arm64: dts: freescale: imx93-tqma9352: Limit BUCK2 to 600mV

TQMa9352 is only using LPDDR4X, so the BUCK2 regulator should be fixed
at 600MV.

Fixes: d2858e6bd36c ("arm64: dts: freescale: imx93-tqma9352: Add PMIC node")
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Acked-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm64/boot/dts/freescale/imx93-tqma9352.dtsi b/arch/arm64/boot/dts/freescale/imx93-tqma9352.dtsi
index 2cabdae2422739c1f38d4adb6652c87be70f9dd8..09385b058664c34054ebf2b5ae37ddada62058a3 100644 (file)
--- a/arch/arm64/boot/dts/freescale/imx93-tqma9352.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx93-tqma9352.dtsi
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: (GPL-2.0-or-later OR MIT)
 /*
- * Copyright (c) 2022 TQ-Systems GmbH <linux@ew.tq-group.com>,
+ * Copyright (c) 2022-2025 TQ-Systems GmbH <linux@ew.tq-group.com>,
  * D-82229 Seefeld, Germany.
  * Author: Markus Niebel
  */
@@ -110,11 +110,11 @@
                                regulator-ramp-delay = <3125>;
                        };
 
-                       /* V_DDRQ - 1.1 LPDDR4 or 0.6 LPDDR4X */
+                       /* V_DDRQ - 0.6 V for LPDDR4X */
                        buck2: BUCK2 {
                                regulator-name = "BUCK2";
                                regulator-min-microvolt = <600000>;
-                               regulator-max-microvolt = <1100000>;
+                               regulator-max-microvolt = <600000>;
                                regulator-boot-on;
                                regulator-always-on;
                                regulator-ramp-delay = <3125>;