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SubjectRe: [PATCH 05/13] dt-bindings: clock: Convert Calxeda clock bindings to json-schema
On Wed, Feb 26, 2020 at 06:08:53PM +0000, Andre Przywara wrote:
> Convert the Calxeda clock bindings to DT schema format using json-schema.
>
> This just covers the actual PLL and divider clock nodes. In the actual
> DTs they are somewhat unconnected (no ranges or bus compatible) children
> of the sregs node, but for the actual clock bindings this is not
> relevant.
>
> One oddity is that the addresses are relative to the parent node,
> without that being pronounced using a ranges property.
> But this is too late to fix now.
>
> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
> Cc: Michael Turquette <mturquette@baylibre.com>
> Cc: Stephen Boyd <sboyd@kernel.org>
> Cc: linux-clk@vger.kernel.org
>
> ---
> .../devicetree/bindings/clock/calxeda.txt | 17 ----
> .../devicetree/bindings/clock/calxeda.yaml | 83 +++++++++++++++++++
> 2 files changed, 83 insertions(+), 17 deletions(-)
> delete mode 100644 Documentation/devicetree/bindings/clock/calxeda.txt
> create mode 100644 Documentation/devicetree/bindings/clock/calxeda.yaml
>
> diff --git a/Documentation/devicetree/bindings/clock/calxeda.txt b/Documentation/devicetree/bindings/clock/calxeda.txt
> deleted file mode 100644
> index 0a6ac1bdcda1..000000000000
> --- a/Documentation/devicetree/bindings/clock/calxeda.txt
> +++ /dev/null
> @@ -1,17 +0,0 @@
> -Device Tree Clock bindings for Calxeda highbank platform
> -
> -This binding uses the common clock binding[1].
> -
> -[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
> -
> -Required properties:
> -- compatible : shall be one of the following:
> - "calxeda,hb-pll-clock" - for a PLL clock
> - "calxeda,hb-a9periph-clock" - The A9 peripheral clock divided from the
> - A9 clock.
> - "calxeda,hb-a9bus-clock" - The A9 bus clock divided from the A9 clock.
> - "calxeda,hb-emmc-clock" - Divided clock for MMC/SD controller.
> -- reg : shall be the control register offset from SYSREGs base for the clock.
> -- clocks : shall be the input parent clock phandle for the clock. This is
> - either an oscillator or a pll output.
> -- #clock-cells : from common clock binding; shall be set to 0.
> diff --git a/Documentation/devicetree/bindings/clock/calxeda.yaml b/Documentation/devicetree/bindings/clock/calxeda.yaml
> new file mode 100644
> index 000000000000..0ad66af0eb0c
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/clock/calxeda.yaml
> @@ -0,0 +1,83 @@
> +# SPDX-License-Identifier: GPL-2.0
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/clock/calxeda.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Device Tree Clock bindings for Calxeda highbank platform
> +
> +description: |
> + This binding covers the Calxeda SoC internal peripheral and bus clocks
> + as used by peripherals. The clocks live inside the "system register"
> + region of the SoC, so are typically presented as children of an
> + "hb-sregs" node.
> +
> +maintainers:
> + - Andre Przywara <andre.przywara@arm.com>
> +
> +properties:
> + "#clock-cells":
> + const: 0
> +
> + compatible:
> + enum:
> + - calxeda,hb-pll-clock
> + - calxeda,hb-a9periph-clock
> + - calxeda,hb-a9bus-clock
> + - calxeda,hb-emmc-clock
> +
> + reg:
> + maxItems: 1
> +
> + clocks:
> + $ref: /schemas/types.yaml#/definitions/phandle-array
There's no need to specify the type, it's already checked by a schemas
there:
https://github.com/devicetree-org/dt-schema/blob/master/schemas/clock/clock.yaml

Maxime
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