linux-kernel - [PATCH v2 05/28] ARM: dts: exynos: override pins by label in Peach Pit

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Message-Id: <20220111201426.326777-6-krzysztof.kozlowski@canonical.com>
Date:   Tue, 11 Jan 2022 21:14:03 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
To:     Tomasz Figa <tomasz.figa@...il.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>,
        Sylwester Nawrocki <s.nawrocki@...sung.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org, linux-gpio@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Marek Szyprowski <m.szyprowski@...sung.com>,
        Sam Protsenko <semen.protsenko@...aro.org>,
        Chanho Park <chanho61.park@...sung.com>,
        Alim Akhtar <alim.akhtar@...il.com>,
        Alim Akhtar <alim.akhtar@...sung.com>
Subject: [PATCH v2 05/28] ARM: dts: exynos: override pins by label in Peach Pit

Using node paths to extend or override a device tree node is error
prone.  If there was a typo error, a new node will be created instead of
extending the existing node.  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 <krzysztof.kozlowski@...onical.com>
Reviewed-by: Alim Akhtar <alim.akhtar@...sung.com>
---
 arch/arm/boot/dts/exynos5420-peach-pit.dts | 44 +++++++++++-----------
 1 file changed, 22 insertions(+), 22 deletions(-)

diff --git a/arch/arm/boot/dts/exynos5420-peach-pit.dts b/arch/arm/boot/dts/exynos5420-peach-pit.dts
index e76fb104db19..1ae5528e9ebf 100644
--- a/arch/arm/boot/dts/exynos5420-peach-pit.dts
+++ b/arch/arm/boot/dts/exynos5420-peach-pit.dts
@@ -868,27 +868,26 @@ pmic_dvs_1: pmic-dvs-1 {
 	};
 };
 
-&pinctrl_1 {
-	/* Adjust WiFi drive strengths lower for EMI */
-	sd1_clk: sd1-clk {
-		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV3>;
-	};
+/* pinctrl_1 */
+/* Adjust WiFi drive strengths lower for EMI */
+&sd1_bus1 {
+	samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV3>;
+};
 
-	sd1_cmd: sd1-cmd {
-		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV3>;
-	};
+&sd1_bus4 {
+	samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV3>;
+};
 
-	sd1_bus1: sd1-bus-width1 {
-		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV3>;
-	};
+&sd1_bus8 {
+	samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV3>;
+};
 
-	sd1_bus4: sd1-bus-width4 {
-		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV3>;
-	};
+&sd1_clk {
+	samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV3>;
+};
 
-	sd1_bus8: sd1-bus-width8 {
-		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV3>;
-	};
+&sd1_cmd {
+	samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV3>;
 };
 
 &pinctrl_2 {
@@ -907,12 +906,13 @@ pmic_dvs_3: pmic-dvs-3 {
 	};
 };
 
-&pinctrl_3 {
-	/* Drive SPI lines at x2 for better integrity */
-	spi2-bus {
-		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV3>;
-	};
+/* pinctrl_3*/
+/* Drive SPI lines at x2 for better integrity */
+&spi2_bus {
+	samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV3>;
+};
 
+&pinctrl_3 {
 	/* Drive SPI chip select at x2 for better integrity */
 	ec_spi_cs: ec-spi-cs {
 		samsung,pins = "gpb1-2";
-- 
2.32.0