i2c: tegra: use core to detect 'no zero length' quirk

And don't reimplement in the driver.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

1 files changed, 1 insertions, 3 deletions

diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c
index 60c8561fbe65..437294ea2f0a 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,
 };