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 3/3] ARM: dts: imx7d: Add missing cooling device properties for CPUs
Date: Thu, 24 Oct 2019 10:34:25 +0800 [thread overview]
Message-ID: <1571884465-19720-3-git-send-email-Anson.Huang@nxp.com> (raw)
In-Reply-To: <1571884465-19720-1-git-send-email-Anson.Huang@nxp.com>
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/imx7d.dtsi | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm/boot/dts/imx7d.dtsi b/arch/arm/boot/dts/imx7d.dtsi
index 2792767..d8acd7c 100644
--- a/arch/arm/boot/dts/imx7d.dtsi
+++ b/arch/arm/boot/dts/imx7d.dtsi
@@ -22,6 +22,7 @@
reg = <1>;
clock-frequency = <996000000>;
operating-points-v2 = <&cpu0_opp_table>;
+ #cooling-cells = <2>;
cpu-idle-states = <&cpu_sleep_wait>;
};
};
--
2.7.4
next prev parent reply other threads:[~2019-10-24 2:37 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-24 2:34 [PATCH 1/3] ARM: dts: imx6q: Add missing cooling device properties for CPUs Anson Huang
2019-10-24 2:34 ` [PATCH 2/3] ARM: dts: imx6dl: " Anson Huang
2019-10-24 2:34 ` Anson Huang [this message]
2019-10-28 8:41 ` [PATCH 1/3] ARM: dts: imx6q: " Shawn Guo
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