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Message-ID: <edcdb19f-619b-4dc8-b3d2-8d54c9594aeb@kernel.org>
Date: Thu, 16 Oct 2025 11:43:23 +0100
From: Bryan O'Donoghue <bod@...nel.org>
To: Wenmeng Liu <wenmeng.liu@....qualcomm.com>, Robert Foss
<rfoss@...nel.org>, Todor Tomov <todor.too@...il.com>,
Vladimir Zapolskiy <vladimir.zapolskiy@...aro.org>,
Mauro Carvalho Chehab <mchehab@...nel.org>, Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
<conor+dt@...nel.org>, Bjorn Andersson <andersson@...nel.org>,
Konrad Dybcio <konradybcio@...nel.org>
Cc: linux-media@...r.kernel.org, linux-arm-msm@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] media: dt-bindings: Add qcom,sm6150-camss
On 16/10/2025 11:22, Wenmeng Liu wrote:
> Add bindings for qcom,sm6150-camss in order to support the camera
> subsystem found in Qualcomm Talos EVK board.
Understood you are doing this to support the Talos EVK but the yaml
should describe the specific SoC.
>
> Signed-off-by: Wenmeng Liu <wenmeng.liu@....qualcomm.com>
> ---
> .../bindings/media/qcom,sm6150-camss.yaml | 283 +++++++++++++++++++++
> 1 file changed, 283 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/media/qcom,sm6150-camss.yaml b/Documentation/devicetree/bindings/media/qcom,sm6150-camss.yaml
> new file mode 100644
> index 0000000000000000000000000000000000000000..758bed0970f2ceee7df30b579a0f60d583a9230c
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/qcom,sm6150-camss.yaml
> @@ -0,0 +1,283 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/media/qcom,sm6150-camss.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm SM6150 Camera Subsystem (CAMSS)
> +
> +maintainers:
> + - Wenmeng Liu <wenmeng.liu@....qualcomm.com>
> +
> +description:
> + The CAMSS IP is a CSI decoder and ISP present on Qualcomm platforms.
> +
> +properties:
> + compatible:
> + const: qcom,sm6150-camss
> +
> + reg:
> + maxItems: 9
> +
> + reg-names:
> + items:
> + - const: csid0
> + - const: csid1
> + - const: csid_lite
> + - const: csiphy0
> + - const: csiphy1
> + - const: csiphy2
> + - const: vfe0
> + - const: vfe1
> + - const: vfe_lite
> +
> + clocks:
> + maxItems: 21
> +
> + clock-names:
> + items:
> + - const: camnoc_axi
> + - const: cpas_ahb
> + - const: csiphy0
> + - const: csiphy0_timer
> + - const: csiphy1
> + - const: csiphy1_timer
> + - const: csiphy2
> + - const: csiphy2_timer
> + - const: gcc_axi_hf
> + - const: soc_ahb
> + - const: vfe0
> + - const: vfe0_axi
> + - const: vfe0_cphy_rx
> + - const: vfe0_csid
> + - const: vfe1
> + - const: vfe1_axi
> + - const: vfe1_cphy_rx
> + - const: vfe1_csid
> + - const: vfe_lite
> + - const: vfe_lite_cphy_rx
> + - const: vfe_lite_csid
> +
> + interrupts:
> + maxItems: 9
> +
> + interrupt-names:
> + items:
> + - const: csid0
> + - const: csid1
> + - const: csid_lite
> + - const: csiphy0
> + - const: csiphy1
> + - const: csiphy2
> + - const: vfe0
> + - const: vfe1
> + - const: vfe_lite
> +
> + interconnects:
> + maxItems: 2
> +
> + interconnect-names:
> + items:
> + - const: ahb
> + - const: hf_mnoc
> +
> + iommus:
> + maxItems: 1
> +
> + power-domains:
> + items:
> + - description: IFE0 GDSC - Image Front End, Global Distributed Switch Controller.
> + - description: IFE1 GDSC - Image Front End, Global Distributed Switch Controller.
> + - description: Titan GDSC - Titan ISP Block, Global Distributed Switch Controller.
> +
> + power-domain-names:
> + items:
> + - const: ife0
> + - const: ife1
> + - const: top
> +
> + vdd-csiphy-1p2-supply:
> + description:
> + Phandle to a 1.2V regulator supply to CSI PHYs.
> +
> + vdd-csiphy-1p8-supply:
> + description:
> + Phandle to 1.8V regulator supply to CSI PHYs pll block.
> +
> + ports:
> + $ref: /schemas/graph.yaml#/properties/ports
> +
> + description:
> + CSI input ports.
> +
> + patternProperties:
> + "^port@[0-2]+$":
> + $ref: /schemas/graph.yaml#/$defs/port-base
> + unevaluatedProperties: false
> +
> + description:
> + Input port for receiving CSI data from a CSIPHY.
> +
> + properties:
> + endpoint:
> + $ref: video-interfaces.yaml#
> + unevaluatedProperties: false
> +
> + properties:
> + data-lanes:
> + minItems: 1
> + maxItems: 4
> +
> + required:
> + - data-lanes
> +
> +required:
> + - compatible
> + - reg
> + - reg-names
> + - clocks
> + - clock-names
> + - interrupts
> + - interrupt-names
> + - interconnects
> + - interconnect-names
> + - iommus
> + - power-domains
> + - power-domain-names
> + - vdd-csiphy-1p2-supply
> + - vdd-csiphy-1p8-supply
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/clock/qcom,rpmh.h>
> + #include <dt-bindings/clock/qcom,qcs615-camcc.h>
> + #include <dt-bindings/clock/qcom,qcs615-gcc.h>
rpmh should come after qcs615.
> + #include <dt-bindings/interconnect/qcom,icc.h>
> + #include <dt-bindings/interconnect/qcom,qcs615-rpmh.h>
> + #include <dt-bindings/interrupt-controller/arm-gic.h>
> + #include <dt-bindings/power/qcom-rpmpd.h>
> +
> + soc {
> + #address-cells = <2>;
> + #size-cells = <2>;
> +
> + camss: isp@...3000 {
> + compatible = "qcom,sm6150-camss";
> +
> + reg = <0x0 0x0acb3000 0x0 0x1000>,
> + <0x0 0x0acba000 0x0 0x1000>,
> + <0x0 0x0acc8000 0x0 0x1000>,
> + <0x0 0x0ac65000 0x0 0x1000>,
> + <0x0 0x0ac66000 0x0 0x1000>,
> + <0x0 0x0ac67000 0x0 0x1000>,
> + <0x0 0x0acaf000 0x0 0x4000>,
> + <0x0 0x0acb6000 0x0 0x4000>,
> + <0x0 0x0acc4000 0x0 0x4000>;
> + reg-names = "csid0",
> + "csid1",
> + "csid_lite",
> + "csiphy0",
> + "csiphy1",
> + "csiphy2",
> + "vfe0",
> + "vfe1",
> + "vfe_lite";
> +
> + clocks = <&camcc CAM_CC_CAMNOC_AXI_CLK>,
> + <&camcc CAM_CC_CPAS_AHB_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>,
> + <&gcc GCC_CAMERA_HF_AXI_CLK>,
> + <&camcc CAM_CC_SOC_AHB_CLK>,
> + <&camcc CAM_CC_IFE_0_CLK>,
> + <&camcc CAM_CC_IFE_0_AXI_CLK>,
> + <&camcc CAM_CC_IFE_0_CPHY_RX_CLK>,
> + <&camcc CAM_CC_IFE_0_CSID_CLK>,
> + <&camcc CAM_CC_IFE_1_CLK>,
> + <&camcc CAM_CC_IFE_1_AXI_CLK>,
> + <&camcc CAM_CC_IFE_1_CPHY_RX_CLK>,
> + <&camcc CAM_CC_IFE_1_CSID_CLK>,
> + <&camcc CAM_CC_IFE_LITE_CLK>,
> + <&camcc CAM_CC_IFE_LITE_CPHY_RX_CLK>,
> + <&camcc CAM_CC_IFE_LITE_CSID_CLK>;
> +
> + clock-names = "camnoc_axi",
> + "cpas_ahb",
> + "csiphy0",
> + "csiphy0_timer",
> + "csiphy1",
> + "csiphy1_timer",
> + "csiphy2",
> + "csiphy2_timer",
> + "gcc_axi_hf",
> + "soc_ahb",
> + "vfe0",
> + "vfe0_axi",
> + "vfe0_cphy_rx",
> + "vfe0_csid",
> + "vfe1",
> + "vfe1_axi",
> + "vfe1_cphy_rx",
> + "vfe1_csid",
> + "vfe_lite",
> + "vfe_lite_cphy_rx",
> + "vfe_lite_csid";
> +
> + 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_HF0 QCOM_ICC_TAG_ALWAYS
> + &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>;
> + interconnect-names = "ahb",
> + "hf_mnoc";
> +
> + interrupts = <GIC_SPI 464 IRQ_TYPE_EDGE_RISING>,
> + <GIC_SPI 466 IRQ_TYPE_EDGE_RISING>,
> + <GIC_SPI 468 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 465 IRQ_TYPE_EDGE_RISING>,
> + <GIC_SPI 467 IRQ_TYPE_EDGE_RISING>,
> + <GIC_SPI 469 IRQ_TYPE_EDGE_RISING>;
> + interrupt-names = "csid0",
> + "csid1",
> + "csid_lite",
> + "csiphy0",
> + "csiphy1",
> + "csiphy2",
> + "vfe0",
> + "vfe1",
> + "vfe_lite";
> +
> + iommus = <&apps_smmu 0x820 0x40>;
> +
> + power-domains = <&camcc IFE_0_GDSC>,
> + <&camcc IFE_1_GDSC>,
> + <&camcc TITAN_TOP_GDSC>;
> + power-domain-names = "ife0",
> + "ife1",
> + "top";
> +
> + vdd-csiphy-1p2-supply = <&vreg_l11a_1p2>;
> + vdd-csiphy-1p8-supply = <&vreg_l12a_1p8>;
> +
> + ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + port@0 {
> + reg = <0>;
> + csiphy_ep0: endpoint {
> + data-lanes = <0 1>;
> + remote-endpoint = <&sensor_ep>;
> + };
> + };
> + };
> + };
> + };
>
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