gpio.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <gpio.h>
#include <soc/addressmap.h>
#include <soc/gpio.h>
#include <soc/grf.h>
#include <soc/pmu.h>
#include <soc/soc.h>
 
struct rockchip_gpio_regs *gpio_port[] = {
        (struct rockchip_gpio_regs *)GPIO0_BASE,
        (struct rockchip_gpio_regs *)GPIO1_BASE,
        (struct rockchip_gpio_regs *)GPIO2_BASE,
        (struct rockchip_gpio_regs *)GPIO3_BASE,
        (struct rockchip_gpio_regs *)GPIO4_BASE,
        (struct rockchip_gpio_regs *)GPIO5_BASE,
        (struct rockchip_gpio_regs *)GPIO6_BASE,
        (struct rockchip_gpio_regs *)GPIO7_BASE,
        (struct rockchip_gpio_regs *)GPIO8_BASE
};
 
#define PMU_GPIO_PORT 0
 
int is_pmu_gpio(gpio_t gpio)
{
        if (gpio.port == PMU_GPIO_PORT)
                return 1;
        return 0;
}
 
void *gpio_grf_reg(gpio_t gpio)
{
        if (is_pmu_gpio(gpio))
                return &rk3288_pmu->gpio0pull[gpio.bank];
        /* There is one pmu gpio, gpio0, so " - 1" */
        return &rk3288_grf->gpio1_p[(gpio.port - 1)][gpio.bank];
}
 
u32 gpio_get_pull_val(gpio_t gpio, enum gpio_pull pull)
{
        /* use the default gpio pull bias setting defined in soc/gpio.h */
        return pull;
}