linux-kernel - [PATCH v3 1/1] dt-bindings: iio: pressure: bmp085: Add SPI interface

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Message-ID: <20241209233845.29539-2-vassilisamir@gmail.com>
Date: Tue, 10 Dec 2024 00:38:45 +0100
From: Vasileios Amoiridis <vassilisamir@...il.com>
To: jic23@...nel.org,
	lars@...afoo.de,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org
Cc: ak@...klinger.de,
	linux-iio@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Vasileios Amoiridis <vassilisamir@...il.com>,
	Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH v3 1/1] dt-bindings: iio: pressure: bmp085: Add SPI interface

The BMP{2,3,5}80 and BME280 devices have an SPI interface, so include it
in the device-tree.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Signed-off-by: Vasileios Amoiridis <vassilisamir@...il.com>
---
 .../bindings/iio/pressure/bmp085.yaml         | 30 +++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/Documentation/devicetree/bindings/iio/pressure/bmp085.yaml b/Documentation/devicetree/bindings/iio/pressure/bmp085.yaml
index cb201cecfa1a..017abe8eb9c5 100644
--- a/Documentation/devicetree/bindings/iio/pressure/bmp085.yaml
+++ b/Documentation/devicetree/bindings/iio/pressure/bmp085.yaml
@@ -55,12 +55,16 @@ properties:
       If not set, defaults to push-pull configuration.
     type: boolean
 
+  spi-max-frequency:
+    maximum: 10000000
+
 required:
   - compatible
   - vddd-supply
   - vdda-supply
 
 allOf:
+  - $ref: /schemas/spi/spi-peripheral-props.yaml#
   - if:
       properties:
         compatible:
@@ -73,6 +77,16 @@ allOf:
     then:
       properties:
         interrupts: false
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - bosch,bmp085
+              - bosch,bmp180
+    then:
+      properties:
+        spi-max-frequency: false
 
 additionalProperties: false
 
@@ -93,3 +107,19 @@ examples:
             vdda-supply = <&bar>;
         };
     };
+  - |
+    # include <dt-bindings/gpio/gpio.h>
+    # include <dt-bindings/interrupt-controller/irq.h>
+    spi {
+        #address-cells = <1>;
+        #size-cells = <0>;
+        pressure@0 {
+            compatible = "bosch,bmp280";
+            reg = <0>;
+            spi-max-frequency = <10000000>;
+            reset-gpios = <&gpio0 26 GPIO_ACTIVE_LOW>;
+            vddd-supply = <&foo>;
+            vdda-supply = <&bar>;
+        };
+    };
+
-- 
2.43.0