hwmon: do not init sensors on startup

The U-Boot Design Principles[1] clearly say:

  Initialize devices only when they are needed within U-Boot, i.e. don't
  initialize the Ethernet interface(s) unless U-Boot performs a download
  over Ethernet; don't initialize any IDE or USB devices unless U-Boot
  actually tries to load files from these, etc. (and don't forget to
  shut down these devices after using them - otherwise nasty things may
  happen when you try to boot your OS).

So, do not initialize and read the sensors on startup.

Signed-off-by: Heiko Schocher <hs@denx.de>
cc: Wolfgang Denk <wd@denx.de>
cc: Holger Brunck <holger.brunck@keymile.com>

1 files changed, 1 insertions, 18 deletions

diff --git a/drivers/hwmon/lm63.c b/drivers/hwmon/lm63.c
index 2f1f3cf..f3adf64 100644
--- a/drivers/hwmon/lm63.c
+++ b/drivers/hwmon/lm63.c
@@ -101,7 +101,7 @@ static int is_lm64(int sensor)
 	return sensor && (sensor != DTT_I2C_LM63_ADDR);
 }
 
-static int _dtt_init(int sensor)
+int dtt_init_one(int sensor)
 {
 	int i;
 	int val;
@@ -175,20 +175,3 @@ int dtt_get_temp(int sensor)
 	/* Ignore LSB for now, U-Boot only prints natural numbers */
 	return temp >> 8;
 }
-
-int dtt_init(void)
-{
-	int i;
-	unsigned char sensors[] = CONFIG_DTT_SENSORS;
-	const char *const header = "DTT:   ";
-
-	for (i = 0; i < sizeof(sensors); i++) {
-		if (_dtt_init(sensors[i]) != 0)
-			printf("%s%d FAILED INIT\n", header, i + 1);
-		else
-			printf("%s%d is %i C\n", header, i + 1,
-			       dtt_get_temp(sensors[i]));
-	}
-
-	return 0;
-}