@@ -52,6 +52,39 @@ efuse: efuse {
secure-monitor = <&sm>;
};
+ gpu_opp_table: gpu-opp-table {
+ compatible = "operating-points-v2";
+
+ opp-124999998 {
+ opp-hz = /bits/ 64 <124999998>;
+ opp-microvolt = <800000>;
+ };
+ opp-249999996 {
+ opp-hz = /bits/ 64 <249999996>;
+ opp-microvolt = <800000>;
+ };
+ opp-285714281 {
+ opp-hz = /bits/ 64 <285714281>;
+ opp-microvolt = <800000>;
+ };
+ opp-399999994 {
+ opp-hz = /bits/ 64 <399999994>;
+ opp-microvolt = <800000>;
+ };
+ opp-499999992 {
+ opp-hz = /bits/ 64 <499999992>;
+ opp-microvolt = <800000>;
+ };
+ opp-666666656 {
+ opp-hz = /bits/ 64 <666666656>;
+ opp-microvolt = <800000>;
+ };
+ opp-799999987 {
+ opp-hz = /bits/ 64 <799999987>;
+ opp-microvolt = <800000>;
+ };
+ };
+
psci {
compatible = "arm,psci-1.0";
method = "smc";
@@ -2362,21 +2395,7 @@ mali: gpu@ffe40000 {
interrupt-names = "job", "mmu", "gpu";
clocks = <&clkc CLKID_MALI>;
resets = <&reset RESET_DVALIN_CAPB3>, <&reset RESET_DVALIN>;
-
- /*
- * Mali clocking is provided by two identical clock paths
- * MALI_0 and MALI_1 muxed to a single clock by a glitch
- * free mux to safely change frequency while running.
- */
- assigned-clocks = <&clkc CLKID_MALI_0_SEL>,
- <&clkc CLKID_MALI_0>,
- <&clkc CLKID_MALI>; /* Glitch free mux */
- assigned-clock-parents = <&clkc CLKID_FCLK_DIV2P5>,
- <0>, /* Do Nothing */
- <&clkc CLKID_MALI_0>;
- assigned-clock-rates = <0>, /* Do Nothing */
- <800000000>,
- <0>; /* Do Nothing */
+ operating-points-v2 = <&gpu_opp_table>;
#cooling-cells = <2>;
};
};
Add the OPP table for the Mali Bifrost GPU and drop the hardcoded initial clock configuration. This enables GPU DVFS and thus saves power when the GPU is not in use while still being able switch to a higher clock on demand. Set the GP0_PLL clock to 744MHz (which is the only frequency which cannot be derived from the FCLK dividers) as the clock driver avoids setting the parent clock rates so the HIFI PLL clock isn't changed (as that's reserved for audio). Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> --- .../boot/dts/amlogic/meson-g12-common.dtsi | 49 +++++++++++++------ 1 file changed, 34 insertions(+), 15 deletions(-)