diff options
| -rw-r--r-- | arch/arm/include/asm/arch-tegra/gpio.h | 20 | ||||
| -rw-r--r-- | drivers/gpio/tegra_gpio.c | 20 |
2 files changed, 40 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-tegra/gpio.h b/arch/arm/include/asm/arch-tegra/gpio.h index d97190d..44cd455 100644 --- a/arch/arm/include/asm/arch-tegra/gpio.h +++ b/arch/arm/include/asm/arch-tegra/gpio.h @@ -14,11 +14,31 @@ #define GPIO_FULLPORT(x) ((x) >> 3) #define GPIO_BIT(x) ((x) & 0x7) +enum tegra_gpio_init { + TEGRA_GPIO_INIT_IN, + TEGRA_GPIO_INIT_OUT0, + TEGRA_GPIO_INIT_OUT1, +}; + +struct tegra_gpio_config { + u32 gpio:16; + u32 init:2; +}; + /* * Tegra-specific GPIO API */ +/** + * Configure a list of GPIOs + * + * @param config List of GPIO configurations + * @param len Number of config items in list + */ +void gpio_config_table(const struct tegra_gpio_config *config, int len); + void gpio_info(void); #define gpio_status() gpio_info() + #endif /* TEGRA_GPIO_H_ */ diff --git a/drivers/gpio/tegra_gpio.c b/drivers/gpio/tegra_gpio.c index 82b30d5..fea9d17 100644 --- a/drivers/gpio/tegra_gpio.c +++ b/drivers/gpio/tegra_gpio.c @@ -221,6 +221,26 @@ int gpio_set_value(unsigned gpio, int value) return 0; } +void gpio_config_table(const struct tegra_gpio_config *config, int len) +{ + int i; + + for (i = 0; i < len; i++) { + switch (config[i].init) { + case TEGRA_GPIO_INIT_IN: + gpio_direction_input(config[i].gpio); + break; + case TEGRA_GPIO_INIT_OUT0: + gpio_direction_output(config[i].gpio, 0); + break; + case TEGRA_GPIO_INIT_OUT1: + gpio_direction_output(config[i].gpio, 1); + break; + } + set_config(config[i].gpio, 1); + } +} + /* * Display Tegra GPIO information */ |