gappssmtp.com header.i=@baylibre-com.20230601.gappssmtp.com header.b=2qOSNTK+; arc=none smtp.client-ip=209.85.160.44 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=baylibre.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=baylibre.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=baylibre-com.20230601.gappssmtp.com header.i=@baylibre-com.20230601.gappssmtp.com header.b="2qOSNTK+" Received: by mail-oa1-f44.google.com with SMTP id 586e51a60fabf-290c69be014so4498fac.3 for ; Fri, 15 Nov 2024 12:19:09 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20230601.gappssmtp.com; s=20230601; t=1731701949; x=1732306749; darn=vger.kernel.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=hZDnLi74GMbcbXDL9gHZvGllU4Iq2w9PER/wlLwda4Y=; b=2qOSNTK+ZdWud8H4mHw9PaZ+HHyD6VIedYFPEMmTh/h+bdW24SxtzUNkoCCAy7l1cR DkN9bdW8PIezIyDxHzG6L7oCaaJpQ3d28KvAwhQ8tZ7Wg7pFySN9W8ujAbUjfVxGNRTU HtblVt/burP9cVxHWDwvmdJGYSGw786hwPnXbV1f+El0+qgJBbs/Km0psT9ZF9hshpnP 9h7QnhLlcGUVCfeXhE6xlCRwPGcKdQGnExFPLXuuKFZ12vYY1Z9VNHfYITG+G6zoL2Vb 77iTLnFW/FTOXORJx+FGJiHa8uL/YJEYpcuXnbbbbsDvSm/b8xml8TOqG0AK5xCNNXiF XJeA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1731701949; x=1732306749; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=hZDnLi74GMbcbXDL9gHZvGllU4Iq2w9PER/wlLwda4Y=; b=bul99dAwncFgZBxNWOKZom4lAHPXZo8xtoz28VpUWD5erazTES9zVWPjI2IYt1wOgW Xe9Z9Y5Mvch9bLk57h0p2uCubbPQ1PKsb9NjFIPXIejhOodW3YQFeQiN4zAqIzCH30eA 3/4HWewcR1jbVutyLhcplrDqBSGWTXd7ENfQ2NZiOC0kWLNwVUGrmDrAGQB0ZM64ASV6 XS8z68f3jzScevq0ROdLp6zcQHUDUszViPzqR75gs8VU1gO3V3FYpts/fWye+66yocc+ q9S1B3Ln90IZv1LgizMakyPZwITPizTp0P3Ocv4srBbPcwSogmFSVbzP2222t3+a+c7M 4uNw== X-Forwarded-Encrypted: i=1; AJvYcCVCFYO5CuK10xoXjovpWTdQ5vFtgEIp/ABmEpdnmKQB1UnMwYGd637xbgjXHMaDLU95A9qUhlZmTlM=@vger.kernel.org X-Gm-Message-State: AOJu0Yw5xqmxT8SQ5F+Lp1QxdvqgcPWzpUl0ZBOtHMZfWimFRtJhK0LW KrLfNwq7CNjTcYah+LUf+Ja74aBaOo2lzkFM9F81h+XwEBKPeaZ9Uc0FM2gkIh8= X-Google-Smtp-Source: AGHT+IEAilK2ZOpQfbXmxKo0iagU/D0Z/JRkDI6Rf6wF0ylOLjKlbR82USKYPG9tkrONhOjTLTEPXA== X-Received: by 2002:a05:6870:7a08:b0:26f:ddfa:3564 with SMTP id 586e51a60fabf-2962dcca0d7mr4563036fac.6.1731701949133; Fri, 15 Nov 2024 12:19:09 -0800 (PST) Received: from [127.0.1.1] (ip98-183-112-25.ok.ok.cox.net. [98.183.112.25]) by smtp.gmail.com with ESMTPSA id 46e09a7af769-71a780ea62esm748978a34.5.2024.11.15.12.19.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 15 Nov 2024 12:19:08 -0800 (PST) From: David Lechner Date: Fri, 15 Nov 2024 14:18:53 -0600 Subject: [PATCH v5 14/16] dt-bindings: iio: adc: adi,ad4695: add SPI offload properties Precedence: bulk X-Mailing-List: linux-iio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20241115-dlech-mainline-spi-engine-offload-2-v5-14-bea815bd5ea5@baylibre.com> References: <20241115-dlech-mainline-spi-engine-offload-2-v5-0-bea815bd5ea5@baylibre.com> In-Reply-To: <20241115-dlech-mainline-spi-engine-offload-2-v5-0-bea815bd5ea5@baylibre.com> To: Mark Brown , Jonathan Cameron , Rob Herring , Krzysztof Kozlowski , Conor Dooley , =?utf-8?q?Nuno_S=C3=A1?= Cc: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= , Michael Hennerich , Lars-Peter Clausen , David Jander , Martin Sperl , linux-spi@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-iio@vger.kernel.org, linux-pwm@vger.kernel.org, David Lechner X-Mailer: b4 0.14.1 Add a pwms property to the adi,ad4695 binding to specify an optional PWM output connected to the CNV pin on the ADC. Also add #trigger-source-cells property to allow the BUSY output to be used as a SPI offload trigger source to indicate when a sample is ready to be read. Macros are added to adi,ad4695.h for the cell values to help with readability since they are arbitrary values. The $ref for spi-peripheral-props.yaml is moved to keep similar $refs grouped together. Signed-off-by: David Lechner --- v5 changes: * Added macros for cell values v4 changes: new patch in v4 --- .../devicetree/bindings/iio/adc/adi,ad4695.yaml | 16 ++++++++++++++-- include/dt-bindings/iio/adc/adi,ad4695.h | 7 +++++++ 2 files changed, 21 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad4695.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad4695.yaml index 7d2229dee444..c0d4e4ff62a4 100644 --- a/Documentation/devicetree/bindings/iio/adc/adi,ad4695.yaml +++ b/Documentation/devicetree/bindings/iio/adc/adi,ad4695.yaml @@ -18,8 +18,6 @@ description: | * https://www.analog.com/en/products/ad4697.html * https://www.analog.com/en/products/ad4698.html -$ref: /schemas/spi/spi-peripheral-props.yaml# - properties: compatible: enum: @@ -84,6 +82,9 @@ properties: description: The Reset Input (RESET). Should be configured GPIO_ACTIVE_LOW. maxItems: 1 + pwms: + description: PWM signal connected to the CNV pin. + interrupts: minItems: 1 items: @@ -106,6 +107,15 @@ properties: The first cell is the GPn number: 0 to 3. The second cell takes standard GPIO flags. + '#trigger-source-cells': + description: | + First cell indicates the output signal: 0 = BUSY, 1 = ALERT. + Second cell indicates which GPn pin is used: 0, 2 or 3. + + For convenience, macros for these values are available in + dt-bindings/iio/adc/adi,ad4695.h. + const: 2 + "#address-cells": const: 1 @@ -166,6 +176,8 @@ required: - vio-supply allOf: + - $ref: /schemas/spi/spi-peripheral-props.yaml# + - $ref: /schemas/spi/trigger-source.yaml# - oneOf: - required: - ldo-in-supply diff --git a/include/dt-bindings/iio/adc/adi,ad4695.h b/include/dt-bindings/iio/adc/adi,ad4695.h index 9fbef542bf67..fea4525d2710 100644 --- a/include/dt-bindings/iio/adc/adi,ad4695.h +++ b/include/dt-bindings/iio/adc/adi,ad4695.h @@ -6,4 +6,11 @@ #define AD4695_COMMON_MODE_REFGND 0xFF #define AD4695_COMMON_MODE_COM 0xFE +#define AD4695_TRIGGER_EVENT_BUSY 0 +#define AD4695_TRIGGER_EVENT_ALERT 1 + +#define AD4695_TRIGGER_PIN_GP0 0 +#define AD4695_TRIGGER_PIN_GP2 2 +#define AD4695_TRIGGER_PIN_GP3 3 + #endif /* _DT_BINDINGS_ADI_AD4695_H */