target/linux/qualcommax/patches-6.1/0054-v6.8-arm64-dts-qcom-ipq6018-use-CPUFreq-NVMEM.patch

   1 From 83afcf14edb9217e58837eb119da96d734a4b3b1 Mon Sep 17 00:00:00 2001
   2 From: Robert Marko <robimarko@gmail.com>
   3 Date: Sat, 21 Oct 2023 14:00:07 +0200
   4 Subject: [PATCH] arm64: dts: qcom: ipq6018: use CPUFreq NVMEM
   5
   6 IPQ6018 comes in multiple SKU-s and some of them dont support all of the
   7 OPP-s that are current set, so lets utilize CPUFreq NVMEM to allow only
   8 supported OPP-s based on the SoC dynamically.
   9
  10 As an example, IPQ6018 is generaly rated at 1.8GHz but some silicon only
  11 goes up to 1.5GHz and is marked as such via an eFuse.
  12
  13 Signed-off-by: Robert Marko <robimarko@gmail.com>
  14 Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
  15 Link: https://lore.kernel.org/r/20231021120048.231239-1-robimarko@gmail.com
  16 Signed-off-by: Bjorn Andersson <andersson@kernel.org>
  17 ---
  18  arch/arm64/boot/dts/qcom/ipq6018.dtsi | 14 +++++++++++++-
  19  1 file changed, 13 insertions(+), 1 deletion(-)
  20
  21 --- a/arch/arm64/boot/dts/qcom/ipq6018.dtsi
  22 +++ b/arch/arm64/boot/dts/qcom/ipq6018.dtsi
  23 @@ -95,42 +95,49 @@
  24         };
  25
  26         cpu_opp_table: opp-table-cpu {
  27 -               compatible = "operating-points-v2";
  28 +               compatible = "operating-points-v2-kryo-cpu";
  29 +               nvmem-cells = <&cpu_speed_bin>;
  30                 opp-shared;
  31
  32                 opp-864000000 {
  33                         opp-hz = /bits/ 64 <864000000>;
  34                         opp-microvolt = <725000>;
  35 +                       opp-supported-hw = <0xf>;
  36                         clock-latency-ns = <200000>;
  37                 };
  38
  39                 opp-1056000000 {
  40                         opp-hz = /bits/ 64 <1056000000>;
  41                         opp-microvolt = <787500>;
  42 +                       opp-supported-hw = <0xf>;
  43                         clock-latency-ns = <200000>;
  44                 };
  45
  46                 opp-1320000000 {
  47                         opp-hz = /bits/ 64 <1320000000>;
  48                         opp-microvolt = <862500>;
  49 +                       opp-supported-hw = <0x3>;
  50                         clock-latency-ns = <200000>;
  51                 };
  52
  53                 opp-1440000000 {
  54                         opp-hz = /bits/ 64 <1440000000>;
  55                         opp-microvolt = <925000>;
  56 +                       opp-supported-hw = <0x3>;
  57                         clock-latency-ns = <200000>;
  58                 };
  59
  60                 opp-1608000000 {
  61                         opp-hz = /bits/ 64 <1608000000>;
  62                         opp-microvolt = <987500>;
  63 +                       opp-supported-hw = <0x1>;
  64                         clock-latency-ns = <200000>;
  65                 };
  66
  67                 opp-1800000000 {
  68                         opp-hz = /bits/ 64 <1800000000>;
  69                         opp-microvolt = <1062500>;
  70 +                       opp-supported-hw = <0x1>;
  71                         clock-latency-ns = <200000>;
  72                 };
  73         };
  74 @@ -321,6 +328,11 @@
  75                         reg = <0x0 0x000a4000 0x0 0x2000>;
  76                         #address-cells = <1>;
  77                         #size-cells = <1>;
  78 +
  79 +                       cpu_speed_bin: cpu-speed-bin@135 {
  80 +                               reg = <0x135 0x1>;
  81 +                               bits = <7 1>;
  82 +                       };
  83                 };
  84
  85                 prng: qrng@e3000 {