u-boot/arch/arm/mach-snapdragon/pinctrl-apq8096.c
Ramon Fried 94268f1ab2 arm: mach-snapdragon: add pinctrl driver for db820c
Add pinctrl driver for Dragonboard820c, currently with only
one mux func to initialize pins for serial console.

Signed-off-by: Ramon Fried <ramon.fried@gmail.com>
2019-01-25 12:12:55 -05:00

56 lines
1.2 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* Qualcomm APQ8096 pinctrl
*
* (C) Copyright 2019 Ramon Fried <ramon.fried@gmail.com>
*
*/
#include "pinctrl-snapdragon.h"
#include <common.h>
#define MAX_PIN_NAME_LEN 32
static char pin_name[MAX_PIN_NAME_LEN];
static const char * const msm_pinctrl_pins[] = {
"SDC1_CLK",
"SDC1_CMD",
"SDC1_DATA",
"SDC2_CLK",
"SDC2_CMD",
"SDC2_DATA",
"SDC1_RCLK",
};
static const struct pinctrl_function msm_pinctrl_functions[] = {
{"blsp_uart8", 2},
};
static const char *apq8096_get_function_name(struct udevice *dev,
unsigned int selector)
{
return msm_pinctrl_functions[selector].name;
}
static const char *apq8096_get_pin_name(struct udevice *dev,
unsigned int selector)
{
if (selector < 150) {
snprintf(pin_name, MAX_PIN_NAME_LEN, "GPIO_%u", selector);
return pin_name;
} else {
return msm_pinctrl_pins[selector - 150];
}
}
static unsigned int apq8096_get_function_mux(unsigned int selector)
{
return msm_pinctrl_functions[selector].val;
}
struct msm_pinctrl_data apq8096_data = {
.pin_count = 157,
.functions_count = ARRAY_SIZE(msm_pinctrl_functions),
.get_function_name = apq8096_get_function_name,
.get_function_mux = apq8096_get_function_mux,
.get_pin_name = apq8096_get_pin_name,
};