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Fix GPU black screen: restore low-frequency OPPs in GPU OPP table

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ROOT CAUSE: The DTS patch removed ALL GPU OPPs (200/300/400/480 MHz)
and only kept 560/600 MHz. The GPU devfreq governor starts at the
LOWEST available OPP. Without 200 MHz, the GPU couldn't initialize
its clock, causing a black screen on boot.

Fix: Keep original 200/300/400 MHz OPPs, only replace 480 MHz with
560 MHz (overclock) and add 600 MHz. GPU can now initialize at 200 MHz
and scale up to 600 MHz.
This commit is contained in:
Douglas Teles
2026-04-18 01:20:42 -03:00
parent 04300ba8a4
commit 325114b508
1 changed files with 18 additions and 27 deletions
Download Patch File Download Diff File Expand all files Collapse all files
projects/ArchR/devices/RK3326/patches/linux/000-rk3326-dts.patch
+18 -27
View File
@@ -1,5 +1,5 @@
--- a/arch/arm64/boot/dts/rockchip/px30.dtsi 2026-04-03 13:23:49.793309412 -0300
+++ b/arch/arm64/boot/dts/rockchip/px30.dtsi 2026-04-03 13:24:16.188299986 -0300
--- a/arch/arm64/boot/dts/rockchip/px30.dtsi 2026-04-18 00:12:46.801599300 -0300
+++ b/arch/arm64/boot/dts/rockchip/px30.dtsi 2026-04-18 00:15:35.235545979 -0300
@@ -20,6 +20,7 @@
#size-cells = <2>;
@@ -21,17 +21,20 @@
opp-microvolt = <950000 950000 1350000>;
clock-latency-ns = <40000>;
opp-suspend;
@@ -134,10 +136,16 @@
opp-microvolt = <1300000 1300000 1350000>;
@@ -129,15 +131,16 @@
opp-microvolt = <1175000 1175000 1350000>;
clock-latency-ns = <40000>;
};
- opp-1200000000 {
- opp-hz = /bits/ 64 <1200000000>;
- opp-microvolt = <1300000 1300000 1350000>;
+ opp-1416000000 {
+ opp-hz = /bits/ 64 <1416000000>;
+ opp-microvolt = <1350000 1350000 1350000>;
clock-latency-ns = <40000>;
};
- opp-1296000000 {
- opp-hz = /bits/ 64 <1296000000>;
+ opp-1416000000 {
+ opp-hz = /bits/ 64 <1416000000>;
+ opp-microvolt = <1350000 1350000 1350000>;
+ clock-latency-ns = <40000>;
+ };
+ opp-1512000000 {
+ opp-hz = /bits/ 64 <1512000000>;
opp-microvolt = <1350000 1350000 1350000>;
@@ -40,7 +43,7 @@
};
};
@@ -348,6 +356,32 @@
@@ -348,6 +351,32 @@
};
};
@@ -73,22 +76,10 @@
pmugrf: syscon@ff010000 {
compatible = "rockchip,px30-pmugrf", "syscon", "simple-mfd";
reg = <0x0 0xff010000 0x0 0x1000>;
@@ -1065,22 +1099,14 @@
gpu_opp_table: opp-table-1 {
compatible = "operating-points-v2";
- opp-200000000 {
- opp-hz = /bits/ 64 <200000000>;
- opp-microvolt = <950000>;
- };
- opp-300000000 {
- opp-hz = /bits/ 64 <300000000>;
- opp-microvolt = <975000>;
- };
- opp-400000000 {
- opp-hz = /bits/ 64 <400000000>;
- opp-microvolt = <1050000>;
- };
@@ -1077,10 +1106,14 @@
opp-hz = /bits/ 64 <400000000>;
opp-microvolt = <1050000>;
};
- opp-480000000 {
- opp-hz = /bits/ 64 <480000000>;
+ opp-560000000 {
@@ -102,7 +93,7 @@
};
gpu: gpu@ff400000 {
@@ -1091,10 +1117,25 @@
@@ -1091,10 +1124,25 @@
<GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "job", "mmu", "gpu";
clocks = <&cru SCLK_GPU>;