Re: [PATCH v2 08/11] arm64: dts: qcom: Add SM7325 device tree

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On 8/9/24 00:38, Rob Herring wrote:
On Thu, Aug 08, 2024 at 09:40:22PM +0300, Danila Tikhonov wrote:
From: Eugene Lepshy <fekz115@xxxxxxxxx>

The Snapdragon 778G (SM7325) / 778G+ (SM7325-AE) / 782G (SM7325-AF)
is software-wise very similar to the Snapdragon 7c+ Gen 3 (SC7280).

It uses the Kryo670.

Signed-off-by: Eugene Lepshy <fekz115@xxxxxxxxx>
Signed-off-by: Danila Tikhonov <danila@xxxxxxxxxxx>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
---
  arch/arm64/boot/dts/qcom/sm7325.dtsi | 17 +++++++++++++++++
  1 file changed, 17 insertions(+)
  create mode 100644 arch/arm64/boot/dts/qcom/sm7325.dtsi

diff --git a/arch/arm64/boot/dts/qcom/sm7325.dtsi b/arch/arm64/boot/dts/qcom/sm7325.dtsi
new file mode 100644
index 000000000000..5b4574484412
--- /dev/null
+++ b/arch/arm64/boot/dts/qcom/sm7325.dtsi
@@ -0,0 +1,17 @@
+// SPDX-License-Identifier: BSD-3-Clause
+/*
+ * Copyright (c) 2024, Eugene Lepshy <fekz115@xxxxxxxxx>
+ * Copyright (c) 2024, Danila Tikhonov <danila@xxxxxxxxxxx>
+ */
+
+#include "sc7280.dtsi"
+
+/* SM7325 uses Kryo 670 */
+&CPU0 { compatible = "qcom,kryo670"; };
+&CPU1 { compatible = "qcom,kryo670"; };
+&CPU2 { compatible = "qcom,kryo670"; };
+&CPU3 { compatible = "qcom,kryo670"; };
+&CPU4 { compatible = "qcom,kryo670"; };
+&CPU5 { compatible = "qcom,kryo670"; };
+&CPU6 { compatible = "qcom,kryo670"; };
+&CPU7 { compatible = "qcom,kryo670"; };
No PMU? Because PMUs are also a per CPU model compatible string.

I fixed most QCom platforms recently.

Rob
Sorry for my long reply and thank you for your feedback.

You are absolutely right. But at the moment I can't confirm that the
sc7280 doesn't use cortex a55 and a78 either. I would fix that in the
sc7280 DTS right away if I could confirm it. I am almost certain that
the qcm6490 uses cortex a55 and a78 just like the sm7325 (and I
hope Luca Weiss can confirm that too)

If anyone with a sc7280 can read /proc/cpuinfo I would be very grateful.

Best wishes,
Danila




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