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SubjectRe: [PATCH v4 06/12] dt-bindings: Add en7523-scu device tree binding documentation
On Thu, Nov 25, 2021 at 12:07:32PM +0100, Felix Fietkau wrote:
> From: John Crispin <john@phrozen.org>
>
> Adds device tree binding documentation for clocks in the EN7523 SOC.
>
> Signed-off-by: Felix Fietkau <nbd@nbd.name>
> Signed-off-by: John Crispin <john@phrozen.org>
> ---
> .../bindings/clock/airoha,en7523-scu.yaml | 58 +++++++++++++++++++
> include/dt-bindings/clock/en7523-clk.h | 17 ++++++
> 2 files changed, 75 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/clock/airoha,en7523-scu.yaml
> create mode 100644 include/dt-bindings/clock/en7523-clk.h
>
> diff --git a/Documentation/devicetree/bindings/clock/airoha,en7523-scu.yaml b/Documentation/devicetree/bindings/clock/airoha,en7523-scu.yaml
> new file mode 100644
> index 000000000000..79660f8126fa
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/clock/airoha,en7523-scu.yaml
> @@ -0,0 +1,58 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/clock/airoha,en7523-scu.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: EN7523 Clock Device Tree Bindings
> +
> +maintainers:
> + - Felix Fietkau <nbd@nbd.name>
> + - John Crispin <nbd@nbd.name>
> +
> +description: |
> + This node defines the System Control Unit of the EN7523 SoC,
> + a collection of registers configuring many different aspects of the SoC.
> +
> + The clock driver uses it to read and configure settings of the
> + PLL controller, which provides clocks for the CPU, the bus and
> + other SoC internal peripherals.
> +
> + Each clock is assigned an identifier and client nodes use this identifier
> + to specify which clock they consume.
> +
> + All these identifiers can be found in:
> + [1]: <include/dt-bindings/clock/en7523-clk.h>.
> +
> + The clocks are provided inside a system controller node.
> +
> +properties:
> + compatible:
> + items:
> + - const: airoha,en7523-scu
> +
> + reg:
> + maxItems: 2
> +
> + "#clock-cells":
> + description:
> + The first cell indicates the clock number, see [1] for available
> + clocks.
> + const: 1
> +
> +required:
> + - compatible
> + - reg
> + - '#clock-cells'
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/clock/en7523-clk.h>
> + scu: scu@1fa20000 {
> + compatible = "airoha,en7523-scu";
> + reg = <0x1fa20000 0x400>,
> + <0x1fb00000 0x1000>;
> + #clock-cells = <1>;
> + };
> diff --git a/include/dt-bindings/clock/en7523-clk.h b/include/dt-bindings/clock/en7523-clk.h
> new file mode 100644
> index 000000000000..7c8414a7cb66
> --- /dev/null
> +++ b/include/dt-bindings/clock/en7523-clk.h
> @@ -0,0 +1,17 @@
> +/* SPDX-License-Identifier: GPL-2.0 */

Using DT with non-GPL OS? Dual license header and dts files.

> +
> +#ifndef _DT_BINDINGS_CLOCK_AIROHA_EN7523_H_
> +#define _DT_BINDINGS_CLOCK_AIROHA_EN7523_H_
> +
> +#define EN7523_CLK_GSW 0
> +#define EN7523_CLK_EMI 1
> +#define EN7523_CLK_BUS 2
> +#define EN7523_CLK_SLIC 3
> +#define EN7523_CLK_SPI 4
> +#define EN7523_CLK_NPU 5
> +#define EN7523_CLK_CRYPTO 6
> +#define EN7523_CLK_PCIE 7
> +
> +#define EN7523_NUM_CLOCKS 8
> +
> +#endif /* _DT_BINDINGS_CLOCK_AIROHA_EN7523_H_ */
> --
> 2.30.1
>
>

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