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From:   Anson Huang <Anson.Huang@nxp.com>
To:     robh+dt@kernel.org, mark.rutland@arm.com, shawnguo@kernel.org,
        s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com,
        devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        linux-kernel@vger.kernel.org
Cc:     Linux-imx@nxp.com
Subject: [PATCH 2/3] ARM: dts: imx6dl: Add missing cooling device properties for CPUs
Date:   Thu, 24 Oct 2019 10:34:24 +0800
Message-Id: <1571884465-19720-2-git-send-email-Anson.Huang@nxp.com>
In-Reply-To: <1571884465-19720-1-git-send-email-Anson.Huang@nxp.com>
References: <1571884465-19720-1-git-send-email-Anson.Huang@nxp.com>
Sender: linux-kernel-owner@vger.kernel.org
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The cooling device properties "#cooling-cells" 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: Anson Huang <Anson.Huang@nxp.com>
---
 arch/arm/boot/dts/imx6dl.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/imx6dl.dtsi b/arch/arm/boot/dts/imx6dl.dtsi
index 2ed1031..008312e 100644
--- a/arch/arm/boot/dts/imx6dl.dtsi
+++ b/arch/arm/boot/dts/imx6dl.dtsi
@@ -64,6 +64,7 @@
 				396000	1175000
 			>;
 			clock-latency = <61036>; /* two CLK32 periods */
+			#cooling-cells = <2>;
 			clocks = <&clks IMX6QDL_CLK_ARM>,
 				 <&clks IMX6QDL_CLK_PLL2_PFD2_396M>,
 				 <&clks IMX6QDL_CLK_STEP>,
-- 
2.7.4