From: Songjun Wu <songjun.wu@atmel.com>
To: <laurent.pinchart@ideasonboard.com>, <nicolas.ferre@atmel.com>,
<boris.brezillon@free-electrons.com>,
<alexandre.belloni@free-electrons.com>, <robh@kernel.org>
Cc: <linux-arm-kernel@lists.infradead.org>,
Songjun Wu <songjun.wu@atmel.com>, <devicetree@vger.kernel.org>,
Kumar Gala <galak@codeaurora.org>, <linux-kernel@vger.kernel.org>,
Ian Campbell <ijc+devicetree@hellion.org.uk>,
Rob Herring <robh+dt@kernel.org>, Pawel Moll <pawel.moll@arm.com>,
Mark Rutland <mark.rutland@arm.com>
Subject: [PATCH v5 2/2] [media] atmel-isc: DT binding for Image Sensor Controller driver
Date: Fri, 17 Jun 2016 16:57:14 +0800 [thread overview]
Message-ID: <1466153854-30272-3-git-send-email-songjun.wu@atmel.com> (raw)
In-Reply-To: <1466153854-30272-1-git-send-email-songjun.wu@atmel.com>
DT binding documentation for ISC driver.
Signed-off-by: Songjun Wu <songjun.wu@atmel.com>
---
Changes in v5:
- Add clock names.
Changes in v4:
- Remove the isc clock nodes.
Changes in v3:
- Remove the 'atmel,sensor-preferred'.
- Modify the isc clock node according to the Rob's remarks.
Changes in v2:
- Remove the unit address of the endpoint.
- Add the unit address to the clock node.
- Avoid using underscores in node names.
- Drop the "0x" in the unit address of the i2c node.
- Modify the description of 'atmel,sensor-preferred'.
- Add the description for the ISC internal clock.
.../devicetree/bindings/media/atmel-isc.txt | 64 ++++++++++++++++++++++
1 file changed, 64 insertions(+)
create mode 100644 Documentation/devicetree/bindings/media/atmel-isc.txt
diff --git a/Documentation/devicetree/bindings/media/atmel-isc.txt b/Documentation/devicetree/bindings/media/atmel-isc.txt
new file mode 100644
index 0000000..9558a77
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/atmel-isc.txt
@@ -0,0 +1,64 @@
+Atmel Image Sensor Controller (ISC)
+----------------------------------------------
+
+Required properties for ISC:
+- compatible
+ Must be "atmel,sama5d2-isc".
+- reg
+ Physical base address and length of the registers set for the device.
+- interrupts
+ Should contain IRQ line for the ISC.
+- clocks
+ List of clock specifiers, corresponding to entries in
+ the clock-names property;
+ Please refer to clock-bindings.txt.
+- clock-names
+ Required elements: "hclock".
+- #clock-cells
+ Should be 0.
+- clock-output-names
+ Should contain the name of the clock driving the sensor master clock.
+- pinctrl-names, pinctrl-0
+ Please refer to pinctrl-bindings.txt.
+
+ISC supports a single port node with parallel bus. It should contain one
+'port' child node with child 'endpoint' node. Please refer to the bindings
+defined in Documentation/devicetree/bindings/media/video-interfaces.txt.
+
+Example:
+isc: isc@f0008000 {
+ compatible = "atmel,sama5d2-isc";
+ reg = <0xf0008000 0x4000>;
+ interrupts = <46 IRQ_TYPE_LEVEL_HIGH 5>;
+ clocks = <&isc_clk>, <&iscck>, <&isc_gclk>;
+ clock-names = "hclock", "iscck", "gck";
+ #clock-cells = <0>;
+ clock-output-names = "isc-mck";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_isc_base &pinctrl_isc_data_8bit &pinctrl_isc_data_9_10 &pinctrl_isc_data_11_12>;
+
+ port {
+ isc_0: endpoint {
+ remote-endpoint = <&ov7740_0>;
+ hsync-active = <1>;
+ vsync-active = <0>;
+ pclk-sample = <1>;
+ };
+ };
+};
+
+i2c1: i2c@fc028000 {
+ ov7740: camera@21 {
+ compatible = "ovti,ov7740";
+ reg = <0x21>;
+ clocks = <&isc>;
+ clock-names = "xvclk";
+ assigned-clocks = <&isc>;
+ assigned-clock-rates = <24000000>;
+
+ port {
+ ov7740_0: endpoint {
+ remote-endpoint = <&isc_0>;
+ };
+ };
+};
--
2.7.4
next prev parent reply other threads:[~2016-06-17 9:08 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-17 8:57 [PATCH v5 0/2] [media] atmel-isc: add driver for Atmel ISC Songjun Wu
2016-06-17 8:57 ` [PATCH v5 1/2] [media] atmel-isc: add the Image Sensor Controller code Songjun Wu
2016-06-17 8:57 ` Songjun Wu [this message]
2016-06-20 13:25 ` [PATCH v5 2/2] [media] atmel-isc: DT binding for Image Sensor Controller driver Rob Herring
2016-06-24 5:54 ` Wu, Songjun
2016-06-24 7:35 ` Boris Brezillon
2016-06-24 8:56 ` Wu, Songjun
2016-07-01 12:20 ` [PATCH v5 0/2] [media] atmel-isc: add driver for Atmel ISC Hans Verkuil
2016-07-04 3:04 ` Wu, Songjun
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