add support for target 3c24xx (more known as Openmoko GTA02 "Freerunner") and merge it with the openmoko-target and the work Michael Buesch <mb> did

SVN-Revision: 13609

1 files changed, 73 insertions, 0 deletions

diff --git a/target/linux/s3c24xx/patches/0206-From-3a32be40f78404d5f1185f0b3d6b5632381cb33f-Mon-Se.patch b/target/linux/s3c24xx/patches/0206-From-3a32be40f78404d5f1185f0b3d6b5632381cb33f-Mon-Se.patch
new file mode 100755
index 0000000000..dfb6078b54
--- /dev/null
+++ b/target/linux/s3c24xx/patches/0206-From-3a32be40f78404d5f1185f0b3d6b5632381cb33f-Mon-Se.patch
@@ -0,0 +1,73 @@
+From 8279b4e4862b148b10e7d4d2967ac92eaae0f129 Mon Sep 17 00:00:00 2001
+From: Holger Freyther <zecke@openmoko.org>
+Date: Fri, 25 Jul 2008 23:06:18 +0100
+Subject: [PATCH] From 3a32be40f78404d5f1185f0b3d6b5632381cb33f Mon Sep 17 00:00:00 2001
+ Subject: [PATCH] [neo1973 leds] Move from mutex to spinlock because we may not use mutexes
+     The led triggers may call set_brightness from atomic contexts. As
+     mutex_lock calls might_sleep and sleeping is not allowed in atomic contexts
+     we have to switch to spinlocks here.
+
+Signed-Off-By: Holger Freyther <zecke@openmoko.org>
+---
+ drivers/leds/leds-neo1973-gta02.c |   10 +++++-----
+ 1 files changed, 5 insertions(+), 5 deletions(-)
+
+diff --git a/drivers/leds/leds-neo1973-gta02.c b/drivers/leds/leds-neo1973-gta02.c
+index 952ad69..8fe817b 100644
+--- a/drivers/leds/leds-neo1973-gta02.c
++++ b/drivers/leds/leds-neo1973-gta02.c
+@@ -27,7 +27,7 @@
+ 
+ struct gta02_led_priv
+ {
+-	struct mutex mutex;
++	spinlock_t lock;
+ 	struct led_classdev cdev;
+ 	struct s3c2410_pwm pwm;
+ 	unsigned int gpio;
+@@ -53,6 +53,7 @@ static inline struct gta02_led_bundle *to_bundle(struct led_classdev *led_cdev)
+ static void gta02led_set(struct led_classdev *led_cdev,
+ 		enum led_brightness value)
+ {
++	unsigned long flags;
+ 	struct gta02_led_priv *lp = to_priv(led_cdev);
+ 
+ 	/*
+@@ -60,7 +61,7 @@ static void gta02led_set(struct led_classdev *led_cdev,
+  	 * value == 128 -> 50% duty cycle (medium power)
+  	 * value == 0 -> 0% duty cycle (zero power)
+  	 */
+- 	mutex_lock(&lp->mutex);
++	spin_lock_irqsave(&lp->lock, flags);
+ 
+ 	if (lp->has_pwm) {
+ 		s3c2410_pwm_duty_cycle(value, &lp->pwm);
+@@ -68,7 +69,7 @@ static void gta02led_set(struct led_classdev *led_cdev,
+ 		neo1973_gpb_setpin(lp->gpio, value ? 1 : 0);
+ 	}
+ 
+-	mutex_unlock(&lp->mutex);
++	spin_unlock_irqrestore(&lp->lock, flags);
+ }
+ 
+ #ifdef CONFIG_PM
+@@ -170,7 +171,7 @@ static int __init gta02led_probe(struct platform_device *pdev)
+ 			break;
+ 		}
+ 
+-		mutex_init(&lp->mutex);
++		spin_lock_init(&lp->lock);
+ 		rc = led_classdev_register(&pdev->dev, &lp->cdev);
+ 	}
+ 
+@@ -192,7 +193,6 @@ static int gta02led_remove(struct platform_device *pdev)
+ 			gta02led_set(&lp->cdev, 0);
+ 
+ 		led_classdev_unregister(&lp->cdev);
+-		mutex_destroy(&lp->mutex);
+ 	}
+ 
+ 	platform_set_drvdata(pdev, NULL);
+-- 
+1.5.6.3
+