Re: [RFC 7/7] arm64: dts: qcom: x1e80100: Enable LLCC/DDR dvfs

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On 1/18/24 02:17, Dmitry Baryshkov wrote:
On Wed, 17 Jan 2024 at 19:37, Sibi Sankar <quic_sibis@xxxxxxxxxxx> wrote:

Enable LLCC/DDR dvfs through the Qualcomm's SCMI vendor protocol.

Could you please post DT bindings?

ack, will include it in the next re-spin.



Signed-off-by: Sibi Sankar <quic_sibis@xxxxxxxxxxx>
---
  arch/arm64/boot/dts/qcom/x1e80100.dtsi | 48 ++++++++++++++++++++++++++
  1 file changed, 48 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/x1e80100.dtsi b/arch/arm64/boot/dts/qcom/x1e80100.dtsi
index 6856a206f7fc..3dc6f32fbb4c 100644
--- a/arch/arm64/boot/dts/qcom/x1e80100.dtsi
+++ b/arch/arm64/boot/dts/qcom/x1e80100.dtsi
@@ -329,6 +329,54 @@ scmi_dvfs: protocol@13 {
                                 reg = <0x13>;
                                 #clock-cells = <1>;
                         };
+
+                       scmi_vendor: protocol@80 {
+                               reg = <0x80>;
+
+                               memlat {

This doesn't look like a generic node name.

+                                       #address-cells = <1>;
+                                       #size-cells = <0>;

+
+                                       memory@0 {
+                                               reg = <0x0>; /* Memory Type DDR */
+                                               freq-table-khz = <200000 4224000>;
+
+                                               monitor-0 {
+                                                       qcom,cpulist = <&CPU0 &CPU1 &CPU2 &CPU3 &CPU4 &CPU5 &CPU6 &CPU7 &CPU8 &CPU9 &CPU10 &CPU11>;



+                                                       qcom,cpufreq-memfreq-tbl = < 999000 547000 >,
+                                                                                  < 1440000 768000 >,
+                                                                                  < 1671000 1555000 >,
+                                                                                  < 2189000 2092000 >,
+                                                                                  < 2156000 3187000 >,
+                                                                                  < 3860000 4224000 >;

These tables should be rewritten as OPP tables. >

+                                               };
+
+                                               monitor-1 {
+                                                       qcom,compute-mon;
+                                                       qcom,cpulist = <&CPU0 &CPU1 &CPU2 &CPU3 &CPU4 &CPU5 &CPU6 &CPU7 &CPU8 &CPU9 &CPU10 &CPU11>;
+                                                       qcom,cpufreq-memfreq-tbl = < 1440000 200000 >,
+                                                                                  < 2189000 768000 >,
+                                                                                  < 2156000 1555000 >,
+                                                                                  < 3860000 2092000 >;
+                                               };
+                                       };
+
+                                       memory@1 {
+                                               reg = <0x1>; /* Memory Type LLCC */
+                                               freq-table-khz = <300000 1067000>;
+
+                                               monitor-0 {
+                                                       qcom,cpulist = <&CPU0 &CPU1 &CPU2 &CPU3 &CPU4 &CPU5 &CPU6 &CPU7 &CPU8 &CPU9 &CPU10 &CPU11>;
+                                                       qcom,cpufreq-memfreq-tbl = < 999000 300000 >,
+                                                                                  < 1440000 466000 >,
+                                                                                  < 1671000 600000 >,
+                                                                                  < 2189000 806000 >,
+                                                                                  < 2156000 933000 >,
+                                                                                  < 3860000 1066000 >;
+                                               };
+                                       };
+                               };
+                       };
                 };
         };

--
2.34.1




--
With best wishes
Dmitry




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