On Thu, Mar 05, 2009 at 03:54:24PM +0200, Ari Kauppi wrote: > I have observed some Spurious IRQ's for I2C1 when all kernel hacking options > (and thus LOCKDEP) are disabled. > > Applying Richard Woodruff's 'I2C bug fixes for L-O and L-Z' seems to help > but IRQF_DISABLED is needed for proper behaviour. > > Signed-off-by: Ari Kauppi <[email protected]>
This driver should be in sync with mainline, the only missing commit is commit 3487568e15df6e133f5f55779dec614dbeb68a99 Author: Eero Nurkkala <[email protected]> Date: Tue Nov 25 13:03:46 2008 +0200 i2c: i2c-omap: Fix BUFSTAT_REG reading The number of bytes to be received is read from wrong place with all OMAPs with highspeed I2C support, which involves a FIFO and BUFSTAT_REG. It is the 6 bits starting from the bit 8 in the BUFSTAT_REG that indicate this amount of bytes to be read. Moreover, only the 6 LSB:s are relevant for the TXSTAT field. Signed-off-by: Eero Nurkkala <[email protected]> Signed-off-by: Tony Lindgren <[email protected]> That and this one should be going via linux-i2c mainling list. Could you send Eero's patch and yours to Jean Delvare (i2c maintainer) ? Please keep linux-omap in the loop. That said, this makes sense and avoids that we get interrupts while handling a previous interrupt. Acked-by: Felipe Balbi <[email protected]> -- balbi -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
