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Date:   Fri, 20 Nov 2020 14:17:35 -0600
From:   Rob Herring <robh+dt@...nel.org>
To:     Sowjanya Komatineni <skomatineni@...dia.com>
Cc:     Thierry Reding <thierry.reding@...il.com>,
        Jon Hunter <jonathanh@...dia.com>, devicetree@...r.kernel.org,
        "open list:LIBATA SUBSYSTEM (Serial and Parallel ATA drivers)" 
        <linux-ide@...r.kernel.org>,
        linux-tegra <linux-tegra@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 3/6] dt-bindings: ata: tegra: Convert binding
 documentation to YAML

On Fri, Nov 13, 2020 at 1:36 PM Sowjanya Komatineni
<skomatineni@...dia.com> wrote:
>
> This patch converts text based dt-binding document to YAML based
> dt-binding document.
>
> Signed-off-by: Sowjanya Komatineni <skomatineni@...dia.com>
> ---
>  .../devicetree/bindings/ata/nvidia,tegra-ahci.yaml | 137 +++++++++++++++++++++
>  .../bindings/ata/nvidia,tegra124-ahci.txt          |  44 -------
>  2 files changed, 137 insertions(+), 44 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/ata/nvidia,tegra-ahci.yaml
>  delete mode 100644 Documentation/devicetree/bindings/ata/nvidia,tegra124-ahci.txt
>
> diff --git a/Documentation/devicetree/bindings/ata/nvidia,tegra-ahci.yaml b/Documentation/devicetree/bindings/ata/nvidia,tegra-ahci.yaml
> new file mode 100644
> index 0000000..dbbe460
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/ata/nvidia,tegra-ahci.yaml
> @@ -0,0 +1,137 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/ata/nvidia,tegra-ahci.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Tegra AHCI SATA Controller
> +
> +maintainers:
> +  - Thierry Reding <thierry.reding@...il.com>
> +  - Jonathan Hunter <jonathanh@...dia.com>
> +
> +properties:
> +  compatible:
> +    enum:
> +      - nvidia,tegra124-ahci
> +      - nvidia,tegra132-ahci
> +      - nvidia,tegra210-ahci
> +
> +  reg:
> +    minItems: 2
> +    maxItems: 3
> +    items:
> +      - description: AHCI registers
> +      - description: SATA configuration and IPFS registers
> +      - description: SATA AUX registers
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  clock-names:
> +    items:
> +      - const: sata
> +      - const: sata-oob
> +
> +  clocks:
> +    maxItems: 2
> +
> +  reset-names:
> +    items:
> +      - const: sata
> +      - const: sata-cold
> +      - const: sata-oob
> +
> +  resets:
> +    maxItems: 3
> +
> +  phy-names:
> +    items:
> +      - const: sata-0
> +
> +  phys:
> +    maxItems: 1
> +
> +  hvdd-supply:
> +    description: SATA HVDD regulator supply.
> +
> +  vddio-supply:
> +    description: SATA VDDIO regulator supply.
> +
> +  avdd-supply:
> +    description: SATA AVDD regulator supply.
> +
> +  target-5v-supply:
> +    description: SATA 5V power regulator supply.
> +
> +  target-12v-supply:
> +    description: SATA 12V power regulator supply.
> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +  - clock-names
> +  - clocks
> +  - reset-names
> +  - resets
> +
> +allOf:
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            enum:
> +              - nvidia,tegra124-ahci
> +              - nvidia,tegra132-ahci
> +    then:
> +      properties:
> +        reg:
> +          maxItems: 2
> +        reset-names:
> +          minItems: 3
> +        resets:
> +          minItems: 3
> +      required:
> +        - phys
> +        - phy-names
> +        - hvdd-supply
> +        - vddio-supply
> +        - avdd-supply
> +
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            enum:
> +              - nvidia,tegra210-ahci
> +    then:
> +      properties:
> +        reg:
> +          minItems: 3
> +        reset-names:
> +          minItems: 3
> +        resets:
> +          minItems: 3
> +
> +additionalProperties: true
> +
> +examples:
> +  - |
> +    #include <dt-bindings/clock/tegra210-car.h>
> +    #include <dt-bindings/reset/tegra210-car.h>
> +
> +    sata@...20000 {
> +            compatible = "nvidia,tegra210-ahci";
> +            reg = <0x0 0x70027000 0x0 0x00002000>, /* AHCI */
> +                  <0x0 0x70020000 0x0 0x00007000>, /* SATA */
> +                  <0x0 0x70001100 0x0 0x00010000>; /* SATA AUX */

The default sizes are 1 cell for address and size, so this will give
you warnings. You either need to adjust the entries here or add a
parent node setting the sizes to 2 cells.

> +            interrupts = <GIC_SPI 23 IRQ_TYPE_LEVEL_HIGH>;

The error is because you need the include files for these defines.

> +            clocks = <&tegra_car TEGRA210_CLK_SATA>,
> +                     <&tegra_car TEGRA210_CLK_SATA_OOB>;
> +            clock-names = "sata", "sata-oob";
> +            resets = <&tegra_car 124>,
> +                     <&tegra_car 129>,
> +                     <&tegra_car 123>;
> +            reset-names = "sata", "sata-cold", "sata-oob";
> +    };

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