diff mbox series

[v4,7/9] arm64: dts: qcom: ipq5332: populate the opp table based on the eFuse

Message ID ce87f42a4f05d8e654059649040308f65e46db57.1697694811.git.quic_varada@quicinc.com (mailing list archive)
State Superseded
Headers show
Series Enable cpufreq for IPQ5332 & IPQ9574 | expand

Commit Message

Varadarajan Narayanan Oct. 19, 2023, 8:40 a.m. UTC 
IPQ53xx have different OPPs available for the CPU based on
SoC variant. This can be determined through use of an eFuse
register present in the silicon.

Add support to read the eFuse and populate the OPPs based on it.

	------------------------------------------------
	Frequency	BIT2	BIT1	opp-supported-hw
			1.1GHz	1.5GHz
	------------------------------------------------
	1100000000	1	1	0x7
	1500000000	0	1	0x3
	------------------------------------------------

Signed-off-by: Kathiravan T <quic_kathirav@quicinc.com>
Signed-off-by: Varadarajan Narayanan <quic_varada@quicinc.com>
---
v4:	Change opp-supported-hw from 0xf to 0x7 in commit log
	and DT entry.
v2:	Fix inconsistencies in comment and move it to commit log
	as suggested
	Remove opp-microvolt entries as no regulator is managed by Linux
	cpu_speed_bin -> cpu-speed-bin in node name
	Remove "nvmem-cell-names" due to dtbs_check error
---
 arch/arm64/boot/dts/qcom/ipq5332.dtsi | 19 ++++++++++++++++---
 1 file changed, 16 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/qcom/ipq5332.dtsi b/arch/arm64/boot/dts/qcom/ipq5332.dtsi
index 4206f05..42e2e48 100644
--- a/arch/arm64/boot/dts/qcom/ipq5332.dtsi
+++ b/arch/arm64/boot/dts/qcom/ipq5332.dtsi
@@ -91,11 +91,19 @@ 
 	};
 
 	cpu_opp_table: opp-table-cpu {
-		compatible = "operating-points-v2";
+		compatible = "operating-points-v2-kryo-cpu";
 		opp-shared;
+		nvmem-cells = <&cpu_speed_bin>;
 
-		opp-1488000000 {
-			opp-hz = /bits/ 64 <1488000000>;
+		opp-1100000000 {
+			opp-hz = /bits/ 64 <1100000000>;
+			opp-supported-hw = <0x7>;
+			clock-latency-ns = <200000>;
+		};
+
+		opp-1500000000 {
+			opp-hz = /bits/ 64 <1500000000>;
+			opp-supported-hw = <0x3>;
 			clock-latency-ns = <200000>;
 		};
 	};
@@ -163,6 +171,11 @@ 
 			reg = <0x000a4000 0x721>;
 			#address-cells = <1>;
 			#size-cells = <1>;
+
+			cpu_speed_bin: cpu-speed-bin@1d {
+				reg = <0x1d 0x2>;
+				bits = <7 2>;
+			};
 		};
 
 		rng: rng@e3000 {