On Fri, Sep 17, 2021 at 12:23:52AM +0530, Jayesh Choudhary wrote:
> Converts the RNG bindings for OMAP SoCs and Inside-Secure
> HWRNG modules to YAML schema.
>
> Signed-off-by: Jayesh Choudhary <j-choudhary@xxxxxx>
> ---
> .../devicetree/bindings/rng/omap_rng.txt | 38 --------
> .../devicetree/bindings/rng/omap_rng.yaml | 94 +++++++++++++++++++
> 2 files changed, 94 insertions(+), 38 deletions(-)
> delete mode 100644 Documentation/devicetree/bindings/rng/omap_rng.txt
> create mode 100644 Documentation/devicetree/bindings/rng/omap_rng.yaml
>
> diff --git a/Documentation/devicetree/bindings/rng/omap_rng.txt b/Documentation/devicetree/bindings/rng/omap_rng.txt
> deleted file mode 100644
> index ea434ce50f36..000000000000
> --- a/Documentation/devicetree/bindings/rng/omap_rng.txt
> +++ /dev/null
> @@ -1,38 +0,0 @@
> -OMAP SoC and Inside-Secure HWRNG Module
> -
> -Required properties:
> -
> -- compatible : Should contain entries for this and backward compatible
> - RNG versions:
> - - "ti,omap2-rng" for OMAP2.
> - - "ti,omap4-rng" for OMAP4, OMAP5 and AM33XX.
> - - "inside-secure,safexcel-eip76" for SoCs with EIP76 IP block
> - Note that these two versions are incompatible.
> -- ti,hwmods: Name of the hwmod associated with the RNG module
> -- reg : Offset and length of the register set for the module
> -- interrupts : the interrupt number for the RNG module.
> - Used for "ti,omap4-rng" and "inside-secure,safexcel-eip76"
> -- clocks: the trng clock source. Only mandatory for the
> - "inside-secure,safexcel-eip76" compatible, the second clock is
> - needed for the Armada 7K/8K SoCs
> -- clock-names: mandatory if there is a second clock, in this case the
> - name must be "core" for the first clock and "reg" for the second
> - one
> -
> -
> -Example:
> -/* AM335x */
> -rng: rng@48310000 {
> - compatible = "ti,omap4-rng";
> - ti,hwmods = "rng";
> - reg = <0x48310000 0x2000>;
> - interrupts = <111>;
> -};
> -
> -/* SafeXcel IP-76 */
> -trng: rng@f2760000 {
> - compatible = "inside-secure,safexcel-eip76";
> - reg = <0xf2760000 0x7d>;
> - interrupts = <GIC_SPI 59 IRQ_TYPE_LEVEL_HIGH>;
> - clocks = <&cpm_syscon0 1 25>;
> -};
> diff --git a/Documentation/devicetree/bindings/rng/omap_rng.yaml b/Documentation/devicetree/bindings/rng/omap_rng.yaml
> new file mode 100644
> index 000000000000..86bbc2c53e7d
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/rng/omap_rng.yaml
> @@ -0,0 +1,94 @@
> +# SPDX-License-Identifier: (GPL-2.0+ OR BSD-2-Clause)
GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/rng/omap_rng.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: OMAP SoC and Inside-Secure HWRNG Module
> +
> +maintainers:
> + - Jayesh Choudhary <j-choudhary@xxxxxx>
> +
> +properties:
> + compatible:
> + enum:
> + - ti,omap2-rng
> + - ti,omap4-rng
> + - inside-secure,safexcel-eip76
> +
> + ti,hwmods:
> + const: rng
> + deprecated: true
> + description: Name of the hwmod associated with the RNG module
> +
> + reg:
> + maxItems: 1
> +
> + interrupts:
> + maxItems: 1
> +
> + clocks:
> + minItems: 1
> + maxItems: 2
> + items:
> + - description: EIP150 gatable clock
> + - description: Main gatable clock
> +
> + clock-names:
> + oneOf:
> + - items:
> + - const: core
> + - const: reg
> + - const: core
This is better expressed as:
minItems: 1
items:
- const: core
- const: reg
> +
> +
> +allOf:
> + - if:
> + properties:
> + compatible:
> + contains:
> + enum:
> + - ti,omap4-rng
> + - inside-secure,safexcel-eip76
> +
> + then:
> + required:
> + - interrupts
> +
> + - if:
> + properties:
> + compatible:
> + contains:
> + enum:
> + - inside-secure,safexcel-eip76
> +
> + then:
> + required:
> + - clocks
> +
> +
> +required:
> + - compatible
> + - reg
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + /* AM335x */
> + rng: rng@48310000 {
> + compatible = "ti,omap4-rng";
> + ti,hwmods = "rng";
> + reg = <0x48310000 0x2000>;
> + interrupts = <111>;
> + };
> + - |
> + /* SafeXcel IP-76 */
> + trng: rng@f2760000 {
> + compatible = "inside-secure,safexcel-eip76";
> + reg = <0xf2760000 0x7d>;
> + interrupts = <0 59 4>;
> + clocks = <&cpm_syscon0 1 25>;
> + };
> +
> +...
> --
> 2.17.1
>
>
