Re: [PATCH] arm64: dts: hi3660: improve pmu description

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On 2017/11/8 23:55, Rob Herring wrote:
On Wed, Nov 8, 2017 at 2:59 AM, Xu YiPing <xuyiping@xxxxxxxxxxxxx> wrote:
cortex a73 pmu is supported, use it instead of armpmu-v3

The subject is misleading and you need a better commit message. Why is
this change needed? You are going from 1 to 2 devices.

Missing your S-o-B, too.

---
 arch/arm64/boot/dts/hisilicon/hi3660.dtsi | 22 +++++++++++++---------
 1 file changed, 13 insertions(+), 9 deletions(-)

diff --git a/arch/arm64/boot/dts/hisilicon/hi3660.dtsi b/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
index 13ae69f..f638897 100644
--- a/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
+++ b/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
@@ -203,21 +203,25 @@
                                         IRQ_TYPE_LEVEL_HIGH)>;
        };

-       pmu {
-               compatible = "arm,armv8-pmuv3";
+       pmu_a53 {

Don't use '_' in node names. Building with W=2 will tell you this.

OK, i'll modify it

+               compatible = "arm,cortex-a53-pmu";
                interrupts = <GIC_SPI 24 IRQ_TYPE_LEVEL_HIGH>,
                             <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>,
                             <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>,
-                            <GIC_SPI 27 IRQ_TYPE_LEVEL_HIGH>,
-                            <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
-                            <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>,
-                            <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>,
-                            <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>;
+                            <GIC_SPI 27 IRQ_TYPE_LEVEL_HIGH>;
                interrupt-affinity = <&cpu0>,
                                     <&cpu1>,
                                     <&cpu2>,
-                                    <&cpu3>,
-                                    <&cpu4>,
+                                    <&cpu3>;
+       };
+
+       pmu_a73 {
+               compatible = "arm,cortex-a73-pmu";
+               interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
+                            <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>,
+                            <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>,
+                            <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>;
+               interrupt-affinity = <&cpu4>,
                                     <&cpu5>,
                                     <&cpu6>,
                                     <&cpu7>;
--
2.7.4


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