tree a117f5cf3760cf5a9e5193cc233f1b42990e6185
parent da75cc6d5ca3493e872f752d01f81c2870f8d731
author Jean-Jacques Hiblot <jjhiblot@ti.com> 1544554594 +0100
committer Heiko Schocher <hs@denx.de> 1544591174 +0100

i2c: tegra: Fix regression by implementing a dummy probe_chip() callback

Commit f32a8007ef0f ("dm: i2c: Make i2c_get_chip_for_busnum() fail if the
chip is not detected") introduced a regression for the NVIDIA Jetson TX2.

For some reason the xfer callback of the tegra i2c driver doesn't support
probing the I2C devices with a 0-length message.
Fixing the regression by providing a dummy implementation of probe_chip()
that does nothing.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Tested-by: Stephen Warren <swarren@nvidia.com>