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| author |  Jarkko Nikula <jarkko.nikula@linux.intel.com>
| 2024-02-13 14:48:46 +0200 |
|---|---|---|
| committer |  Andi Shyti <andi.shyti@kernel.org>
| 2024-02-27 01:51:34 +0100 |
| commit | c94612a72ac87b0337a0d85b9263266776ed4190 (patch) | |
| tree | 940156d4523f727487b6233a2556f6ad52781b2e /drivers/i2c | |
| parent | i2c: designware: Move interrupt handling functions before i2c_dw_xfer() (diff) | |
| download | linux-c94612a72ac87b0337a0d85b9263266776ed4190.tar.gz linux-c94612a72ac87b0337a0d85b9263266776ed4190.tar.bz2 linux-c94612a72ac87b0337a0d85b9263266776ed4190.zip | |
i2c: designware: Fix RX FIFO depth define on Wangxun 10Gb NIC
I believe RX FIFO depth define 0 is incorrect on Wangxun 10Gb NIC. It
must be at least 1 since code is able to read received data from the
DW_IC_DATA_CMD register.
For now this define is irrelevant since the txgbe_i2c_dw_xfer_quirk()
doesn't use the rx_fifo_depth member variable of struct dw_i2c_dev but
is needed when converting code into generic polling mode implementation.
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Tested-by: Jiawen Wu <jiawenwu@trustnetic.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/busses/i2c-designware-core.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/i2c/busses/i2c-designware-core.h b/drivers/i2c/busses/i2c-designware-core.h index 4d277ebcca92..bf8f140dc113 100644 --- a/drivers/i2c/busses/i2c-designware-core.h +++ b/drivers/i2c/busses/i2c-designware-core.h @@ -319,7 +319,7 @@ struct dw_i2c_dev { #define AMD_UCSI_INTR_EN 0xd #define TXGBE_TX_FIFO_DEPTH 4 -#define TXGBE_RX_FIFO_DEPTH 0 +#define TXGBE_RX_FIFO_DEPTH 1 struct i2c_dw_semaphore_callbacks { int (*probe)(struct dw_i2c_dev *dev); |