On 08/21/2013 08:34 AM, Arun Kumar K wrote:
From: Shaik Ameer Basha<shaik.ameer@xxxxxxxxxxx>
This patch adds support for media device for EXYNOS5 SoCs.
The current media device supports the following ips to connect
through the media controller framework.
* MIPI-CSIS
Support interconnection(subdev interface) between devices
* FIMC-LITE
Support capture interface from device(Sensor, MIPI-CSIS) to memory
Support interconnection(subdev interface) between devices
* FIMC-IS
Camera post-processing IP having multiple sub-nodes.
G-Scaler will be added later to the current media device.
The media device creates two kinds of pipelines for connecting
the above mentioned IPs.
The pipeline0 is uses Sensor, MIPI-CSIS and FIMC-LITE which captures
image data and dumps to memory.
Pipeline1 uses FIMC-IS components for doing post-processing
operations on the captured image and give scaled YUV output.
Pipeline0
+--------+ +-----------+ +-----------+ +--------+
| Sensor | --> | MIPI-CSIS | --> | FIMC-LITE | --> | Memory |
+--------+ +-----------+ +-----------+ +--------+
Pipeline1
+--------+ +--------+ +-----------+ +-----------+
| Memory | --> | ISP | --> | SCC | --> | SCP |
+--------+ +--------+ +-----------+ +-----------+
Signed-off-by: Shaik Ameer Basha<shaik.ameer@xxxxxxxxxxx>
Signed-off-by: Arun Kumar K<arun.kk@xxxxxxxxxxx>
---
.../bindings/media/exynos5250-camera.txt | 126 ++
drivers/media/platform/exynos5-is/exynos5-mdev.c | 1210 ++++++++++++++++++++
drivers/media/platform/exynos5-is/exynos5-mdev.h | 126 ++
3 files changed, 1462 insertions(+)
create mode 100644 Documentation/devicetree/bindings/media/exynos5250-camera.txt
create mode 100644 drivers/media/platform/exynos5-is/exynos5-mdev.c
create mode 100644 drivers/media/platform/exynos5-is/exynos5-mdev.h
diff --git a/Documentation/devicetree/bindings/media/exynos5250-camera.txt b/Documentation/devicetree/bindings/media/exynos5250-camera.txt
new file mode 100644
index 0000000..09420ba
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/exynos5250-camera.txt
@@ -0,0 +1,126 @@
+Samsung EXYNOS5 SoC Camera Subsystem
+------------------------------------
+
+The Exynos5 SoC Camera subsystem comprises of multiple sub-devices
+represented by separate device tree nodes. Currently this includes: FIMC-LITE,
+MIPI CSIS and FIMC-IS.
+
+The sub-device nodes are referenced using phandles in the common 'camera' node
+which also includes common properties of the whole subsystem not really
+specific to any single sub-device, like common camera port pins or the common
+camera bus clocks.
+
+Common 'camera' node
+--------------------
+
+Required properties:
+
+- compatible : must be "samsung,exynos5250-fimc"
+- clocks : list of clock specifiers, corresponding to entries in
+ the clock-names property
+- clock-names : must contain "sclk_bayer" entry
+- samsung,csis : list of phandles to the mipi-csis device nodes
+- samsung,fimc-lite : list of phandles to the fimc-lite device nodes
+- samsung,fimc-is : phandle to the fimc-is device node
+
+The pinctrl bindings defined in ../pinctrl/pinctrl-bindings.txt must be used
+to define a required pinctrl state named "default".
+
+'parallel-ports' node
+---------------------
+
+This node should contain child 'port' nodes specifying active parallel video
+input ports. It includes camera A, camera B and RGB bay inputs.
+'reg' property in the port nodes specifies the input type:
+ 1 - parallel camport A
+ 2 - parallel camport B
+ 5 - RGB camera bay
+
+3, 4 are for MIPI CSI-2 bus and are already described in samsung-mipi-csis.txt
+
+Image sensor nodes
+------------------
+
+The sensor device nodes should be added to their control bus controller (e.g.
+I2C0) nodes and linked to a port node in the csis or the parallel-ports node,
+using the common video interfaces bindings, defined in video-interfaces.txt.
+
+Example:
+
+ aliases {
+ fimc-lite0 =&fimc_lite_0
+ };
+
+ /* Parallel bus IF sensor */
+ i2c_0: i2c@13860000 {
+ s5k6aa: sensor@3c {
+ compatible = "samsung,s5k6aafx";
+ reg =<0x3c>;
+ vddio-supply =<...>;
+
+ clock-frequency =<24000000>;
+ clocks =<...>;
+ clock-names = "mclk";
+
+ port {
+ s5k6aa_ep: endpoint {
+ remote-endpoint =<&fimc0_ep>;
+ bus-width =<8>;
+ hsync-active =<0>;
+ vsync-active =<1>;
+ pclk-sample =<1>;
+ };
+ };
+ };
+ };
+
+ /* MIPI CSI-2 bus IF sensor */
+ s5c73m3: sensor@1a {
+ compatible = "samsung,s5c73m3";
+ reg =<0x1a>;
+ vddio-supply =<...>;
+
+ clock-frequency =<24000000>;
+ clocks =<...>;
+ clock-names = "mclk";
+
+ port {
+ s5c73m3_1: endpoint {
+ data-lanes =<1 2 3 4>;
+ remote-endpoint =<&csis0_ep>;
+ };
+ };
+ };
+
+ camera {
+ compatible = "samsung,exynos5250-fimc";
+ #address-cells =<1>;
+ #size-cells =<1>;
+ status = "okay";
+
+ pinctrl-names = "default";
+ pinctrl-0 =<&cam_port_a_clk_active>;
+
+ samsung,csis =<&csis_0>,<&csis_1>;
+ samsung,fimc-lite =<&fimc_lite_0>,<&fimc_lite_1>,<&fimc_lite_2>;
+ samsung,fimc-is =<&fimc_is>;
+
+ /* parallel camera ports */
+ parallel-ports {
+ /* camera A input */
+ port@1 {
+ reg =<1>;
+ camport_a_ep: endpoint {
+ remote-endpoint =<&s5k6aa_ep>;
+ bus-width =<8>;
+ hsync-active =<0>;
+ vsync-active =<1>;
+ pclk-sample =<1>;
+ };
+ };
+ };
+ };
+
+MIPI-CSIS device binding is defined in samsung-mipi-csis.txt, FIMC-LITE
+device binding is defined in exynos-fimc-lite.txt and FIMC-IS binding
+is defined in exynos5-fimc-is.txt.
Does this binding look OK, can I have a DT maintainer Ack for that ?
--
Thanks,
Sylwester
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