From: "Clément Péron" <peron.clem@gmail.com>
To: Maxime Ripard <mripard@kernel.org>, Chen-Yu Tsai <wens@csie.org>,
Rob Herring <robh+dt@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org,
linux-sunxi <linux-sunxi@googlegroups.com>,
"Clément Péron" <peron.clem@gmail.com>
Subject: [PATCH v5 5/9] arm64: dts: allwinner: h6: Enable CPU opp tables for Beelink GS1
Date: Mon, 20 Apr 2020 15:00:17 +0200 [thread overview]
Message-ID: <20200420130021.3841-6-peron.clem@gmail.com> (raw)
In-Reply-To: <20200420130021.3841-1-peron.clem@gmail.com>
Enable CPU opp tables for Beelink GS1.
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>
---
arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts b/arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts
index 8f09d209359b..3f7ceeb1a767 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts
@@ -4,6 +4,7 @@
/dts-v1/;
#include "sun50i-h6.dtsi"
+#include "sun50i-h6-cpu-opp.dtsi"
#include <dt-bindings/gpio/gpio.h>
@@ -77,6 +78,10 @@
};
};
+&cpu0 {
+ cpu-supply = <®_dcdca>;
+};
+
&de {
status = "okay";
};
@@ -234,7 +239,8 @@
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";
};
@@ -242,6 +248,7 @@
regulator-enable-ramp-delay = <32000>;
regulator-min-microvolt = <810000>;
regulator-max-microvolt = <1080000>;
+ regulator-ramp-delay = <2500>;
regulator-name = "vdd-gpu";
};
--
2.20.1
next prev parent reply other threads:[~2020-04-20 13:00 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-20 13:00 [PATCH v5 0/9] Add support for Allwinner H6 DVFS Clément Péron
2020-04-20 13:00 ` [PATCH v5 1/9] arm64: dts: allwinner: h6: Add clock to CPU cores Clément Péron
2020-04-20 13:00 ` [PATCH v5 2/9] arm64: dts: allwinner: h6: Add thermal trip points/cooling map Clément Péron
2020-04-20 13:46 ` Ondřej Jirman
2020-04-20 14:20 ` Clément Péron
2020-04-20 13:00 ` [PATCH v5 3/9] arm64: dts: allwinner: h6: Add CPU Operating Performance Points table Clément Péron
2020-04-20 13:00 ` [PATCH v5 4/9] arm64: configs: Enable sun50i cpufreq nvmem Clément Péron
2020-04-20 13:00 ` Clément Péron [this message]
2020-04-20 13:00 ` [PATCH v5 6/9] arm64: dts: allwinner: h6: Enable CPU opp tables for Orange Pi 3 Clément Péron
2020-04-20 13:00 ` [PATCH v5 7/9] arm64: dts: allwinner: h6: Enable CPU opp tables for Tanix TX6 Clément Péron
2020-04-20 13:00 ` [PATCH v5 8/9] arm64: dts: allwinner: Sort Pine H64 device-tree nodes Clément Péron
2020-04-20 13:00 ` [PATCH v5 9/9] arm64: dts: allwinner: h6: Enable CPU opp tables for Pine H64 Clément Péron
2020-04-20 13:25 ` [PATCH v5 0/9] Add support for Allwinner H6 DVFS Maxime Ripard
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