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authorWolfram Sang <wsa+renesas@sang-engineering.com>2018-07-23 22:26:12 +0200
committerWolfram Sang <wsa@the-dreams.de>2018-10-05 18:05:27 +0200
commitc96c0f2683804b710531e7b754dcd02b5ded6d4a (patch)
treec8fb511923a87bb3e0db9cee1973137f81950334 /drivers/i2c
parenti2c: qup: use core to detect 'no zero length' quirk (diff)
downloadlinux-c96c0f2683804b710531e7b754dcd02b5ded6d4a.tar.xz
linux-c96c0f2683804b710531e7b754dcd02b5ded6d4a.zip
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>
Diffstat (limited to 'drivers/i2c')
-rw-r--r--drivers/i2c/busses/i2c-tegra.c4
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,
};