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 <dan@emutex.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Tested-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Acked-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index 583e95042a21d86fe235d2e9784a1f6a6723205b..1e52395e90a7417da1aceb97727ee6d6216b719d 100644 (file)
--- 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,
 
        acpi_dev_free_resource_list(&resource_list);
 
-       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;
 }