| 1 | --- a/arch/mips/ath79/dev-usb.c |
| 2 | +++ b/arch/mips/ath79/dev-usb.c |
| 3 | @@ -15,6 +15,7 @@ |
| 4 | #include <linux/init.h> |
| 5 | #include <linux/delay.h> |
| 6 | #include <linux/irq.h> |
| 7 | +#include <linux/gpio.h> |
| 8 | #include <linux/dma-mapping.h> |
| 9 | #include <linux/platform_device.h> |
| 10 | #include <linux/usb/ehci_pdriver.h> |
| 11 | @@ -282,3 +283,26 @@ void __init ath79_register_usb(void) |
| 12 | else |
| 13 | BUG(); |
| 14 | } |
| 15 | + |
| 16 | +void __init ath79_set_usb_power_gpio(unsigned int gpio, unsigned long flags, |
| 17 | + const char *label) |
| 18 | +{ |
| 19 | + int err; |
| 20 | + |
| 21 | + err = gpio_request_one(gpio, flags, label); |
| 22 | + if (err) { |
| 23 | + pr_err("ath79: can't setup GPIO%u (%s), err=%d\n", |
| 24 | + gpio, label, err); |
| 25 | + return; |
| 26 | + } |
| 27 | + |
| 28 | + err = gpio_export(gpio, false); |
| 29 | + if (err) { |
| 30 | + pr_err("ath79: can't export GPIO%u (%s), err=%d\n", |
| 31 | + gpio, label, err); |
| 32 | + } |
| 33 | + |
| 34 | + return; |
| 35 | +} |
| 36 | + |
| 37 | + |
| 38 | --- a/arch/mips/ath79/dev-usb.h |
| 39 | +++ b/arch/mips/ath79/dev-usb.h |
| 40 | @@ -13,5 +13,7 @@ |
| 41 | #define _ATH79_DEV_USB_H |
| 42 | |
| 43 | void ath79_register_usb(void); |
| 44 | +void ath79_set_usb_power_gpio(unsigned int gpio, unsigned long flags, |
| 45 | + const char *label); |
| 46 | |
| 47 | #endif /* _ATH79_DEV_USB_H */ |
| 48 | |
