[PATCH] fix-i2c-s3c2410-resume-race.patch

[Andy Green]

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This is the cause of the timeouts and broken behaviour on resume for the
I2C busses, and is doubtless the same cause of the BZ#79 reports of

"cannot get bus (error -110)"

The patch rejects pre I2C resume accessess, leading to immediate resume and

[   17.310000] timer tcon=00500000, tcnt a2c1, tcfg 00000200,00000000,
usec 00001eb8
[   17.310000] s3c2440-i2c s3c2440-i2c: Hey I am still asleep, retry later
[   17.310000] s3c2440-i2c s3c2440-i2c: Retrying transmission (0)
[   17.310000] s3c2440-i2c s3c2440-i2c: Hey I am still asleep, retry later
[   17.310000] s3c2440-i2c s3c2440-i2c: Retrying transmission (1)
[   17.310000] pcf50633_work: Oh crap PMU IRQ register read failed -1
[   17.310000] pcf50633_work: INT1=0x00 INT2=0x00 INT3=0x00 INT4=0x00
INT5=0x00
...
[   17.310000] s3c2440-i2c s3c2440-i2c: resuming
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