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Subject[PATCH v6 2/3] i2c: acpi: Initialize info.type from of_compatible
When using devicetree i2c_board_info.type is set to the compatible
string with the vendor prefix removed. For I2C devices described via
ACPI the i2c_board_info.type string is set to the ACPI device name. When
using ACPI and DT ids this string ends up something like "PRP0001:00".

If the of_compatible property is present try to use that instead. This
makes it easier to instantiate i2c drivers through ACPI with DT ids.

Signed-off-by: Dan O'Donovan <>
Reviewed-by: Andy Shevchenko <>
Reviewed-by: Jarkko Nikula <>
Tested-by: Jarkko Nikula <>
Acked-by: Wolfram Sang <>
drivers/i2c/i2c-core.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index 583e950..1e52395 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -221,7 +221,8 @@ static int i2c_acpi_get_info(struct acpi_device *adev,


- strlcpy(info->type, dev_name(&adev->dev), sizeof(info->type));
+ acpi_set_modalias(adev, dev_name(&adev->dev), info->type,
+ sizeof(info->type));

return 0;
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