Mirrors/u-boot
2
0
Fork 0
mirror of https://github.com/AsahiLinux/u-boot synced 2024-11-25 06:00:43 +00:00
Code Issues Projects Releases Packages Wiki Activity

mxc_i2c: change slave addr if conflicts with destination.

Browse source 
The i2c controller cannot be both master and slave in the
same transaction.

Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>
This commit is contained in:
Troy Kisky 2012-07-19 08:18:14 +00:00 committed by Heiko Schocher
parent 90a5b70f59
commit ca741da106
1 changed files with 2 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
drivers/i2c/mxc_i2c.c
View file

@ -223,6 +223,8 @@ static int i2c_init_transfer(struct mxc_i2c_regs *i2c_regs,
/* Wait for controller to be stable */
udelay(50);
}
if (readb(&i2c_regs->iadr) == (chip << 1))
writeb((chip << 1) ^ 2, &i2c_regs->iadr);
writeb(0, &i2c_regs->i2sr);
ret = wait_for_sr_state(i2c_regs, ST_BUS_IDLE);
if (ret < 0)