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i2c: acpi: Add i2c_acpi_new_device_by_fwnode() function

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Change i2c_acpi_new_device() into i2c_acpi_new_device_by_fwnode() and
add a static inline wrapper providing the old i2c_acpi_new_device()
behavior.

This is necessary because in some cases we may only have access
to the fwnode / acpi_device and not to the matching physical-node
struct device *.

Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20211203102857.44539-4-hdegoede@redhat.com
This commit is contained in:
Hans de Goede 2021-12-03 11:28:46 +01:00
parent fb90e58f7c
commit c537be0bfa
2 changed files with 24 additions and 10 deletions
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17
include/linux/i2c.h
View file

@ -1025,8 +1025,9 @@ bool i2c_acpi_get_i2c_resource(struct acpi_resource *ares,
struct acpi_resource_i2c_serialbus **i2c);
int i2c_acpi_client_count(struct acpi_device *adev);
u32 i2c_acpi_find_bus_speed(struct device *dev);
struct i2c_client *i2c_acpi_new_device(struct device *dev, int index,
struct i2c_board_info *info);
struct i2c_client *i2c_acpi_new_device_by_fwnode(struct fwnode_handle *fwnode,
int index,
struct i2c_board_info *info);
struct i2c_adapter *i2c_acpi_find_adapter_by_handle(acpi_handle handle);
bool i2c_acpi_waive_d0_probe(struct device *dev);
#else
@ -1043,8 +1044,9 @@ static inline u32 i2c_acpi_find_bus_speed(struct device *dev)
{
return 0;
}
static inline struct i2c_client *i2c_acpi_new_device(struct device *dev,
int index, struct i2c_board_info *info)
static inline struct i2c_client *i2c_acpi_new_device_by_fwnode(
struct fwnode_handle *fwnode, int index,
struct i2c_board_info *info)
{
return ERR_PTR(-ENODEV);
}
@ -1058,4 +1060,11 @@ static inline bool i2c_acpi_waive_d0_probe(struct device *dev)
}
#endif /* CONFIG_ACPI */
static inline struct i2c_client *i2c_acpi_new_device(struct device *dev,
int index,
struct i2c_board_info *info)
{
return i2c_acpi_new_device_by_fwnode(dev_fwnode(dev), index, info);
}
#endif /* _LINUX_I2C_H */