linux-kernel - [PATCH v1 1/2] arm64: dts: imx8-apalis: add can power-up delay on ixora board

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Message-Id: <20231020153022.57858-2-andrejs.cainikovs@gmail.com>
Date:   Fri, 20 Oct 2023 17:30:21 +0200
From:   Andrejs Cainikovs <andrejs.cainikovs@...il.com>
To:     Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Cc:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Andrejs Cainikovs <andrejs.cainikovs@...adex.com>
Subject: [PATCH v1 1/2] arm64: dts: imx8-apalis: add can power-up delay on ixora board

From: Andrejs Cainikovs <andrejs.cainikovs@...adex.com>

Newer variants of Ixora boards require a power-up delay when powering up
the CAN transceiver of up to 1ms.

Signed-off-by: Andrejs Cainikovs <andrejs.cainikovs@...adex.com>
---
 arch/arm64/boot/dts/freescale/imx8-apalis-ixora-v1.2.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8-apalis-ixora-v1.2.dtsi b/arch/arm64/boot/dts/freescale/imx8-apalis-ixora-v1.2.dtsi
index 72136c436a70..f6654fdcb147 100644
--- a/arch/arm64/boot/dts/freescale/imx8-apalis-ixora-v1.2.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8-apalis-ixora-v1.2.dtsi
@@ -68,6 +68,7 @@ reg_can1_supply: regulator-can1-supply {
 		gpio = <&lsio_gpio5 22 GPIO_ACTIVE_HIGH>;
 		enable-active-high;
 		regulator-name = "can1_supply";
+		startup-delay-us = <1000>;
 	};
 
 	reg_can2_supply: regulator-can2-supply {
@@ -77,6 +78,7 @@ reg_can2_supply: regulator-can2-supply {
 		gpio = <&lsio_gpio2 8 GPIO_ACTIVE_HIGH>;
 		enable-active-high;
 		regulator-name = "can2_supply";
+		startup-delay-us = <1000>;
 	};
 
 	reg_usb_host_vbus: regulator-usb-host-vbus {
-- 
2.34.1