linux-kernel - [PATCH] ARM: dts: imx6ull-dhcom: Remove /omit-if-no-ref/ from node usdhc1-pwrseq

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Date: Thu, 25 Jan 2024 13:46:21 +0100
From: Christoph Niedermaier <cniedermaier@...electronics.com>
To: <linux-arm-kernel@...ts.infradead.org>
CC: Christoph Niedermaier <cniedermaier@...electronics.com>, Rob Herring
	<robh+dt@...nel.org>, Krzysztof Kozlowski
	<krzysztof.kozlowski+dt@...aro.org>, Conor Dooley <conor+dt@...nel.org>,
	Shawn Guo <shawnguo@...nel.org>, Marek Vasut <marex@...x.de>, Fabio Estevam
	<festevam@...x.de>, NXP Linux Team <linux-imx@....com>,
	<kernel@...electronics.com>, <devicetree@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>
Subject: [PATCH] ARM: dts: imx6ull-dhcom: Remove /omit-if-no-ref/ from node usdhc1-pwrseq

Remove /omit-if-no-ref/ from node usdhc1-pwrseq, because if the compile
flag -@ (include symbols) is used the node will always be there. In this
case, GPIO H is not released and therefore cannot be used. Therefore,
remove this node manually from the corresponding devicetree file and
don't rely on /omit-if-no-ref/.

Signed-off-by: Christoph Niedermaier <cniedermaier@...electronics.com>
---
Cc: Rob Herring <robh+dt@...nel.org>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Cc: Conor Dooley <conor+dt@...nel.org>
Cc: Shawn Guo <shawnguo@...nel.org>
Cc: Marek Vasut <marex@...x.de>
Cc: Fabio Estevam <festevam@...x.de>
Cc: NXP Linux Team <linux-imx@....com>
Cc: kernel@...electronics.com
Cc: devicetree@...r.kernel.org
Cc: linux-kernel@...r.kernel.org
To: linux-arm-kernel@...ts.infradead.org
---
 arch/arm/boot/dts/nxp/imx/imx6ull-dhcom-som-cfg-sdcard.dtsi | 4 +++-
 arch/arm/boot/dts/nxp/imx/imx6ull-dhcom-som.dtsi            | 2 +-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/nxp/imx/imx6ull-dhcom-som-cfg-sdcard.dtsi b/arch/arm/boot/dts/nxp/imx/imx6ull-dhcom-som-cfg-sdcard.dtsi
index 040421f9c970..5e39f8dc1351 100644
--- a/arch/arm/boot/dts/nxp/imx/imx6ull-dhcom-som-cfg-sdcard.dtsi
+++ b/arch/arm/boot/dts/nxp/imx/imx6ull-dhcom-som-cfg-sdcard.dtsi
@@ -14,10 +14,12 @@
  */
 
 /*
- * To use usdhc1 as SD card, the WiFi node must be deleted.
+ * To use usdhc1 as SD card, the WiFi node must be deleted. The associated
+ * pwrseq node is also deleted in order to ensure that GPIO H is released.
  * BT is also not available, so remove BT from the UART node.
  */
 /delete-node/ &brcmf;
+/delete-node/ &usdhc1_pwrseq;
 /delete-node/ &bluetooth;
 
 / {
diff --git a/arch/arm/boot/dts/nxp/imx/imx6ull-dhcom-som.dtsi b/arch/arm/boot/dts/nxp/imx/imx6ull-dhcom-som.dtsi
index 830b5a5064f2..f914fe3818c2 100644
--- a/arch/arm/boot/dts/nxp/imx/imx6ull-dhcom-som.dtsi
+++ b/arch/arm/boot/dts/nxp/imx/imx6ull-dhcom-som.dtsi
@@ -52,7 +52,7 @@
 	};
 
 	/* SoM with WiFi/BT: WiFi pin WL_REG_ON is connected to a DHCOM GPIO */
-	/omit-if-no-ref/ usdhc1_pwrseq: usdhc1-pwrseq {
+	usdhc1_pwrseq: usdhc1-pwrseq {
 		compatible = "mmc-pwrseq-simple";
 		reset-gpios = <&gpio5 9 GPIO_ACTIVE_LOW>; /* GPIO H */
 	};
-- 
2.11.0