commit 1700f5fde88f9a251037bc86bde538ee32c59905
author Marek Vasut <marek.vasut@gmail.com> Thu Aug 20 22:05:53 2009 -0700
committer Dmitry Torokhov <dmitry.torokhov@gmail.com> Fri Aug 21 00:53:12 2009 -0700
tree aceddbec1e1c3916fe4a5fd20ab3f2a2de3e362a
parent 3b7307c2d66dd575ef24b88898b4bc4bddb254f4

Input: ucb1400_ts - enable ADC Filter

This patch enables ADC filtering on UCB1400 codec by default. The
benefit from this change is mostly on some Colibri boards where
the ADCSYNC pin of the UCB1400 codec isn't connected causing the
touchscreen to jitter very badly. This change has no visible
effect on boards where the ADCSYNC pin is connected.

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Tested-by: Palo Revak <palo@bielyvlk.sk>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

include/linux/ucb1400.h

diff --git a/include/linux/ucb1400.h b/include/linux/ucb1400.h
index ed889f4..ae779bb 100644
--- a/include/linux/ucb1400.h
+++ b/include/linux/ucb1400.h
@@ -73,6 +73,10 @@
 
 #define UCB_ADC_DATA		0x68
 #define UCB_ADC_DAT_VALID	(1 << 15)
+
+#define UCB_FCSR		0x6c
+#define UCB_FCSR_AVE		(1 << 12)
+
 #define UCB_ADC_DAT_MASK	0x3ff
 
 #define UCB_ID			0x7e