From: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>
[ Upstream commit c96c0f2683804b710531e7b754dcd02b5ded6d4a ]
And don't reimplement in the driver.
Signed-off-by: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>
Acked-by: Jon Hunter <jonathanh@xxxxxxxxxx>
Signed-off-by: Wolfram Sang <wsa@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/i2c/busses/i2c-tegra.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c
index ef13b6ce9d8de..47d196c026ba6 100644
--- a/drivers/i2c/busses/i2c-tegra.c
+++ b/drivers/i2c/busses/i2c-tegra.c
@@ -684,9 +684,6 @@ static int tegra_i2c_xfer_msg(struct tegra_i2c_dev *i2c_dev,
tegra_i2c_flush_fifos(i2c_dev);
- if (msg->len == 0)
- return -EINVAL;
-
i2c_dev->msg_buf = msg->buf;
i2c_dev->msg_buf_remaining = msg->len;
i2c_dev->msg_err = I2C_ERR_NONE;
@@ -831,6 +828,7 @@ static const struct i2c_algorithm tegra_i2c_algo = {
/* payload size is only 12 bit */
static const struct i2c_adapter_quirks tegra_i2c_quirks = {
+ .flags = I2C_AQ_NO_ZERO_LEN,
.max_read_len = 4096,
.max_write_len = 4096 - 12,
};
--
2.20.1
