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ARM: tegra: Add DT binding for Tegra186 GPIO controllers

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Tegra186 contains two separate but mostly similar GPIO controllers.
Register layout differs significantly from previous Tegra generations,
and so a new binding is required to describe them in device tree. This
patch adds that binding.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Stephen Warren
2016-04-12 11:46:37 -06:00
committed by Thierry Reding
parent 1e48b695d7
commit ec6b925579
2 changed files with 217 additions and 0 deletions
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56
include/dt-bindings/gpio/tegra186-gpio.h Normal file
View File

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/*
* This header provides constants for binding nvidia,tegra186-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_TEGRA_GPIO_H
#define _DT_BINDINGS_GPIO_TEGRA_GPIO_H
#include <dt-bindings/gpio/gpio.h>
/* GPIOs implemented by main GPIO controller */
#define TEGRA_MAIN_GPIO_PORT_A 0
#define TEGRA_MAIN_GPIO_PORT_B 1
#define TEGRA_MAIN_GPIO_PORT_C 2
#define TEGRA_MAIN_GPIO_PORT_D 3
#define TEGRA_MAIN_GPIO_PORT_E 4
#define TEGRA_MAIN_GPIO_PORT_F 5
#define TEGRA_MAIN_GPIO_PORT_G 6
#define TEGRA_MAIN_GPIO_PORT_H 7
#define TEGRA_MAIN_GPIO_PORT_I 8
#define TEGRA_MAIN_GPIO_PORT_J 9
#define TEGRA_MAIN_GPIO_PORT_K 10
#define TEGRA_MAIN_GPIO_PORT_L 11
#define TEGRA_MAIN_GPIO_PORT_M 12
#define TEGRA_MAIN_GPIO_PORT_N 13
#define TEGRA_MAIN_GPIO_PORT_O 14
#define TEGRA_MAIN_GPIO_PORT_P 15
#define TEGRA_MAIN_GPIO_PORT_Q 16
#define TEGRA_MAIN_GPIO_PORT_R 17
#define TEGRA_MAIN_GPIO_PORT_T 18
#define TEGRA_MAIN_GPIO_PORT_X 19
#define TEGRA_MAIN_GPIO_PORT_Y 20
#define TEGRA_MAIN_GPIO_PORT_BB 21
#define TEGRA_MAIN_GPIO_PORT_CC 22
#define TEGRA_MAIN_GPIO(port, offset) \
((TEGRA_MAIN_GPIO_PORT_##port * 8) + offset)
/* GPIOs implemented by AON GPIO controller */
#define TEGRA_AON_GPIO_PORT_S 0
#define TEGRA_AON_GPIO_PORT_U 1
#define TEGRA_AON_GPIO_PORT_V 2
#define TEGRA_AON_GPIO_PORT_W 3
#define TEGRA_AON_GPIO_PORT_Z 4
#define TEGRA_AON_GPIO_PORT_AA 5
#define TEGRA_AON_GPIO_PORT_EE 6
#define TEGRA_AON_GPIO_PORT_FF 7
#define TEGRA_AON_GPIO(port, offset) \
((TEGRA_AON_GPIO_PORT_##port * 8) + offset)
#endif