[PATCH v5 1/4] dt-bindings: media: imx258: add bindings for IMX258 sensor

Krzysztof Kozlowski
2020-10-19T17:03:07Z

Add bindings for the IMX258 camera sensor. The bindings, just like the
driver, are quite limited, e.g. do not support regulator supplies.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>

---

Changes since v4:
1. Add clock-lanes,
2. Add Rob's review,
3. Add one more example and extend existing one,
4. Add common clock properties (assigned-*).

Changes since v3:
1. Document also two lane setup.

Changes since v2:
1. Remove clock-frequency, add reset GPIOs, add supplies.
2. Use additionalProperties.

Changes since v1:
1. None
---
.../devicetree/bindings/media/i2c/imx258.yaml | 140 ++++++++++++++++++
MAINTAINERS | 1 +
2 files changed, 141 insertions(+)
create mode 100644 Documentation/devicetree/bindings/media/i2c/imx258.yaml

diff --git a/Documentation/devicetree/bindings/media/i2c/imx258.yaml b/Documentation/devicetree/bindings/media/i2c/imx258.yaml
new file mode 100644
index 000000000000..4a3471fb88a1
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/i2c/imx258.yaml
@@ -0,0 +1,140 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/i2c/imx258.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sony IMX258 13 Mpixel CMOS Digital Image Sensor
+
+maintainers:
+ - Krzysztof Kozlowski <krzk@kernel.org>
+
+description: |-
+ IMX258 is a diagonal 5.867mm (Type 1/3.06) 13 Mega-pixel CMOS active pixel
+ type stacked image sensor with a square pixel array of size 4208 x 3120. It
+ is programmable through I2C interface. Image data is sent through MIPI
+ CSI-2.
+
+properties:
+ compatible:
+ const: sony,imx258
+
+ assigned-clocks: true
+ assigned-clock-parents: true
+ assigned-clock-rates: true
+
+ clocks:
+ description:
+ Clock frequency from 6 to 27 MHz.
+ maxItems: 1
+
+ reg:
+ maxItems: 1
+
+ reset-gpios:
+ description: |-
+ Reference to the GPIO connected to the XCLR pin, if any.
+
+ vana-supply:
+ description:
+ Analog voltage (VANA) supply, 2.7 V
+
+ vdig-supply:
+ description:
+ Digital I/O voltage (VDIG) supply, 1.2 V
+
+ vif-supply:
+ description:
+ Interface voltage (VIF) supply, 1.8 V
+
+ # See ../video-interfaces.txt for more details
+ port:
+ type: object
+ properties:
+ endpoint:
+ type: object
+ properties:
+ clock-lanes:
+ const: 0
+
+ data-lanes:
+ oneOf:
+ - items:
+ - const: 1
+ - const: 2
+ - const: 3
+ - const: 4
+ - items:
+ - const: 1
+ - const: 2
+
+ link-frequencies:
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint64-array
+ description:
+ Allowed data bus frequencies.
+
+ required:
+ - clock-lanes
+ - data-lanes
+ - link-frequencies
+
+required:
+ - compatible
+ - reg
+ - port
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ sensor@6c {
+ compatible = "sony,imx258";
+ reg = <0x6c>;
+ clocks = <&imx258_clk>;
+
+ port {
+ endpoint {
+ remote-endpoint = <&csi1_ep>;
+ clock-lanes = <0>;
+ data-lanes = <1 2 3 4>;
+ link-frequencies = /bits/ 64 <320000000>;
+ };
+ };
+ };
+ };
+
+ /* Oscillator on the camera board */
+ imx258_clk: clk {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <19200000>;
+ };
+
+ - |
+ i2c0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ sensor@6c {
+ compatible = "sony,imx258";
+ reg = <0x6c>;
+ clocks = <&imx258_clk>;
+
+ assigned-clocks = <&imx258_clk>;
+ assigned-clock-rates = <19200000>;
+
+ port {
+ endpoint {
+ remote-endpoint = <&csi1_ep>;
+ clock-lanes = <0>;
+ data-lanes = <1 2 3 4>;
+ link-frequencies = /bits/ 64 <633600000>;
+ };
+ };
+ };
+ };
diff --git a/MAINTAINERS b/MAINTAINERS
index 5b9621ca2b31..68f30a283a2c 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -16262,6 +16262,7 @@ M: Sakari Ailus <sakari.ailus@linux.intel.com>
L: linux-media@vger.kernel.org
S: Maintained
T: git git://linuxtv.org/media_tree.git
+F: Documentation/devicetree/bindings/media/i2c/imx258.yaml
F: drivers/media/i2c/imx258.c

SONY IMX274 SENSOR DRIVER
--
2.25.1