public inbox for devicetree@vger.kernel.org
 help / color / mirror / Atom feed
From: Bryan O'Donoghue <bod@kernel.org>
To: Luca Weiss <luca.weiss@fairphone.com>,
	Robert Foss <rfoss@kernel.org>, Todor Tomov <todor.too@gmail.com>,
	Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Bryan O'Donoghue <bryan.odonoghue@linaro.org>,
	Bjorn Andersson <andersson@kernel.org>,
	Konrad Dybcio <konradybcio@kernel.org>
Cc: ~postmarketos/upstreaming@lists.sr.ht,
	phone-devel@vger.kernel.org, linux-arm-msm@vger.kernel.org,
	linux-media@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Subject: Re: [PATCH v4 1/3] dt-bindings: media: camss: Add qcom,sm6350-camss
Date: Tue, 31 Mar 2026 09:50:36 +0100	[thread overview]
Message-ID: <07d778ce-83b8-49de-ad51-b43044e0c88c@kernel.org> (raw)
In-Reply-To: <20260216-sm6350-camss-v4-1-b9df35f87edb@fairphone.com>

On 16/02/2026 08:54, Luca Weiss wrote:
> Add bindings for the Camera Subsystem on the SM6350 SoC.
> 
> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
> Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
> ---
>   .../bindings/media/qcom,sm6350-camss.yaml          | 471 +++++++++++++++++++++
>   1 file changed, 471 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/media/qcom,sm6350-camss.yaml b/Documentation/devicetree/bindings/media/qcom,sm6350-camss.yaml
> new file mode 100644
> index 000000000000..96974d90d8c4
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/qcom,sm6350-camss.yaml
> @@ -0,0 +1,471 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/media/qcom,sm6350-camss.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm SM6350 Camera Subsystem (CAMSS)
> +
> +maintainers:
> +  - Luca Weiss <luca.weiss@fairphone.com>
> +
> +description:
> +  The CAMSS IP is a CSI decoder and ISP present on Qualcomm platforms.
> +
> +properties:
> +  compatible:
> +    const: qcom,sm6350-camss
> +
> +  reg:
> +    maxItems: 24
> +
> +  reg-names:
> +    items:
> +      - const: csid0
> +      - const: csid1
> +      - const: csid2
> +      - const: csid_lite
> +      - const: csiphy0
> +      - const: csiphy1
> +      - const: csiphy2
> +      - const: csiphy3
> +      - const: vfe0
> +      - const: vfe1
> +      - const: vfe2
> +      - const: vfe_lite
> +      - const: a5_csr
> +      - const: a5_qgic
> +      - const: a5_sierra
> +      - const: bps
> +      - const: camnoc
> +      - const: core_top_csr_tcsr
> +      - const: cpas_cdm
> +      - const: cpas_top
> +      - const: ipe
> +      - const: jpeg_dma
> +      - const: jpeg_enc
> +      - const: lrme
> +
> +  clocks:
> +    maxItems: 39
> +
> +  clock-names:
> +    items:
> +      - const: cam_axi
> +      - const: soc_ahb
> +      - const: camnoc_axi
> +      - const: core_ahb
> +      - const: cpas_ahb
> +      - const: csiphy0
> +      - const: csiphy0_timer
> +      - const: csiphy1
> +      - const: csiphy1_timer
> +      - const: csiphy2
> +      - const: csiphy2_timer
> +      - const: csiphy3
> +      - const: csiphy3_timer
> +      - const: vfe0_axi
> +      - const: vfe0
> +      - const: vfe0_cphy_rx
> +      - const: vfe0_csid
> +      - const: vfe1_axi
> +      - const: vfe1
> +      - const: vfe1_cphy_rx
> +      - const: vfe1_csid
> +      - const: vfe2_axi
> +      - const: vfe2
> +      - const: vfe2_cphy_rx
> +      - const: vfe2_csid
> +      - const: vfe_lite
> +      - const: vfe_lite_cphy_rx
> +      - const: vfe_lite_csid
> +      - const: bps
> +      - const: bps_ahb
> +      - const: bps_areg
> +      - const: bps_axi
> +      - const: icp
> +      - const: ipe0
> +      - const: ipe0_ahb
> +      - const: ipe0_areg
> +      - const: ipe0_axi
> +      - const: jpeg
> +      - const: lrme
> +
> +  interrupts:
> +    maxItems: 18
> +
> +  interrupt-names:
> +    items:
> +      - const: csid0
> +      - const: csid1
> +      - const: csid2
> +      - const: csid_lite
> +      - const: csiphy0
> +      - const: csiphy1
> +      - const: csiphy2
> +      - const: csiphy3
> +      - const: vfe0
> +      - const: vfe1
> +      - const: vfe2
> +      - const: vfe_lite
> +      - const: a5
> +      - const: cpas
> +      - const: cpas_cdm
> +      - const: jpeg_dma
> +      - const: jpeg_enc
> +      - const: lrme
> +
> +  interconnects:
> +    maxItems: 4
> +
> +  interconnect-names:
> +    items:
> +      - const: ahb
> +      - const: hf_mnoc
> +      - const: sf_mnoc
> +      - const: sf_icp_mnoc
> +
> +  iommus:
> +    maxItems: 14
> +
> +  power-domains:
> +    maxItems: 6
> +
> +  power-domain-names:
> +    items:
> +      - const: ife0
> +      - const: ife1
> +      - const: ife2
> +      - const: top
> +      - const: bps
> +      - const: ipe
> +
> +  vdd-csiphy0-0p9-supply:
> +    description:
> +      Phandle to a 0.9V regulator supply to CSIPHY0.
> +
> +  vdd-csiphy0-1p25-supply:
> +    description:
> +      Phandle to a 1.25V regulator supply to CSIPHY0.
> +
> +  vdd-csiphy1-0p9-supply:
> +    description:
> +      Phandle to a 0.9V regulator supply to CSIPHY1.
> +
> +  vdd-csiphy1-1p25-supply:
> +    description:
> +      Phandle to a 1.25V regulator supply to CSIPHY1.
> +
> +  vdd-csiphy2-0p9-supply:
> +    description:
> +      Phandle to a 0.9V regulator supply to CSIPHY2.
> +
> +  vdd-csiphy2-1p25-supply:
> +    description:
> +      Phandle to a 1.25V regulator supply to CSIPHY2.
> +
> +  vdd-csiphy3-0p9-supply:
> +    description:
> +      Phandle to a 0.9V regulator supply to CSIPHY3.
> +
> +  vdd-csiphy3-1p25-supply:
> +    description:
> +      Phandle to a 1.25V regulator supply to CSIPHY3.
> +
> +  ports:
> +    $ref: /schemas/graph.yaml#/properties/ports
> +
> +    description:
> +      CSI input ports.
> +
> +    patternProperties:
> +      "^port@[0-3]$":
> +        $ref: /schemas/graph.yaml#/$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
> +
> +              bus-type:
> +                enum:
> +                  - 1 # MEDIA_BUS_TYPE_CSI2_CPHY
> +                  - 4 # MEDIA_BUS_TYPE_CSI2_DPHY
> +
> +            required:
> +              - data-lanes
> +
> +required:
> +  - compatible
> +  - reg
> +  - reg-names
> +  - clocks
> +  - clock-names
> +  - interrupts
> +  - interrupt-names
> +  - interconnects
> +  - interconnect-names
> +  - iommus
> +  - power-domains
> +  - power-domain-names
> +  - ports
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/clock/qcom,gcc-sm6350.h>
> +    #include <dt-bindings/clock/qcom,sm6350-camcc.h>
> +    #include <dt-bindings/interconnect/qcom,icc.h>
> +    #include <dt-bindings/interconnect/qcom,sm6350.h>
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +    #include <dt-bindings/media/video-interfaces.h>
> +    #include <dt-bindings/power/qcom-rpmpd.h>
> +
> +    soc {
> +        #address-cells = <2>;
> +        #size-cells = <2>;
> +
> +        isp@acb3000 {
> +            compatible = "qcom,sm6350-camss";
> +
> +            reg = <0x0 0x0acb3000 0x0 0x1000>,
> +                  <0x0 0x0acba000 0x0 0x1000>,
> +                  <0x0 0x0acc1000 0x0 0x1000>,
> +                  <0x0 0x0acc8000 0x0 0x1000>,
> +                  <0x0 0x0ac65000 0x0 0x1000>,
> +                  <0x0 0x0ac66000 0x0 0x1000>,
> +                  <0x0 0x0ac67000 0x0 0x1000>,
> +                  <0x0 0x0ac68000 0x0 0x1000>,
> +                  <0x0 0x0acaf000 0x0 0x4000>,
> +                  <0x0 0x0acb6000 0x0 0x4000>,
> +                  <0x0 0x0acbd000 0x0 0x4000>,
> +                  <0x0 0x0acc4000 0x0 0x4000>,
> +                  <0x0 0x0ac18000 0x0 0x3000>,
> +                  <0x0 0x0ac00000 0x0 0x6000>,
> +                  <0x0 0x0ac10000 0x0 0x8000>,
> +                  <0x0 0x0ac6f000 0x0 0x8000>,
> +                  <0x0 0x0ac42000 0x0 0x4600>,
> +                  <0x0 0x01fc0000 0x0 0x40000>,
> +                  <0x0 0x0ac48000 0x0 0x1000>,
> +                  <0x0 0x0ac40000 0x0 0x1000>,
> +                  <0x0 0x0ac87000 0x0 0xa000>,
> +                  <0x0 0x0ac52000 0x0 0x4000>,
> +                  <0x0 0x0ac4e000 0x0 0x4000>,
> +                  <0x0 0x0ac6b000 0x0 0xa00>;
> +            reg-names = "csid0",
> +                        "csid1",
> +                        "csid2",
> +                        "csid_lite",
> +                        "csiphy0",
> +                        "csiphy1",
> +                        "csiphy2",
> +                        "csiphy3",
> +                        "vfe0",
> +                        "vfe1",
> +                        "vfe2",
> +                        "vfe_lite",
> +                        "a5_csr",
> +                        "a5_qgic",
> +                        "a5_sierra",
> +                        "bps",
> +                        "camnoc",
> +                        "core_top_csr_tcsr",
> +                        "cpas_cdm",
> +                        "cpas_top",
> +                        "ipe",
> +                        "jpeg_dma",
> +                        "jpeg_enc",
> +                        "lrme";
> +
> +            clocks = <&gcc GCC_CAMERA_AXI_CLK>,
> +                     <&camcc CAMCC_SOC_AHB_CLK>,
> +                     <&camcc CAMCC_CAMNOC_AXI_CLK>,
> +                     <&camcc CAMCC_CORE_AHB_CLK>,
> +                     <&camcc CAMCC_CPAS_AHB_CLK>,
> +                     <&camcc CAMCC_CSIPHY0_CLK>,
> +                     <&camcc CAMCC_CSI0PHYTIMER_CLK>,
> +                     <&camcc CAMCC_CSIPHY1_CLK>,
> +                     <&camcc CAMCC_CSI1PHYTIMER_CLK>,
> +                     <&camcc CAMCC_CSIPHY2_CLK>,
> +                     <&camcc CAMCC_CSI2PHYTIMER_CLK>,
> +                     <&camcc CAMCC_CSIPHY3_CLK>,
> +                     <&camcc CAMCC_CSI3PHYTIMER_CLK>,
> +                     <&camcc CAMCC_IFE_0_AXI_CLK>,
> +                     <&camcc CAMCC_IFE_0_CLK>,
> +                     <&camcc CAMCC_IFE_0_CPHY_RX_CLK>,
> +                     <&camcc CAMCC_IFE_0_CSID_CLK>,
> +                     <&camcc CAMCC_IFE_1_AXI_CLK>,
> +                     <&camcc CAMCC_IFE_1_CLK>,
> +                     <&camcc CAMCC_IFE_1_CPHY_RX_CLK>,
> +                     <&camcc CAMCC_IFE_1_CSID_CLK>,
> +                     <&camcc CAMCC_IFE_2_AXI_CLK>,
> +                     <&camcc CAMCC_IFE_2_CLK>,
> +                     <&camcc CAMCC_IFE_2_CPHY_RX_CLK>,
> +                     <&camcc CAMCC_IFE_2_CSID_CLK>,
> +                     <&camcc CAMCC_IFE_LITE_CLK>,
> +                     <&camcc CAMCC_IFE_LITE_CPHY_RX_CLK>,
> +                     <&camcc CAMCC_IFE_LITE_CSID_CLK>,
> +                     <&camcc CAMCC_BPS_CLK>,
> +                     <&camcc CAMCC_BPS_AHB_CLK>,
> +                     <&camcc CAMCC_BPS_AREG_CLK>,
> +                     <&camcc CAMCC_BPS_AXI_CLK>,
> +                     <&camcc CAMCC_ICP_CLK>,
> +                     <&camcc CAMCC_IPE_0_CLK>,
> +                     <&camcc CAMCC_IPE_0_AHB_CLK>,
> +                     <&camcc CAMCC_IPE_0_AREG_CLK>,
> +                     <&camcc CAMCC_IPE_0_AXI_CLK>,
> +                     <&camcc CAMCC_JPEG_CLK>,
> +                     <&camcc CAMCC_LRME_CLK>;
> +            clock-names = "cam_axi",
> +                          "soc_ahb",
> +                          "camnoc_axi",
> +                          "core_ahb",
> +                          "cpas_ahb",
> +                          "csiphy0",
> +                          "csiphy0_timer",
> +                          "csiphy1",
> +                          "csiphy1_timer",
> +                          "csiphy2",
> +                          "csiphy2_timer",
> +                          "csiphy3",
> +                          "csiphy3_timer",
> +                          "vfe0_axi",
> +                          "vfe0",
> +                          "vfe0_cphy_rx",
> +                          "vfe0_csid",
> +                          "vfe1_axi",
> +                          "vfe1",
> +                          "vfe1_cphy_rx",
> +                          "vfe1_csid",
> +                          "vfe2_axi",
> +                          "vfe2",
> +                          "vfe2_cphy_rx",
> +                          "vfe2_csid",
> +                          "vfe_lite",
> +                          "vfe_lite_cphy_rx",
> +                          "vfe_lite_csid",
> +                          "bps",
> +                          "bps_ahb",
> +                          "bps_areg",
> +                          "bps_axi",
> +                          "icp",
> +                          "ipe0",
> +                          "ipe0_ahb",
> +                          "ipe0_areg",
> +                          "ipe0_axi",
> +                          "jpeg",
> +                          "lrme";
> +
> +            interrupts = <GIC_SPI 464 IRQ_TYPE_EDGE_RISING>,
> +                         <GIC_SPI 466 IRQ_TYPE_EDGE_RISING>,
> +                         <GIC_SPI 717 IRQ_TYPE_EDGE_RISING>,
> +                         <GIC_SPI 473 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 461 IRQ_TYPE_EDGE_RISING>,
> +                         <GIC_SPI 465 IRQ_TYPE_EDGE_RISING>,
> +                         <GIC_SPI 467 IRQ_TYPE_EDGE_RISING>,
> +                         <GIC_SPI 718 IRQ_TYPE_EDGE_RISING>,
> +                         <GIC_SPI 472 IRQ_TYPE_EDGE_RISING>,
> +                         <GIC_SPI 463 IRQ_TYPE_EDGE_RISING>,
> +                         <GIC_SPI 459 IRQ_TYPE_EDGE_RISING>,
> +                         <GIC_SPI 469 IRQ_TYPE_EDGE_RISING>,
> +                         <GIC_SPI 475 IRQ_TYPE_EDGE_RISING>,
> +                         <GIC_SPI 474 IRQ_TYPE_EDGE_RISING>,
> +                         <GIC_SPI 476 IRQ_TYPE_EDGE_RISING>;
> +            interrupt-names = "csid0",
> +                              "csid1",
> +                              "csid2",
> +                              "csid_lite",
> +                              "csiphy0",
> +                              "csiphy1",
> +                              "csiphy2",
> +                              "csiphy3",
> +                              "vfe0",
> +                              "vfe1",
> +                              "vfe2",
> +                              "vfe_lite",
> +                              "a5",
> +                              "cpas",
> +                              "cpas_cdm",
> +                              "jpeg_dma",
> +                              "jpeg_enc",
> +                              "lrme";
> +
> +            interconnects = <&gem_noc MASTER_AMPSS_M0 QCOM_ICC_TAG_ACTIVE_ONLY
> +                             &config_noc SLAVE_CAMERA_CFG QCOM_ICC_TAG_ACTIVE_ONLY>,
> +                            <&mmss_noc MASTER_CAMNOC_HF QCOM_ICC_TAG_ALWAYS
> +                             &clk_virt SLAVE_EBI_CH0 QCOM_ICC_TAG_ALWAYS>,
> +                            <&mmss_noc MASTER_CAMNOC_SF QCOM_ICC_TAG_ALWAYS
> +                             &clk_virt SLAVE_EBI_CH0 QCOM_ICC_TAG_ALWAYS>,
> +                            <&mmss_noc MASTER_CAMNOC_ICP QCOM_ICC_TAG_ALWAYS
> +                             &clk_virt SLAVE_EBI_CH0 QCOM_ICC_TAG_ALWAYS>;
> +            interconnect-names = "ahb",
> +                                 "hf_mnoc",
> +                                 "sf_mnoc",
> +                                 "sf_icp_mnoc";
> +
> +            iommus = <&apps_smmu 0x820 0xc0>,
> +                     <&apps_smmu 0x840 0x0>,
> +                     <&apps_smmu 0x860 0xc0>,
> +                     <&apps_smmu 0x880 0x0>,
> +                     <&apps_smmu 0xc40 0x20>,
> +                     <&apps_smmu 0xc60 0x20>,
> +                     <&apps_smmu 0xc80 0x0>,
> +                     <&apps_smmu 0xca2 0x0>,
> +                     <&apps_smmu 0xcc0 0x20>,
> +                     <&apps_smmu 0xce0 0x20>,
> +                     <&apps_smmu 0xd00 0x20>,
> +                     <&apps_smmu 0xd20 0x20>,
> +                     <&apps_smmu 0xd40 0x20>,
> +                     <&apps_smmu 0xd60 0x20>;
> +
> +            power-domains = <&camcc IFE_0_GDSC>,
> +                            <&camcc IFE_1_GDSC>,
> +                            <&camcc IFE_2_GDSC>,
> +                            <&camcc TITAN_TOP_GDSC>,
> +                            <&camcc BPS_GDSC>,
> +                            <&camcc IPE_0_GDSC>;
> +            power-domain-names = "ife0",
> +                                 "ife1",
> +                                 "ife2",
> +                                 "top",
> +                                 "bps",
> +                                 "ipe";
> +
> +            vdd-csiphy0-0p9-supply = <&vreg_l18a>;
> +            vdd-csiphy0-1p25-supply = <&vreg_l22a>;
> +            vdd-csiphy1-0p9-supply = <&vreg_l18a>;
> +            vdd-csiphy1-1p25-supply = <&vreg_l22a>;
> +            vdd-csiphy2-0p9-supply = <&vreg_l18a>;
> +            vdd-csiphy2-1p25-supply = <&vreg_l22a>;
> +            vdd-csiphy3-0p9-supply = <&vreg_l18a>;
> +            vdd-csiphy3-1p25-supply = <&vreg_l22a>;
> +
> +            ports {
> +                #address-cells = <1>;
> +                #size-cells = <0>;
> +
> +                port@0 {
> +                    reg = <0>;
> +
> +                    csiphy0_ep: endpoint {
> +                        data-lanes = <0 1 2 3>;
> +                        bus-type = <MEDIA_BUS_TYPE_CSI2_DPHY>;
> +                        remote-endpoint = <&sensor_ep>;
> +                    };
> +                };
> +            };
> +        };
> +    };
> 
> --
> 2.53.0
> 

Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>

  parent reply	other threads:[~2026-03-31  8:50 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-02-16  8:54 [PATCH v4 0/3] Add CAMSS support for SM6350 Luca Weiss
2026-02-16  8:54 ` [PATCH v4 1/3] dt-bindings: media: camss: Add qcom,sm6350-camss Luca Weiss
2026-03-30 22:57   ` Vladimir Zapolskiy
2026-03-31  6:38     ` Luca Weiss
2026-03-31  8:54       ` Bryan O'Donoghue
2026-03-31  8:50   ` Bryan O'Donoghue [this message]
2026-02-16  8:54 ` [PATCH v4 2/3] media: qcom: camss: Add SM6350 support Luca Weiss
2026-03-31 13:20   ` Vladimir Zapolskiy
2026-02-16  8:54 ` [PATCH v4 3/3] arm64: dts: qcom: sm6350: Add CAMSS node Luca Weiss
2026-03-31 13:29   ` Vladimir Zapolskiy
2026-03-30 22:49 ` [PATCH v4 0/3] Add CAMSS support for SM6350 Vladimir Zapolskiy
2026-04-03  8:09   ` Luca Weiss
2026-04-03 10:09     ` Vladimir Zapolskiy
2026-04-03 15:07     ` Bryan O'Donoghue

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=07d778ce-83b8-49de-ad51-b43044e0c88c@kernel.org \
    --to=bod@kernel.org \
    --cc=andersson@kernel.org \
    --cc=bryan.odonoghue@linaro.org \
    --cc=conor+dt@kernel.org \
    --cc=devicetree@vger.kernel.org \
    --cc=konradybcio@kernel.org \
    --cc=krzk+dt@kernel.org \
    --cc=krzysztof.kozlowski@oss.qualcomm.com \
    --cc=linux-arm-msm@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-media@vger.kernel.org \
    --cc=luca.weiss@fairphone.com \
    --cc=mchehab@kernel.org \
    --cc=phone-devel@vger.kernel.org \
    --cc=rfoss@kernel.org \
    --cc=robh@kernel.org \
    --cc=todor.too@gmail.com \
    --cc=vladimir.zapolskiy@linaro.org \
    --cc=~postmarketos/upstreaming@lists.sr.ht \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox