diff options
| author | Jean-Jacques Hiblot <jjhiblot@ti.com> | 2018-12-11 21:56:34 +0300 |
|---|---|---|
| committer | Heiko Schocher <hs@denx.de> | 2018-12-12 08:06:14 +0300 |
| commit | 22ecff594d9248f0a63e191e31d48f417a946d75 (patch) | |
| tree | a117f5cf3760cf5a9e5193cc233f1b42990e6185 /drivers/i2c | |
| parent | ee168783ae889cf449cee36cc1e51e108a210ed4 (diff) | |
| download | u-boot-22ecff594d9248f0a63e191e31d48f417a946d75.tar.xz | |
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>
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/tegra186_bpmp_i2c.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/i2c/tegra186_bpmp_i2c.c b/drivers/i2c/tegra186_bpmp_i2c.c index b4fff43269..793f3f59b5 100644 --- a/drivers/i2c/tegra186_bpmp_i2c.c +++ b/drivers/i2c/tegra186_bpmp_i2c.c @@ -85,6 +85,12 @@ static int tegra186_bpmp_i2c_xfer(struct udevice *dev, struct i2c_msg *msg, return 0; } +static int tegra186_bpmp_probe_chip(struct udevice *bus, uint chip_addr, + uint chip_flags) +{ + return 0; +} + static int tegra186_bpmp_i2c_probe(struct udevice *dev) { struct tegra186_bpmp_i2c *priv = dev_get_priv(dev); @@ -101,6 +107,7 @@ static int tegra186_bpmp_i2c_probe(struct udevice *dev) static const struct dm_i2c_ops tegra186_bpmp_i2c_ops = { .xfer = tegra186_bpmp_i2c_xfer, + .probe_chip = tegra186_bpmp_probe_chip, }; static const struct udevice_id tegra186_bpmp_i2c_ids[] = { |