Re: [PATCH 1/4] dt-bindings: reset: Add PDC reset binding for SDM845 SoCs

Bjorn Andersson
2018-08-21T22:08:26Z

On Fri 27 Jul 08:28 PDT 2018, Sibi Sankar wrote:

> Add SDM845 PDC (Power Domain Controller) reset controller binding
>

Even though this is currently describing only a reset controller I think
this binding better be talking about the "PDC Global" hardware.

> Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
> ---
> .../bindings/reset/qcom,pdc-reset.txt | 52 +++++++++++++++++++
> include/dt-bindings/reset/qcom,sdm845-pdc.h | 20 +++++++
> 2 files changed, 72 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/reset/qcom,pdc-reset.txt
> create mode 100644 include/dt-bindings/reset/qcom,sdm845-pdc.h
>
> diff --git a/Documentation/devicetree/bindings/reset/qcom,pdc-reset.txt b/Documentation/devicetree/bindings/reset/qcom,pdc-reset.txt

Rename this qcom,pdc-global to match the compatible, and hardware name.

> new file mode 100644
> index 000000000000..85e159962e08
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/reset/qcom,pdc-reset.txt
> @@ -0,0 +1,52 @@
> +PDC Reset Controller

PDC Global

> +======================================
> +
> +This binding describes a reset-controller found on PDC-Global(Power Domain
> +Controller) block for Qualcomm Technologies Inc SDM845 SoCs.

This looks good.

> +
> +Required properties:
> +- compatible:
> + Usage: required
> + Value type: <string>
> + Definition: must be:
> + "qcom,sdm845-pdc-global"
> +
> +- reg:
> + Usage: required
> + Value type: <prop-encoded-array>
> + Definition: must specify the base address and size of the register
> + space.
> +
> +- #reset-cells:
> + Usage: required
> + Value type: <uint>
> + Definition: must be 1; cell entry represents the reset index.
> +
> +Example:
> +
> +pdc_reset: reset-controller@b2e0000 {

This is perfectly fine, in its current form it is a reset-controller.

> + compatible = "qcom,sdm845-pdc-global";
> + reg = <0xb2e0000 0x20000>;
> + #reset-cells = <1>;
> +};
> +

Apart from this, the binding looks good!

Regards,
Bjorn