Thread (49 messages) 49 messages, 6 authors, 2025-12-24

Re: [PATCH v3 5/6] arm64: dts: qcom: sm6150: Add gpu and rgmu nodes

From: Akhil P Oommen <akhilpo@oss.qualcomm.com>
Date: 2025-12-04 10:13:44
Also in: dri-devel, linux-arm-msm, lkml

On 11/26/2025 6:12 AM, Dmitry Baryshkov wrote:
On Sat, Nov 22, 2025 at 03:03:10PM +0100, Konrad Dybcio wrote:
quoted
On 11/21/25 10:52 PM, Akhil P Oommen wrote:
quoted
From: Jie Zhang <redacted>

Add gpu and rgmu nodes for qcs615 chipset.

Signed-off-by: Jie Zhang <redacted>
Signed-off-by: Akhil P Oommen <akhilpo@oss.qualcomm.com>
---
[...]
quoted
+			gpu_opp_table: opp-table {
+				compatible = "operating-points-v2";
+
+				opp-845000000 {
+					opp-hz = /bits/ 64 <845000000>;
+					required-opps = <&rpmhpd_opp_turbo>;
+					opp-peak-kBps = <7050000>;
+				};
I see another speed of 895 @ turbo_l1, perhaps that's for speedbins
or mobile parts specifically?
msm-4.14 defines 7 speedbins for SM6150. Akhil, I don't see any of them
here.
The IoT/Auto variants have a different frequency plan compared to the
mobile variant. I reviewed the downstream code and this aligns with that
except the 290Mhz corner. We can remove that one.

Here we are describing the IoT variant of Talos. So we can ignore the
speedbins from the mobile variant until that is supported.

-Akhil.

quoted
[...]
quoted
+
+				opp-745000000 {
+					opp-hz = /bits/ 64 <745000000>;
+					required-opps = <&rpmhpd_opp_nom_l1>;
+					opp-peak-kBps = <6075000>;
+				};
+
+				opp-650000000 {
+					opp-hz = /bits/ 64 <650000000>;
+					required-opps = <&rpmhpd_opp_nom>;
+					opp-peak-kBps = <5287500>;
+				};
Here the freq map says 700 MHz
quoted
+				opp-500000000 {
+					opp-hz = /bits/ 64 <500000000>;
+					required-opps = <&rpmhpd_opp_svs_l1>;
+					opp-peak-kBps = <3975000>;
+				};
550

Konrad
  
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