On Thursday 14 July 2011 12:50 AM, Ben Dooks wrote: > On Tue, Jul 05, 2011 at 05:01:01PM -0700, Kevin Hilman wrote: >> Shubhrajyoti D <shubhrajyoti@xxxxxx> writes: >> >>> Currently the fifo depth is set to zero for OMAP4 which disables >>> the FIFO usage. This patch enables the FIFO usage for I2C transactions >>> on OMAP4 also. >>> >>> Tested on omap4430 and 3430. >>> >>> Reported-By: Nishanth Menon <nm@xxxxxx> >>> Signed-off-by: Shubhrajyoti D <shubhrajyoti@xxxxxx> >>> --- >>> Rebased on top of the series by Andy Green >>> http://www.spinics.net/lists/linux-i2c/msg05632.html >> Thanks. >> >> This is v3.1 material, but would be nice to see a couple tested-by or >> acked-by tags from folks that are more actively using the I2C driver >> before merging >> >> Kevin > guess you'll be picking these up? Ben Could this patch be lined up as well? > >>> drivers/i2c/busses/i2c-omap.c | 11 ++++++----- >>> 1 files changed, 6 insertions(+), 5 deletions(-) >>> >>> diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c >>> index d53cd61..8f87a37 100644 >>> --- a/drivers/i2c/busses/i2c-omap.c >>> +++ b/drivers/i2c/busses/i2c-omap.c >>> @@ -1068,13 +1068,14 @@ omap_i2c_probe(struct platform_device *pdev) >>> * size. This is to ensure that we can handle the status on int >>> * call back latencies. >>> */ >>> - if (dev->rev >= OMAP_I2C_REV_ON_3530_4430) { >>> - dev->fifo_size = 0; >>> + >>> + dev->fifo_size = (dev->fifo_size / 2); >>> + >>> + if (dev->rev >= OMAP_I2C_REV_ON_3530_4430) >>> dev->b_hw = 0; /* Disable hardware fixes */ >>> - } else { >>> - dev->fifo_size = (dev->fifo_size / 2); >>> + else >>> dev->b_hw = 1; /* Enable hardware fixes */ >>> - } >>> + >>> /* calculate wakeup latency constraint for MPU */ >>> if (dev->set_mpu_wkup_lat != NULL) >>> dev->latency = (1000000 * dev->fifo_size) / >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-i2c" in >> the body of a message to majordomo@xxxxxxxxxxxxxxx >> More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
