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arm64: dts: allwinner: h6: Enable CPU opp tables for Pine H64 

Enable CPU and GPU opp tables for Pine H64.

This needs to change the CPU regulator max voltage to fit
the OPP table.

Also add the ramp-delay information to avoid any out of spec
running as the regulator is slower at reaching the voltage
requested compare to the PLL reaching the frequency.

There is no such information for AXP805 but similar PMIC (AXP813)
has a DVM (Dynamic Voltage scaling Management) ramp rate equal
to 2500uV/us.

Signed-off-by: Clément Péron <peron.clem@gmail.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
This commit is contained in:
Clément Péron 2020-04-20 15:00:21 +02:00 committed by Maxime Ripard
parent d8e2b7e11b
commit fe79ea577b
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GPG Key ID: E3EF0D6F671851C5
1 changed files with 8 additions and 1 deletions
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9
arch/arm64/boot/dts/allwinner/sun50i-h6-pine-h64.dts
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@ -4,6 +4,7 @@
/dts-v1/;
#include "sun50i-h6.dtsi"
#include "sun50i-h6-cpu-opp.dtsi"
#include <dt-bindings/gpio/gpio.h>
@ -80,6 +81,10 @@
};
};
&cpu0 {
cpu-supply = <&reg_dcdca>;
};
&de {
status = "okay";
};
@ -238,7 +243,8 @@
reg_dcdca: dcdca {
regulator-always-on;
regulator-min-microvolt = <810000>;
regulator-max-microvolt = <1080000>;
regulator-max-microvolt = <1160000>;
regulator-ramp-delay = <2500>;
regulator-name = "vdd-cpu";
};
@ -246,6 +252,7 @@
regulator-enable-ramp-delay = <32000>;
regulator-min-microvolt = <810000>;
regulator-max-microvolt = <1080000>;
regulator-ramp-delay = <2500>;
regulator-name = "vdd-gpu";
};