[PATCH 1/2] arm64: dts: allwinner: h6: add voltage range to OPP table

[Clément Péron]

Some boards have a fixed regulator and can't reach the voltage set
by the OPP table.

Add a range where the minimal voltage is the target and the maximal
voltage is 1.2V.

Suggested-by: Ondřej Jirman <meg...@megous.com>
Signed-off-by: Clément Péron <peron...@gmail.com>
---
.../boot/dts/allwinner/sun50i-h6-cpu-opp.dtsi | 60 +++++++++----------
1 file changed, 30 insertions(+), 30 deletions(-)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6-cpu-opp.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h6-cpu-opp.dtsi
index dcb789519797..1a5eddc5a40f 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h6-cpu-opp.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-cpu-opp.dtsi
@@ -12,90 +12,90 @@
clock-latency-ns = <244144>; /* 8 32k periods */
opp-hz = /bits/ 64 <480000000>;

- opp-microvolt-speed0 = <880000>;
- opp-microvolt-speed1 = <820000>;
- opp-microvolt-speed2 = <820000>;
+ opp-microvolt-speed0 = <880000 880000 1200000>;
+ opp-microvolt-speed1 = <820000 820000 1200000>;
+ opp-microvolt-speed2 = <820000 820000 1200000>;
};

opp@720000000 {
clock-latency-ns = <244144>; /* 8 32k periods */
opp-hz = /bits/ 64 <720000000>;

- opp-microvolt-speed0 = <880000>;
- opp-microvolt-speed1 = <820000>;
- opp-microvolt-speed2 = <820000>;
+ opp-microvolt-speed0 = <880000 880000 1200000>;
+ opp-microvolt-speed1 = <820000 820000 1200000>;
+ opp-microvolt-speed2 = <820000 820000 1200000>;
};

opp@816000000 {
clock-latency-ns = <244144>; /* 8 32k periods */
opp-hz = /bits/ 64 <816000000>;

- opp-microvolt-speed0 = <880000>;
- opp-microvolt-speed1 = <820000>;
- opp-microvolt-speed2 = <820000>;
+ opp-microvolt-speed0 = <880000 880000 1200000>;
+ opp-microvolt-speed1 = <820000 820000 1200000>;
+ opp-microvolt-speed2 = <820000 820000 1200000>;
};

opp@888000000 {
clock-latency-ns = <244144>; /* 8 32k periods */
opp-hz = /bits/ 64 <888000000>;

- opp-microvolt-speed0 = <880000>;
- opp-microvolt-speed1 = <820000>;
- opp-microvolt-speed2 = <820000>;
+ opp-microvolt-speed0 = <880000 880000 1200000>;
+ opp-microvolt-speed1 = <820000 820000 1200000>;
+ opp-microvolt-speed2 = <820000 820000 1200000>;
};

opp@1080000000 {
clock-latency-ns = <244144>; /* 8 32k periods */
opp-hz = /bits/ 64 <1080000000>;

- opp-microvolt-speed0 = <940000>;
- opp-microvolt-speed1 = <880000>;
- opp-microvolt-speed2 = <880000>;
+ opp-microvolt-speed0 = <940000 940000 1200000>;
+ opp-microvolt-speed1 = <880000 880000 1200000>;
+ opp-microvolt-speed2 = <880000 880000 1200000>;
};

opp@1320000000 {
clock-latency-ns = <244144>; /* 8 32k periods */
opp-hz = /bits/ 64 <1320000000>;

- opp-microvolt-speed0 = <1000000>;
- opp-microvolt-speed1 = <940000>;
- opp-microvolt-speed2 = <940000>;
+ opp-microvolt-speed0 = <1000000 1000000 1200000>;
+ opp-microvolt-speed1 = <940000 940000 1200000>;
+ opp-microvolt-speed2 = <940000 940000 1200000>;
};

opp@1488000000 {
clock-latency-ns = <244144>; /* 8 32k periods */
opp-hz = /bits/ 64 <1488000000>;

- opp-microvolt-speed0 = <1060000>;
- opp-microvolt-speed1 = <1000000>;
- opp-microvolt-speed2 = <1000000>;
+ opp-microvolt-speed0 = <1060000 1060000 1200000>;
+ opp-microvolt-speed1 = <1000000 1000000 1200000>;
+ opp-microvolt-speed2 = <1000000 1000000 1200000>;
};

opp@1608000000 {
clock-latency-ns = <244144>; /* 8 32k periods */
opp-hz = /bits/ 64 <1608000000>;

- opp-microvolt-speed0 = <1090000>;
- opp-microvolt-speed1 = <1030000>;
- opp-microvolt-speed2 = <1030000>;
+ opp-microvolt-speed0 = <1090000 1090000 1200000>;
+ opp-microvolt-speed1 = <1030000 1030000 1200000>;
+ opp-microvolt-speed2 = <1030000 1030000 1200000>;
};

opp@1704000000 {
clock-latency-ns = <244144>; /* 8 32k periods */
opp-hz = /bits/ 64 <1704000000>;

- opp-microvolt-speed0 = <1120000>;
- opp-microvolt-speed1 = <1060000>;
- opp-microvolt-speed2 = <1060000>;
+ opp-microvolt-speed0 = <1120000 1120000 1200000>;
+ opp-microvolt-speed1 = <1060000 1060000 1200000>;
+ opp-microvolt-speed2 = <1060000 1060000 1200000>;
};

opp@1800000000 {
clock-latency-ns = <244144>; /* 8 32k periods */
opp-hz = /bits/ 64 <1800000000>;

- opp-microvolt-speed0 = <1160000>;
- opp-microvolt-speed1 = <1100000>;
- opp-microvolt-speed2 = <1100000>;
+ opp-microvolt-speed0 = <1160000 1160000 1200000>;
+ opp-microvolt-speed1 = <1100000 1100000 1200000>;
+ opp-microvolt-speed2 = <1100000 1100000 1200000>;
};
};
};
--
2.20.1

[Clément Péron]

Enable CPU opp tables for Tanix TX6.

Also add the fixed regulator that provided vdd-cpu-gpu required for
CPU opp tables.

This voltage has been found using a voltmeter and could be wrong.

Tested-by: Jernej Škrabec <jernej....@gmail.com>

Signed-off-by: Clément Péron <peron...@gmail.com>
---

.../boot/dts/allwinner/sun50i-h6-tanix-tx6.dts | 13 +++++++++++++
1 file changed, 13 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6-tanix-tx6.dts b/arch/arm64/boot/dts/allwinner/sun50i-h6-tanix-tx6.dts
index 83e6cb0e59ce..be81330db14f 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h6-tanix-tx6.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-tanix-tx6.dts
@@ -4,6 +4,7 @@
/dts-v1/;

#include "sun50i-h6.dtsi"
+#include "sun50i-h6-cpu-opp.dtsi"

#include <dt-bindings/gpio/gpio.h>

@@ -37,6 +38,17 @@
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
};
+
+ reg_vdd_cpu_gpu: vdd-cpu-gpu {
+ compatible = "regulator-fixed";
+ regulator-name = "vdd-cpu-gpu";
+ regulator-min-microvolt = <1135000>;
+ regulator-max-microvolt = <1135000>;
+ };
+};
+
+&cpu0 {
+ cpu-supply = <&reg_vdd_cpu_gpu>;
};

&de {
@@ -56,6 +68,7 @@
};

&gpu {
+ mali-supply = <&reg_vdd_cpu_gpu>;
status = "okay";
};

--
2.20.1