[U-Boot] [PATCH v4 3/6] i2c: rcar_i2c: Fix sending of slave addresses

[Ismael Luceno Cortes]

Do the reset before clearing the MSR, otherwise it may result in a read
or write operation instead if the start condition is repeated.

Signed-off-by: Ismael Luceno <ismael.luceno at silicon-gears.com>
Reviewed-by: Marek Vasut <marek.vasut+renesas at gmail.com>
---

Notes:
    Changes since v1:
    - Rebased on top of patch 1050650 ("i2c: rcar_i2c: Add Gen3 SoC support")

 drivers/i2c/rcar_i2c.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/i2c/rcar_i2c.c b/drivers/i2c/rcar_i2c.c
index eb64115c51..a2c62cf934 100644
--- a/drivers/i2c/rcar_i2c.c
+++ b/drivers/i2c/rcar_i2c.c
@@ -133,9 +133,11 @@ static int rcar_i2c_set_addr(struct udevice *dev, u8 chip, u8 read)
 	}
 
 	writel((chip << 1) | read, priv->base + RCAR_I2C_ICMAR);
-	writel(0, priv->base + RCAR_I2C_ICMSR);
+	/* Reset */
 	writel(RCAR_I2C_ICMCR_MDBS | RCAR_I2C_ICMCR_MIE | RCAR_I2C_ICMCR_ESG,
 	       priv->base + RCAR_I2C_ICMCR);
+	/* Clear Status */
+	writel(0, priv->base + RCAR_I2C_ICMSR);
 
 	ret = wait_for_bit_le32(priv->base + RCAR_I2C_ICMSR, mask,
 				true, 100, true);
-- 
2.19.1