From 7c979b574c428a062ddaec3a916104ce65043c87 Mon Sep 17 00:00:00 2001 From: Alex Bee Date: Wed, 2 Sep 2020 19:52:02 +0200 Subject: [PATCH 027/110] FROMGIT(6.18): arm64: dts: rockchip: add GPU powerdomain, opps, and cooling to rk3328 Add GPU powerdomain, opp-table, and cooling map nodes for the Mali GPU on the RK3328 SoC. Opp-table frequencies are sourced from the Rockchip Linux v4.4 vendor kernel while voltages have been derived from practical use and support work: keeping voltage above 1075mV and disabling the 500MHz opp-point avoids instability and crashes. Signed-off-by: Alex Bee Signed-off-by: Christian Hewitt --- arch/arm64/boot/dts/rockchip/rk3328.dtsi | 39 +++++++++++++++++++++++- 1 file changed, 38 insertions(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/rockchip/rk3328.dtsi b/arch/arm64/boot/dts/rockchip/rk3328.dtsi index 6438c969f9d7..cc93136422c1 100644 --- a/arch/arm64/boot/dts/rockchip/rk3328.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk3328.dtsi @@ -331,6 +331,11 @@ power: power-controller { #address-cells = <1>; #size-cells = <0>; + power-domain@RK3328_PD_GPU { + reg = ; + clocks = <&cru ACLK_GPU>; + #power-domain-cells = <0>; + }; power-domain@RK3328_PD_HEVC { reg = ; clocks = <&cru SCLK_VENC_CORE>; @@ -570,9 +575,13 @@ map0 { <&cpu3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; contribution = <4096>; }; + map1 { + trip = <&target>; + cooling-device = <&gpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; + contribution = <4096>; + }; }; }; - }; tsadc: tsadc@ff250000 { @@ -651,7 +660,35 @@ gpu: gpu@ff300000 { "ppmmu1"; clocks = <&cru ACLK_GPU>, <&cru ACLK_GPU>; clock-names = "bus", "core"; + operating-points-v2 = <&gpu_opp_table>; + power-domains = <&power RK3328_PD_GPU>; resets = <&cru SRST_GPU_A>; + #cooling-cells = <2>; + }; + + gpu_opp_table: gpu-opp-table { + compatible = "operating-points-v2"; + opp-200000000 { + opp-hz = /bits/ 64 <200000000>; + opp-microvolt = <1075000>; + }; + + opp-300000000 { + opp-hz = /bits/ 64 <300000000>; + opp-microvolt = <1075000>; + }; + + opp-400000000 { + opp-hz = /bits/ 64 <400000000>; + opp-microvolt = <1075000>; + }; + + opp-500000000 { + /* causes stability issues */ + opp-hz = /bits/ 64 <500000000>; + opp-microvolt = <1150000>; + status = "disabled"; + }; }; h265e_mmu: iommu@ff330200 { -- 2.34.1