From 00500147cbd3fc51353d0d003eaa9d31c72c0d50 Mon Sep 17 00:00:00 2001 From: Suzuki K Poulose Date: Tue, 23 Jul 2019 23:18:36 +0100 Subject: drivers: Introduce device lookup variants by ACPI_COMPANION device Add a generic helper to match a device by the ACPI_COMPANION device and provide wrappers for the device lookup APIs. Cc: Len Brown Cc: linux-acpi@vger.kernel.org Cc: linux-spi@vger.kernel.org Cc: Mika Westerberg Cc: linux-i2c@vger.kernel.org Cc: "Rafael J. Wysocki" Signed-off-by: Suzuki K Poulose Acked-by: Mark Brown Acked-by: Wolfram Sang # I2C parts Link: https://lore.kernel.org/r/20190723221838.12024-6-suzuki.poulose@arm.com Signed-off-by: Greg Kroah-Hartman --- drivers/base/core.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers/base/core.c') diff --git a/drivers/base/core.c b/drivers/base/core.c index 3abc32b60c0a..57d71bc2c559 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -3373,3 +3373,9 @@ int device_match_devt(struct device *dev, const void *pdevt) return dev->devt == *(dev_t *)pdevt; } EXPORT_SYMBOL_GPL(device_match_devt); + +int device_match_acpi_dev(struct device *dev, const void *adev) +{ + return ACPI_COMPANION(dev) == adev; +} +EXPORT_SYMBOL(device_match_acpi_dev); -- cgit