linux-kernel - [PATCH] arm64: dts: ti: k3-j721e-sk: Fix pinmux for power regulator

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Message-ID: <20251118114954.1838514-1-s-vadapalli@ti.com>
Date: Tue, 18 Nov 2025 17:19:22 +0530
From: Siddharth Vadapalli <s-vadapalli@...com>
To: <nm@...com>, <vigneshr@...com>, <kristo@...nel.org>, <robh@...nel.org>,
	<krzk+dt@...nel.org>, <conor+dt@...nel.org>, <y-abhilashchandra@...com>,
	<u-kumar1@...com>
CC: <stable@...r.kernel.org>, <devicetree@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
	<srk@...com>, <s-vadapalli@...com>
Subject: [PATCH] arm64: dts: ti: k3-j721e-sk: Fix pinmux for power regulator

Commit under Fixes added support for power regulators on the J721E SK
board. However, while doing so, it incorrectly assigned a non-existent
pinmux within the WKUP Pinmux region (pinctrl@...1c000) instead of using
the MAIN Pinmux region (pinctrl@...000). This leads to the following
silent failure:

    pinctrl-single 4301c000.pinctrl: mux offset out of range: 0x1dc (0x178)

The datasheet for the J721E SoC [0] specifies on page 142 that the
pinmux of interest which is Ball Y1 is PADCONFIG119 and the address
corresponding to it is 0x00011C1DC which belongs to the MAIN Pinmux
region.

Hence, fix this.

[0]: https://www.ti.com/lit/ds/symlink/tda4vm.pdf
Fixes: 97b67cc102dc ("arm64: dts: ti: k3-j721e-sk: Add DT nodes for power regulators")
Cc: <stable@...r.kernel.org>
Signed-off-by: Siddharth Vadapalli <s-vadapalli@...com>
---

Hello,

This patch is based on commit
e7c375b18160 Merge tag 'vfs-6.18-rc7.fixes' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs
of Mainline Linux.

Regards,
Siddharth.

 arch/arm64/boot/dts/ti/k3-j721e-sk.dts | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-j721e-sk.dts b/arch/arm64/boot/dts/ti/k3-j721e-sk.dts
index 5e5784ef6f85..77dcc160eda3 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-j721e-sk.dts
@@ -474,6 +474,12 @@ rpi_header_gpio1_pins_default: rpi-header-gpio1-default-pins {
 			J721E_IOPAD(0x234, PIN_INPUT, 7) /* (U3) EXT_REFCLK1.GPIO1_12 */
 		>;
 	};
+
+	vdd_sd_dv_pins_default: vdd-sd-dv-default-pins {
+		pinctrl-single,pins = <
+			J721E_IOPAD(0x1dc, PIN_OUTPUT, 7) /* (Y1) SPI1_CLK.GPIO0_118 */
+		>;
+	};
 };
 
 &wkup_pmx0 {
@@ -536,12 +542,6 @@ J721E_WKUP_IOPAD(0xd4, PIN_OUTPUT, 7) /* (G26) WKUP_GPIO0_9 */
 		>;
 	};
 
-	vdd_sd_dv_pins_default: vdd-sd-dv-default-pins {
-		pinctrl-single,pins = <
-			J721E_IOPAD(0x1dc, PIN_OUTPUT, 7) /* (Y1) SPI1_CLK.GPIO0_118 */
-		>;
-	};
-
 	wkup_uart0_pins_default: wkup-uart0-default-pins {
 		pinctrl-single,pins = <
 			J721E_WKUP_IOPAD(0xa0, PIN_INPUT, 0) /* (J29) WKUP_UART0_RXD */
-- 
2.51.1