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Subject[PATCH V1] i2c: designware: fix wrong tx/rx fifo for ACPI
Date
ACPI always sets txfifo and rxfifo to 32. This configuration will
cause problem if the IP core supports a fifo size of 16 bytes only.
Set the default value to 0 so the driver will get these parameters
from IP core.

Signed-off-by: Tin Huynh <tnhuynh@apm.com>
---
drivers/i2c/busses/i2c-designware-platdrv.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c
index 0b42a12..c88a4b8 100644
--- a/drivers/i2c/busses/i2c-designware-platdrv.c
+++ b/drivers/i2c/busses/i2c-designware-platdrv.c
@@ -97,8 +97,8 @@ static int dw_i2c_acpi_configure(struct platform_device *pdev)
const struct acpi_device_id *id;

dev->adapter.nr = -1;
- dev->tx_fifo_depth = 32;
- dev->rx_fifo_depth = 32;
+ dev->tx_fifo_depth = 0;
+ dev->rx_fifo_depth = 0;

/*
* Try to get SDA hold time and *CNT values from an ACPI method if
--
1.7.1
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