[PATCH] dt-bindings: arm: sunxi: update H2+/H3 cpu clocks

Wilken Gottwalt
2020-09-03T10:16:41Z

Change H2+/H3 clocks to 8 steps from 528 MHz up to 1200 MHz to support a
more fine-grained powersave setup. The SoCs are made for 1296 MHz, so
these clocks are still in a safe range. Tested on a NanoPi Duo and
OrangePi Zero.

Signed-off-by: Wilken Gottwalt <wilken.gottwalt@mailbox.org>
---
arch/arm/boot/dts/sun8i-h3.dtsi | 34 +++++++++++++++++++++++++++++++--
1 file changed, 32 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/sun8i-h3.dtsi b/arch/arm/boot/dts/sun8i-h3.dtsi
index 4e89701df91f..5517fcc02b7d 100644
--- a/arch/arm/boot/dts/sun8i-h3.dtsi
+++ b/arch/arm/boot/dts/sun8i-h3.dtsi
@@ -48,23 +48,53 @@ cpu0_opp_table: opp_table0 {
compatible = "operating-points-v2";
opp-shared;

- opp-648000000 {
- opp-hz = /bits/ 64 <648000000>;
+ opp-528000000 {
+ opp-hz = /bits/ 64 <528000000>;
+ opp-microvolt = <1020000 1020000 1300000>;
+ clock-latency-ns = <244144>; /* 8 32k periods */
+ };
+
+ opp-624000000 {
+ opp-hz = /bits/ 64 <624000000>;
opp-microvolt = <1040000 1040000 1300000>;
clock-latency-ns = <244144>; /* 8 32k periods */
};

+ opp-720000000 {
+ opp-hz = /bits/ 64 <720000000>;
+ opp-microvolt = <1060000 1060000 1300000>;
+ clock-latency-ns = <244144>; /* 8 32k periods */
+ };
+
opp-816000000 {
opp-hz = /bits/ 64 <816000000>;
opp-microvolt = <1100000 1100000 1300000>;
clock-latency-ns = <244144>; /* 8 32k periods */
};

+ opp-912000000 {
+ opp-hz = /bits/ 64 <912000000>;
+ opp-microvolt = <1140000 1140000 1300000>;
+ clock-latency-ns = <244144>; /* 8 32k periods */
+ };
+
opp-1008000000 {
opp-hz = /bits/ 64 <1008000000>;
opp-microvolt = <1200000 1200000 1300000>;
clock-latency-ns = <244144>; /* 8 32k periods */
};
+
+ opp-1104000000 {
+ opp-hz = /bits/ 64 <1104000000>;
+ opp-microvolt = <1240000 1240000 1300000>;
+ clock-latency-ns = <244144>; /* 8 32k periods */
+ };
+
+ opp-1200000000 {
+ opp-hz = /bits/ 64 <1200000000>;
+ opp-microvolt = <1300000 1300000 1300000>;
+ clock-latency-ns = <244144>; /* 8 32k periods */
+ };
};

cpus {
--
2.28.0