[U-Boot] [PATCH 03/12] 83xx, kmeter1: add I2C, dtt, eeprom support

[Heiko Schocher <hs@denx.de>]

Hello Kim,

Kim Phillips wrote:
> On Wed, 11 Feb 2009 19:25:49 +0100
> Heiko Schocher <hs@denx.de> wrote:
> 
>> diff --git a/drivers/hwmon/lm75.c b/drivers/hwmon/lm75.c
>> index 8119821..ecfc345 100644
>> --- a/drivers/hwmon/lm75.c
>> +++ b/drivers/hwmon/lm75.c
>> @@ -42,6 +42,8 @@
>>  #define DTT_TEMP_HYST		0x2
>>  #define DTT_TEMP_SET		0x3
>>
>> +DECLARE_GLOBAL_DATA_PTR;
>> +
>>  int dtt_read(int sensor, int reg)
>>  {
>>  	int dlen;
>> @@ -157,7 +159,17 @@ int dtt_init (void)
>>
>>  	/* switch to correct I2C bus */
>>  	old_bus = I2C_GET_BUS();
>> -	I2C_SET_BUS(CONFIG_SYS_DTT_BUS_NUM);
>> +	if ((gd->flags & GD_FLG_RELOC) != GD_FLG_RELOC) {
>> +		uchar *tmp = (uchar *)getenv("dtt_bus");
> 
> sorry Heiko, I should have asked you before: this is a hardcoded
> environment variable in driver code, does the dtt bus value change
> between boots?  If not, what's the reason the value isn't specified as
> a CONFIG_SYS_DTT_BUS_NUM?

It changes not between boots, but between different hardware.

>> +		if (tmp == NULL)
>> +			printf("FAILED: dtt_bus not defined\n");
>> +		else {
>> +			if (i2c_mux_ident_muxstring_f(tmp))
>> +				printf("FAILED: couldnt switch to bus\n");
>> +		}
> 
> btw, these braces unnecessary.

Yep, I change this.

thanks
Heiko
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