Re: [PATCH v8 02/18] dt-bindings: media: qcom,x1e80100-camss: Convert from inline PHY definitions to PHY handles

[Christopher Obbard <christopher.obbard@linaro.org>]

Hi Bryan,

On Wed, 2026-02-25 at 15:11 +0000, Bryan O'Donoghue wrote:
> We currently do not have an upstream user of the x1e CAMSS schema which
> allows us to make this the first platform to treat the CSI PHYs as separate
> devices in much the same way as we treat the CCI block as separate devices.
> 
> Convert the embedded CSIPHY node data to simple phys = <> removing all of
> the PHY specific stuff previously embedded.
> 
> I gave some serious thought to making the Test Pattern Generators TPGs into
> PHY nodes also but, unlike the CSIPHYs the TPGs have no dedicated external
> pins nor regulators.
> 
> The CSIPHYs OTOH have dedicated in-fact generally unmuxed pins on Qualcomm
> SoCs and each CSIPHY has its own set of input power rails usually 0p8 and
> 1p2.
> 
> Instead of defining the CSIPHYs as children of the CAMSS block, we take the
> same approach as the CCI/I2C bus dedicated to CAMSS and define the CSIPHYs
> as their own nodes.
> 
> Remove the embedded CSIPHY specific data and give CAMSS regular,
> bog-standard phys = <>;
> 
> Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>

Reviewed-by: Christopher Obbard <christopher.obbard@linaro.org>

> ---
>  .../bindings/media/qcom,x1e80100-camss.yaml        | 84 ++++++----------------
>  1 file changed, 20 insertions(+), 64 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/media/qcom,x1e80100-camss.yaml b/Documentation/devicetree/bindings/media/qcom,x1e80100-camss.yaml
> index 9aaed897f7e0e..ff14a8248321e 100644
> --- a/Documentation/devicetree/bindings/media/qcom,x1e80100-camss.yaml
> +++ b/Documentation/devicetree/bindings/media/qcom,x1e80100-camss.yaml
> @@ -17,7 +17,7 @@ properties:
>      const: qcom,x1e80100-camss
>  
>    reg:
> -    maxItems: 17
> +    maxItems: 13
>  
>    reg-names:
>      items:
> @@ -27,10 +27,6 @@ properties:
>        - const: csid2
>        - const: csid_lite0
>        - const: csid_lite1
> -      - const: csiphy0
> -      - const: csiphy1
> -      - const: csiphy2
> -      - const: csiphy4
>        - const: csitpg0
>        - const: csitpg1
>        - const: csitpg2
> @@ -40,7 +36,7 @@ properties:
>        - const: vfe_lite1
>  
>    clocks:
> -    maxItems: 29
> +    maxItems: 21
>  
>    clock-names:
>      items:
> @@ -55,14 +51,6 @@ properties:
>        - const: cphy_rx_clk_src
>        - const: csid
>        - const: csid_csiphy_rx
> -      - const: csiphy0
> -      - const: csiphy0_timer
> -      - const: csiphy1
> -      - const: csiphy1_timer
> -      - const: csiphy2
> -      - const: csiphy2_timer
> -      - const: csiphy4
> -      - const: csiphy4_timer
>        - const: gcc_axi_hf
>        - const: gcc_axi_sf
>        - const: vfe0
> @@ -75,7 +63,7 @@ properties:
>        - const: vfe_lite_csid
>  
>    interrupts:
> -    maxItems: 13
> +    maxItems: 9
>  
>    interrupt-names:
>      items:
> @@ -84,15 +72,21 @@ properties:
>        - const: csid2
>        - const: csid_lite0
>        - const: csid_lite1
> -      - const: csiphy0
> -      - const: csiphy1
> -      - const: csiphy2
> -      - const: csiphy4
>        - const: vfe0
>        - const: vfe1
>        - const: vfe_lite0
>        - const: vfe_lite1
>  
> +  phys:
> +    maxItems: 4
> +
> +  phy-names:
> +    items:
> +      - const: csiphy0
> +      - const: csiphy1
> +      - const: csiphy2
> +      - const: csiphy4
> +
>    interconnects:
>      maxItems: 4
>  
> @@ -118,14 +112,6 @@ properties:
>        - const: ife1
>        - const: top
>  
> -  vdd-csiphy-0p8-supply:
> -    description:
> -      0.8V supply to a PHY.
> -
> -  vdd-csiphy-1p2-supply:
> -    description:
> -      1.2V supply to a PHY.
> -
>    ports:
>      $ref: /schemas/graph.yaml#/properties/ports
>  
> @@ -166,13 +152,13 @@ required:
>    - clock-names
>    - interrupts
>    - interrupt-names
> +  - phys
> +  - phy-names
>    - interconnects
>    - interconnect-names
>    - iommus
>    - power-domains
>    - power-domain-names
> -  - vdd-csiphy-0p8-supply
> -  - vdd-csiphy-1p2-supply
>    - ports
>  
>  additionalProperties: false
> @@ -199,10 +185,6 @@ examples:
>                    <0 0x0acbb000 0 0x2000>,
>                    <0 0x0acc6000 0 0x1000>,
>                    <0 0x0acca000 0 0x1000>,
> -                  <0 0x0ace4000 0 0x1000>,
> -                  <0 0x0ace6000 0 0x1000>,
> -                  <0 0x0ace8000 0 0x1000>,
> -                  <0 0x0acec000 0 0x4000>,
>                    <0 0x0acf6000 0 0x1000>,
>                    <0 0x0acf7000 0 0x1000>,
>                    <0 0x0acf8000 0 0x1000>,
> @@ -217,10 +199,6 @@ examples:
>                          "csid2",
>                          "csid_lite0",
>                          "csid_lite1",
> -                        "csiphy0",
> -                        "csiphy1",
> -                        "csiphy2",
> -                        "csiphy4",
>                          "csitpg0",
>                          "csitpg1",
>                          "csitpg2",
> @@ -240,14 +218,6 @@ examples:
>                       <&camcc CAM_CC_CPHY_RX_CLK_SRC>,
>                       <&camcc CAM_CC_CSID_CLK>,
>                       <&camcc CAM_CC_CSID_CSIPHY_RX_CLK>,
> -                     <&camcc CAM_CC_CSIPHY0_CLK>,
> -                     <&camcc CAM_CC_CSI0PHYTIMER_CLK>,
> -                     <&camcc CAM_CC_CSIPHY1_CLK>,
> -                     <&camcc CAM_CC_CSI1PHYTIMER_CLK>,
> -                     <&camcc CAM_CC_CSIPHY2_CLK>,
> -                     <&camcc CAM_CC_CSI2PHYTIMER_CLK>,
> -                     <&camcc CAM_CC_CSIPHY4_CLK>,
> -                     <&camcc CAM_CC_CSI4PHYTIMER_CLK>,
>                       <&gcc GCC_CAMERA_HF_AXI_CLK>,
>                       <&gcc GCC_CAMERA_SF_AXI_CLK>,
>                       <&camcc CAM_CC_IFE_0_CLK>,
> @@ -270,14 +240,6 @@ examples:
>                            "cphy_rx_clk_src",
>                            "csid",
>                            "csid_csiphy_rx",
> -                          "csiphy0",
> -                          "csiphy0_timer",
> -                          "csiphy1",
> -                          "csiphy1_timer",
> -                          "csiphy2",
> -                          "csiphy2_timer",
> -                          "csiphy4",
> -                          "csiphy4_timer",
>                            "gcc_axi_hf",
>                            "gcc_axi_sf",
>                            "vfe0",
> @@ -294,10 +256,6 @@ examples:
>                          <GIC_SPI 431 IRQ_TYPE_EDGE_RISING>,
>                          <GIC_SPI 468 IRQ_TYPE_EDGE_RISING>,
>                          <GIC_SPI 359 IRQ_TYPE_EDGE_RISING>,
> -                        <GIC_SPI 477 IRQ_TYPE_EDGE_RISING>,
> -                        <GIC_SPI 478 IRQ_TYPE_EDGE_RISING>,
> -                        <GIC_SPI 479 IRQ_TYPE_EDGE_RISING>,
> -                        <GIC_SPI 122 IRQ_TYPE_EDGE_RISING>,
>                          <GIC_SPI 465 IRQ_TYPE_EDGE_RISING>,
>                          <GIC_SPI 467 IRQ_TYPE_EDGE_RISING>,
>                          <GIC_SPI 469 IRQ_TYPE_EDGE_RISING>,
> @@ -308,15 +266,16 @@ examples:
>                                "csid2",
>                                "csid_lite0",
>                                "csid_lite1",
> -                              "csiphy0",
> -                              "csiphy1",
> -                              "csiphy2",
> -                              "csiphy4",
>                                "vfe0",
>                                "vfe1",
>                                "vfe_lite0",
>                                "vfe_lite1";
>  
> +            phys = <&csiphy0>, <&csiphy1>,
> +                   <&csiphy2>, <&csiphy4>;
> +            phy-names = "csiphy0", "csiphy1",
> +                        "csiphy2", "csiphy4";
> +
>              interconnects = <&gem_noc MASTER_APPSS_PROC QCOM_ICC_TAG_ACTIVE_ONLY
>                               &config_noc SLAVE_CAMERA_CFG QCOM_ICC_TAG_ACTIVE_ONLY>,
>                              <&mmss_noc MASTER_CAMNOC_HF QCOM_ICC_TAG_ALWAYS
> @@ -348,9 +307,6 @@ examples:
>                                   "ife1",
>                                   "top";
>  
> -            vdd-csiphy-0p8-supply = <&csiphy_0p8_supply>;
> -            vdd-csiphy-1p2-supply = <&csiphy_1p2_supply>;
> -
>              ports {
>                  #address-cells = <1>;
>                  #size-cells = <0>;