[PATCH v13 1/2] media: dt-bindings: media: i2c: Document OV02A10 bindings

Dongchun Zhu
2020-07-10T10:21:14Z

Add YAML device tree binding for OV02A10 CMOS image sensor,
and the relevant MAINTAINERS entries.

Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dongchun Zhu <dongchun.zhu@mediatek.com>
---
.../bindings/media/i2c/ovti,ov02a10.yaml | 172 +++++++++++++++++++++
MAINTAINERS | 7 +
2 files changed, 179 insertions(+)
create mode 100644 Documentation/devicetree/bindings/media/i2c/ovti,ov02a10.yaml

diff --git a/Documentation/devicetree/bindings/media/i2c/ovti,ov02a10.yaml b/Documentation/devicetree/bindings/media/i2c/ovti,ov02a10.yaml
new file mode 100644
index 0000000..3a916cc
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/i2c/ovti,ov02a10.yaml
@@ -0,0 +1,172 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright (c) 2020 MediaTek Inc.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/i2c/ovti,ov02a10.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Omnivision OV02A10 CMOS Sensor Device Tree Bindings
+
+maintainers:
+ - Dongchun Zhu <dongchun.zhu@mediatek.com>
+
+description: |-
+ The Omnivision OV02A10 is a low-cost, high performance, 1/5-inch, 2 megapixel
+ image sensor, which is the latest production derived from Omnivision's CMOS
+ image sensor technology. Ihis chip supports high frame rate speeds up to 30fps
+ @ 1600x1200 (UXGA) resolution transferred over a 1-lane MIPI interface. The
+ sensor output is available via CSI-2 serial data output.
+
+properties:
+ compatible:
+ const: ovti,ov02a10
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: top mux camtg clock
+ - description: divider clock
+
+ clock-names:
+ items:
+ - const: eclk
+ - const: freq_mux
+
+ clock-frequency:
+ description:
+ Frequency of the eclk clock in Hertz.
+
+ dovdd-supply:
+ description:
+ Definition of the regulator used as Digital I/O voltage supply.
+
+ avdd-supply:
+ description:
+ Definition of the regulator used as Analog voltage supply.
+
+ dvdd-supply:
+ description:
+ Definition of the regulator used as Digital core voltage supply.
+
+ powerdown-gpios:
+ description:
+ Must be the device tree identifier of the GPIO connected to the
+ PD_PAD pin. This pin is used to place the OV02A10 into standby mode
+ or shutdown mode. As the line needs to be high for the powerdown mode
+ to be active, it should be marked GPIO_ACTIVE_HIGH.
+ maxItems: 1
+
+ reset-gpios:
+ description:
+ Must be the device tree identifier of the GPIO connected to the
+ RST_PD pin. If specified, it will be asserted during driver probe.
+ As the line needs to be low for the reset to be active, it should be
+ marked GPIO_ACTIVE_LOW.
+ maxItems: 1
+
+ rotation:
+ description:
+ Definition of the sensor's placement.
+ allOf:
+ - $ref: "/schemas/types.yaml#/definitions/uint32"
+ - enum:
+ - 0 # Sensor Mounted Upright
+ - 180 # Sensor Mounted Upside Down
+ default: 0
+
+ ovti,mipi-tx-speed:
+ description:
+ Indication of MIPI transmission speed select, which is to control D-PHY
+ timing setting by adjusting MIPI clock voltage to improve the clock
+ driver capability.
+ allOf:
+ - $ref: "/schemas/types.yaml#/definitions/uint32"
+ - enum:
+ - 0 # 20MHz - 30MHz
+ - 1 # 30MHz - 50MHz
+ - 2 # 50MHz - 75MHz
+ - 3 # 75MHz - 100MHz
+ - 4 # 100MHz - 130MHz
+ default: 3
+
+ # See ../video-interfaces.txt for details
+ port:
+ type: object
+ additionalProperties: false
+ description:
+ Output port node, single endpoint describing the CSI-2 transmitter.
+
+ properties:
+ endpoint:
+ type: object
+ additionalProperties: false
+
+ properties:
+ link-frequencies: true
+ remote-endpoint: true
+
+ required:
+ - link-frequencies
+ - remote-endpoint
+
+ required:
+ - endpoint
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - clock-frequency
+ - dovdd-supply
+ - avdd-supply
+ - dvdd-supply
+ - powerdown-gpios
+ - reset-gpios
+ - port
+
+additionalProperties: false
+
+examples:
+ - |
+
+ #include <dt-bindings/clock/mt8183-clk.h>
+ #include <dt-bindings/gpio/gpio.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ov02a10: camera-sensor@3d {
+ compatible = "ovti,ov02a10";
+ reg = <0x3d>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&clk_24m_cam>;
+
+ clocks = <&topckgen CLK_TOP_MUX_CAMTG>,
+ <&topckgen CLK_TOP_UNIVP_192M_D8>;
+ clock-names = "eclk", "freq_mux";
+ clock-frequency = <24000000>;
+
+ rotation = <180>;
+ ovti,mipi-tx-speed = <4>;
+
+ dovdd-supply = <&mt6358_vcamio_reg>;
+ avdd-supply = <&mt6358_vcama1_reg>;
+ dvdd-supply = <&mt6358_vcn18_reg>;
+
+ powerdown-gpios = <&pio 107 GPIO_ACTIVE_HIGH>;
+ reset-gpios = <&pio 109 GPIO_ACTIVE_LOW>;
+
+ port {
+ wcam_out: endpoint {
+ link-frequencies = /bits/ 64 <390000000>;
+ remote-endpoint = <&mipi_in_wcam>;
+ };
+ };
+ };
+ };
+
+...
diff --git a/MAINTAINERS b/MAINTAINERS
index 68f21d4..378c961 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -12560,6 +12560,13 @@ M: Harald Welte <laforge@gnumonks.org>
S: Maintained
F: drivers/char/pcmcia/cm4040_cs.*

+OMNIVISION OV02A10 SENSOR DRIVER
+M: Dongchun Zhu <dongchun.zhu@mediatek.com>
+L: linux-media@vger.kernel.org
+S: Maintained
+T: git git://linuxtv.org/media_tree.git
+F: Documentation/devicetree/bindings/media/i2c/ovti,ov02a10.yaml
+
OMNIVISION OV13858 SENSOR DRIVER
M: Sakari Ailus <sakari.ailus@linux.intel.com>
L: linux-media@vger.kernel.org
--
2.9.2