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cdb8faa00e
Eric has reported on OpenWrt's bug tracking system[1], that he's not able to use USB devices on his WNDR3400v2 device after the boot, until he turns on GPIO #21 manually through sysfs. 1. https://bugs.openwrt.org/index.php?do=details&task_id=2170 Cc: Rafał Miłecki <zajec5@gmail.com> Cc: Hauke Mehrtens <hauke@hauke-m.de> Reported-by: Eric Bohlman <ericbohlman@gmail.com> Tested-by: Eric Bohlman <ericbohlman@gmail.com> Signed-off-by: Petr Štetiar <ynezz@true.cz> Signed-off-by: Paul Burton <paul.burton@mips.com>
36 lines
782 B
C
36 lines
782 B
C
// SPDX-License-Identifier: GPL-2.0
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#include "bcm47xx_private.h"
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#include <linux/gpio.h>
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#include <bcm47xx_board.h>
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#include <bcm47xx.h>
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static void __init bcm47xx_workarounds_enable_usb_power(int usb_power)
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{
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int err;
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err = gpio_request_one(usb_power, GPIOF_OUT_INIT_HIGH, "usb_power");
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if (err)
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pr_err("Failed to request USB power gpio: %d\n", err);
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else
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gpio_free(usb_power);
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}
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void __init bcm47xx_workarounds(void)
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{
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enum bcm47xx_board board = bcm47xx_board_get();
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switch (board) {
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case BCM47XX_BOARD_NETGEAR_WNR3500L:
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bcm47xx_workarounds_enable_usb_power(12);
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break;
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case BCM47XX_BOARD_NETGEAR_WNDR3400V2:
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case BCM47XX_BOARD_NETGEAR_WNDR3400_V3:
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bcm47xx_workarounds_enable_usb_power(21);
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break;
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default:
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/* No workaround(s) needed */
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break;
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}
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}
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