1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
|
--- 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>
@@ -282,3 +283,26 @@ 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 */
|
