[PATCH 1/2] dt-bindings: gpio: Add Tegra241 support
From: Thierry Reding <hidden>
Date: 2021-12-16 14:10:21
Also in:
linux-gpio
Subsystem:
gpio subsystem, open firmware and flattened device tree bindings, the rest · Maintainers:
Linus Walleij, Bartosz Golaszewski, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
From: Akhil R <akhilrajeev@nvidia.com> Add the port definitions for the main and AON GPIO controllers found on Tegra241 (Grace). Signed-off-by: Akhil R <akhilrajeev@nvidia.com> Signed-off-by: Thierry Reding <redacted> --- include/dt-bindings/gpio/tegra241-gpio.h | 42 ++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 include/dt-bindings/gpio/tegra241-gpio.h
diff --git a/include/dt-bindings/gpio/tegra241-gpio.h b/include/dt-bindings/gpio/tegra241-gpio.h
new file mode 100644
index 000000000000..80cee3016be6
--- /dev/null
+++ b/include/dt-bindings/gpio/tegra241-gpio.h@@ -0,0 +1,42 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (c) 2021, NVIDIA CORPORATION. All rights reserved. */ + +/* + * This header provides constants for the nvidia,tegra241-gpio DT binding. + * + * 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_TEGRA241_GPIO_H +#define _DT_BINDINGS_GPIO_TEGRA241_GPIO_H + +#include <dt-bindings/gpio/gpio.h> + +/* GPIOs implemented by main GPIO controller */ +#define TEGRA241_MAIN_GPIO_PORT_A 0 +#define TEGRA241_MAIN_GPIO_PORT_B 1 +#define TEGRA241_MAIN_GPIO_PORT_C 2 +#define TEGRA241_MAIN_GPIO_PORT_D 3 +#define TEGRA241_MAIN_GPIO_PORT_E 4 +#define TEGRA241_MAIN_GPIO_PORT_F 5 +#define TEGRA241_MAIN_GPIO_PORT_G 6 +#define TEGRA241_MAIN_GPIO_PORT_H 7 +#define TEGRA241_MAIN_GPIO_PORT_I 8 +#define TEGRA241_MAIN_GPIO_PORT_J 9 +#define TEGRA241_MAIN_GPIO_PORT_K 10 +#define TEGRA241_MAIN_GPIO_PORT_L 11 + +#define TEGRA241_MAIN_GPIO(port, offset) \ + ((TEGRA241_MAIN_GPIO_PORT_##port * 8) + (offset)) + +/* GPIOs implemented by AON GPIO controller */ +#define TEGRA241_AON_GPIO_PORT_AA 0 +#define TEGRA241_AON_GPIO_PORT_BB 1 + +#define TEGRA241_AON_GPIO(port, offset) \ + ((TEGRA241_AON_GPIO_PORT_##port * 8) + (offset)) + +#endif
--
2.34.1