tree 5abf8e22939c5c1c030643ffe2fcdfe7bb16344c
parent 93198b6cad8af03996373584284a1673ad6000cb
author Corey Minyard <cminyard@mvista.com> 1542217850 -0600
committer Corey Minyard <cminyard@mvista.com> 1551323168 -0600

i2c: have I2C receive operation return uint8_t

It is never supposed to fail and cannot return an error, so just
have it return the proper type.  Have it return 0xff on nothing
available, since that's what would happen on a real bus.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>