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.
Reported-By:Nishanth Menon <nm@xxxxxx>
Signed-off-by: Shubhrajyoti D <shubhrajyoti@xxxxxx>
---
drivers/i2c/busses/i2c-omap.c | 9 ++++-----
1 files changed, 4 insertions(+), 5 deletions(-)
diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c
index 58a58c7..934b52c 100644
--- a/drivers/i2c/busses/i2c-omap.c
+++ b/drivers/i2c/busses/i2c-omap.c
@@ -1059,13 +1059,12 @@ 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_4430) {
- dev->fifo_size = 0;
+ dev->fifo_size = (dev->fifo_size / 2);
+ if (dev->rev >= OMAP_I2C_REV_ON_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) /
--
1.7.1
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