openwrtv4/target/linux/ar71xx/patches-3.3/511-MIPS-ath79-add-ath79_set_usb_power_gpio.patch
2012-06-19 10:13:41 +00:00

47 lines
1 KiB
Diff

--- a/arch/mips/ath79/dev-usb.c
+++ b/arch/mips/ath79/dev-usb.c
@@ -15,6 +15,7 @@
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/irq.h>
+#include <linux/gpio.h>
#include <linux/dma-mapping.h>
#include <linux/platform_device.h>
#include <linux/usb/ehci_pdriver.h>
@@ -236,3 +237,26 @@ void __init ath79_register_usb(void)
else
BUG();
}
+
+void __init ath79_set_usb_power_gpio(unsigned int gpio, unsigned long flags,
+ const char *label)
+{
+ int err;
+
+ err = gpio_request_one(gpio, flags, label);
+ if (err) {
+ pr_err("ath79: can't setup GPIO%u (%s), err=%d\n",
+ gpio, label, err);
+ return;
+ }
+
+ err = gpio_export(gpio, false);
+ if (err) {
+ pr_err("ath79: can't export GPIO%u (%s), err=%d\n",
+ gpio, label, err);
+ }
+
+ return;
+}
+
+
--- a/arch/mips/ath79/dev-usb.h
+++ b/arch/mips/ath79/dev-usb.h
@@ -13,5 +13,7 @@
#define _ATH79_DEV_USB_H
void ath79_register_usb(void);
+void ath79_set_usb_power_gpio(unsigned int gpio, unsigned long flags,
+ const char *label);
#endif /* _ATH79_DEV_USB_H */