Re: [PATCH v2 14/22] dt-bindings: media: camss: Add qcom,msm8996-camss binding
From: Rob Herring <robh@kernel.org>
Date: 2021-01-22 16:46:24
Also in:
linux-arm-msm, linux-devicetree, linux-media, lkml
On Wed, Jan 20, 2021 at 02:43:49PM +0100, Robert Foss wrote:
quoted hunk ↗ jump to hunk
Add bindings for qcom,msm8996-camss in order to support the camera subsystem on MSM8996. Signed-off-by: Robert Foss <redacted> --- Changes since v1: - Laurent: Reworked driver to use dtschema .../bindings/media/qcom,msm8996-camss.yaml | 418 ++++++++++++++++++ 1 file changed, 418 insertions(+) create mode 100644 Documentation/devicetree/bindings/media/qcom,msm8996-camss.yamldiff --git a/Documentation/devicetree/bindings/media/qcom,msm8996-camss.yaml b/Documentation/devicetree/bindings/media/qcom,msm8996-camss.yaml new file mode 100644 index 000000000000..5ca0be8892ab --- /dev/null +++ b/Documentation/devicetree/bindings/media/qcom,msm8996-camss.yaml@@ -0,0 +1,418 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) + +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/media/qcom,msm8996-camss.yaml#" +$schema: "http://devicetree.org/meta-schemas/core.yaml#" + +title: Qualcomm CAMSS ISP + +maintainers: + - Robert Foss <robert.foss@linaro.org> + - Todor Tomov <todor.too@gmail.com> + +description: | + The CAMSS IP is a CSI decoder and ISP present on Qualcomm platforms + +properties: + compatible: + const: qcom,msm8996-camss + + clocks: + description: + Input clocks for the hardware block.
That's every 'clocks' entry. Drop.
+ minItems: 36 + maxItems: 36 + + clock-names: + description: + Names of input clocks for the hardware block.
ditto.
+ items: + - const: top_ahb + - const: ispif_ahb + - const: csiphy0_timer + - const: csiphy1_timer + - const: csiphy2_timer + - const: csi0_ahb + - const: csi0 + - const: csi0_phy + - const: csi0_pix + - const: csi0_rdi + - const: csi1_ahb + - const: csi1 + - const: csi1_phy + - const: csi1_pix + - const: csi1_rdi + - const: csi2_ahb + - const: csi2 + - const: csi2_phy + - const: csi2_pix + - const: csi2_rdi + - const: csi3_ahb + - const: csi3 + - const: csi3_phy + - const: csi3_pix + - const: csi3_rdi + - const: ahb + - const: vfe0 + - const: csi_vfe0 + - const: vfe0_ahb + - const: vfe0_stream + - const: vfe1 + - const: csi_vfe1 + - const: vfe1_ahb + - const: vfe1_stream + - const: vfe_ahb + - const: vfe_axi + + interrupts: + description: + IRQs for the hardware block.
ditto
+ minItems: 10 + maxItems: 10 + + interrupt-names: + description: + Names of IRQs for the hardware block. + items: + - const: csiphy0 + - const: csiphy1 + - const: csiphy2 + - const: csid0 + - const: csid1 + - const: csid2 + - const: csid3 + - const: ispif + - const: vfe0 + - const: vfe1 + + iommus: + maxItems: 4 + + power-domains: + maxItems: 2
Need to define what each one is. items: - description: ... - description: ...
+ + ports:
This needs to reference graph.yaml#/properties/ports See recent additions in -next.
+ description: + The CSI data input ports. + + type: object + + properties: + port@0:
There's a pending video-interfaces.yaml conversion which this is going to need to use[1].
+ type: object + description: Input node for receiving CSI data. + properties: + endpoint: + type: object + + properties: + clock-lanes: + description: |- + The physical clock lane index. The value must + always be <7> as the hardware supports D-PHY + and C-PHY, indexes are in a common set and + D-PHY physical clock lane is labeled as 7.
You don't need this in DT if it can only be 1 value.
+ + data-lanes: + description: |- + An array of physical data lanes indexes. + Position of an entry determines the logical + lane number, while the value of an entry + indicates physical lane index. Lane swapping + is supported. Physical lane indexes are: + 0, 1, 2, 3
No need to redescribe this here. Just any additional constraints. 'maxItems: 4' at least since the base allows 8. Rob [1] https://lore.kernel.org/linux-devicetree/20210104165808.2166686-1-robh@kernel.org/ (local) _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel