[linux-yocto] [PATCH] arm64: dts: r8a7795: Add CPUIdle support for all CPU core
Bruce Ashfield
bruce.ashfield at gmail.com
Tue Oct 22 19:58:19 PDT 2019
On Tue, Oct 22, 2019 at 10:57 PM Bruce Ashfield
<bruce.ashfield at gmail.com> wrote:
>
> This should already be on the branches:
>
.. and I forgot the commit id:
c93bf81feabf89b5ee77838d3bb62825d04dab09
Bruce
> Author: Takeshi Kihara <takeshi.kihara.df at renesas.com>
> Date: Tue Oct 15 13:46:44 2019 +0800
>
> arm64: dts: r8a7795: Add CPUIdle support for all CPU core
>
> commit 3c3b44c752c4eef9a29694f4262934445c5f5da9 from
> git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas-bsp.git
>
> This patch enables CPUIdle (Core shutdown) support for R-Car H3.
>
> Signed-off-by: Takeshi Kihara <takeshi.kihara.df at renesas.com>
> Signed-off-by: Meng Li <Meng.Li at windriver.com>
> Signed-off-by: Bruce Ashfield <bruce.ashfield at gmail.com>
>
> :100644 100644 097538cc4b1f 7596216409cd M
> arch/arm64/boot/dts/renesas/r8a7795.dtsi
>
> On Tue, Oct 22, 2019 at 10:47 PM <Meng.Li at windriver.com> wrote:
> >
> > From: Takeshi Kihara <takeshi.kihara.df at renesas.com>
> >
> > commit 3c3b44c752c4eef9a29694f4262934445c5f5da9 from
> > git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas-bsp.git
> >
> > This patch enables CPUIdle (Core shutdown) support for R-Car H3.
> >
> > Signed-off-by: Takeshi Kihara <takeshi.kihara.df at renesas.com>
> > Signed-off-by: Meng Li <Meng.Li at windriver.com>
> > ---
> > arch/arm64/boot/dts/renesas/r8a7795.dtsi | 32 ++++++++++++++++++++++++++++++++
> > 1 file changed, 32 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/renesas/r8a7795.dtsi b/arch/arm64/boot/dts/renesas/r8a7795.dtsi
> > index e8c3d5f..7fe7428 100644
> > --- a/arch/arm64/boot/dts/renesas/r8a7795.dtsi
> > +++ b/arch/arm64/boot/dts/renesas/r8a7795.dtsi
> > @@ -123,6 +123,7 @@
> > power-domains = <&sysc R8A7795_PD_CA57_CPU0>;
> > next-level-cache = <&L2_CA57>;
> > enable-method = "psci";
> > + cpu-idle-states = <&CPU_SLEEP_0>;
> > clocks = <&cpg CPG_CORE R8A7795_CLK_Z>;
> > operating-points-v2 = <&cluster0_opp>;
> > capacity-dmips-mhz = <1024>;
> > @@ -135,6 +136,7 @@
> > power-domains = <&sysc R8A7795_PD_CA57_CPU1>;
> > next-level-cache = <&L2_CA57>;
> > enable-method = "psci";
> > + cpu-idle-states = <&CPU_SLEEP_0>;
> > clocks = <&cpg CPG_CORE R8A7795_CLK_Z>;
> > operating-points-v2 = <&cluster0_opp>;
> > capacity-dmips-mhz = <1024>;
> > @@ -147,6 +149,7 @@
> > power-domains = <&sysc R8A7795_PD_CA57_CPU2>;
> > next-level-cache = <&L2_CA57>;
> > enable-method = "psci";
> > + cpu-idle-states = <&CPU_SLEEP_0>;
> > clocks = <&cpg CPG_CORE R8A7795_CLK_Z>;
> > operating-points-v2 = <&cluster0_opp>;
> > capacity-dmips-mhz = <1024>;
> > @@ -159,6 +162,7 @@
> > power-domains = <&sysc R8A7795_PD_CA57_CPU3>;
> > next-level-cache = <&L2_CA57>;
> > enable-method = "psci";
> > + cpu-idle-states = <&CPU_SLEEP_0>;
> > clocks = <&cpg CPG_CORE R8A7795_CLK_Z>;
> > operating-points-v2 = <&cluster0_opp>;
> > capacity-dmips-mhz = <1024>;
> > @@ -171,6 +175,7 @@
> > power-domains = <&sysc R8A7795_PD_CA53_CPU0>;
> > next-level-cache = <&L2_CA53>;
> > enable-method = "psci";
> > + cpu-idle-states = <&CPU_SLEEP_1>;
> > clocks = <&cpg CPG_CORE R8A7795_CLK_Z2>;
> > operating-points-v2 = <&cluster1_opp>;
> > capacity-dmips-mhz = <535>;
> > @@ -182,6 +187,7 @@
> > power-domains = <&sysc R8A7795_PD_CA53_CPU1>;
> > next-level-cache = <&L2_CA53>;
> > enable-method = "psci";
> > + cpu-idle-states = <&CPU_SLEEP_1>;
> > clocks = <&cpg CPG_CORE R8A7795_CLK_Z2>;
> > operating-points-v2 = <&cluster1_opp>;
> > capacity-dmips-mhz = <535>;
> > @@ -193,6 +199,7 @@
> > power-domains = <&sysc R8A7795_PD_CA53_CPU2>;
> > next-level-cache = <&L2_CA53>;
> > enable-method = "psci";
> > + cpu-idle-states = <&CPU_SLEEP_1>;
> > clocks = <&cpg CPG_CORE R8A7795_CLK_Z2>;
> > operating-points-v2 = <&cluster1_opp>;
> > capacity-dmips-mhz = <535>;
> > @@ -204,6 +211,7 @@
> > power-domains = <&sysc R8A7795_PD_CA53_CPU3>;
> > next-level-cache = <&L2_CA53>;
> > enable-method = "psci";
> > + cpu-idle-states = <&CPU_SLEEP_1>;
> > clocks = <&cpg CPG_CORE R8A7795_CLK_Z2>;
> > operating-points-v2 = <&cluster1_opp>;
> > capacity-dmips-mhz = <535>;
> > @@ -221,6 +229,30 @@
> > cache-unified;
> > cache-level = <2>;
> > };
> > +
> > + idle-states {
> > + entry-method = "psci";
> > +
> > + CPU_SLEEP_0: cpu-sleep-0 {
> > + compatible = "arm,idle-state";
> > + arm,psci-suspend-param = <0x0010000>;
> > + local-timer-stop;
> > + entry-latency-us = <400>;
> > + exit-latency-us = <500>;
> > + min-residency-us = <4000>;
> > + status = "okay";
> > + };
> > +
> > + CPU_SLEEP_1: cpu-sleep-1 {
> > + compatible = "arm,idle-state";
> > + arm,psci-suspend-param = <0x0010000>;
> > + local-timer-stop;
> > + entry-latency-us = <700>;
> > + exit-latency-us = <700>;
> > + min-residency-us = <5000>;
> > + status = "okay";
> > + };
> > + };
> > };
> >
> > extal_clk: extal {
> > --
> > 2.7.4
> >
>
>
> --
> - Thou shalt not follow the NULL pointer, for chaos and madness await
> thee at its end
> - "Use the force Harry" - Gandalf, Star Trek II
--
- Thou shalt not follow the NULL pointer, for chaos and madness await
thee at its end
- "Use the force Harry" - Gandalf, Star Trek II
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