xref: /OK3568_Linux_fs/kernel/arch/mips/bcm47xx/workarounds.c (revision 4882a59341e53eb6f0b4789bf948001014eff981) 
1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0
2*4882a593Smuzhiyun #include "bcm47xx_private.h"
3*4882a593Smuzhiyun 
4*4882a593Smuzhiyun #include <linux/gpio.h>
5*4882a593Smuzhiyun #include <bcm47xx_board.h>
6*4882a593Smuzhiyun #include <bcm47xx.h>
7*4882a593Smuzhiyun 
bcm47xx_workarounds_enable_usb_power(int usb_power)8*4882a593Smuzhiyun static void __init bcm47xx_workarounds_enable_usb_power(int usb_power)
9*4882a593Smuzhiyun {
10*4882a593Smuzhiyun 	int err;
11*4882a593Smuzhiyun 
12*4882a593Smuzhiyun 	err = gpio_request_one(usb_power, GPIOF_OUT_INIT_HIGH, "usb_power");
13*4882a593Smuzhiyun 	if (err)
14*4882a593Smuzhiyun 		pr_err("Failed to request USB power gpio: %d\n", err);
15*4882a593Smuzhiyun 	else
16*4882a593Smuzhiyun 		gpio_free(usb_power);
17*4882a593Smuzhiyun }
18*4882a593Smuzhiyun 
bcm47xx_workarounds(void)19*4882a593Smuzhiyun void __init bcm47xx_workarounds(void)
20*4882a593Smuzhiyun {
21*4882a593Smuzhiyun 	enum bcm47xx_board board = bcm47xx_board_get();
22*4882a593Smuzhiyun 
23*4882a593Smuzhiyun 	switch (board) {
24*4882a593Smuzhiyun 	case BCM47XX_BOARD_NETGEAR_WNR3500L:
25*4882a593Smuzhiyun 		bcm47xx_workarounds_enable_usb_power(12);
26*4882a593Smuzhiyun 		break;
27*4882a593Smuzhiyun 	case BCM47XX_BOARD_NETGEAR_WNDR3400V2:
28*4882a593Smuzhiyun 	case BCM47XX_BOARD_NETGEAR_WNDR3400_V3:
29*4882a593Smuzhiyun 		bcm47xx_workarounds_enable_usb_power(21);
30*4882a593Smuzhiyun 		break;
31*4882a593Smuzhiyun 	default:
32*4882a593Smuzhiyun 		/* No workaround(s) needed */
33*4882a593Smuzhiyun 		break;
34*4882a593Smuzhiyun 	}
35*4882a593Smuzhiyun }
36