diff options
| author | Jarkko Nikula <jarkko.nikula@linux.intel.com> | 2024-02-13 15:48:46 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-04-13 14:07:35 +0300 |
| commit | 30930f0f4674e4aa53d60a04e7185b854c61feeb (patch) | |
| tree | 96c9d0beb0bba3f2461b7ab2fc60399cbfb30845 /drivers | |
| parent | cd0a1835bf84f89e6c1648372b8e653c20cc7e5e (diff) | |
| download | linux-30930f0f4674e4aa53d60a04e7185b854c61feeb.tar.xz | |
i2c: designware: Fix RX FIFO depth define on Wangxun 10Gb NIC
[ Upstream commit c94612a72ac87b0337a0d85b9263266776ed4190 ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers')
| -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 a7f6f3eafad7..ae835000fd32 100644 --- a/drivers/i2c/busses/i2c-designware-core.h +++ b/drivers/i2c/busses/i2c-designware-core.h @@ -318,7 +318,7 @@ 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); |