Allow sending restart conditions upon direction change as this is required by some chips.
Signed-off-by: Marek Vasut marex@denx.de Cc: Stefan Roese sr@denx.de Cc: Alexey Brodkin abrodkin@synopsys.com Cc: Heiko Schocher hs@denx.de --- drivers/i2c/designware_i2c.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/i2c/designware_i2c.c b/drivers/i2c/designware_i2c.c index d4df35a69a..8cfed2194c 100644 --- a/drivers/i2c/designware_i2c.c +++ b/drivers/i2c/designware_i2c.c @@ -374,7 +374,8 @@ static void __dw_i2c_init(struct i2c_regs *i2c_base, int speed, int slaveaddr) /* Disable i2c */ dw_i2c_enable(i2c_base, false);
- writel((IC_CON_SD | IC_CON_SPD_FS | IC_CON_MM), &i2c_base->ic_con); + writel(IC_CON_SD | IC_CON_RE | IC_CON_SPD_FS | IC_CON_MM, + &i2c_base->ic_con); writel(IC_RX_TL, &i2c_base->ic_rx_tl); writel(IC_TX_TL, &i2c_base->ic_tx_tl); writel(IC_STOP_DET, &i2c_base->ic_intr_mask);