[PATCH AUTOSEL 5.5 500/542] i2c: cros-ec-tunnel: Fix slave device enumeration

[Sasha Levin]

From: Akshu Agrawal <akshu.agrawal@xxxxxxx>

[ Upstream commit 8ff2d7ca4a55dfabf12e876369835bd024eb4621 ]

During adding of the adapter the slave device registration
use to fail as the acpi companion field was not populated.

Fixes: 9af1563a5486 ("i2c: cros-ec-tunnel: Make the device acpi compatible")
Signed-off-by: Akshu Agrawal <akshu.agrawal@xxxxxxx>
Acked-by: Raul E Rangel <rrangel@xxxxxxxxxxxx>
Reviewed-by: Enric Balletbo i Serra <enric.balletbo@xxxxxxxxxxxxx>
Signed-off-by: Wolfram Sang <wsa@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/i2c/busses/i2c-cros-ec-tunnel.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/i2c/busses/i2c-cros-ec-tunnel.c b/drivers/i2c/busses/i2c-cros-ec-tunnel.c
index 958161c71985d..8a2db3ac3b3c7 100644
--- a/drivers/i2c/busses/i2c-cros-ec-tunnel.c
+++ b/drivers/i2c/busses/i2c-cros-ec-tunnel.c
@@ -273,6 +273,7 @@ static int ec_i2c_probe(struct platform_device *pdev)
 	bus->adap.dev.parent = &pdev->dev;
 	bus->adap.dev.of_node = pdev->dev.of_node;
 	bus->adap.retries = I2C_MAX_RETRIES;
+	ACPI_COMPANION_SET(&bus->adap.dev, ACPI_COMPANION(&pdev->dev));
 
 	err = i2c_add_adapter(&bus->adap);
 	if (err)
-- 
2.20.1