From 3c76abb8c508482834e1c8ef9ec1c89dd0665baa Mon Sep 17 00:00:00 2001
From: Piotr Szczepanik <piter75@gmail.com>
Date: Wed, 9 Sep 2020 21:51:31 +0200
Subject: [PATCH] Bumped voltages for low OPPs for rk3399 in current/dev
 (#2197)

---
 .../rk3399-bump-voltages-for-low-opps.patch   | 40 +++++++++++++++++++
 .../rk3399-bump-voltages-for-low-opps.patch   | 40 +++++++++++++++++++
 2 files changed, 80 insertions(+)
 create mode 100644 patch/kernel/rockchip64-current/rk3399-bump-voltages-for-low-opps.patch
 create mode 100644 patch/kernel/rockchip64-dev/rk3399-bump-voltages-for-low-opps.patch

diff --git a/patch/kernel/rockchip64-current/rk3399-bump-voltages-for-low-opps.patch b/patch/kernel/rockchip64-current/rk3399-bump-voltages-for-low-opps.patch
new file mode 100644
index 0000000000..a7c9dee53d
--- /dev/null
+++ b/patch/kernel/rockchip64-current/rk3399-bump-voltages-for-low-opps.patch
@@ -0,0 +1,40 @@
+The change is in line with the following commit from Rockchip's BSP:
+https://github.com/rockchip-linux/kernel/commit/7a8a38540302b746cdb1238023d807190c1ee485
+
+"It is better to make the voltage greater than 810mV
+and it will be more stable."
+
+diff --git a/arch/arm64/boot/dts/rockchip/rk3399-opp.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-opp.dtsi
+index 30f353c10..996fe66a5 100644
+--- a/arch/arm64/boot/dts/rockchip/rk3399-opp.dtsi
++++ b/arch/arm64/boot/dts/rockchip/rk3399-opp.dtsi
+@@ -10,12 +10,12 @@
+ 
+ 		opp00 {
+ 			opp-hz = /bits/ 64 <408000000>;
+-			opp-microvolt = <800000>;
++			opp-microvolt = <825000>;
+ 			clock-latency-ns = <40000>;
+ 		};
+ 		opp01 {
+ 			opp-hz = /bits/ 64 <600000000>;
+-			opp-microvolt = <800000>;
++			opp-microvolt = <825000>;
+ 		};
+ 		opp02 {
+ 			opp-hz = /bits/ 64 <816000000>;
+@@ -45,12 +45,12 @@
+ 
+ 		opp00 {
+ 			opp-hz = /bits/ 64 <408000000>;
+-			opp-microvolt = <800000>;
++			opp-microvolt = <825000>;
+ 			clock-latency-ns = <40000>;
+ 		};
+ 		opp01 {
+ 			opp-hz = /bits/ 64 <600000000>;
+-			opp-microvolt = <800000>;
++			opp-microvolt = <825000>;
+ 		};
+ 		opp02 {
+ 			opp-hz = /bits/ 64 <816000000>;
diff --git a/patch/kernel/rockchip64-dev/rk3399-bump-voltages-for-low-opps.patch b/patch/kernel/rockchip64-dev/rk3399-bump-voltages-for-low-opps.patch
new file mode 100644
index 0000000000..a7c9dee53d
--- /dev/null
+++ b/patch/kernel/rockchip64-dev/rk3399-bump-voltages-for-low-opps.patch
@@ -0,0 +1,40 @@
+The change is in line with the following commit from Rockchip's BSP:
+https://github.com/rockchip-linux/kernel/commit/7a8a38540302b746cdb1238023d807190c1ee485
+
+"It is better to make the voltage greater than 810mV
+and it will be more stable."
+
+diff --git a/arch/arm64/boot/dts/rockchip/rk3399-opp.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-opp.dtsi
+index 30f353c10..996fe66a5 100644
+--- a/arch/arm64/boot/dts/rockchip/rk3399-opp.dtsi
++++ b/arch/arm64/boot/dts/rockchip/rk3399-opp.dtsi
+@@ -10,12 +10,12 @@
+ 
+ 		opp00 {
+ 			opp-hz = /bits/ 64 <408000000>;
+-			opp-microvolt = <800000>;
++			opp-microvolt = <825000>;
+ 			clock-latency-ns = <40000>;
+ 		};
+ 		opp01 {
+ 			opp-hz = /bits/ 64 <600000000>;
+-			opp-microvolt = <800000>;
++			opp-microvolt = <825000>;
+ 		};
+ 		opp02 {
+ 			opp-hz = /bits/ 64 <816000000>;
+@@ -45,12 +45,12 @@
+ 
+ 		opp00 {
+ 			opp-hz = /bits/ 64 <408000000>;
+-			opp-microvolt = <800000>;
++			opp-microvolt = <825000>;
+ 			clock-latency-ns = <40000>;
+ 		};
+ 		opp01 {
+ 			opp-hz = /bits/ 64 <600000000>;
+-			opp-microvolt = <800000>;
++			opp-microvolt = <825000>;
+ 		};
+ 		opp02 {
+ 			opp-hz = /bits/ 64 <816000000>;