From 97a67b7f86ba9cc7759d3e4ee6e39050b96af6b1 Mon Sep 17 00:00:00 2001
From: nbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73>
Date: Tue, 17 Jul 2012 11:35:35 -0400
Subject: [PATCH 114/123] 511-MIPS-ath79-add-ath79_set_usb_power_gpio

Import of the above patch from openwrt trunk, as of this commit:

 ----------
commit c1d79f64eed0a7ac36b5b9bca52275b397bec424
Author: nbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73>
Date:   Mon Jul 16 16:26:51 2012 +0000

    uboot-ar71xx: fix compile on recent mac os x versions

    git-svn-id: svn://svn.openwrt.org/openwrt/trunk@32750 3c298f89-4303-0410-b956-a3cf2f4a3e73
 ----------

Path to patch in the repo is: target/linux/ar71xx/patches-3.3
Repo is: git://nbd.name/openwrt.git

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
---
 arch/mips/ath79/dev-usb.c |   22 ++++++++++++++++++++++
 arch/mips/ath79/dev-usb.h |    2 ++
 2 files changed, 24 insertions(+)

diff --git a/arch/mips/ath79/dev-usb.c b/arch/mips/ath79/dev-usb.c
index 87fe48e..a32712d 100644
--- 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>
@@ -208,3 +209,24 @@ 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;
+}
diff --git a/arch/mips/ath79/dev-usb.h b/arch/mips/ath79/dev-usb.h
index 4b86a69..2cc309c 100644
--- 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 */
-- 
1.7.9.7