Received-SPF: pass (google.com: domain of linux-kernel+bounces-70786-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.199.223 as permitted sender) client-ip=147.75.199.223;
Received-SPF: Pass (protection.outlook.com: domain of topic.nl designates
 20.93.157.195 as permitted sender) receiver=protection.outlook.com;
 client-ip=20.93.157.195; helo=westeu11-emailsignatures-cloud.codetwo.com;
 pr=C
Authentication-Results-Original: dkim=none (message not signed)
 header.d=none;dmarc=none action=none header.from=topic.nl;
From: Mike Looijmans <mike.looijmans@topic.nl>
To: devicetree@vger.kernel.org,
	linux-iio@vger.kernel.org
CC: Mike Looijmans <mike.looijmans@topic.nl>,
	Conor Dooley <conor.dooley@microchip.com>,
	Conor Dooley <conor+dt@kernel.org>,
	Jonathan Cameron <jic23@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Lars-Peter Clausen <lars@metafoo.de>,
	Rob Herring <robh+dt@kernel.org>,
	linux-kernel@vger.kernel.org
Subject: [PATCH v6 1/2] dt-bindings: iio: adc: ti-ads1298: Add bindings
Date: Mon, 19 Feb 2024 07:50:25 +0100
Message-ID: <20240219065026.578517-1-mike.looijmans@topic.nl>
Content-Transfer-Encoding: quoted-printable
Content-Type: text/plain
Precedence: bulk
MIME-Version: 1.0
X-Microsoft-Antispam-Message-Info-Original:
 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
X-Forefront-Antispam-Report-Untrusted:
 CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:AS8PR04MB8644.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230031)(39830400003)(136003)(366004)(376002)(346002)(396003)(230922051799003)(230273577357003)(64100799003)(451199024)(1800799012)(186009)(5660300002)(2906002)(44832011)(38350700005)(2616005)(36756003)(1076003)(478600001)(6506007)(26005)(6512007)(6486002)(966005)(52116002)(38100700002)(83380400001)(86362001)(8676002)(4326008)(8936002)(66476007)(66556008)(66946007)(41300700001)(54906003)(6666004)(316002);DIR:OUT;SFP:1102;
X-MS-Exchange-Transport-CrossTenantHeadersStamped: AS5PR04MB10042
X-CodeTwo-MessageID: 070c57f8-bef9-4f6f-a43b-ee46d3e31a48.20240219065038@westeu11-emailsignatures-cloud.codetwo.com
X-CodeTwoProcessed: true
References: <1b153bce-a66a-45ee-a5c6-963ea6fb1c82.949ef384-8293-46b8-903f-40a477c056ae.34241f85-94f2-4dc5-88fc-82d371821088@emailsignatures365.codetwo.com>
X-EOPAttributedMessage: 0
X-MS-Exchange-Transport-CrossTenantHeadersStripped:
 DB5PEPF00014B8B.eurprd02.prod.outlook.com
X-MS-PublicTrafficType: Email
X-MS-Office365-Filtering-Correlation-Id-Prvs:
	0be235c6-73fe-4f77-5d8a-08dc3117131d
X-Microsoft-Antispam: BCL:0;
X-Microsoft-Antispam-Message-Info:
	I/IQtFwVWJE73fHbACyKNXol187UTSs7QIbKgRTNAJAbMdkmIwYjny4F81jQA1PT4WCVb2/r1ek9zWfRuK4zRVQ638/hTC/WKJn3r5zJhjRcARnOXAFqNMFy0AdP5FauRPpjvMc/+FbmGaF7sF/cf9ZSUpGGC5HesgysHupRy45pMQ62aOAH1NMkxZvITAZ+iW8Tc8fhAzQ0ag50jkud46OQB5Kmzvb4g6ZTiq0rDS2h7pgPTQsDnw9zwkPT64XAtDoRxEdojuO8kGzGPeBwWFY2ZQXk+RdQSh3+Hzp/3qNqRdx5wys6sdOg326/tdxql881pvz6W5YfrRUufeMGIBBh/KJ0JIZCXcbE1R/Wb8tYssL3Lf0zTIRUwWdnxtVh1vpy9lt+SnN21ksMkZICh+Y35xybzZgNqdJu0k0PQFYVcSQujj/xlUGxQ6VE6eubayOKexv+Vt01gmyDKS4+l58PNMQw28CY3p1+OXfjtd5ui7TaSwV5MwR125uYqEOWgqTgdIqhLD+ZpMzWv+S3Y0PiNVR9Bt358wEYirveCaRlP1DbLYePjdumMaDjeRa+jW5txRIPJQdyKFAkZ6rRsKHSG/DF+PwHMkN730W1Y05Jz3LCeP61TzauWP7hP+TdQifEduWZNWtDzChez6SvfA==
X-Forefront-Antispam-Report:
	CIP:20.93.157.195;CTRY:NL;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:westeu11-emailsignatures-cloud.codetwo.com;PTR:westeu11-emailsignatures-cloud.codetwo.com;CAT:NONE;SFS:(13230031)(4636009)(39830400003)(376002)(396003)(346002)(136003)(230273577357003)(230922051799003)(451199024)(1800799012)(186009)(82310400011)(64100799003)(36860700004)(46966006)(86362001)(15974865002)(36756003)(356005)(7596003)(7636003)(966005)(6486002)(6506007)(6512007)(478600001)(316002)(6666004)(54906003)(83380400001)(336012)(41300700001)(2616005)(26005)(1076003)(2906002)(44832011)(4326008)(5660300002)(70586007)(70206006)(8936002)(8676002);DIR:OUT;SFP:1102;
X-OriginatorOrg: topic.nl
X-MS-Exchange-CrossTenant-OriginalArrivalTime: 19 Feb 2024 06:50:39.1791
 (UTC)
X-MS-Exchange-CrossTenant-Network-Message-Id: 942d2320-81e1-4c4c-7ba0-08dc31171573
X-MS-Exchange-CrossTenant-Id: 449607a5-3517-482d-8d16-41dd868cbda3
X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=449607a5-3517-482d-8d16-41dd868cbda3;Ip=[20.93.157.195];Helo=[westeu11-emailsignatures-cloud.codetwo.com]
X-MS-Exchange-CrossTenant-AuthSource:
	DB5PEPF00014B8B.eurprd02.prod.outlook.com
X-MS-Exchange-CrossTenant-AuthAs: Anonymous
X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem
X-MS-Exchange-Transport-CrossTenantHeadersStamped: PAXPR04MB8489

Bindings for the TI ADS1298 medical ADC. This device is
typically used for ECG and similar measurements. Supports data
acquisition at configurable scale and sampling frequency.

The device has so many options for connecting stuff, at this
point the bindings aren't nearly complete but partial bindings
are better than no bindings at all.

Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>

---

(no changes since v2)

Changes in v2:
Remove "clk" name
Add datasheet and "incomplete" note

 .../bindings/iio/adc/ti,ads1298.yaml          | 80 +++++++++++++++++++
 1 file changed, 80 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/iio/adc/ti,ads1298.ya=
ml

diff --git a/Documentation/devicetree/bindings/iio/adc/ti,ads1298.yaml b/Do=
cumentation/devicetree/bindings/iio/adc/ti,ads1298.yaml
new file mode 100644
index 000000000000..bf5a43a81d59
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/ti,ads1298.yaml
@@ -0,0 +1,80 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/ti,ads1298.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments' ads1298 medical ADC chips
+
+description: |
+  Datasheet at: https://www.ti.com/product/ADS1298
+  Bindings for this chip aren't complete.
+
+maintainers:
+  - Mike Looijmans <mike.looijmans@topic.nl>
+
+properties:
+  compatible:
+    enum:
+      - ti,ads1298
+
+  reg:
+    maxItems: 1
+
+  spi-cpha: true
+
+  reset-gpios:
+    maxItems: 1
+
+  avdd-supply:
+    description:
+      Analog power supply, voltage between AVDD and AVSS. When providing a
+      symmetric +/- 2.5V, the regulator should report 5V.
+
+  vref-supply:
+    description:
+      Optional reference voltage. If omitted, internal reference is used,
+      which is 2.4V when analog supply is below 4.4V, 4V otherwise.
+
+  clocks:
+    description: Optional 2.048 MHz external source clock on CLK pin
+    maxItems: 1
+
+  interrupts:
+    description: Interrupt on DRDY pin, triggers on falling edge
+    maxItems: 1
+
+  label: true
+
+required:
+  - compatible
+  - reg
+  - avdd-supply
+  - interrupts
+
+allOf:
+  - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+    spi {
+        #address-cells =3D <1>;
+        #size-cells =3D <0>;
+
+        adc@1 {
+          reg =3D <1>;
+          compatible =3D "ti,ads1298";
+          label =3D "ads1298-1-ecg";
+          avdd-supply =3D <&reg_iso_5v_a>;
+          clocks =3D <&clk_ads1298>;
+          interrupt-parent =3D <&gpio0>;
+          interrupts =3D <78 IRQ_TYPE_EDGE_FALLING>;
+          spi-max-frequency =3D <20000000>;
+          spi-cpha;
+        };
+    };
+...
--=20
2.34.1


Met vriendelijke groet / kind regards,=0A=
=0A=
Mike Looijmans=0A=
System Expert=0A=
=0A=
=0A=
TOPIC Embedded Products B.V.=0A=
Materiaalweg 4, 5681 RJ Best=0A=
The Netherlands=0A=
=0A=
T: +31 (0) 499 33 69 69=0A=
E: mike.looijmans@topic.nl=0A=
W: www.topic.nl=0A=
=0A=
Please consider the environment before printing this e-mail=0A=