* Robert Nelson <[email protected]> [150518 09:15]: > On Mon, May 18, 2015 at 10:21 AM, Tony Lindgren <[email protected]> wrote: > > All the rev information is in the board's eeprom: > > hexdump -e '8/1 "%c"' /sys/bus/i2c/devices/0-0050/eeprom -s 12 -n 4 > > Rev A5B > 0A5B > > Rev C > 000C > > Just another default qwerk to add to Pantelis' bone_capemgr. ;)
It seems we should not even instantiate some devices on BBB until the EEPROM is parsed.. So maybe something like this: 1. The problem devices are initially set with status = "disabled" in the dts 2. We set up drivers/*/bbb-eeprom.c that parses the board revision at module_init time, and then flips the selected devices to have status = "enabled" and populates the revision info based on the eeprom and SoC revision passed in pdata. Then those devices get their struct device created and probed, but at a much later time. So rather than trying to init all that early, let's just init them much later when we have the proper I2C driver running? Regards, Tony -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
