Re: [RFC 7/7] arm64: dts: qcom: x1e80100: Enable LLCC/DDR dvfs
From: Sibi Sankar
Date: Mon Feb 12 2024 - 04:47:49 EST
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