From a443d31410c571ee8f970da819a44d698fdd6b1f Mon Sep 17 00:00:00 2001
From: Heiko Schocher <hs@pollux.denx.de>
Date: Sun, 14 Jan 2007 13:35:31 +0100
Subject: [PATCH] [FIX] correct I2C Writes for the LM81 Sensor.
Signed-off-by: Heiko Schocher <hs@denx.de>
---
dtt/lm81.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/dtt/lm81.c b/dtt/lm81.c
index 2c225f12d7..c83a3cdf63 100644
--- a/dtt/lm81.c
+++ b/dtt/lm81.c
@@ -80,7 +80,7 @@ int dtt_write(int sensor, int reg, int val)
/*
* Write value to register.
*/
- if (i2c_write(sensor, reg, 1, data, 1) != 0)
+ if (i2c_write(sensor, reg, 1, &data, 1) != 0)
return 1;
return 0;
@@ -88,6 +88,7 @@ int dtt_write(int sensor, int reg, int val)
#define DTT_MANU 0x3e
#define DTT_REV 0x3f
+#define DTT_CONFIG 0x40
#define DTT_ADR 0x48
static int _dtt_init(int sensor)
@@ -98,6 +99,8 @@ static int _dtt_init(int sensor)
if (dtt_write (sensor, DTT_CONFIG, 0x01) < 0)
return 1;
+ /* The LM81 needs 400ms to get the correct values ... */
+ udelay (400000);
man = dtt_read (sensor, DTT_MANU);
if (man != 0x01)
return 1;
@@ -109,8 +112,6 @@ static int _dtt_init(int sensor)
return 1;
printf ("DTT: Found LM81@%x Rev: %d\n", adr, rev);
- /* The LM81 needs 400ms to get the correct values ... */
- udelay (400000);
return 0;
} /* _dtt_init() */
--
2.39.5