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[PATCH v6 2/3] i2c: acpi: Initialize info.type from of_compatible

From Dan O'Donovan <dan@emutex.com>
Newsgroups linux.kernel
Subject [PATCH v6 2/3] i2c: acpi: Initialize info.type from of_compatible
Date 2017-02-05 17:40 +0100
Message-ID <t7y14-1hp-21@gated-at.bofh.it> (permalink)
References <t73zX-64h-3@gated-at.bofh.it> <t7y14-1hp-5@gated-at.bofh.it>
Organization linux.* mail to news gateway

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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>
---
 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,
 
 	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;
 }
-- 
2.7.4

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Thread

[PATCH v5 0/3] Init device ids from ACPI of_compatible Dan O'Donovan <dan@emutex.com> - 2017-02-04 09:10 +0100
  [PATCH v5 1/3] ACPI / bus: Export acpi_of_modalias equiv of of_modalias_node Dan O'Donovan <dan@emutex.com> - 2017-02-04 09:10 +0100
  [PATCH v6 3/3] spi: acpi: Initialize modalias from of_compatible Dan O'Donovan <dan@emutex.com> - 2017-02-05 17:40 +0100
    Re: [PATCH v6 3/3] spi: acpi: Initialize modalias from of_compatible Mark Brown <broonie@kernel.org> - 2017-02-06 17:40 +0100
  [PATCH v6 0/3] Init device ids from ACPI of_compatible Dan O'Donovan <dan@emutex.com> - 2017-02-05 17:40 +0100
    [PATCH v6 1/3] ACPI / bus: Export acpi_of_modalias equiv of of_modalias_node Dan O'Donovan <dan@emutex.com> - 2017-02-05 17:40 +0100
    [PATCH v6 2/3] i2c: acpi: Initialize info.type from of_compatible Dan O'Donovan <dan@emutex.com> - 2017-02-05 17:40 +0100
    Re: [PATCH v6 0/3] Init device ids from ACPI of_compatible "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2017-02-09 15:00 +0100

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