Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
From:   Sasha Levin <Alexander.Levin@microsoft.com>
To:     "stable@vger.kernel.org" <stable@vger.kernel.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
CC:     Viresh Kumar <viresh.kumar@linaro.org>,
        Shawn Guo <shawnguo@kernel.org>,
        Sasha Levin <Alexander.Levin@microsoft.com>
Subject: [PATCH AUTOSEL 4.14 33/87] ARM: dts: ls1021a: Add missing cooling
 device properties for CPUs
Thread-Topic: [PATCH AUTOSEL 4.14 33/87] ARM: dts: ls1021a: Add missing
 cooling device properties for CPUs
Thread-Index: AQHUTjLoQ8S9MQWzUUW1Fgv2mjE+pw==
Date:   Mon, 17 Sep 2018 03:02:44 +0000
Message-ID: <20180917030220.245686-33-alexander.levin@microsoft.com>
References: <20180917030220.245686-1-alexander.levin@microsoft.com>
In-Reply-To: <20180917030220.245686-1-alexander.levin@microsoft.com>
Accept-Language: en-US
Content-Language: en-US
received-spf: None (protection.outlook.com: microsoft.com does not designate
 permitted sender hosts)
spamdiagnosticoutput: 1:99
spamdiagnosticmetadata: NSPM
Content-Type: text/plain; charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0
X-MS-Exchange-CrossTenant-Network-Message-Id: 00142819-656c-4f55-3b42-08d61c4a3e86
X-MS-Exchange-CrossTenant-originalarrivaltime: 17 Sep 2018 03:02:44.8687
 (UTC)
X-MS-Exchange-CrossTenant-fromentityheader: Hosted
X-MS-Exchange-CrossTenant-id: 72f988bf-86f1-41af-91ab-2d7cd011db47
X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY4PR21MB0776
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

From: Viresh Kumar <viresh.kumar@linaro.org>

[ Upstream commit 47768f372eae030db6fab5225f9504a820d2c07f ]

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.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
 arch/arm/boot/dts/ls1021a.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/ls1021a.dtsi b/arch/arm/boot/dts/ls1021a.dts=
i
index 379b4a03cfe2..2d20f60947b9 100644
--- a/arch/arm/boot/dts/ls1021a.dtsi
+++ b/arch/arm/boot/dts/ls1021a.dtsi
@@ -84,6 +84,7 @@
 			device_type =3D "cpu";
 			reg =3D <0xf01>;
 			clocks =3D <&clockgen 1 0>;
+			#cooling-cells =3D <2>;
 		};
 	};
=20
--=20
2.17.1