Re: [PATCH v6 01/10] dt-bindings: soc: fsl: cpm_qe: Add TSA controller

Rob Herring
2023-02-26T17:50:07Z

On Fri, Feb 17, 2023 at 03:56:36PM +0100, Herve Codina wrote:
> Add support for the time slot assigner (TSA)
> available in some PowerQUICC SoC such as MPC885
> or MPC866.
>
> Signed-off-by: Herve Codina <herve.codina@bootlin.com>
> ---
> .../bindings/soc/fsl/cpm_qe/fsl,cpm1-tsa.yaml | 215 ++++++++++++++++++
> include/dt-bindings/soc/cpm1-fsl,tsa.h | 13 ++
> 2 files changed, 228 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,cpm1-tsa.yaml
> create mode 100644 include/dt-bindings/soc/cpm1-fsl,tsa.h
>
> diff --git a/Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,cpm1-tsa.yaml b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,cpm1-tsa.yaml
> new file mode 100644
> index 000000000000..332e902bcc21
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,cpm1-tsa.yaml
> @@ -0,0 +1,215 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/soc/fsl/cpm_qe/fsl,cpm1-tsa.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: PowerQUICC CPM Time-slot assigner (TSA) controller
> +
> +maintainers:
> + - Herve Codina <herve.codina@bootlin.com>
> +
> +description:
> + The TSA is the time-slot assigner that can be found on some PowerQUICC SoC.
> + Its purpose is to route some TDM time-slots to other internal serial
> + controllers.
> +
> +properties:
> + compatible:
> + items:
> + - enum:
> + - fsl,mpc885-tsa
> + - fsl,mpc866-tsa
> + - const: fsl,cpm1-tsa
> +
> + reg:
> + items:
> + - description: SI (Serial Interface) register base
> + - description: SI RAM base
> +
> + reg-names:
> + items:
> + - const: si_regs
> + - const: si_ram
> +
> + '#address-cells':
> + const: 1
> +
> + '#size-cells':
> + const: 0
> +
> + '#fsl,serial-cells':

#foo-cells is for when there are differing foo providers which need
different number of cells. That's not the case here.

> + $ref: /schemas/types.yaml#/definitions/uint32
> + const: 1
> + description:
> + TSA consumers that use a phandle to TSA need to pass the serial identifier
> + with this phandle (defined in dt-bindings/soc/fsl,tsa.h).
> + For instance "fsl,tsa-serial = <&tsa FSL_CPM_TSA_SCC4>;".