1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Copyright (C) 2018 Allied Telesis Labs
4 */
5
6 #include <common.h>
7 #include <dm.h>
8 #include <asm/gpio.h>
9
10 DECLARE_GLOBAL_DATA_PTR;
11
gpio_hog_list(struct gpio_desc * gpiod,int max_count,const char * node_name,const char * gpio_name,int value)12 int gpio_hog_list(struct gpio_desc *gpiod, int max_count,
13 const char *node_name, const char *gpio_name, int value)
14 {
15 int node;
16 int count;
17 int i;
18
19 node = fdt_node_offset_by_compatible(gd->fdt_blob, 0, node_name);
20 if (node < 0)
21 return -ENODEV;
22
23 if (!dm_gpio_is_valid(gpiod)) {
24 count =
25 gpio_request_list_by_name_nodev(offset_to_ofnode(node),
26 gpio_name, gpiod, max_count,
27 GPIOD_IS_OUT);
28 if (count < 0)
29 return count;
30
31 for (i = 0; i < count; i++)
32 dm_gpio_set_value(&gpiod[i], value);
33 }
34
35 return 0;
36 }
37