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    Subject[PATCH AUTOSEL 5.5 500/542] i2c: cros-ec-tunnel: Fix slave device enumeration
    Date
    From: Akshu Agrawal <akshu.agrawal@amd.com>

    [ 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@amd.com>
    Acked-by: Raul E Rangel <rrangel@chromium.org>
    Reviewed-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
    Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    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
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