diff mbox series

[1/6] dt bindings: remoteproc: Add bindings for MT8183 APU

Message ID 20200713132927.24925-2-abailon@baylibre.com (mailing list archive)
State New, archived
Headers show
Series Add support of mt8183 APU | expand

Commit Message

Alexandre Bailon July 13, 2020, 1:29 p.m. UTC 
This adds dt bindings for the APU present in the MT8183.

Signed-off-by: Alexandre Bailon <abailon@baylibre.com>
---
 .../bindings/remoteproc/mtk,apu.yaml          | 121 ++++++++++++++++++
 1 file changed, 121 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/remoteproc/mtk,apu.yaml

Comments

Rob Herring (Arm) July 14, 2020, 5:19 p.m. UTC | #1 
On Mon, 13 Jul 2020 15:29:22 +0200, Alexandre Bailon wrote:
> This adds dt bindings for the APU present in the MT8183.
> 
> Signed-off-by: Alexandre Bailon <abailon@baylibre.com>
> ---
>  .../bindings/remoteproc/mtk,apu.yaml          | 121 ++++++++++++++++++
>  1 file changed, 121 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/remoteproc/mtk,apu.yaml
> 


My bot found errors running 'make dt_binding_check' on your patch:

/builds/robherring/linux-dt-review/Documentation/devicetree/bindings/remoteproc/mtk,apu.yaml: properties:pinctrl-names:maxItems: False schema does not allow 2
Documentation/devicetree/bindings/Makefile:20: recipe for target 'Documentation/devicetree/bindings/remoteproc/mtk,apu.example.dts' failed
make[1]: *** [Documentation/devicetree/bindings/remoteproc/mtk,apu.example.dts] Error 1
make[1]: *** Waiting for unfinished jobs....
/builds/robherring/linux-dt-review/Documentation/devicetree/bindings/remoteproc/mtk,apu.yaml: ignoring, error in schema: properties: pinctrl-names: maxItems
warning: no schema found in file: ./Documentation/devicetree/bindings/remoteproc/mtk,apu.yaml
/builds/robherring/linux-dt-review/Documentation/devicetree/bindings/remoteproc/mtk,apu.yaml: ignoring, error in schema: properties: pinctrl-names: maxItems
warning: no schema found in file: ./Documentation/devicetree/bindings/remoteproc/mtk,apu.yaml
Makefile:1347: recipe for target 'dt_binding_check' failed
make: *** [dt_binding_check] Error 2


See https://patchwork.ozlabs.org/patch/1328008

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure dt-schema is up to date:

pip3 install git+https://github.com/devicetree-org/dt-schema.git@master --upgrade

Please check and re-submit.
Rob Herring (Arm) July 14, 2020, 5:22 p.m. UTC | #2 
On Mon, Jul 13, 2020 at 03:29:22PM +0200, Alexandre Bailon wrote:
> This adds dt bindings for the APU present in the MT8183.
> 
> Signed-off-by: Alexandre Bailon <abailon@baylibre.com>
> ---
>  .../bindings/remoteproc/mtk,apu.yaml          | 121 ++++++++++++++++++
>  1 file changed, 121 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/remoteproc/mtk,apu.yaml
> 
> diff --git a/Documentation/devicetree/bindings/remoteproc/mtk,apu.yaml b/Documentation/devicetree/bindings/remoteproc/mtk,apu.yaml
> new file mode 100644
> index 000000000000..1d5fcc135617
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/remoteproc/mtk,apu.yaml
> @@ -0,0 +1,121 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +
> +---
> +$id: "http://devicetree.org/schemas/remoteproc/mtk,apu.yaml#"
> +$schema: "http://devicetree.org/meta-schemas/core.yaml#"
> +
> +title: MT8183 Vision Processor Unit (VPU) devices

APU or VPU?

> +
> +description:
> +  This document defines the binding for the APU, a co-processor that could
> +  offload the CPU for machine learning and neural network.
> +
> +maintainers:
> +  - Alexandre Bailon <abailon@bayLibre.com>
> +
> +properties:
> +  compatible:
> +    const: mediatek,mt8183-apu
> +
> +  reg:
> +    description:
> +      Address ranges of the APU MMIO.

Don't put generic descriptions for standard properties.

> +    maxItems: 1
> +
> +  interrupts:
> +    description:
> +      The interrupt number used to receive the interrupts from the DSP.
> +    maxItems: 1
> +
> +  clocks:
> +    description:
> +      "Clocks for co-processor (See: ../clock/clock-bindings.txt)
> +      Three clocks are expected for AXI, IPU and JTAG.
> +      The JTAG clock seems to be required to run the DSP,
> +      even when JTAG is not in use."
> +    maxItems: 3

blank line between properties please.

> +  clock-names:
> +    description:
> +      The name of clocks, must be ipu, axi and jtag

That's what the schema says...

> +    items:
> +      - const: ipu
> +      - const: axi
> +      - const: jtag
> +
> +  iommu:
> +    description: "IOMMU (See: ../iommu/iommu.txt)"
> +    maxItems: 3
> +
> +  memory-region:
> +    description: "Reserved memory (See: ../reserved-memory/reserved-memory.txt)"
> +    maxItems: 1
> +
> +  power-domains:
> +    description: "Power domain (see: ../power/power_domain.txt)"
> +    maxItems: 1
> +
> +  pinctrl:
> +    description: pinctrl handles, required to configure pins for JTAG.
> +    maxItems: 2
> +
> +  pinctrl-names:
> +    description:
> +      pinctrl name, must be "default", "jtag".
> +      "default" must configure the pins when JTAG is disabled.
> +      "jtag" must configure the pins for JTAG operations.
> +    items:
> +      - const: default
> +      - const: jtag
> +    maxItems: 2

Don't need maxItems.

> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +  - clocks
> +  - clock-names
> +  - iommu
> +  - memory-region
> +  - power-domains

Add:

additionalProperties: false

> +
> +examples:
> +  - |
> +    #include <dt-bindings/clock/mt8183-clk.h>
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +    #include <dt-bindings/memory/mt8183-larb-port.h>
> +    #include <dt-bindings/power/mt8183-power.h>
> +
> +    reserved-memory {
> +      #address-cells = <1>;
> +      #size-cells = <1>;
> +      ranges;
> +
> +      vpu_ram: vpu_ram@0x60000000 {
> +        compatible = "shared-dma-pool";
> +        reg = <0 0x60000000 0 0x040000000>;
> +        no-map;
> +        linux,cma-default;
> +      };
> +    };
> +
> +    vpu0: vpu@0x19100000 {

vpu?

Drop the '0x'

> +      compatible = "mediatek,mt8183-apu";
> +      reg = <0 0x19180000 0 0x14000>;

The default cell size for examples is 1.

> +      reg-names = "mmio";
> +      interrupts = <GIC_SPI 292 IRQ_TYPE_LEVEL_LOW>;
> +
> +      iommus = <&iommu M4U_PORT_IMG_IPUO>,
> +         <&iommu M4U_PORT_IMG_IPU3O>,
> +         <&iommu M4U_PORT_IMG_IPUI>;
> +
> +      clocks = <&ipu_core0 CLK_IPU_CORE0_AXI>,
> +         <&ipu_core0 CLK_IPU_CORE0_IPU>,
> +         <&ipu_core0 CLK_IPU_CORE0_JTAG>;
> +
> +      clock-names = "axi", "ipu", "jtag";

Doesn't match the schema which 'make dt_binding_check' will tell you.

> +
> +      power-domains = <&scpsys MT8183_POWER_DOMAIN_VPU_CORE0>;
> +      memory-region = <&vpu_ram>;
> +    };
> +...
> -- 
> 2.26.2
>
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/remoteproc/mtk,apu.yaml b/Documentation/devicetree/bindings/remoteproc/mtk,apu.yaml
new file mode 100644
index 000000000000..1d5fcc135617
--- /dev/null
+++ b/Documentation/devicetree/bindings/remoteproc/mtk,apu.yaml
@@ -0,0 +1,121 @@ 
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+
+---
+$id: "http://devicetree.org/schemas/remoteproc/mtk,apu.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: MT8183 Vision Processor Unit (VPU) devices
+
+description:
+  This document defines the binding for the APU, a co-processor that could
+  offload the CPU for machine learning and neural network.
+
+maintainers:
+  - Alexandre Bailon <abailon@bayLibre.com>
+
+properties:
+  compatible:
+    const: mediatek,mt8183-apu
+
+  reg:
+    description:
+      Address ranges of the APU MMIO.
+    maxItems: 1
+
+  interrupts:
+    description:
+      The interrupt number used to receive the interrupts from the DSP.
+    maxItems: 1
+
+  clocks:
+    description:
+      "Clocks for co-processor (See: ../clock/clock-bindings.txt)
+      Three clocks are expected for AXI, IPU and JTAG.
+      The JTAG clock seems to be required to run the DSP,
+      even when JTAG is not in use."
+    maxItems: 3
+  clock-names:
+    description:
+      The name of clocks, must be ipu, axi and jtag
+    items:
+      - const: ipu
+      - const: axi
+      - const: jtag
+
+  iommu:
+    description: "IOMMU (See: ../iommu/iommu.txt)"
+    maxItems: 3
+
+  memory-region:
+    description: "Reserved memory (See: ../reserved-memory/reserved-memory.txt)"
+    maxItems: 1
+
+  power-domains:
+    description: "Power domain (see: ../power/power_domain.txt)"
+    maxItems: 1
+
+  pinctrl:
+    description: pinctrl handles, required to configure pins for JTAG.
+    maxItems: 2
+
+  pinctrl-names:
+    description:
+      pinctrl name, must be "default", "jtag".
+      "default" must configure the pins when JTAG is disabled.
+      "jtag" must configure the pins for JTAG operations.
+    items:
+      - const: default
+      - const: jtag
+    maxItems: 2
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+  - iommu
+  - memory-region
+  - power-domains
+
+examples:
+  - |
+    #include <dt-bindings/clock/mt8183-clk.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/memory/mt8183-larb-port.h>
+    #include <dt-bindings/power/mt8183-power.h>
+
+    reserved-memory {
+      #address-cells = <1>;
+      #size-cells = <1>;
+      ranges;
+
+      vpu_ram: vpu_ram@0x60000000 {
+        compatible = "shared-dma-pool";
+        reg = <0 0x60000000 0 0x040000000>;
+        no-map;
+        linux,cma-default;
+      };
+    };
+
+    vpu0: vpu@0x19100000 {
+      compatible = "mediatek,mt8183-apu";
+      reg = <0 0x19180000 0 0x14000>;
+      reg-names = "mmio";
+      interrupts = <GIC_SPI 292 IRQ_TYPE_LEVEL_LOW>;
+
+      iommus = <&iommu M4U_PORT_IMG_IPUO>,
+         <&iommu M4U_PORT_IMG_IPU3O>,
+         <&iommu M4U_PORT_IMG_IPUI>;
+
+      clocks = <&ipu_core0 CLK_IPU_CORE0_AXI>,
+         <&ipu_core0 CLK_IPU_CORE0_IPU>,
+         <&ipu_core0 CLK_IPU_CORE0_JTAG>;
+
+      clock-names = "axi", "ipu", "jtag";
+
+      power-domains = <&scpsys MT8183_POWER_DOMAIN_VPU_CORE0>;
+      memory-region = <&vpu_ram>;
+    };
+...