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Commit 4e2d93de authored by Jarkko Nikula's avatar Jarkko Nikula Committed by Wolfram Sang
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i2c: designware: Fix standard mode speed when configuring the slave mode 



Code sets bit DW_IC_CON_SPEED_FAST (0x4) always when configuring the slave
mode. This results incorrect register value DW_IC_CON_SPEED_HIGH (0x6)
when OR'ed together with DW_IC_CON_SPEED_STD (0x2).

Remove this and let the code set the speed mode bits according to clock
frequency or default to fast mode.

Signed-off-by: default avatarJarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: default avatarWolfram Sang <wsa@the-dreams.de>
parent 984277a0

drivers/i2c/busses/i2c-designware-platdrv.c

+1 −2
Original line number Original line Diff line number Diff line
@@ -198,8 +198,7 @@ static void i2c_dw_configure_slave(struct dw_i2c_dev *dev) 
	dev->functionality = I2C_FUNC_SLAVE | DW_IC_DEFAULT_FUNCTIONALITY;

	dev->functionality = I2C_FUNC_SLAVE | DW_IC_DEFAULT_FUNCTIONALITY;





	dev->slave_cfg = DW_IC_CON_RX_FIFO_FULL_HLD_CTRL |

	dev->slave_cfg = DW_IC_CON_RX_FIFO_FULL_HLD_CTRL |

			 DW_IC_CON_RESTART_EN | DW_IC_CON_STOP_DET_IFADDRESSED |

			 DW_IC_CON_RESTART_EN | DW_IC_CON_STOP_DET_IFADDRESSED;

			 DW_IC_CON_SPEED_FAST;





	dev->mode = DW_IC_SLAVE;

	dev->mode = DW_IC_SLAVE;