1 // SPDX-License-Identifier: GPL-2.0 2 #include "bcm47xx_private.h" 3 4 #include <linux/gpio.h> 5 #include <bcm47xx_board.h> 6 #include <bcm47xx.h> 7 8 static void __init bcm47xx_workarounds_enable_usb_power(int usb_power) 9 { 10 int err; 11 12 err = gpio_request_one(usb_power, GPIOF_OUT_INIT_HIGH, "usb_power"); 13 if (err) 14 pr_err("Failed to request USB power gpio: %d\n", err); 15 else 16 gpio_free(usb_power); 17 } 18 19 void __init bcm47xx_workarounds(void) 20 { 21 enum bcm47xx_board board = bcm47xx_board_get(); 22 23 switch (board) { 24 case BCM47XX_BOARD_NETGEAR_WNR3500L: 25 case BCM47XX_BOARD_NETGEAR_WNR3500L_V2: 26 bcm47xx_workarounds_enable_usb_power(12); 27 break; 28 case BCM47XX_BOARD_NETGEAR_WNDR3400V2: 29 case BCM47XX_BOARD_NETGEAR_WNDR3400_V3: 30 bcm47xx_workarounds_enable_usb_power(21); 31 break; 32 default: 33 /* No workaround(s) needed */ 34 break; 35 } 36 } 37