linux-kernel - Re: [PATCH] ARM: dts: msm8974: Add definitions for QCE & cryptobam

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Message-ID: <32148db3-74b8-c81f-9688-b286d9516b9d@mm-sol.com>
Date:   Wed, 7 Sep 2016 16:09:47 +0300
From:   Stanimir Varbanov <svarbanov@...sol.com>
To:     Iaroslav Gridin <voker57@...il.com>, andy.gross@...aro.org
Cc:     david.brown@...aro.org, robh+dt@...nel.org, mark.rutland@....com,
        linux@...linux.org.uk, linux-arm-msm@...r.kernel.org,
        linux-soc@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ARM: dts: msm8974: Add definitions for QCE & cryptobam

Hi Iaroslav,

On 08/30/2016 06:37 PM, Iaroslav Gridin wrote:
> From: Voker57 <voker57@...il.com>
> 
> Add device tree definitions for Qualcomm Cryptography engine and its BAM
> Signed-off-by: Iaroslav Gridin <voker57@...il.com>
> ---
>  arch/arm/boot/dts/qcom-msm8974.dtsi | 42 +++++++++++++++++++++++++++++++++++++
>  1 file changed, 42 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/qcom-msm8974.dtsi b/arch/arm/boot/dts/qcom-msm8974.dtsi
> index 561d4d1..c0da739 100644
> --- a/arch/arm/boot/dts/qcom-msm8974.dtsi
> +++ b/arch/arm/boot/dts/qcom-msm8974.dtsi
> @@ -287,6 +287,48 @@
>  			reg = <0xf9011000 0x1000>;
>  		};
>  
> +		cryptobam: dma@...44000 {
> +			compatible = "qcom,bam-v1.4.0";
> +			reg = <0xfd444000 0x15000>;
> +			interrupts = <0 236 0>;

should be

interrupts = <GIC_SPI 236 IRQ_NONE>;

> +			clocks = <&gcc GCC_CE2_AHB_CLK>,
> +				 <&gcc GCC_CE2_AXI_CLK>,
> +				 <&gcc GCC_CE2_CLK>;
> +			clock-names = "bam_clk", "axi_clk", "core_clk";
> +			#dma-cells = <1>;
> +			qcom,ee = <1>;
> +			qcom,controlled-remotely;
> +			};

indentation please.

> +
> +		qcom,qcrypto@...40000 {
> +			compatible = "qcom,crypto-v5.1";
> +			reg = <0xfd45a000 0x6000>;
> +			reg-names = "crypto-base";
> +			interrupts = <0 236 0>;
> +			qcom,bam-pipe-pair = <2>;
> +			qcom,ce-hw-instance = <1>;
> +			qcom,ce-device = <0>;

You are getting those 3 properties from qcom downstream kernel, so they
are not relevant to qce in mainline kernel, please drop them.

> +			clocks = <&gcc GCC_CE2_CLK>,
> +				 <&gcc GCC_CE2_AHB_CLK>,
> +				 <&gcc GCC_CE2_AXI_CLK>,
> +				 <&gcc CE2_CLK_SRC>;
> +
> +			dmas = <&cryptobam 2>, <&cryptobam 3>;
> +			dma-names = "rx", "tx";
> +			clock-names = "core", "iface", "bus", "core_src";

from here to ...
> +			qcom,clk-mgmt-sus-res;
> +			qcom,msm-bus,name = "qcrypto-noc";
> +
> +			qcom,msm-bus,num-cases = <2>;
> +			qcom,msm-bus,num-paths = <1>;
> +			qcom,use-sw-aes-cbc-ecb-ctr-algo;
> +			qcom,use-sw-aes-xts-algo;
> +			qcom,use-sw-ahash-algo;
> +			qcom,msm-bus,vectors-KBps = <56 512 0 0>,
> +						    <56 512 3936000 393600>;

... here, please drop these properties they are no parsed and useful.

regards,
Stan