diff options
| author |   Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2021-10-14 16:47:55 +0300 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-10-20 19:38:58 +0200 |
| commit | 0a2d47aa32f0e972a136ddea15bddfdd9957e292 (patch) | |
| tree | 471977541363f521ea54414b024fb49a15023753 /drivers/i2c | |
| parent | driver core: Provide device_match_acpi_handle() helper (diff) | |
| download | linux-dev-0a2d47aa32f0e972a136ddea15bddfdd9957e292.tar.xz linux-dev-0a2d47aa32f0e972a136ddea15bddfdd9957e292.zip | |
i2c: acpi: Replace custom function with device_match_acpi_handle()
Since driver core provides a generic device_match_acpi_handle()
we may replace the custom one with it. This unifies code to find
an adapter with the similar one which finds a client.
Acked-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://lore.kernel.org/r/20211014134756.39092-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/i2c-core-acpi.c | 22 |
1 files changed, 9 insertions, 13 deletions
diff --git a/drivers/i2c/i2c-core-acpi.c b/drivers/i2c/i2c-core-acpi.c index 546cc935e035..80631f93ad2f 100644 --- a/drivers/i2c/i2c-core-acpi.c +++ b/drivers/i2c/i2c-core-acpi.c @@ -398,24 +398,20 @@ u32 i2c_acpi_find_bus_speed(struct device *dev) } EXPORT_SYMBOL_GPL(i2c_acpi_find_bus_speed); -static int i2c_acpi_find_match_adapter(struct device *dev, const void *data) -{ - struct i2c_adapter *adapter = i2c_verify_adapter(dev); - - if (!adapter) - return 0; - - return ACPI_HANDLE(dev) == (acpi_handle)data; -} - struct i2c_adapter *i2c_acpi_find_adapter_by_handle(acpi_handle handle) { + struct i2c_adapter *adapter; struct device *dev; - dev = bus_find_device(&i2c_bus_type, NULL, handle, - i2c_acpi_find_match_adapter); + dev = bus_find_device(&i2c_bus_type, NULL, handle, device_match_acpi_handle); + if (!dev) + return NULL; + + adapter = i2c_verify_adapter(dev); + if (!adapter) + put_device(dev); - return dev ? i2c_verify_adapter(dev) : NULL; + return adapter; } EXPORT_SYMBOL_GPL(i2c_acpi_find_adapter_by_handle); |