From: Philipp Zabel <p.za...@pengutronix.de>

This patch adds the device tree graph connecting the input multiplexers
to the IPU CSIs and the MIPI-CSI2 gasket on i.MX6.

On i.MX6Q/D two two-input multiplexers in front of IPU1 CSI0 and IPU2 CSI1
allow to select between CSI0/1 parallel input pads and the MIPI CSI-2 virtual
channels 0/3.

On i.MX6DL/S two five-input multiplexers in front of IPU1 CSI0 and IPU1 CSI1
allow to select between CSI0/1 parallel input pads and any of the four MIPI
CSI-2 virtual channels.

Signed-off-by: Philipp Zabel <p.za...@pengutronix.de>
Signed-off-by: Steve Longerbeam <steve_longerb...@mentor.com>
---
 arch/arm/boot/dts/imx6dl.dtsi  | 183 +++++++++++++++++++++++++++++++++++++++++
 arch/arm/boot/dts/imx6q.dtsi   | 120 +++++++++++++++++++++++++++
 arch/arm/boot/dts/imx6qdl.dtsi |   6 ++
 3 files changed, 309 insertions(+)

diff --git a/arch/arm/boot/dts/imx6dl.dtsi b/arch/arm/boot/dts/imx6dl.dtsi
index 9a4c22c..8813df3 100644
--- a/arch/arm/boot/dts/imx6dl.dtsi
+++ b/arch/arm/boot/dts/imx6dl.dtsi
@@ -109,6 +109,118 @@
                compatible = "fsl,imx-gpu-subsystem";
                cores = <&gpu_2d>, <&gpu_3d>;
        };
+
+       ipu1_csi0_mux: videomux@0 {
+               compatible = "imx-video-mux";
+               reg = <0x34 0x07>;
+               gpr = <&gpr>;
+               #address-cells = <1>;
+               #size-cells = <0>;
+               status = "disabled";
+
+               port@0 {
+                       reg = <0>;
+
+                       ipu1_csi0_mux_from_mipi_vc0: endpoint {
+                               remote-endpoint = <&mipi_vc0_to_ipu1_csi0_mux>;
+                       };
+               };
+
+               port@1 {
+                       reg = <1>;
+
+                       ipu1_csi0_mux_from_mipi_vc1: endpoint {
+                               remote-endpoint = <&mipi_vc1_to_ipu1_csi0_mux>;
+                       };
+               };
+
+               port@2 {
+                       reg = <2>;
+
+                       ipu1_csi0_mux_from_mipi_vc2: endpoint {
+                               remote-endpoint = <&mipi_vc2_to_ipu1_csi0_mux>;
+                       };
+               };
+
+               port@3 {
+                       reg = <3>;
+
+                       ipu1_csi0_mux_from_mipi_vc3: endpoint {
+                               remote-endpoint = <&mipi_vc3_to_ipu1_csi0_mux>;
+                       };
+               };
+
+               port@4 {
+                       reg = <4>;
+
+                       ipu1_csi0_mux_from_parallel_sensor: endpoint {
+                       };
+               };
+
+               port@5 {
+                       reg = <5>;
+
+                       ipu1_csi0_mux_to_ipu1_csi0: endpoint {
+                               remote-endpoint = 
<&ipu1_csi0_from_ipu1_csi0_mux>;
+                       };
+               };
+       };
+
+       ipu1_csi1_mux: videomux@1 {
+               compatible = "imx-video-mux";
+               reg = <0x34 0x38>;
+               gpr = <&gpr>;
+               #address-cells = <1>;
+               #size-cells = <0>;
+               status = "disabled";
+
+               port@0 {
+                       reg = <0>;
+
+                       ipu1_csi1_mux_from_mipi_vc0: endpoint {
+                               remote-endpoint = <&mipi_vc0_to_ipu1_csi1_mux>;
+                       };
+               };
+
+               port@1 {
+                       reg = <1>;
+
+                       ipu1_csi1_mux_from_mipi_vc1: endpoint {
+                               remote-endpoint = <&mipi_vc1_to_ipu1_csi1_mux>;
+                       };
+               };
+
+               port@2 {
+                       reg = <2>;
+
+                       ipu1_csi1_mux_from_mipi_vc2: endpoint {
+                               remote-endpoint = <&mipi_vc2_to_ipu1_csi1_mux>;
+                       };
+               };
+
+               port@3 {
+                       reg = <3>;
+
+                       ipu1_csi1_mux_from_mipi_vc3: endpoint {
+                               remote-endpoint = <&mipi_vc3_to_ipu1_csi1_mux>;
+                       };
+               };
+
+               port@4 {
+                       reg = <4>;
+
+                       ipu1_csi1_mux_from_parallel_sensor: endpoint {
+                       };
+               };
+
+               port@5 {
+                       reg = <5>;
+
+                       ipu1_csi1_mux_to_ipu1_csi1: endpoint {
+                               remote-endpoint = 
<&ipu1_csi1_from_ipu1_csi1_mux>;
+                       };
+               };
+       };
 };
 
 &gpt {
@@ -131,3 +243,74 @@
 &vpu {
        compatible = "fsl,imx6dl-vpu", "cnm,coda960";
 };
+
+&ipu1_csi1 {
+       ipu1_csi1_from_ipu1_csi1_mux: endpoint {
+               remote-endpoint = <&ipu1_csi1_mux_to_ipu1_csi1>;
+       };
+};
+
+&mipi_csi {
+       port@0 {
+               reg = <0>;
+
+               mipi_csi_from_mipi_sensor: endpoint {
+               };
+       };
+
+       port@1 {
+               reg = <1>;
+               #address-cells = <1>;
+               #size-cells = <0>;
+
+               mipi_vc0_to_ipu1_csi0_mux: endpoint@0 {
+                       remote-endpoint = <&ipu1_csi0_mux_from_mipi_vc0>;
+               };
+
+               mipi_vc0_to_ipu1_csi1_mux: endpoint@1 {
+                       remote-endpoint = <&ipu1_csi1_mux_from_mipi_vc0>;
+               };
+       };
+
+       port@2 {
+               reg = <2>;
+               #address-cells = <1>;
+               #size-cells = <0>;
+
+               mipi_vc1_to_ipu1_csi0_mux: endpoint@0 {
+                       remote-endpoint = <&ipu1_csi0_mux_from_mipi_vc1>;
+               };
+
+               mipi_vc1_to_ipu1_csi1_mux: endpoint@1 {
+                       remote-endpoint = <&ipu1_csi1_mux_from_mipi_vc1>;
+               };
+       };
+
+       port@3 {
+               reg = <3>;
+               #address-cells = <1>;
+               #size-cells = <0>;
+
+               mipi_vc2_to_ipu1_csi0_mux: endpoint@0 {
+                       remote-endpoint = <&ipu1_csi0_mux_from_mipi_vc2>;
+               };
+
+               mipi_vc2_to_ipu1_csi1_mux: endpoint@1 {
+                       remote-endpoint = <&ipu1_csi1_mux_from_mipi_vc2>;
+               };
+       };
+
+       port@4 {
+               reg = <4>;
+               #address-cells = <1>;
+               #size-cells = <0>;
+
+               mipi_vc3_to_ipu1_csi0_mux: endpoint@0 {
+                       remote-endpoint = <&ipu1_csi0_mux_from_mipi_vc3>;
+               };
+
+               mipi_vc3_to_ipu1_csi1_mux: endpoint@1 {
+                       remote-endpoint = <&ipu1_csi1_mux_from_mipi_vc3>;
+               };
+       };
+};
diff --git a/arch/arm/boot/dts/imx6q.dtsi b/arch/arm/boot/dts/imx6q.dtsi
index c30c836..a487658 100644
--- a/arch/arm/boot/dts/imx6q.dtsi
+++ b/arch/arm/boot/dts/imx6q.dtsi
@@ -143,10 +143,18 @@
 
                        ipu2_csi0: port@0 {
                                reg = <0>;
+
+                               ipu2_csi0_from_mipi_vc2: endpoint {
+                                       remote-endpoint = 
<&mipi_vc2_to_ipu2_csi0>;
+                               };
                        };
 
                        ipu2_csi1: port@1 {
                                reg = <1>;
+
+                               ipu2_csi1_from_ipu2_csi1_mux: endpoint {
+                                       remote-endpoint = 
<&ipu2_csi1_mux_to_ipu2_csi1>;
+                               };
                        };
 
                        ipu2_di0: port@2 {
@@ -207,6 +215,71 @@
                compatible = "fsl,imx-gpu-subsystem";
                cores = <&gpu_2d>, <&gpu_3d>, <&gpu_vg>;
        };
+
+
+       ipu1_csi0_mux: videomux@0 {
+               compatible = "imx-video-mux";
+               reg = <0x04 0x80000>;
+               gpr = <&gpr>;
+               #address-cells = <1>;
+               #size-cells = <0>;
+               status = "disabled";
+
+               port@0 {
+                       reg = <0>;
+
+                       ipu1_csi0_mux_from_mipi_vc0: endpoint {
+                               remote-endpoint = <&mipi_vc0_to_ipu1_csi0_mux>;
+                       };
+               };
+
+               port@1 {
+                       reg = <1>;
+
+                       ipu1_csi0_mux_from_parallel_sensor: endpoint {
+                       };
+               };
+
+               port@2 {
+                       reg = <2>;
+
+                       ipu1_csi0_mux_to_ipu1_csi0: endpoint {
+                               remote-endpoint = 
<&ipu1_csi0_from_ipu1_csi0_mux>;
+                       };
+               };
+       };
+
+       ipu2_csi1_mux: videomux@1 {
+               compatible = "imx-video-mux";
+               reg = <0x04 0x100000>;
+               gpr = <&gpr>;
+               #address-cells = <1>;
+               #size-cells = <0>;
+               status = "disabled";
+
+               port@0 {
+                       reg = <0>;
+
+                       ipu2_csi1_mux_from_mipi_vc3: endpoint {
+                               remote-endpoint = <&mipi_vc3_to_ipu2_csi1_mux>;
+                       };
+               };
+
+               port@1 {
+                       reg = <1>;
+
+                       ipu2_csi1_mux_from_parallel_sensor: endpoint {
+                       };
+               };
+
+               port@2 {
+                       reg = <2>;
+
+                       ipu2_csi1_mux_to_ipu2_csi1: endpoint {
+                               remote-endpoint = 
<&ipu2_csi1_from_ipu2_csi1_mux>;
+                       };
+               };
+       };
 };
 
 &hdmi {
@@ -229,6 +302,12 @@
        };
 };
 
+&ipu1_csi1 {
+       ipu1_csi1_from_mipi_vc1: endpoint {
+               remote-endpoint = <&mipi_vc1_to_ipu1_csi1>;
+       };
+};
+
 &ldb {
        clocks = <&clks IMX6QDL_CLK_LDB_DI0_SEL>, <&clks 
IMX6QDL_CLK_LDB_DI1_SEL>,
                 <&clks IMX6QDL_CLK_IPU1_DI0_SEL>, <&clks 
IMX6QDL_CLK_IPU1_DI1_SEL>,
@@ -275,6 +354,47 @@
        };
 };
 
+&mipi_csi {
+       port@0 {
+               reg = <0>;
+
+               mipi_csi_from_mipi_sensor: endpoint {
+               };
+       };
+
+       port@1 {
+               reg = <1>;
+
+               mipi_vc0_to_ipu1_csi0_mux: endpoint {
+                       remote-endpoint = <&ipu1_csi0_mux_from_mipi_vc0>;
+               };
+       };
+
+       port@2 {
+               reg = <2>;
+
+               mipi_vc1_to_ipu1_csi1: endpoint {
+                       remote-endpoint = <&ipu1_csi1_from_mipi_vc1>;
+               };
+       };
+
+       port@3 {
+               reg = <3>;
+
+               mipi_vc2_to_ipu2_csi0: endpoint {
+                       remote-endpoint = <&ipu2_csi0_from_mipi_vc2>;
+               };
+       };
+
+       port@4 {
+               reg = <4>;
+
+               mipi_vc3_to_ipu2_csi1_mux: endpoint {
+                       remote-endpoint = <&ipu2_csi1_mux_from_mipi_vc3>;
+               };
+       };
+};
+
 &mipi_dsi {
        ports {
                port@2 {
diff --git a/arch/arm/boot/dts/imx6qdl.dtsi b/arch/arm/boot/dts/imx6qdl.dtsi
index 50499eb..838d1d5 100644
--- a/arch/arm/boot/dts/imx6qdl.dtsi
+++ b/arch/arm/boot/dts/imx6qdl.dtsi
@@ -1121,6 +1121,8 @@
                        mipi_csi: mipi@021dc000 {
                                compatible = "fsl,imx-mipi-csi2";
                                reg = <0x021dc000 0x4000>;
+                               #address-cells = <1>;
+                               #size-cells = <0>;
                                interrupts = <0 100 0x04>, <0 101 0x04>;
                                clocks = <&clks IMX6QDL_CLK_HSI_TX>,
                                         <&clks IMX6QDL_CLK_VIDEO_27M>,
@@ -1226,6 +1228,10 @@
 
                        ipu1_csi0: port@0 {
                                reg = <0>;
+
+                               ipu1_csi0_from_ipu1_csi0_mux: endpoint {
+                                       remote-endpoint = 
<&ipu1_csi0_mux_to_ipu1_csi0>;
+                               };
                        };
 
                        ipu1_csi1: port@1 {
-- 
1.9.1

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