linux-kernel - [PATCH v2 2/3] arm64: dts: ti: k3-am62x-sk-common: Remove the unused config from USB1

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Message-ID: <20250901122835.3022850-3-a-kaur@ti.com>
Date: Mon, 1 Sep 2025 17:58:34 +0530
From: Akashdeep Kaur <a-kaur@...com>
To: <praneeth@...com>, <nm@...com>, <afd@...com>, <vigneshr@...com>,
        <d-gole@...com>, <kristo@...nel.org>, <robh@...nel.org>,
        <krzk+dt@...nel.org>, <conor+dt@...nel.org>,
        <linux-arm-kernel@...ts.infradead.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
CC: <vishalm@...com>, <sebin.francis@...com>
Subject: [PATCH v2 2/3] arm64: dts: ti: k3-am62x-sk-common: Remove the unused config from USB1_DRVVBUS

After the SoC has entered the DeepSleep low power mode, USB1 can be
used to wakeup the SoC based on USB events triggered by USB devices.
This requires that the pin corresponding to the Type-A connector
remains pulled up even after the SoC has entered the DeepSleep low power
mode.
For that, either DeepSleep pullup can be selected or the pin can have the
same configuration that it had when SoC was in active mode.
In order for DeepSleep configuration to take effect, the DeepSleep
control bit has to be enabled.
Remove the DeepSleep state configuration from USB1_DRVBUS pin as it is
anyways not taking effect (DeepSleep control bit is not set).

This reverts commit 527f884d2d94981016e181dcbd4c4b5bf597c0ad.

Signed-off-by: Akashdeep Kaur <a-kaur@...com>
---
 arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi b/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi
index 13e1d36123d51..d3bed23134ca0 100644
--- a/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi
@@ -249,7 +249,7 @@ AM62X_IOPAD(0x12c, PIN_OUTPUT, 0) /* (AD19/V15) RGMII1_TX_CTL */

 	main_usb1_pins_default: main-usb1-default-pins {
 		pinctrl-single,pins = <
-			AM62X_IOPAD(0x0258, PIN_OUTPUT | PIN_DS_PULLUD_ENABLE | PIN_DS_PULL_UP, 0) /* (F18/E16) USB1_DRVVBUS */
+			AM62X_IOPAD(0x0258, PIN_OUTPUT, 0) /* (F18/E16) USB1_DRVVBUS */
 		>;
 	};

-- 
2.34.1