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From: Akashdeep Kaur <a-kaur@ti.com>
To: <praneeth@ti.com>, <nm@ti.com>, <afd@ti.com>, <vigneshr@ti.com>,
	<d-gole@ti.com>, <kristo@kernel.org>, <robh@kernel.org>,
	<krzk+dt@kernel.org>, <conor+dt@kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Cc: <vishalm@ti.com>, <sebin.francis@ti.com>
Subject: [PATCH v3 2/3] arm64: dts: ti: k3-am62x-sk-common: Remove the unused cfg in USB1_DRVVBUS
Date: Tue, 2 Sep 2025 12:49:16 +0530	[thread overview]
Message-ID: <20250902071917.1616729-3-a-kaur@ti.com> (raw)
In-Reply-To: <20250902071917.1616729-1-a-kaur@ti.com>

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 configuration can be selected or the pin
can have the same configuration that it had when SoC was in active mode.
But, in order for DeepSleep configuration to take effect, the DeepSleep
control bit has to be enabled.
Remove the unnecessary DeepSleep state configuration from USB1_DRVBUS pin,
as the DeepSleep control bit is not set and the active configuration is
sufficient to keep the pin pulled up. This simplifies the setup and removes
redundant configuration.

This reverts commit 527f884d2d94981016e181dcbd4c4b5bf597c0ad.

Signed-off-by: Akashdeep Kaur <a-kaur@ti.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 13e1d36123d5..d3bed23134ca 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



  parent reply	other threads:[~2025-09-02  7:30 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-09-02  7:19 [PATCH v3 0/3] Remove unused bits from dts and add support for remaining pinctrl macros Akashdeep Kaur
2025-09-02  7:19 ` [PATCH v3 1/3] arm64: dts: ti: k3-am62p5-sk: Remove the unused cfg in USB1_DRVVBUS Akashdeep Kaur
2025-09-04  8:29   ` Dhruva Gole
2025-09-02  7:19 ` Akashdeep Kaur [this message]
2025-09-04  8:28   ` [PATCH v3 2/3] arm64: dts: ti: k3-am62x-sk-common: " Dhruva Gole
2025-09-02  7:19 ` [PATCH v3 3/3] arm64: dts: ti: k3-pinctrl: Add the remaining macros Akashdeep Kaur
2025-09-04  6:02   ` Sebin Francis
2025-09-04 11:31     ` Akashdeep Kaur
2025-09-04  8:57   ` Kumar, Udit
2025-09-04 11:39     ` Akashdeep Kaur
2025-09-04 12:36       ` Kumar, Udit
2025-09-04 13:46         ` Akashdeep Kaur
2025-09-05  4:57           ` Kumar, Udit
2025-09-05  5:18             ` Akashdeep Kaur

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