linux-kernel - Re: [PATCH 1/2] dt-bindings: nvmem: add binding for Rockchip OTP controller

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Message-ID: <2431603.e1tpym8sWD@diego>
Date:   Mon, 07 Oct 2019 15:26:07 +0200
From:   Heiko Stübner <heiko@...ech.de>
To:     srinivas.kandagatla@...aro.org, robh+dt@...nel.org
Cc:     mark.rutland@....com, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org,
        christoph.muellner@...obroma-systems.com
Subject: Re: [PATCH 1/2] dt-bindings: nvmem: add binding for Rockchip OTP controller

Hi Rob,

Am Mittwoch, 25. September 2019, 20:49:56 CEST schrieb Heiko Stuebner:
> Newer Rockchip SoCs use a different IP for accessing special one-
> time-programmable memory, so add a binding for these controllers.
> 
> Signed-off-by: Heiko Stuebner <heiko@...ech.de>

Srinivas seems to wait for an Ack on the DT-Patch - see comment on patch2.
As this all looks pretty standard, any objections to the binding?

Thanks
Heiko

> ---
>  .../bindings/nvmem/rockchip-otp.txt           | 25 +++++++++++++++++++
>  1 file changed, 25 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/nvmem/rockchip-otp.txt
> 
> diff --git a/Documentation/devicetree/bindings/nvmem/rockchip-otp.txt b/Documentation/devicetree/bindings/nvmem/rockchip-otp.txt
> new file mode 100644
> index 000000000000..40f649f7c2e5
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/nvmem/rockchip-otp.txt
> @@ -0,0 +1,25 @@
> +Rockchip internal OTP (One Time Programmable) memory device tree bindings
> +
> +Required properties:
> +- compatible: Should be one of the following.
> +  - "rockchip,px30-otp" - for PX30 SoCs.
> +  - "rockchip,rk3308-otp" - for RK3308 SoCs.
> +- reg: Should contain the registers location and size
> +- clocks: Must contain an entry for each entry in clock-names.
> +- clock-names: Should be "otp", "apb_pclk" and "phy".
> +- resets: Must contain an entry for each entry in reset-names.
> +  See ../../reset/reset.txt for details.
> +- reset-names: Should be "phy".
> +
> +See nvmem.txt for more information.
> +
> +Example:
> +	otp: otp@...90000 {
> +		compatible = "rockchip,px30-otp";
> +		reg = <0x0 0xff290000 0x0 0x4000>;
> +		#address-cells = <1>;
> +		#size-cells = <1>;
> +		clocks = <&cru SCLK_OTP_USR>, <&cru PCLK_OTP_NS>,
> +			 <&cru PCLK_OTP_PHY>;
> +		clock-names = "otp", "apb_pclk", "phy";
> +	};
>