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Message-ID: <8d806fc9-0067-2c8d-ec41-13787c7644a2@linaro.org>
Date: Thu, 16 Jun 2022 15:54:28 -0700
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: wangseok.lee@...sung.com,
"robh+dt@...nel.org" <robh+dt@...nel.org>,
"krzk+dt@...nel.org" <krzk+dt@...nel.org>,
"kishon@...com" <kishon@...com>,
"vkoul@...nel.org" <vkoul@...nel.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"jesper.nilsson@...s.com" <jesper.nilsson@...s.com>,
"lars.persson@...s.com" <lars.persson@...s.com>,
"bhelgaas@...gle.com" <bhelgaas@...gle.com>,
"linux-phy@...ts.infradead.org" <linux-phy@...ts.infradead.org>,
"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
"lorenzo.pieralisi@....com" <lorenzo.pieralisi@....com>,
"kw@...ux.com" <kw@...ux.com>,
"linux-arm-kernel@...s.com" <linux-arm-kernel@...s.com>,
"kernel@...s.com" <kernel@...s.com>
Cc: Moon-Ki Jun <moonki.jun@...sung.com>,
Sang Min Kim <hypmean.kim@...sung.com>,
Dongjin Yang <dj76.yang@...sung.com>,
Yeeun Kim <yeeun119.kim@...sung.com>
Subject: Re: [PATCH v3 1/5] dt-bindings: pci: Add ARTPEC-8 PCIe controller
On 13/06/2022 18:27, Wangseok Lee wrote:
> Add description to support Axis, ARTPEC-8 SoC.
> ARTPEC-8 is the SoC platform of Axis Communications
> and PCIe controller is designed based on Design-Ware PCIe controller.
>
> Signed-off-by: Wangseok Lee <wangseok.lee@...sung.com>
> ---
> v2->v3 :
> - modify version history to fit the linux commit rule
> - remove 'Device Tree Bindings' on title
> - remove the interrupt-names, phy-names entries
> - remove '_clk' suffix
> - add the compatible entries on required
> - change node name to soc from artpec8 on examples
>
> v1->v2 :
> -'make dt_binding_check' result improvement
> -Add the missing property list
> -Align the indentation of continued lines/entries
> ---
> .../bindings/pci/axis,artpec8-pcie-ep.yaml | 109 +++++++++++++++++++
> .../devicetree/bindings/pci/axis,artpec8-pcie.yaml | 120 +++++++++++++++++++++
> 2 files changed, 229 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/pci/axis,artpec8-pcie-ep.yaml
> create mode 100644 Documentation/devicetree/bindings/pci/axis,artpec8-pcie.yaml
>
> diff --git a/Documentation/devicetree/bindings/pci/axis,artpec8-pcie-ep.yaml b/Documentation/devicetree/bindings/pci/axis,artpec8-pcie-ep.yaml
> new file mode 100644
> index 0000000..d802bba
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/pci/axis,artpec8-pcie-ep.yaml
> @@ -0,0 +1,109 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/pci/axis,artpec8-pcie-ep.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: ARTPEC-8 SoC PCIe Controller
> +
> +maintainers:
> + - Jesper Nilsson <jesper.nilsson@...s.com>
> +
> +description: |+
> + This PCIe end-point controller is based on the Synopsys DesignWare PCIe IP
> + and thus inherits all the common properties defined in snps,dw-pcie-ep.yaml.
> +
> +allOf:
> + - $ref: /schemas/pci/snps,dw-pcie-ep.yaml#
> +
> +properties:
> + compatible:
> + const: axis,artpec8-pcie-ep
> +
> + reg:
> + items:
> + - description: Data Bus Interface (DBI) registers.
> + - description: Data Bus Interface (DBI2) registers.
> + - description: PCIe address space region.
> +
> + reg-names:
> + items:
> + - const: dbi
> + - const: dbi2
> + - const: addr_space
> +
> + interrupts:
> + maxItems: 1
> +
> + clocks:
> + items:
> + - description: PIPE clock, used by the controller to clock the PIPE
> + - description: PCIe dbi clock, ungated version
> + - description: PCIe master clock, ungated version
> + - description: PCIe slave clock, ungated version
> +
> + clock-names:
> + items:
> + - const: pipe
> + - const: dbi
> + - const: mstr
> + - const: slv
> +
> + phys:
> + maxItems: 1
> +
> + num-lanes:
> + const: 2
> +
> +required:
> + - compatible
> + - reg
> + - reg-names
> + - interrupts
> + - interrupt-names
> + - clocks
> + - clock-names
> + - samsung,fsys-sysreg
> + - samsung,syscon-phandle
> + - samsung,syscon-bus-s-fsys
> + - samsung,syscon-bus-p-fsys
We are making circles... This was before and I commented already it is
wrong. You cannot have some unknown/random properties in "required:"
without describing them in "properties:". Please list all your
properties in "properties:", except the ones coming from snps
bindings/schema.
> + - phys
> + - num-lanes
> +
> +unevaluatedProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/interrupt-controller/irq.h>
> + #include <dt-bindings/interrupt-controller/arm-gic.h>
> +
> + soc {
> + #address-cells = <2>;
> + #size-cells = <2>;
> + pcie_ep: pcie-ep@...00000 {
> + compatible = "axis,artpec8-pcie-ep";
> + reg = <0x0 0x17200000 0x0 0x1000>,
> + <0x0 0x17201000 0x0 0x1000>,
> + <0x2 0x00000000 0x6 0x00000000>;
> + reg-names = "dbi", "dbi2", "addr_space";
> + #interrupt-cells = <1>;
> + interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>;
> + interrupt-names = "intr";
> + clocks = <&clock_cmu_fsys 39>,
> + <&clock_cmu_fsys 38>,
> + <&clock_cmu_fsys 37>,
> + <&clock_cmu_fsys 36>;
> + clock-names = "pipe", "dbi", "mstr", "slv";
> + samsung,fsys-sysreg = <&syscon_fsys>;
> + samsung,syscon-phandle = <&pmu_system_controller>;
> + samsung,syscon-bus-s-fsys = <&syscon_bus_s_fsys>;
> + samsung,syscon-bus-p-fsys = <&syscon_bus_p_fsys>;
> + phys = <&pcie_phy>;
> + phy-names = "pcie_phy";
> + num-lanes = <2>;
> + bus-range = <0x00 0xff>;
> + num-ib-windows = <16>;
> + num-ob-windows = <16>;
> + };
> + };
> +...
> diff --git a/Documentation/devicetree/bindings/pci/axis,artpec8-pcie.yaml b/Documentation/devicetree/bindings/pci/axis,artpec8-pcie.yaml
> new file mode 100644
> index 0000000..dbbe1fd
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/pci/axis,artpec8-pcie.yaml
> @@ -0,0 +1,120 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/pci/axis,artpec8-pcie.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Artpec-8 SoC PCIe Controller
> +
> +maintainers:
> + - Jesper Nilsson <jesper.nilsson@...s.com>
> +
> +description: |+
> + This PCIe host controller is based on the Synopsys DesignWare PCIe IP
> + and thus inherits all the common properties defined in snps,dw-pcie.yaml.
> +
> +allOf:
> + - $ref: /schemas/pci/snps,dw-pcie.yaml#
> +
> +properties:
> + compatible:
> + const: axis,artpec8-pcie
> +
> + reg:
> + items:
> + - description: Data Bus Interface (DBI) registers.
> + - description: External Local Bus interface (ELBI) registers.
> + - description: PCIe configuration space region.
> +
> + reg-names:
> + items:
> + - const: dbi
> + - const: elbi
> + - const: config
> +
> + ranges:
> + maxItems: 2
> +
> + num-lanes:
> + const: 2
> +
> + interrupts:
> + maxItems: 1
> +
> + clocks:
> + items:
> + - description: PIPE clock, used by the controller to clock the PIPE
> + - description: PCIe dbi clock, ungated version
> + - description: PCIe master clock, ungated version
> + - description: PCIe slave clock, ungated version
> +
> + clock-names:
> + items:
> + - const: pipe
> + - const: dbi
> + - const: mstr
> + - const: slv
> +
> + phys:
> + maxItems: 1
> +
> +required:
> + - compatible
> + - reg
> + - reg-names
> + - device_type
> + - ranges
> + - num-lanes
> + - interrupts
> + - interrupt-names
> + - clocks
> + - clock-names
> + - samsung,fsys-sysreg
> + - samsung,syscon-phandle
> + - samsung,syscon-bus-s-fsys
> + - samsung,syscon-bus-p-fsys
Same problem.
Best regards,
Krzysztof
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