diff options
Diffstat (limited to 'target/linux/qualcommax/patches-6.6/0054-v6.8-arm64-dts-qcom-ipq6018-use-CPUFreq-NVMEM.patch')
| -rw-r--r-- | target/linux/qualcommax/patches-6.6/0054-v6.8-arm64-dts-qcom-ipq6018-use-CPUFreq-NVMEM.patch | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/target/linux/qualcommax/patches-6.6/0054-v6.8-arm64-dts-qcom-ipq6018-use-CPUFreq-NVMEM.patch b/target/linux/qualcommax/patches-6.6/0054-v6.8-arm64-dts-qcom-ipq6018-use-CPUFreq-NVMEM.patch new file mode 100644 index 0000000000..1369a90a8a --- /dev/null +++ b/target/linux/qualcommax/patches-6.6/0054-v6.8-arm64-dts-qcom-ipq6018-use-CPUFreq-NVMEM.patch @@ -0,0 +1,85 @@ +From 83afcf14edb9217e58837eb119da96d734a4b3b1 Mon Sep 17 00:00:00 2001 +From: Robert Marko <robimarko@gmail.com> +Date: Sat, 21 Oct 2023 14:00:07 +0200 +Subject: [PATCH] arm64: dts: qcom: ipq6018: use CPUFreq NVMEM + +IPQ6018 comes in multiple SKU-s and some of them dont support all of the +OPP-s that are current set, so lets utilize CPUFreq NVMEM to allow only +supported OPP-s based on the SoC dynamically. + +As an example, IPQ6018 is generaly rated at 1.8GHz but some silicon only +goes up to 1.5GHz and is marked as such via an eFuse. + +Signed-off-by: Robert Marko <robimarko@gmail.com> +Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org> +Link: https://lore.kernel.org/r/20231021120048.231239-1-robimarko@gmail.com +Signed-off-by: Bjorn Andersson <andersson@kernel.org> +--- + arch/arm64/boot/dts/qcom/ipq6018.dtsi | 14 +++++++++++++- + 1 file changed, 13 insertions(+), 1 deletion(-) + +--- a/arch/arm64/boot/dts/qcom/ipq6018.dtsi ++++ b/arch/arm64/boot/dts/qcom/ipq6018.dtsi +@@ -95,42 +95,49 @@ + }; + + cpu_opp_table: opp-table-cpu { +- compatible = "operating-points-v2"; ++ compatible = "operating-points-v2-kryo-cpu"; ++ nvmem-cells = <&cpu_speed_bin>; + opp-shared; + + opp-864000000 { + opp-hz = /bits/ 64 <864000000>; + opp-microvolt = <725000>; ++ opp-supported-hw = <0xf>; + clock-latency-ns = <200000>; + }; + + opp-1056000000 { + opp-hz = /bits/ 64 <1056000000>; + opp-microvolt = <787500>; ++ opp-supported-hw = <0xf>; + clock-latency-ns = <200000>; + }; + + opp-1320000000 { + opp-hz = /bits/ 64 <1320000000>; + opp-microvolt = <862500>; ++ opp-supported-hw = <0x3>; + clock-latency-ns = <200000>; + }; + + opp-1440000000 { + opp-hz = /bits/ 64 <1440000000>; + opp-microvolt = <925000>; ++ opp-supported-hw = <0x3>; + clock-latency-ns = <200000>; + }; + + opp-1608000000 { + opp-hz = /bits/ 64 <1608000000>; + opp-microvolt = <987500>; ++ opp-supported-hw = <0x1>; + clock-latency-ns = <200000>; + }; + + opp-1800000000 { + opp-hz = /bits/ 64 <1800000000>; + opp-microvolt = <1062500>; ++ opp-supported-hw = <0x1>; + clock-latency-ns = <200000>; + }; + }; +@@ -321,6 +328,11 @@ + reg = <0x0 0x000a4000 0x0 0x2000>; + #address-cells = <1>; + #size-cells = <1>; ++ ++ cpu_speed_bin: cpu-speed-bin@135 { ++ reg = <0x135 0x1>; ++ bits = <7 1>; ++ }; + }; + + prng: qrng@e3000 { |