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| author |   Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2017-07-17 17:13:28 +0300 |
|---|---|---|
| committer |   Wolfram Sang <wsa@the-dreams.de> | 2017-07-31 15:50:33 +0200 |
| commit | c64ffff7a9d1eee6624d3eaab36968fe6df31a9f (patch) | |
| tree | af1c1ce0e4a1488ba9ab00ad80ec3b723800913b /drivers/i2c/i2c-core.h | |
| parent | Linux 4.13-rc3 (diff) | |
| download | linux-dev-c64ffff7a9d1eee6624d3eaab36968fe6df31a9f.tar.xz linux-dev-c64ffff7a9d1eee6624d3eaab36968fe6df31a9f.zip | |
i2c: core: Allow empty id_table in ACPI case as well
For now empty ID table is not allowed with ACPI and prevents driver to
be probed.
Add a check to allow empty ID table.
This introduces a helper i2c_acpi_match_device().
Note, we rename some static function in i2c-core-acpi.c to distinguish
with public API.
Fixes: da10c06a044b ("i2c: Make I2C ID tables non-mandatory for DT'ed devices")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Rajmohan Mani <rajmohan.mani@intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
[wsa: needed to get some drivers probed again]
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Diffstat (limited to 'drivers/i2c/i2c-core.h')
| -rw-r--r-- | drivers/i2c/i2c-core.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/i2c/i2c-core.h b/drivers/i2c/i2c-core.h index 3b63f5e5b89c..3d3d9bf02101 100644 --- a/drivers/i2c/i2c-core.h +++ b/drivers/i2c/i2c-core.h @@ -31,9 +31,18 @@ int i2c_check_addr_validity(unsigned addr, unsigned short flags); int i2c_check_7bit_addr_validity_strict(unsigned short addr); #ifdef CONFIG_ACPI +const struct acpi_device_id * +i2c_acpi_match_device(const struct acpi_device_id *matches, + struct i2c_client *client); void i2c_acpi_register_devices(struct i2c_adapter *adap); #else /* CONFIG_ACPI */ static inline void i2c_acpi_register_devices(struct i2c_adapter *adap) { } +static inline const struct acpi_device_id * +i2c_acpi_match_device(const struct acpi_device_id *matches, + struct i2c_client *client) +{ + return NULL; +} #endif /* CONFIG_ACPI */ extern struct notifier_block i2c_acpi_notifier; |