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From:   Krzysztof Kozlowski <krzk@kernel.org>
To:     Rob Herring <robh+dt@kernel.org>, Kukjin Kim <kgene@kernel.org>,
        Krzysztof Kozlowski <krzk@kernel.org>,
        devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org,
        "Denis GNUtoo Carikli" <GNUtoo@cyberdimension.org>,
        Simon Shields <simon@lineageos.org>
Cc:     Marek Szyprowski <m.szyprowski@samsung.com>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>,
        Sylwester Nawrocki <snawrocki@kernel.org>
Subject: [PATCH 27/33] ARM: dts: exynos: Override thermal by label in Exynos4412 Odroids
Date:   Sun, 30 Aug 2020 15:51:54 +0200
Message-Id: <20200830135200.24304-27-krzk@kernel.org>
In-Reply-To: <20200830135200.24304-1-krzk@kernel.org>
References: <20200830135200.24304-1-krzk@kernel.org>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

Using full paths to extend or override a device tree node is error prone
since if there was a typo error, a new node will be created instead of
extending the node as it was desired.  This will lead to run-time errors
that could be hard to detect.

A mistyped label on the other hand, will cause a dtc compile error
(during build time).

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
---
 .../boot/dts/exynos4412-odroid-common.dtsi    | 34 ++++++--------
 arch/arm/boot/dts/exynos4412-odroidu3.dts     | 46 +++++++++----------
 2 files changed, 36 insertions(+), 44 deletions(-)

diff --git a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
index 6d3576e21ffa..ca3c78e0966c 100644
--- a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
+++ b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
@@ -66,25 +66,6 @@
 			clock-frequency = <24000000>;
 		};
 	};
-
-	thermal-zones {
-		cpu_thermal: cpu-thermal {
-			cooling-maps {
-				cooling_map0: map0 {
-				     /* Corresponds to 800MHz at freq_table */
-				     cooling-device = <&cpu0 7 7>, <&cpu1 7 7>,
-						      <&cpu2 7 7>, <&cpu3 7 7>;
-				};
-				cooling_map1: map1 {
-				     /* Corresponds to 200MHz at freq_table */
-				     cooling-device = <&cpu0 13 13>,
-						      <&cpu1 13 13>,
-						      <&cpu2 13 13>,
-						      <&cpu3 13 13>;
-			       };
-		       };
-		};
-	};
 };
 
 &bus_dmc {
@@ -172,6 +153,21 @@
 	};
 };
 
+&cpu_thermal {
+	cooling-maps {
+		cooling_map0: map0 {
+			/* Corresponds to 800MHz at freq_table */
+			cooling-device = <&cpu0 7 7>, <&cpu1 7 7>,
+					 <&cpu2 7 7>, <&cpu3 7 7>;
+		};
+		cooling_map1: map1 {
+			/* Corresponds to 200MHz at freq_table */
+			cooling-device = <&cpu0 13 13>, <&cpu1 13 13>,
+					 <&cpu2 13 13>, <&cpu3 13 13>;
+		};
+	};
+};
+
 &pinctrl_1 {
 	gpio_power_key: power_key {
 		samsung,pins = "gpx1-3";
diff --git a/arch/arm/boot/dts/exynos4412-odroidu3.dts b/arch/arm/boot/dts/exynos4412-odroidu3.dts
index 8ff243ba4542..b8549d846f86 100644
--- a/arch/arm/boot/dts/exynos4412-odroidu3.dts
+++ b/arch/arm/boot/dts/exynos4412-odroidu3.dts
@@ -37,31 +37,6 @@
 		#cooling-cells = <2>;
 		cooling-levels = <0 102 170 230>;
 	};
-
-	thermal-zones {
-		cpu_thermal: cpu-thermal {
-			cooling-maps {
-				map0 {
-				     trip = <&cpu_alert1>;
-				     cooling-device = <&cpu0 9 9>, <&cpu1 9 9>,
-						      <&cpu2 9 9>, <&cpu3 9 9>,
-						      <&fan0 1 2>;
-				};
-				map1 {
-				     trip = <&cpu_alert2>;
-				     cooling-device = <&cpu0 15 15>,
-						      <&cpu1 15 15>,
-						      <&cpu2 15 15>,
-						      <&cpu3 15 15>,
-						      <&fan0 2 3>;
-				};
-				map2 {
-				     trip = <&cpu_alert0>;
-				     cooling-device = <&fan0 0 1>;
-				};
-			};
-		};
-	};
 };
 
 &adc {
@@ -76,6 +51,27 @@
 	regulator-max-microvolt = <3300000>;
 };
 
+&cpu_thermal {
+	cooling-maps {
+		map0 {
+			trip = <&cpu_alert1>;
+			cooling-device = <&cpu0 9 9>, <&cpu1 9 9>,
+					 <&cpu2 9 9>, <&cpu3 9 9>,
+					 <&fan0 1 2>;
+		};
+		map1 {
+			trip = <&cpu_alert2>;
+			cooling-device = <&cpu0 15 15>, <&cpu1 15 15>,
+					 <&cpu2 15 15>, <&cpu3 15 15>,
+					 <&fan0 2 3>;
+		};
+		map2 {
+			trip = <&cpu_alert0>;
+			cooling-device = <&fan0 0 1>;
+		};
+	};
+};
+
 &hdmicec {
 	needs-hpd;
 };
-- 
2.17.1