+// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2011
* eInfochips Ltd. <www.einfochips.com>
- * Written-by: Ajay Bhargav <ajay.bhargav@einfochips.com>
+ * Written-by: Ajay Bhargav <contact@8051projects.net>
*
* (C) Copyright 2010
* Marvell Semiconductor <www.marvell.com>
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- * MA 02110-1301 USA
*/
#include <common.h>
#include <asm/io.h>
-#include <asm/errno.h>
+#include <linux/errno.h>
#include "mvgpio.h"
#include <asm/gpio.h>
#define MV_MAX_GPIO 128
#endif
-int gpio_request(int gp, const char *label)
+int gpio_request(unsigned gpio, const char *label)
{
- if (gp >= MV_MAX_GPIO) {
- printf("%s: Invalid GPIO requested %d\n", __func__, gp);
- return -EINVAL;
+ if (gpio >= MV_MAX_GPIO) {
+ printf("%s: Invalid GPIO requested %d\n", __func__, gpio);
+ return -1;
}
return 0;
}
-void gpio_free(int gp)
-{
-}
-
-void gpio_toggle_value(int gp)
+int gpio_free(unsigned gpio)
{
- gpio_set_value(gp, !gpio_get_value(gp));
+ return 0;
}
-int gpio_direction_input(int gp)
+int gpio_direction_input(unsigned gpio)
{
struct gpio_reg *gpio_reg_bank;
- if (gp >= MV_MAX_GPIO) {
- printf("%s: Invalid GPIO %d\n", __func__, gp);
- return -EINVAL;
+ if (gpio >= MV_MAX_GPIO) {
+ printf("%s: Invalid GPIO %d\n", __func__, gpio);
+ return -1;
}
- gpio_reg_bank = get_gpio_base(GPIO_TO_REG(gp));
- writel(GPIO_TO_BIT(gp), &gpio_reg_bank->gcdr);
+ gpio_reg_bank = get_gpio_base(GPIO_TO_REG(gpio));
+ writel(GPIO_TO_BIT(gpio), &gpio_reg_bank->gcdr);
return 0;
}
-int gpio_direction_output(int gp, int value)
+int gpio_direction_output(unsigned gpio, int value)
{
struct gpio_reg *gpio_reg_bank;
- if (gp >= MV_MAX_GPIO) {
- printf("%s: Invalid GPIO %d\n", __func__, gp);
- return -EINVAL;
+ if (gpio >= MV_MAX_GPIO) {
+ printf("%s: Invalid GPIO %d\n", __func__, gpio);
+ return -1;
}
- gpio_reg_bank = get_gpio_base(GPIO_TO_REG(gp));
- writel(GPIO_TO_BIT(gp), &gpio_reg_bank->gsdr);
- gpio_set_value(gp, value);
+ gpio_reg_bank = get_gpio_base(GPIO_TO_REG(gpio));
+ writel(GPIO_TO_BIT(gpio), &gpio_reg_bank->gsdr);
+ gpio_set_value(gpio, value);
return 0;
}
-int gpio_get_value(int gp)
+int gpio_get_value(unsigned gpio)
{
struct gpio_reg *gpio_reg_bank;
- u32 gp_val;
+ u32 gpio_val;
- if (gp >= MV_MAX_GPIO) {
- printf("%s: Invalid GPIO %d\n", __func__, gp);
- return -EINVAL;
+ if (gpio >= MV_MAX_GPIO) {
+ printf("%s: Invalid GPIO %d\n", __func__, gpio);
+ return -1;
}
- gpio_reg_bank = get_gpio_base(GPIO_TO_REG(gp));
- gp_val = readl(&gpio_reg_bank->gplr);
+ gpio_reg_bank = get_gpio_base(GPIO_TO_REG(gpio));
+ gpio_val = readl(&gpio_reg_bank->gplr);
- return GPIO_VAL(gp, gp_val);
+ return GPIO_VAL(gpio, gpio_val);
}
-void gpio_set_value(int gp, int value)
+int gpio_set_value(unsigned gpio, int value)
{
struct gpio_reg *gpio_reg_bank;
- if (gp >= MV_MAX_GPIO) {
- printf("%s: Invalid GPIO %d\n", __func__, gp);
- return;
+ if (gpio >= MV_MAX_GPIO) {
+ printf("%s: Invalid GPIO %d\n", __func__, gpio);
+ return -1;
}
- gpio_reg_bank = get_gpio_base(GPIO_TO_REG(gp));
+ gpio_reg_bank = get_gpio_base(GPIO_TO_REG(gpio));
if (value)
- writel(GPIO_TO_BIT(gp), &gpio_reg_bank->gpsr);
+ writel(GPIO_TO_BIT(gpio), &gpio_reg_bank->gpsr);
else
- writel(GPIO_TO_BIT(gp), &gpio_reg_bank->gpcr);
+ writel(GPIO_TO_BIT(gpio), &gpio_reg_bank->gpcr);
+
+ return 0;
}