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Date: Thu, 28 Feb 2019 11:18:34 +0800
From: Shawn Guo <shawnguo@...nel.org>
To: Anson Huang <anson.huang@....com>
Cc: "robh+dt@...nel.org" <robh+dt@...nel.org>,
"mark.rutland@....com" <mark.rutland@....com>,
"s.hauer@...gutronix.de" <s.hauer@...gutronix.de>,
"kernel@...gutronix.de" <kernel@...gutronix.de>,
"festevam@...il.com" <festevam@...il.com>,
"mturquette@...libre.com" <mturquette@...libre.com>,
"sboyd@...nel.org" <sboyd@...nel.org>,
Aisheng Dong <aisheng.dong@....com>,
Daniel Baluta <daniel.baluta@....com>,
"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
"linux-arm-kernel@...ts.infradead.org"
<linux-arm-kernel@...ts.infradead.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"linux-clk@...r.kernel.org" <linux-clk@...r.kernel.org>,
dl-linux-imx <linux-imx@....com>
Subject: Re: [PATCH V7 1/2] arm64: dts: freescale: imx8qxp: add cpu opp table
On Tue, Feb 26, 2019 at 05:17:31AM +0000, Anson Huang wrote:
> Add i.MX8QXP CPU opp table to support cpufreq.
>
> Signed-off-by: Anson Huang <Anson.Huang@....com>
> Acked-by: Viresh Kumar <viresh.kumar@...aro.org>
Prefix 'arm64: dts: imx8qxp: ' would already be clear enough. I dropped
'freescale' from there and applied patch.
> ---
> No changes since V6.
> ---
> arch/arm64/boot/dts/freescale/imx8qxp.dtsi | 30 ++++++++++++++++++++++++++++++
> 1 file changed, 30 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/freescale/imx8qxp.dtsi b/arch/arm64/boot/dts/freescale/imx8qxp.dtsi
> index 4c3dd95..41bf0ce 100644
> --- a/arch/arm64/boot/dts/freescale/imx8qxp.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8qxp.dtsi
> @@ -34,6 +34,9 @@
> reg = <0x0 0x0>;
> enable-method = "psci";
> next-level-cache = <&A35_L2>;
> + clocks = <&clk IMX_A35_CLK>;
> + operating-points-v2 = <&a35_0_opp_table>;
> + #cooling-cells = <2>;
> };
>
> A35_1: cpu@1 {
> @@ -42,6 +45,9 @@
> reg = <0x0 0x1>;
> enable-method = "psci";
> next-level-cache = <&A35_L2>;
> + clocks = <&clk IMX_A35_CLK>;
> + operating-points-v2 = <&a35_0_opp_table>;
> + #cooling-cells = <2>;
> };
>
> A35_2: cpu@2 {
> @@ -50,6 +56,9 @@
> reg = <0x0 0x2>;
> enable-method = "psci";
> next-level-cache = <&A35_L2>;
> + clocks = <&clk IMX_A35_CLK>;
> + operating-points-v2 = <&a35_0_opp_table>;
> + #cooling-cells = <2>;
> };
>
> A35_3: cpu@3 {
> @@ -58,6 +67,9 @@
> reg = <0x0 0x3>;
> enable-method = "psci";
> next-level-cache = <&A35_L2>;
> + clocks = <&clk IMX_A35_CLK>;
> + operating-points-v2 = <&a35_0_opp_table>;
> + #cooling-cells = <2>;
> };
>
> A35_L2: l2-cache0 {
> @@ -65,6 +77,24 @@
> };
> };
>
> + a35_0_opp_table: opp-table {
What does the '0' in the label mean?
Shawn
> + compatible = "operating-points-v2";
> + opp-shared;
> +
> + opp-900000000 {
> + opp-hz = /bits/ 64 <900000000>;
> + opp-microvolt = <1000000>;
> + clock-latency-ns = <150000>;
> + };
> +
> + opp-1200000000 {
> + opp-hz = /bits/ 64 <1200000000>;
> + opp-microvolt = <1100000>;
> + clock-latency-ns = <150000>;
> + opp-suspend;
> + };
> + };
> +
> gic: interrupt-controller@...00000 {
> compatible = "arm,gic-v3";
> reg = <0x0 0x51a00000 0 0x10000>, /* GIC Dist */
> --
> 2.7.4
>
>
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> linux-arm-kernel@...ts.infradead.org
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