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Date: Mon, 4 Jul 2022 23:57:44 -0500
From: Samuel Holland <samuel@...lland.org>
To: qianfanguijin@....com
Cc: linux-sunxi@...ts.linux.dev, Rob Herring <robh+dt@...nel.org>,
Maxime Ripard <mripard@...nel.org>,
Chen-Yu Tsai <wens@...e.org>,
Jernej Skrabec <jernej.skrabec@...il.com>,
"Rafael J . Wysocki" <rafael@...nel.org>,
Viresh Kumar <viresh.kumar@...aro.org>,
devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org
Subject: Re: [PATCH v5 2/3] ARM: dts: sun8i-r40: add opp table for cpu
On 5/16/22 8:36 PM, qianfanguijin@....com wrote:
> From: qianfan Zhao <qianfanguijin@....com>
>
> OPP table value is get from allwinner lichee linux-3.10 kernel driver
>
> Signed-off-by: qianfan Zhao <qianfanguijin@....com>
> ---
> .../boot/dts/sun8i-r40-bananapi-m2-ultra.dts | 1 +
> arch/arm/boot/dts/sun8i-r40-cpu-opp.dtsi | 52 +++++++++++++++++++
> arch/arm/boot/dts/sun8i-r40-feta40i.dtsi | 1 +
> arch/arm/boot/dts/sun8i-r40.dtsi | 8 +++
> arch/arm/boot/dts/sun8i-t3-cqa3t-bv3.dts | 1 +
> .../boot/dts/sun8i-v40-bananapi-m2-berry.dts | 1 +
> 6 files changed, 64 insertions(+)
> create mode 100644 arch/arm/boot/dts/sun8i-r40-cpu-opp.dtsi
>
> diff --git a/arch/arm/boot/dts/sun8i-r40-bananapi-m2-ultra.dts b/arch/arm/boot/dts/sun8i-r40-bananapi-m2-ultra.dts
> index 4f30018ec4a2..28197bbcb1d5 100644
> --- a/arch/arm/boot/dts/sun8i-r40-bananapi-m2-ultra.dts
> +++ b/arch/arm/boot/dts/sun8i-r40-bananapi-m2-ultra.dts
> @@ -43,6 +43,7 @@
>
> /dts-v1/;
> #include "sun8i-r40.dtsi"
> +#include "sun8i-r40-cpu-opp.dtsi"
>
> #include <dt-bindings/gpio/gpio.h>
>
> diff --git a/arch/arm/boot/dts/sun8i-r40-cpu-opp.dtsi b/arch/arm/boot/dts/sun8i-r40-cpu-opp.dtsi
> new file mode 100644
> index 000000000000..4faa22d3bac8
> --- /dev/null
> +++ b/arch/arm/boot/dts/sun8i-r40-cpu-opp.dtsi
> @@ -0,0 +1,52 @@
> +/{
> + cpu0_opp_table: opp_table0 {
The binding requires the node name to match a specific regex. The patch as
written does not validate:
arch/arm/boot/dts/sun8i-t3-cqa3t-bv3.dtb: opp_table0: $nodename:0: 'opp_table0'
does not match '^opp-table(-[a-z0-9]+)?$'
From schema: Documentation/devicetree/bindings/opp/opp-v2.yaml
With the node renamed to "opp-table-cpu" (following H3), the devicetrees pass
validation. So with that one change:
Reviewed-by: Samuel Holland <samuel@...lland.org>
Tested-by: Samuel Holland <samuel@...lland.org>
Regards,
Samuel
> + compatible = "operating-points-v2";
> + opp-shared;
> +
> + opp-720000000 {
> + opp-hz = /bits/ 64 <720000000>;
> + opp-microvolt = <1000000 1000000 1300000>;
> + clock-latency-ns = <2000000>;
> + };
> +
> + opp-912000000 {
> + opp-hz = /bits/ 64 <912000000>;
> + opp-microvolt = <1100000 1100000 1300000>;
> + clock-latency-ns = <2000000>;
> + };
> +
> + opp-1008000000 {
> + opp-hz = /bits/ 64 <1008000000>;
> + opp-microvolt = <1160000 1160000 1300000>;
> + clock-latency-ns = <2000000>;
> + };
> +
> + opp-1104000000 {
> + opp-hz = /bits/ 64 <1104000000>;
> + opp-microvolt = <1240000 1240000 1300000>;
> + clock-latency-ns = <2000000>;
> + };
> +
> + opp-1200000000 {
> + opp-hz = /bits/ 64 <1200000000>;
> + opp-microvolt = <1300000 1300000 1300000>;
> + clock-latency-ns = <2000000>;
> + };
> + };
> +};
> +
> +&cpu0 {
> + operating-points-v2 = <&cpu0_opp_table>;
> +};
> +
> +&cpu1 {
> + operating-points-v2 = <&cpu0_opp_table>;
> +};
> +
> +&cpu2 {
> + operating-points-v2 = <&cpu0_opp_table>;
> +};
> +
> +&cpu3 {
> + operating-points-v2 = <&cpu0_opp_table>;
> +};
> diff --git a/arch/arm/boot/dts/sun8i-r40-feta40i.dtsi b/arch/arm/boot/dts/sun8i-r40-feta40i.dtsi
> index b872b51a346d..9f39b5a2bb35 100644
> --- a/arch/arm/boot/dts/sun8i-r40-feta40i.dtsi
> +++ b/arch/arm/boot/dts/sun8i-r40-feta40i.dtsi
> @@ -5,6 +5,7 @@
> // Copyright (C) 2017 Icenowy Zheng <icenowy@...c.io>
>
> #include "sun8i-r40.dtsi"
> +#include "sun8i-r40-cpu-opp.dtsi"
>
> &cpu0 {
> cpu-supply = <®_dcdc2>;
> diff --git a/arch/arm/boot/dts/sun8i-r40.dtsi b/arch/arm/boot/dts/sun8i-r40.dtsi
> index 291f4784e86c..ae2a5ebd9924 100644
> --- a/arch/arm/boot/dts/sun8i-r40.dtsi
> +++ b/arch/arm/boot/dts/sun8i-r40.dtsi
> @@ -84,24 +84,32 @@ cpu0: cpu@0 {
> compatible = "arm,cortex-a7";
> device_type = "cpu";
> reg = <0>;
> + clocks = <&ccu CLK_CPU>;
> + clock-names = "cpu";
> };
>
> cpu1: cpu@1 {
> compatible = "arm,cortex-a7";
> device_type = "cpu";
> reg = <1>;
> + clocks = <&ccu CLK_CPU>;
> + clock-names = "cpu";
> };
>
> cpu2: cpu@2 {
> compatible = "arm,cortex-a7";
> device_type = "cpu";
> reg = <2>;
> + clocks = <&ccu CLK_CPU>;
> + clock-names = "cpu";
> };
>
> cpu3: cpu@3 {
> compatible = "arm,cortex-a7";
> device_type = "cpu";
> reg = <3>;
> + clocks = <&ccu CLK_CPU>;
> + clock-names = "cpu";
> };
> };
>
> diff --git a/arch/arm/boot/dts/sun8i-t3-cqa3t-bv3.dts b/arch/arm/boot/dts/sun8i-t3-cqa3t-bv3.dts
> index 0eb1990742ff..9f472521f4a4 100644
> --- a/arch/arm/boot/dts/sun8i-t3-cqa3t-bv3.dts
> +++ b/arch/arm/boot/dts/sun8i-t3-cqa3t-bv3.dts
> @@ -45,6 +45,7 @@
>
> /dts-v1/;
> #include "sun8i-r40.dtsi"
> +#include "sun8i-r40-cpu-opp.dtsi"
>
> #include <dt-bindings/gpio/gpio.h>
>
> diff --git a/arch/arm/boot/dts/sun8i-v40-bananapi-m2-berry.dts b/arch/arm/boot/dts/sun8i-v40-bananapi-m2-berry.dts
> index fdf8bd12faaa..434871040aca 100644
> --- a/arch/arm/boot/dts/sun8i-v40-bananapi-m2-berry.dts
> +++ b/arch/arm/boot/dts/sun8i-v40-bananapi-m2-berry.dts
> @@ -42,6 +42,7 @@
>
> /dts-v1/;
> #include "sun8i-r40.dtsi"
> +#include "sun8i-r40-cpu-opp.dtsi"
>
> #include <dt-bindings/gpio/gpio.h>
>
>
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