linux-kernel - [RFC v2 4/5] dts: bcm2837: add per-cpu clock devices

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Message-Id: <20190520104708.11980-5-nsaenzjulienne@suse.de>
Date:   Mon, 20 May 2019 12:47:06 +0200
From:   Nicolas Saenz Julienne <nsaenzjulienne@...e.de>
To:     stefan.wahren@...e.com, Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Ray Jui <rjui@...adcom.com>,
        Scott Branden <sbranden@...adcom.com>,
        bcm-kernel-feedback-list@...adcom.com
Cc:     mbrugger@...e.de, viresh.kumar@...aro.org, rjw@...ysocki.net,
        sboyd@...nel.org, eric@...olt.net, ptesarik@...e.com,
        linux-rpi-kernel@...ts.infradead.org, ssuloev@...altech.com,
        linux-clk@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        mturquette@...libre.com, linux-pm@...r.kernel.org,
        Nicolas Saenz Julienne <nsaenzjulienne@...e.de>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [RFC v2 4/5] dts: bcm2837: add per-cpu clock devices

The four CPUs share a same clock source called pllb_arm. The clock can
be scaled through the raspberrypi firmware interface.

Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@...e.de>
---
 arch/arm/boot/dts/bcm2837.dtsi | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm/boot/dts/bcm2837.dtsi b/arch/arm/boot/dts/bcm2837.dtsi
index beb6c502dadc..a8fea6696b42 100644
--- a/arch/arm/boot/dts/bcm2837.dtsi
+++ b/arch/arm/boot/dts/bcm2837.dtsi
@@ -44,6 +44,8 @@
 			reg = <0>;
 			enable-method = "spin-table";
 			cpu-release-addr = <0x0 0x000000d8>;
+			clocks = <&clocks BCM2835_PLLB_ARM>;
+			clock-names = "pllb_arm";
 		};
 
 		cpu1: cpu@1 {
@@ -52,6 +54,8 @@
 			reg = <1>;
 			enable-method = "spin-table";
 			cpu-release-addr = <0x0 0x000000e0>;
+			clocks = <&clocks BCM2835_PLLB_ARM>;
+			clock-names = "pllb_arm";
 		};
 
 		cpu2: cpu@2 {
@@ -60,6 +64,8 @@
 			reg = <2>;
 			enable-method = "spin-table";
 			cpu-release-addr = <0x0 0x000000e8>;
+			clocks = <&clocks BCM2835_PLLB_ARM>;
+			clock-names = "pllb_arm";
 		};
 
 		cpu3: cpu@3 {
@@ -68,6 +74,8 @@
 			reg = <3>;
 			enable-method = "spin-table";
 			cpu-release-addr = <0x0 0x000000f0>;
+			clocks = <&clocks BCM2835_PLLB_ARM>;
+			clock-names = "pllb_arm";
 		};
 	};
 };
-- 
2.21.0