Commit c94612a7 authored by Jarkko Nikula's avatar Jarkko Nikula Committed by Andi Shyti
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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: default avatarJarkko Nikula <jarkko.nikula@linux.intel.com>
Tested-by: default avatarJiawen Wu <jiawenwu@trustnetic.com>
Signed-off-by: default avatarAndi Shyti <andi.shyti@kernel.org>
parent bd002efa

drivers/i2c/busses/i2c-designware-core.h

+1 −1
Original line number Diff line number Diff line
@@ -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);