1 files changed, 58 insertions, 0 deletions
diff --git a/include/dt-bindings/gpio/nvidia,tegra238-gpio.h b/include/dt-bindings/gpio/nvidia,tegra238-gpio.h
new file mode 100644
index 000000000000..8a616a1df54c
--- /dev/null
+++ b/include/dt-bindings/gpio/nvidia,tegra238-gpio.h
@@ -0,0 +1,58 @@
+/* SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause */
+/* Copyright (c) 2026, NVIDIA CORPORATION. All rights reserved. */
+
+/*
+ * This header provides constants for binding nvidia,tegra238-gpio*.
+ *
+ * The first cell in Tegra's GPIO specifier is the GPIO ID. The macros below
+ * provide names for this.
+ *
+ * The second cell contains standard flag values specified in gpio.h.
+ */
+
+#ifndef _DT_BINDINGS_GPIO_TEGRA238_GPIO_H
+#define _DT_BINDINGS_GPIO_TEGRA238_GPIO_H
+
+#include <dt-bindings/gpio/gpio.h>
+
+/* GPIOs implemented by main GPIO controller */
+#define TEGRA238_MAIN_GPIO_PORT_A   0
+#define TEGRA238_MAIN_GPIO_PORT_B   1
+#define TEGRA238_MAIN_GPIO_PORT_C   2
+#define TEGRA238_MAIN_GPIO_PORT_D   3
+#define TEGRA238_MAIN_GPIO_PORT_E   4
+#define TEGRA238_MAIN_GPIO_PORT_F   5
+#define TEGRA238_MAIN_GPIO_PORT_G   6
+#define TEGRA238_MAIN_GPIO_PORT_H   7
+#define TEGRA238_MAIN_GPIO_PORT_J   8
+#define TEGRA238_MAIN_GPIO_PORT_K   9
+#define TEGRA238_MAIN_GPIO_PORT_L  10
+#define TEGRA238_MAIN_GPIO_PORT_M  11
+#define TEGRA238_MAIN_GPIO_PORT_N  12
+#define TEGRA238_MAIN_GPIO_PORT_P  13
+#define TEGRA238_MAIN_GPIO_PORT_Q  14
+#define TEGRA238_MAIN_GPIO_PORT_R  15
+#define TEGRA238_MAIN_GPIO_PORT_S  16
+#define TEGRA238_MAIN_GPIO_PORT_T  17
+#define TEGRA238_MAIN_GPIO_PORT_U  18
+#define TEGRA238_MAIN_GPIO_PORT_V  19
+#define TEGRA238_MAIN_GPIO_PORT_W  20
+#define TEGRA238_MAIN_GPIO_PORT_X  21
+
+#define TEGRA238_MAIN_GPIO(port, offset) \
+	((TEGRA238_MAIN_GPIO_PORT_##port * 8) + (offset))
+
+/* GPIOs implemented by AON GPIO controller */
+#define TEGRA238_AON_GPIO_PORT_AA 0
+#define TEGRA238_AON_GPIO_PORT_BB 1
+#define TEGRA238_AON_GPIO_PORT_CC 2
+#define TEGRA238_AON_GPIO_PORT_DD 3
+#define TEGRA238_AON_GPIO_PORT_EE 4
+#define TEGRA238_AON_GPIO_PORT_FF 5
+#define TEGRA238_AON_GPIO_PORT_GG 6
+#define TEGRA238_AON_GPIO_PORT_HH 7
+
+#define TEGRA238_AON_GPIO(port, offset) \
+	((TEGRA238_AON_GPIO_PORT_##port * 8) + (offset))
+
+#endif