From: Robert Foss <robert.foss@linaro.org>
To: ben.kao@intel.com, mchehab@kernel.org, robh+dt@kernel.org,
mark.rutland@arm.com, matthias.bgg@gmail.com,
davem@davemloft.net, gregkh@linuxfoundation.org,
Jonathan.Cameron@huawei.com, andriy.shevchenko@linux.intel.com,
linux-media@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-mediatek@lists.infradead.org,
Dongchun Zhu <dongchun.zhu@mediatek.com>
Cc: Robert Foss <robert.foss@linaro.org>, Tomasz Figa <tfiga@chromium.org>
Subject: [v1 1/3] media: dt-bindings: ov8856: Document YAML bindings
Date: Tue, 10 Mar 2020 14:46:01 +0100 [thread overview]
Message-ID: <20200310134603.30260-2-robert.foss@linaro.org> (raw)
In-Reply-To: <20200310134603.30260-1-robert.foss@linaro.org>
From: Dongchun Zhu <dongchun.zhu@mediatek.com>
This patch adds documentation of device tree in YAML schema for the
OV8856 CMOS image sensor.
Signed-off-by: Dongchun Zhu <dongchun.zhu@mediatek.com>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
---
- Changes since v3:
* robher: Fix syntax error
* robher: Removed maxItems
* Fixes yaml 'make dt-binding-check' errors
- Changes since v2:
Fixes comments from from Andy, Tomasz, Sakari, Rob.
* Convert text documentation to YAML schema.
- Changes since v1:
Fixes comments from Sakari, Tomasz
* Add clock-frequency and link-frequencies in DT
.../devicetree/bindings/media/i2c/ov8856.yaml | 129 ++++++++++++++++++
MAINTAINERS | 1 +
2 files changed, 130 insertions(+)
create mode 100644 Documentation/devicetree/bindings/media/i2c/ov8856.yaml
diff --git a/Documentation/devicetree/bindings/media/i2c/ov8856.yaml b/Documentation/devicetree/bindings/media/i2c/ov8856.yaml
new file mode 100644
index 000000000000..c8099ccab1d9
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/i2c/ov8856.yaml
@@ -0,0 +1,129 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright (c) 2019 MediaTek Inc.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/i2c/ov8856.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Omnivision OV8856 CMOS Sensor Device Tree Bindings
+
+maintainers:
+ - Ben Kao <ben.kao@intel.com>
+ - Dongchun Zhu <dongchun.zhu@mediatek.com>
+
+description: |-
+ The Omnivision OV8856 is a high performance, 1/4-inch, 8 megapixel, CMOS
+ image sensor that delivers 3264x2448 at 30fps. It provides full-frame,
+ sub-sampled, and windowed 10-bit MIPI images in various formats via the
+ Serial Camera Control Bus (SCCB) interface. This chip is programmable
+ through I2C and two-wire SCCB. The sensor output is available via CSI-2
+ serial data output (up to 4-lane).
+
+properties:
+ compatible:
+ const: ovti,ov8856
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ description:
+ Input clock for the sensor.
+ items:
+ - const: xvclk
+
+ clock-frequency:
+ description:
+ Frequency of the xvclk clock in Hertz.
+
+ dovdd-supply:
+ description:
+ Definition of the regulator used as interface power supply.
+
+ avdd-supply:
+ description:
+ Definition of the regulator used as analog power supply.
+
+ dvdd-supply:
+ description:
+ Definition of the regulator used as digital power supply.
+
+ reset-gpios:
+ description:
+ The phandle and specifier for the GPIO that controls sensor reset.
+
+ port:
+ type: object
+ additionalProperties: false
+ description:
+ A node containing input and output port nodes with endpoint definitions
+ as documented in
+ Documentation/devicetree/bindings/media/video-interfaces.txt
+
+ properties:
+ endpoint:
+ type: object
+
+ properties:
+ clock-lanes:
+ maxItems: 1
+
+ data-lanes:
+ maxItems: 1
+
+ remote-endpoint: true
+
+ required:
+ - clock-lanes
+ - data-lanes
+ - remote-endpoint
+
+ required:
+ - endpoint
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - clock-frequency
+ - dovdd-supply
+ - avdd-supply
+ - dvdd-supply
+ - reset-gpios
+ - port
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ ov8856: camera-sensor@10 {
+ compatible = "ovti,ov8856";
+ reg = <0x10>;
+ reset-gpios = <&pio 111 GPIO_ACTIVE_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&clk_24m_cam>;
+
+ clocks = <&cru SCLK_TESTCLKOUT1>;
+ clock-names = "xvclk";
+ clock-frequency = <19200000>;
+
+ avdd-supply = <&mt6358_vcama2_reg>;
+ dvdd-supply = <&mt6358_vcamd_reg>;
+ dovdd-supply = <&mt6358_vcamio_reg>;
+
+ port {
+ wcam_out: endpoint {
+ remote-endpoint = <&mipi_in_wcam>;
+ data-lanes = <1 2 3 4>;
+ link-frequencies = /bits/ 64 <360000000 180000000>;
+ };
+ };
+ };
+
+...
\ No newline at end of file
diff --git a/MAINTAINERS b/MAINTAINERS
index a6fbdf354d34..0f99e863978a 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -12355,6 +12355,7 @@ L: linux-media@vger.kernel.org
T: git git://linuxtv.org/media_tree.git
S: Maintained
F: drivers/media/i2c/ov8856.c
+F: Documentation/devicetree/bindings/media/i2c/ov8856.yaml
OMNIVISION OV9650 SENSOR DRIVER
M: Sakari Ailus <sakari.ailus@linux.intel.com>
--
2.20.1
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next prev parent reply other threads:[~2020-03-10 13:46 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-10 13:46 [v1 0/3] media: ov8856: Add sensor modes & devicetree support Robert Foss
2020-03-10 13:46 ` Robert Foss [this message]
2020-03-10 13:57 ` [v1 1/3] media: dt-bindings: ov8856: Document YAML bindings Fabio Estevam
2020-03-10 15:51 ` Robert Foss
2020-03-12 10:13 ` Robert Foss
2020-03-10 18:38 ` Rob Herring
2020-03-10 13:46 ` [v1 2/3] media: ov8856: Add devicetree support Robert Foss
2020-03-10 14:03 ` Fabio Estevam
2020-03-10 15:46 ` Robert Foss
2020-03-10 14:26 ` Andy Shevchenko
2020-03-10 15:55 ` Robert Foss
2020-03-11 9:05 ` Andy Shevchenko
2020-03-11 11:48 ` Sakari Ailus
2020-03-11 13:32 ` Robert Foss
2020-03-11 16:16 ` Sakari Ailus
2020-03-10 13:46 ` [v1 3/3] media: ov8856: Implement sensor module revision identification Robert Foss
2020-03-10 14:30 ` Andy Shevchenko
2020-03-12 16:37 ` Robert Foss
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