From: "Clément Péron" <peron.clem@gmail.com>
To: Maxime Ripard <mripard@kernel.org>, Chen-Yu Tsai <wens@csie.org>,
Rob Herring <robh+dt@kernel.org>
Cc: devicetree@vger.kernel.org, "Yangtao Li" <tiny.windzz@gmail.com>,
linux-kernel@vger.kernel.org,
linux-sunxi <linux-sunxi@googlegroups.com>,
"Clément Péron" <peron.clem@gmail.com>,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH v4 1/2] arm64: dts: allwinner: h6: Add clock to CPU cores
Date: Mon, 20 Apr 2020 14:46:33 +0200 [thread overview]
Message-ID: <20200420124634.32726-2-peron.clem@gmail.com> (raw)
In-Reply-To: <20200420124634.32726-1-peron.clem@gmail.com>
From: Yangtao Li <tiny.windzz@gmail.com>
The ARM CPU cores are fed by the CPU clock from the CCU. Add a
reference to the clock for each CPU core, along with the clock
transition latency.
Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: Clément Péron <peron.clem@gmail.com>
---
arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
index a5ee68388bd3..370e77b86fe1 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
@@ -25,6 +25,8 @@
device_type = "cpu";
reg = <0>;
enable-method = "psci";
+ clocks = <&ccu CLK_CPUX>;
+ clock-latency-ns = <244144>; /* 8 32k periods */
};
cpu1: cpu@1 {
@@ -32,6 +34,8 @@
device_type = "cpu";
reg = <1>;
enable-method = "psci";
+ clocks = <&ccu CLK_CPUX>;
+ clock-latency-ns = <244144>; /* 8 32k periods */
};
cpu2: cpu@2 {
@@ -39,6 +43,8 @@
device_type = "cpu";
reg = <2>;
enable-method = "psci";
+ clocks = <&ccu CLK_CPUX>;
+ clock-latency-ns = <244144>; /* 8 32k periods */
};
cpu3: cpu@3 {
@@ -46,6 +52,8 @@
device_type = "cpu";
reg = <3>;
enable-method = "psci";
+ clocks = <&ccu CLK_CPUX>;
+ clock-latency-ns = <244144>; /* 8 32k periods */
};
};
--
2.20.1
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WARNING: multiple messages have this Message-ID (diff)
From: "Clément Péron" <peron.clem@gmail.com>
To: Maxime Ripard <mripard@kernel.org>, Chen-Yu Tsai <wens@csie.org>,
Rob Herring <robh+dt@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org,
linux-sunxi <linux-sunxi@googlegroups.com>,
"Yangtao Li" <tiny.windzz@gmail.com>,
"Clément Péron" <peron.clem@gmail.com>
Subject: [PATCH v4 1/2] arm64: dts: allwinner: h6: Add clock to CPU cores
Date: Mon, 20 Apr 2020 14:46:33 +0200 [thread overview]
Message-ID: <20200420124634.32726-2-peron.clem@gmail.com> (raw)
In-Reply-To: <20200420124634.32726-1-peron.clem@gmail.com>
From: Yangtao Li <tiny.windzz@gmail.com>
The ARM CPU cores are fed by the CPU clock from the CCU. Add a
reference to the clock for each CPU core, along with the clock
transition latency.
Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: Clément Péron <peron.clem@gmail.com>
---
arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
index a5ee68388bd3..370e77b86fe1 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
@@ -25,6 +25,8 @@
device_type = "cpu";
reg = <0>;
enable-method = "psci";
+ clocks = <&ccu CLK_CPUX>;
+ clock-latency-ns = <244144>; /* 8 32k periods */
};
cpu1: cpu@1 {
@@ -32,6 +34,8 @@
device_type = "cpu";
reg = <1>;
enable-method = "psci";
+ clocks = <&ccu CLK_CPUX>;
+ clock-latency-ns = <244144>; /* 8 32k periods */
};
cpu2: cpu@2 {
@@ -39,6 +43,8 @@
device_type = "cpu";
reg = <2>;
enable-method = "psci";
+ clocks = <&ccu CLK_CPUX>;
+ clock-latency-ns = <244144>; /* 8 32k periods */
};
cpu3: cpu@3 {
@@ -46,6 +52,8 @@
device_type = "cpu";
reg = <3>;
enable-method = "psci";
+ clocks = <&ccu CLK_CPUX>;
+ clock-latency-ns = <244144>; /* 8 32k periods */
};
};
--
2.20.1
next prev parent reply other threads:[~2020-04-20 12:46 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-20 12:46 [PATCH v4 0/2] Add support for Allwinner H6 DVFS Clément Péron
2020-04-20 12:46 ` Clément Péron
2020-04-20 12:46 ` Clément Péron [this message]
2020-04-20 12:46 ` [PATCH v4 1/2] arm64: dts: allwinner: h6: Add clock to CPU cores Clément Péron
2020-04-20 12:46 ` [PATCH v4 2/2] arm64: dts: allwinner: h6: Add thermal trip points/cooling map Clément Péron
2020-04-20 12:46 ` Clément Péron
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