[PATCH v2 0/3] arm64: dts: allwinner: h6: Enable GPU and CPU DVFS on more boards

[PATCH v2 0/3] arm64: dts: allwinner: h6: Enable GPU and CPU DVFS on more boards

[Jernej Skrabec]

Most H6 boards don't use the GPU OPP table, and the Orange Pi One Plus
and Lite2 lack CPU DVFS as well, so their GPU and CPU run at a fixed
clock rate. This series enables both.

Changes in v2:
- new patch 1: add regulator-ramp-delay to vdd-cpu and vdd-gpu on the
  Orange Pi One Plus and Lite2, like on the other AXP805-based H6 boards

Link to v1: https://lore.kernel.org/linux-sunxi/20261104184940.882833-1-jernej.skrabec@gmail.com/

Jernej Skrabec (3):
  arm64: dts: allwinner: h6: orangepi: Add regulator ramp delays
  arm64: dts: allwinner: h6: Add GPU OPP table to all boards
  arm64: dts: allwinner: h6: orangepi: Enable CPU frequency scaling

 arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts | 1 +
 arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi.dtsi  | 8 ++++++++
 arch/arm64/boot/dts/allwinner/sun50i-h6-pine-h64.dts   | 1 +
 arch/arm64/boot/dts/allwinner/sun50i-h6-tanix.dtsi     | 1 +
 4 files changed, 11 insertions(+)


base-commit: 6628e7d4c6b25c8d18f1345e3a20d21829aae7e4
-- 
2.43.0

[PATCH v2 1/3] arm64: dts: allwinner: h6: orangepi: Add regulator ramp delays

[Jernej Skrabec]

The vdd-cpu and vdd-gpu regulators on the Orange Pi One Plus and Lite2
have no ramp delay, and the AXP805 driver provides none either. Once
DVFS is enabled, the OPP core would raise the clock rate right after
setting a higher voltage, before the regulator output has settled.

Add the same 2500 uV/us ramp delay that the other AXP805-based H6
boards use.

Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
---
 arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi.dtsi
index e34dbb992021..cbe88ee6a487 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi.dtsi
@@ -202,6 +202,7 @@ reg_dcdca: dcdca {
 				regulator-always-on;
 				regulator-min-microvolt = <810000>;
 				regulator-max-microvolt = <1080000>;
+				regulator-ramp-delay = <2500>;
 				regulator-name = "vdd-cpu";
 			};
 
@@ -209,6 +210,7 @@ reg_dcdcc: dcdcc {
 				regulator-enable-ramp-delay = <32000>;
 				regulator-min-microvolt = <810000>;
 				regulator-max-microvolt = <1080000>;
+				regulator-ramp-delay = <2500>;
 				regulator-name = "vdd-gpu";
 			};
 
-- 
2.43.0

[PATCH v2 2/3] arm64: dts: allwinner: h6: Add GPU OPP table to all boards

[Jernej Skrabec]

Only the Beelink GS1 and TaiQiCat A01 include the H6 GPU OPP table, so
the GPU on all other H6 boards runs at a fixed clock rate. Include it on
the remaining boards, so devfreq can scale the GPU clock for either
better performance or lower power consumption.

The table also works with a fixed GPU supply, as on Tanix boards.

Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
---
 arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts | 1 +
 arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi.dtsi  | 1 +
 arch/arm64/boot/dts/allwinner/sun50i-h6-pine-h64.dts   | 1 +
 arch/arm64/boot/dts/allwinner/sun50i-h6-tanix.dtsi     | 1 +
 4 files changed, 4 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts b/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts
index dc7381c944c9..ce82aa265cfd 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts
@@ -5,6 +5,7 @@
 
 #include "sun50i-h6.dtsi"
 #include "sun50i-h6-cpu-opp.dtsi"
+#include "sun50i-h6-gpu-opp.dtsi"
 
 #include <dt-bindings/gpio/gpio.h>
 
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi.dtsi
index cbe88ee6a487..40c5c42b347e 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi.dtsi
@@ -5,6 +5,7 @@
 /dts-v1/;
 
 #include "sun50i-h6.dtsi"
+#include "sun50i-h6-gpu-opp.dtsi"
 
 #include <dt-bindings/gpio/gpio.h>
 
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6-pine-h64.dts b/arch/arm64/boot/dts/allwinner/sun50i-h6-pine-h64.dts
index fa7a765ee828..f4a5a2215ea2 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h6-pine-h64.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-pine-h64.dts
@@ -5,6 +5,7 @@
 
 #include "sun50i-h6.dtsi"
 #include "sun50i-h6-cpu-opp.dtsi"
+#include "sun50i-h6-gpu-opp.dtsi"
 
 #include <dt-bindings/gpio/gpio.h>
 
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6-tanix.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h6-tanix.dtsi
index bb7de37c0d58..f08077175549 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h6-tanix.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-tanix.dtsi
@@ -5,6 +5,7 @@
 
 #include "sun50i-h6.dtsi"
 #include "sun50i-h6-cpu-opp.dtsi"
+#include "sun50i-h6-gpu-opp.dtsi"
 
 #include <dt-bindings/gpio/gpio.h>
 
-- 
2.43.0

[PATCH v2 3/3] arm64: dts: allwinner: h6: orangepi: Enable CPU frequency scaling

[Jernej Skrabec]

The Orange Pi One Plus and Lite2 lack the CPU OPP table and CPU supply,
so the CPU never scales its frequency. Add both, like on Orange Pi 3.
OPPs above the regulator constraints stay unused.

Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
---
 arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi.dtsi | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi.dtsi
index 40c5c42b347e..a2a2e4cb0256 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi.dtsi
@@ -5,6 +5,7 @@
 /dts-v1/;
 
 #include "sun50i-h6.dtsi"
+#include "sun50i-h6-cpu-opp.dtsi"
 #include "sun50i-h6-gpu-opp.dtsi"
 
 #include <dt-bindings/gpio/gpio.h>
@@ -65,6 +66,10 @@ reg_vcc5v: vcc5v {
 	};
 };
 
+&cpu0 {
+	cpu-supply = <&reg_dcdca>;
+};
+
 &de {
 	status = "okay";
 };
-- 
2.43.0