| Message ID | 20190507074454.41589-1-ran.wang_1@nxp.com (mailing list archive) |
|---|---|
| State | Mainlined, archived |
| Commit | 53f2ac9d3aa881ed419054076042898b77c27ee4 |
| Headers | show |
| Series | arm64: dts: ls1028a: Fix CPU idle fail. | expand |
On Tue, May 07, 2019 at 07:43:37AM +0000, Ran Wang wrote: > PSCI spec define 1st parameter's bit 16 of function CPU_SUSPEND to > indicate CPU State Type: 0 for standby, 1 for power down. In this > case, we want to select standby for CPU idle feature. But current > setting wrongly select power down and cause CPU SUSPEND fail every > time. Need this fix. > > Signed-off-by: Ran Wang <ran.wang_1@nxp.com> Do we need a Fixes tag for this? Shawn > --- > arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi | 18 +++++++++--------- > 1 files changed, 9 insertions(+), 9 deletions(-) > > diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi > index b045812..bf7f845 100644 > --- a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi > +++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi > @@ -28,7 +28,7 @@ > enable-method = "psci"; > clocks = <&clockgen 1 0>; > next-level-cache = <&l2>; > - cpu-idle-states = <&CPU_PH20>; > + cpu-idle-states = <&CPU_PW20>; > }; > > cpu1: cpu@1 { > @@ -38,7 +38,7 @@ > enable-method = "psci"; > clocks = <&clockgen 1 0>; > next-level-cache = <&l2>; > - cpu-idle-states = <&CPU_PH20>; > + cpu-idle-states = <&CPU_PW20>; > }; > > l2: l2-cache { > @@ -53,13 +53,13 @@ > */ > entry-method = "arm,psci"; > > - CPU_PH20: cpu-ph20 { > - compatible = "arm,idle-state"; > - idle-state-name = "PH20"; > - arm,psci-suspend-param = <0x00010000>; > - entry-latency-us = <1000>; > - exit-latency-us = <1000>; > - min-residency-us = <3000>; > + CPU_PW20: cpu-pw20 { > + compatible = "arm,idle-state"; > + idle-state-name = "PW20"; > + arm,psci-suspend-param = <0x0>; > + entry-latency-us = <2000>; > + exit-latency-us = <2000>; > + min-residency-us = <6000>; > }; > }; > > -- > 1.7.1 >
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi index b045812..bf7f845 100644 --- a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi +++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi @@ -28,7 +28,7 @@ enable-method = "psci"; clocks = <&clockgen 1 0>; next-level-cache = <&l2>; - cpu-idle-states = <&CPU_PH20>; + cpu-idle-states = <&CPU_PW20>; }; cpu1: cpu@1 { @@ -38,7 +38,7 @@ enable-method = "psci"; clocks = <&clockgen 1 0>; next-level-cache = <&l2>; - cpu-idle-states = <&CPU_PH20>; + cpu-idle-states = <&CPU_PW20>; }; l2: l2-cache { @@ -53,13 +53,13 @@ */ entry-method = "arm,psci"; - CPU_PH20: cpu-ph20 { - compatible = "arm,idle-state"; - idle-state-name = "PH20"; - arm,psci-suspend-param = <0x00010000>; - entry-latency-us = <1000>; - exit-latency-us = <1000>; - min-residency-us = <3000>; + CPU_PW20: cpu-pw20 { + compatible = "arm,idle-state"; + idle-state-name = "PW20"; + arm,psci-suspend-param = <0x0>; + entry-latency-us = <2000>; + exit-latency-us = <2000>; + min-residency-us = <6000>; }; };
PSCI spec define 1st parameter's bit 16 of function CPU_SUSPEND to indicate CPU State Type: 0 for standby, 1 for power down. In this case, we want to select standby for CPU idle feature. But current setting wrongly select power down and cause CPU SUSPEND fail every time. Need this fix. Signed-off-by: Ran Wang <ran.wang_1@nxp.com> --- arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi | 18 +++++++++--------- 1 files changed, 9 insertions(+), 9 deletions(-)