From: Michael Gernoth <michael@gernoth.net>
Date: Thu, 19 May 2011 13:14:05 +0000 (+0200)
Subject: Set GPIOKPF_DEBOUNCE, just in case
X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/ms2-fixes/commitdiff_plain/20bf1c9e511d6839d28a6b3a24dfe66a3d700484?hp=a3cf88acf076d2d87fe6356697920ebde2046af4

Set GPIOKPF_DEBOUNCE, just in case

This flag is already set by Motorola, as it is included in
GPIOKPF_REMOVE_PHANTOM_KEYS. I assume that nobody at Motorola
looked at this flag, as they would have seen that it also enable
the debouncing code which needs to have a debounce_delay set.
When the delay is 0 and the code is active, the bouncing even gets
worse, as the keypad is scanned more rapidly
---

diff --git a/debounce.c b/debounce.c
index ec20fdb..7489f8c 100644
--- a/debounce.c
+++ b/debounce.c
@@ -37,10 +37,15 @@ static int __init debounce_init(void)
 	printk(KERN_INFO "settle_time: %u\n", gpio_evmi->settle_time.tv.nsec);
 	printk(KERN_INFO "poll_time: %u\n", gpio_evmi->poll_time.tv.nsec);
 	printk(KERN_INFO "debounce_delay: %u\n", gpio_evmi->debounce_delay.tv.nsec);
+	printk(KERN_INFO "flags: %x\n", gpio_evmi->flags);
 	if (!gpio_evmi->debounce_delay.tv.nsec) {
 		printk(KERN_INFO "Activating debounce!\n");
 		gpio_evmi->debounce_delay.tv.nsec = 5 * NSEC_PER_MSEC;
+
+		/* GPIOKPF_DEBOUNCE should already be set by GPIOKPF_REMOVE_PHANTOM_KEYS */
+		gpio_evmi->flags |= GPIOKPF_DEBOUNCE;
 		printk(KERN_INFO "debounce_delay: %u\n", gpio_evmi->debounce_delay.tv.nsec);
+		printk(KERN_INFO "flags: %x\n", gpio_evmi->flags);
 	}
 
 	return 0;