linux-kernel - [PATCH] arm64: dts: VIM3: Set the rates of the clocks for the NPU

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Date:   Wed, 26 Apr 2023 07:28:31 +0200
From:   Tomeu Vizoso <tomeu@...euvizoso.net>
To:     linux-kernel@...r.kernel.org
Cc:     Tomeu Vizoso <tomeu@...euvizoso.net>,
        Lucas Stach <l.stach@...gutronix.de>,
        Rob Herring <robh+dt@...nel.org>,
        Neil Armstrong <narmstrong@...libre.com>,
        Kevin Hilman <khilman@...libre.com>,
        Jerome Brunet <jbrunet@...libre.com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED
        DEVICE TREE BINDINGS),
        linux-arm-kernel@...ts.infradead.org (moderated list:ARM/Amlogic Meson
        SoC support),
        linux-amlogic@...ts.infradead.org (open list:ARM/Amlogic Meson SoC
        support)
Subject: [PATCH] arm64: dts: VIM3: Set the rates of the clocks for the NPU

Otherwise they are left at 24MHz and the NPU runs very slowly.

Signed-off-by: Tomeu Vizoso <tomeu@...euvizoso.net>
Suggested-by: Lucas Stach <l.stach@...gutronix.de>
---
 arch/arm64/boot/dts/amlogic/meson-g12b-a311d-khadas-vim3.dts | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-g12b-a311d-khadas-vim3.dts b/arch/arm64/boot/dts/amlogic/meson-g12b-a311d-khadas-vim3.dts
index 4e8266056bca..3a14b21998c4 100644
--- a/arch/arm64/boot/dts/amlogic/meson-g12b-a311d-khadas-vim3.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-g12b-a311d-khadas-vim3.dts
@@ -52,6 +52,9 @@ galcore {
 
 &npu {
 	status = "okay";
+	assigned-clocks = <&clkc CLKID_NNA_CORE_CLK>,
+			  <&clkc CLKID_NNA_AXI_CLK>;
+	assigned-clock-rates = <800000000>, <800000000>;
 };
 
 /*
-- 
2.38.1