From: Pratyush Yadav <p.yadav@xxxxxx> TI's J721E uses the Cadence CSI2RX and DPHY peripherals to facilitate capture over a CSI-2 bus. The TI CSI2RX platform driver glues all the parts together. Signed-off-by: Pratyush Yadav <p.yadav@xxxxxx> Signed-off-by: Jai Luthra <j-luthra@xxxxxx> Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> Reviewed-by: Rob Herring <robh@xxxxxxxxxx> --- v7->v8: - Drop "Device Tree Bindings" from title - Rename "Wrapper" to "Shim" in title as that is the name referred in the TRM and other places - Update maintainer to myself - Drop items from compatible as only a single element is present - Rename compatible to "ti,j721e-csi2rx-shim" to distinguish from the SoC-specific CSI2RX bridge compatible .../bindings/media/ti,j721e-csi2rx-shim.yaml | 100 +++++++++++++++++++++ 1 file changed, 100 insertions(+) diff --git a/Documentation/devicetree/bindings/media/ti,j721e-csi2rx-shim.yaml b/Documentation/devicetree/bindings/media/ti,j721e-csi2rx-shim.yaml new file mode 100644 index 000000000000..f762fdc05e4d --- /dev/null +++ b/Documentation/devicetree/bindings/media/ti,j721e-csi2rx-shim.yaml @@ -0,0 +1,100 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/media/ti,j721e-csi2rx-shim.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: TI J721E CSI2RX Shim + +description: | + The TI J721E CSI2RX Shim is a wrapper around Cadence CSI2RX bridge that + enables sending captured frames to memory over PSI-L DMA. In the J721E + Technical Reference Manual (SPRUIL1B) it is referred to as "SHIM" under the + CSI_RX_IF section. + +maintainers: + - Jai Luthra <j-luthra@xxxxxx> + +properties: + compatible: + const: ti,j721e-csi2rx-shim + + dmas: + maxItems: 1 + + dma-names: + items: + - const: rx0 + + reg: + maxItems: 1 + + power-domains: + maxItems: 1 + + ranges: true + + "#address-cells": true + + "#size-cells": true + +patternProperties: + "^csi-bridge@": + type: object + description: CSI2 bridge node. + $ref: cdns,csi2rx.yaml# + +required: + - compatible + - reg + - dmas + - dma-names + - power-domains + - ranges + - "#address-cells" + - "#size-cells" + +additionalProperties: false + +examples: + - | + #include <dt-bindings/soc/ti,sci_pm_domain.h> + + ti_csi2rx0: ticsi2rx@4500000 { + compatible = "ti,j721e-csi2rx-shim"; + dmas = <&main_udmap 0x4940>; + dma-names = "rx0"; + reg = <0x4500000 0x1000>; + power-domains = <&k3_pds 26 TI_SCI_PD_EXCLUSIVE>; + #address-cells = <1>; + #size-cells = <1>; + ranges; + + cdns_csi2rx: csi-bridge@4504000 { + compatible = "ti,j721e-csi2rx", "cdns,csi2rx"; + reg = <0x4504000 0x1000>; + clocks = <&k3_clks 26 2>, <&k3_clks 26 0>, <&k3_clks 26 2>, + <&k3_clks 26 2>, <&k3_clks 26 3>, <&k3_clks 26 3>; + clock-names = "sys_clk", "p_clk", "pixel_if0_clk", + "pixel_if1_clk", "pixel_if2_clk", "pixel_if3_clk"; + phys = <&dphy0>; + phy-names = "dphy"; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + csi2_0: port@0 { + + reg = <0>; + + csi2rx0_in_sensor: endpoint { + remote-endpoint = <&csi2_cam0>; + bus-type = <4>; /* CSI2 DPHY. */ + clock-lanes = <0>; + data-lanes = <1 2>; + }; + }; + }; + }; + }; -- 2.41.0
