33 lines
1.3 KiB
Diff
33 lines
1.3 KiB
Diff
|
From 88d3c5010a207c651d1940856d0d26935434e3c2 Mon Sep 17 00:00:00 2001
|
||
|
|
From: Holger Freyther <ich@tamarin.(none)>
|
||
|
|
Date: Tue, 13 May 2008 18:53:40 +0100
|
||
|
|
Subject: [PATCH] Explain why we want SECOND to kick.
|
||
|
|
We do not mask the SECOND interrupt to make sure that we get
|
||
|
|
a interrupt at the beginning. We use this for the coldplug_done
|
||
|
|
initisalisation.
|
||
|
|
So pcf->flags and INT1M is out of sync at the beginning but after the
|
||
|
|
first SECOND interrupt it will be put into sync.
|
||
|
|
|
||
|
|
Signed-Off-By: Holger Freyther <zecke@openmoko.org>
|
||
|
|
---
|
||
|
|
drivers/i2c/chips/pcf50633.c | 3 ++-
|
||
|
|
1 files changed, 2 insertions(+), 1 deletions(-)
|
||
|
|
|
||
|
|
diff --git a/drivers/i2c/chips/pcf50633.c b/drivers/i2c/chips/pcf50633.c
|
||
|
|
index 205f4e3..1c10c42 100644
|
||
|
|
--- a/drivers/i2c/chips/pcf50633.c
|
||
|
|
+++ b/drivers/i2c/chips/pcf50633.c
|
||
|
|
@@ -1755,7 +1755,8 @@ static int pcf50633_detect(struct i2c_adapter *adapter, int address, int kind)
|
||
|
|
goto exit_sysfs;
|
||
|
|
|
||
|
|
/* configure interrupt mask */
|
||
|
|
- reg_write(data, PCF50633_REG_INT1M, 0x00); /* we want SECOND to kick */
|
||
|
|
+ /* we want SECOND to kick for the coldplug initialisation */
|
||
|
|
+ reg_write(data, PCF50633_REG_INT1M, 0x00);
|
||
|
|
reg_write(data, PCF50633_REG_INT2M, 0x00);
|
||
|
|
reg_write(data, PCF50633_REG_INT3M, 0x00);
|
||
|
|
reg_write(data, PCF50633_REG_INT4M, 0x00);
|
||
|
|
--
|
||
|
|
1.5.6.5
|
||
|
|
|