From mboxrd@z Thu Jan 1 00:00:00 1970 From: Viresh Kumar Subject: [PATCH 09/15] arm: dts: omap: Add missing cooling device properties for CPUs Date: Fri, 25 May 2018 16:01:55 +0530 Message-ID: <7aa1c7c6d1e76b551ed74512af797db28be8925f.1527244201.git.viresh.kumar@linaro.org> References: Return-path: In-Reply-To: In-Reply-To: References: Sender: linux-kernel-owner@vger.kernel.org To: arm@kernel.org, =?UTF-8?q?Beno=C3=AEt=20Cousson?= , Tony Lindgren , Rob Herring , Mark Rutland Cc: Viresh Kumar , Vincent Guittot , ionela.voinescu@arm.com, Daniel Lezcano , chris.redpath@arm.com, linux-omap@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org List-Id: devicetree@vger.kernel.org The cooling device properties, like "#cooling-cells" and "dynamic-power-coefficient", should either be present for all the CPUs of a cluster or none. If these are present only for a subset of CPUs of a cluster then things will start falling apart as soon as the CPUs are brought online in a different order. For example, this will happen because the operating system looks for such properties in the CPU node it is trying to bring up, so that it can register a cooling device. Add such missing properties. Fix other missing properties (clocks, supply, clock latency) as well to make it all work. Signed-off-by: Viresh Kumar --- arch/arm/boot/dts/omap5.dtsi | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/arch/arm/boot/dts/omap5.dtsi b/arch/arm/boot/dts/omap5.dtsi index 732b61a0e990..574ac11c0489 100644 --- a/arch/arm/boot/dts/omap5.dtsi +++ b/arch/arm/boot/dts/omap5.dtsi @@ -61,6 +61,20 @@ device_type = "cpu"; compatible = "arm,cortex-a15"; reg = <0x1>; + + operating-points = < + /* kHz uV */ + 1000000 1060000 + 1500000 1250000 + >; + + clocks = <&dpll_mpu_ck>; + clock-names = "cpu"; + + clock-latency = <300000>; /* From omap-cpufreq driver */ + + /* cooling options */ + #cooling-cells = <2>; /* min followed by max */ }; }; -- 2.15.0.194.g9af6a3dea062