[PATCH] crypto: atmel-i2c - Fix wakeup fail

[Jianhui Zhao]

The wake token cannot be sent without ignoring the nack for the
device address

Signed-off-by: Jianhui Zhao <zhaojh329@xxxxxxxxx>
---
 drivers/crypto/atmel-i2c.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/crypto/atmel-i2c.c b/drivers/crypto/atmel-i2c.c
index 1d3355913b40..13624cde67e8 100644
--- a/drivers/crypto/atmel-i2c.c
+++ b/drivers/crypto/atmel-i2c.c
@@ -3,6 +3,7 @@
  * Microchip / Atmel ECC (I2C) driver.
  *
  * Copyright (c) 2017, Microchip Technology Inc.
+ * Copyright (c) 2020 Jianhui Zhao <zhaojh329@xxxxxxxxx>
  * Author: Tudor Ambarus <tudor.ambarus@xxxxxxxxxxxxx>
  */
 
@@ -176,7 +177,8 @@ static int atmel_i2c_wakeup(struct i2c_client *client)
 	 * device is idle, asleep or during waking up. Don't check for error
 	 * when waking up the device.
 	 */
-	i2c_master_send(client, i2c_priv->wake_token, i2c_priv->wake_token_sz);
+	i2c_transfer_buffer_flags(client, i2c_priv->wake_token,
+				i2c_priv->wake_token_sz, I2C_M_IGNORE_NAK);
 
 	/*
 	 * Wait to wake the device. Typical execution times for ecdh and genkey
-- 
2.17.1