On 17/11/2022 10:04, Akhil R wrote:
Set ACPI node as the primary fwnode of I2C adapter to allow
enumeration of child devices from the ACPI table
Signed-off-by: Zubair Waheed <zwaheed@xxxxxxxxxx>
Signed-off-by: Akhil R <akhilrajeev@xxxxxxxxxx>
---
drivers/i2c/busses/i2c-tegra.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c
index 954022c04cc4..69c9ae161bbe 100644
--- a/drivers/i2c/busses/i2c-tegra.c
+++ b/drivers/i2c/busses/i2c-tegra.c
@@ -1826,6 +1826,7 @@ static int tegra_i2c_probe(struct platform_device *pdev)
i2c_dev->adapter.class = I2C_CLASS_DEPRECATED;
i2c_dev->adapter.algo = &tegra_i2c_algo;
i2c_dev->adapter.nr = pdev->id;
+ ACPI_COMPANION_SET(&i2c_dev->adapter.dev, ACPI_COMPANION(&pdev->dev));
if (i2c_dev->hw->supports_bus_clear)
i2c_dev->adapter.bus_recovery_info = &tegra_i2c_recovery_info;
Do we always want to set as the primary fwnode even when booting with
device-tree? I some other drivers do, but I also see some others ...
if (has_acpi_companion(dev))
ACPI_COMPANION_SET(&i2c_dev->adapter.dev,
ACPI_COMPANION(&pdev->dev));
It would be nice to know why it is OK to always do this even for
device-tree because it is not clear to me.
Jon
--
nvpublic
