change prefix for kernelpatchbase 2.6.26

SVN-Revision: 13619

1 files changed, 82 insertions, 0 deletions

diff --git a/target/linux/s3c24xx/patches-2.6.26/1118-fix-jack-interrupt-debounce-loss-window.patch.patch b/target/linux/s3c24xx/patches-2.6.26/1118-fix-jack-interrupt-debounce-loss-window.patch.patch
new file mode 100755
index 0000000000..58b07d74a6
--- /dev/null
+++ b/target/linux/s3c24xx/patches-2.6.26/1118-fix-jack-interrupt-debounce-loss-window.patch.patch
@@ -0,0 +1,82 @@
+From 0143ee8d373f04e443645072a24ff0c7c87036c6 Mon Sep 17 00:00:00 2001
+From: Andy Green <andy@openmoko.com>
+Date: Fri, 25 Jul 2008 23:06:05 +0100
+Subject: [PATCH] fix-jack-interrupt-debounce-loss-window.patch
+
+Make sure we can't lose a jack interrupt in debounce, despite it is
+a one-in-a-million thing that just needs replug to clear
+
+Signed-off-by: Andy Green <andy@openmoko.com>
+---
+ drivers/input/keyboard/neo1973kbd.c |   50 +++++++++++++++++++++++-----------
+ 1 files changed, 34 insertions(+), 16 deletions(-)
+
+diff --git a/drivers/input/keyboard/neo1973kbd.c b/drivers/input/keyboard/neo1973kbd.c
+index a1fc7a3..8b9a420 100644
+--- a/drivers/input/keyboard/neo1973kbd.c
++++ b/drivers/input/keyboard/neo1973kbd.c
+@@ -62,27 +62,45 @@ static irqreturn_t neo1973kbd_hold_irq(int irq, void *dev_id)
+ static void neo1973kbd_debounce_jack(struct work_struct *work)
+ {
+ 	struct neo1973kbd *kbd = container_of(work, struct neo1973kbd, work);
+-
+-	/* we wait out any multiple interrupt stuttering in 100ms lumps */
++	unsigned long flags;
++	int loop = 0;
+ 
+ 	do {
+-		kbd->hp_irq_count_in_work = kbd->hp_irq_count;
+-		msleep(100);
+-	} while (kbd->hp_irq_count != kbd->hp_irq_count_in_work);
+-
+-	/* no new interrupts on jack for 100ms... ok we will report it */
+-
+-	input_report_switch(kbd->input,
+-			    SW_HEADPHONE_INSERT,
+-			    gpio_get_value(irq_to_gpio(kbd->jack_irq)));
+-	input_sync(kbd->input);
+-
+-	/* next time we get an interrupt on jack we need new work action */
+-	kbd->work_in_progress = 0;
++		/*
++		 * we wait out any multiple interrupt
++		 * stuttering in 100ms lumps
++		 */
++		do {
++			kbd->hp_irq_count_in_work = kbd->hp_irq_count;
++			msleep(100);
++		} while (kbd->hp_irq_count != kbd->hp_irq_count_in_work);
++		/*
++		 * no new interrupts on jack for 100ms...
++		 * ok we will report it
++		 */
++		input_report_switch(kbd->input, SW_HEADPHONE_INSERT,
++				    gpio_get_value(irq_to_gpio(kbd->jack_irq)));
++		input_sync(kbd->input);
++		/*
++		 * we go around the outer loop again if we detect that more
++		 * interrupts came while we are servicing here.  But we have
++		 * to sequence it carefully with interrupts off
++		 */
++		local_save_flags(flags);
++		/* no interrupts during this work means we can exit the work */
++		loop = !!(kbd->hp_irq_count != kbd->hp_irq_count_in_work);
++		if (!loop)
++			kbd->work_in_progress = 0;
++		local_irq_restore(flags);
++		/*
++		 * interrupt that comes here will either queue a new work action
++		 * since work_in_progress is cleared now, or be dealt with
++		 * when we loop.
++		 */
++	} while (loop);
+ }
+ 
+ 
+-
+ static irqreturn_t neo1973kbd_headphone_irq(int irq, void *dev_id)
+ {
+ 	struct neo1973kbd *neo1973kbd_data = dev_id;
+-- 
+1.5.6.3
+