linux-kernel - Re: [PATCH v4 1/5] dt-bindings: reset: Add AOSS reset bindings for SDM845 SoCs

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Date:   Fri, 27 Apr 2018 12:24:10 +0200
From:   Philipp Zabel <p.zabel@...gutronix.de>
To:     Sibi Sankar <sibis@...eaurora.org>, bjorn.andersson@...aro.org,
        robh+dt@...nel.org
Cc:     linux-remoteproc@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, georgi.djakov@...aro.org,
        jassisinghbrar@...il.com, ohad@...ery.com, mark.rutland@....com,
        kyan@...eaurora.org, sricharan@...eaurora.org,
        akdwived@...eaurora.org, linux-arm-msm@...r.kernel.org,
        tsoni@...eaurora.org
Subject: Re: [PATCH v4 1/5] dt-bindings: reset: Add AOSS reset bindings for
 SDM845 SoCs

Hi Sibi,

On Wed, 2018-04-25 at 20:38 +0530, Sibi Sankar wrote:
> Add SDM845 AOSS (always on subsystem) reset controller binding
> 
> Signed-off-by: Sibi Sankar <sibis@...eaurora.org>
> ---
>  .../bindings/reset/qcom,aoss-reset.txt        | 52 +++++++++++++++++++
>  include/dt-bindings/reset/qcom,sdm845-aoss.h  | 17 ++++++
>  2 files changed, 69 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/reset/qcom,aoss-reset.txt
>  create mode 100644 include/dt-bindings/reset/qcom,sdm845-aoss.h
> 
> diff --git a/Documentation/devicetree/bindings/reset/qcom,aoss-reset.txt b/Documentation/devicetree/bindings/reset/qcom,aoss-reset.txt
> new file mode 100644
> index 000000000000..e5201de9a314
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/reset/qcom,aoss-reset.txt
> @@ -0,0 +1,52 @@
> +Qualcomm AOSS Reset Controller
> +======================================
> +
> +This binding describes a reset-controller found on AOSS (always on subsystem)
> +for Qualcomm SDM845 SoCs.
> +
> +Required properties:
> +- compatible:
> +	Usage: required
> +	Value type: <string>
> +	Definition: must be:
> +		    "qcom,sdm845-aoss-reset"
> +
> +- 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:
> +
> +aoss_reset: qcom,reset-controller@...0100 {

The node name should be "reset-controller", not "qcom,reset-controller"

> +	compatible = "qcom,sdm845-aoss-reset";
> +	reg = <0xc2b0000 0x21000>;

The address here should match the address part of the node name above.

Apart from those two nitpicks, the binding looks good to me.

regards
Philipp