diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/mfd/core.h | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/include/linux/mfd/core.h b/include/linux/mfd/core.h index 1fd7c4467e5a..aefc378f8dc9 100644 --- a/include/linux/mfd/core.h +++ b/include/linux/mfd/core.h @@ -33,9 +33,10 @@ struct mfd_cell { /* driver-specific data for MFD-aware "cell" drivers */ void *driver_data; - /* platform_data can be used to either pass data to "generic" - driver or as a hook to mfd_cell for the "cell" drivers */ + /* platform_data can be used to pass data to "generic" drivers */ void *platform_data; + + /* unused */ size_t data_size; /* @@ -55,6 +56,24 @@ struct mfd_cell { bool pm_runtime_no_callbacks; }; +/* + * Given a platform device that's been created by mfd_add_devices(), fetch + * the mfd_cell that created it. + */ +static inline const struct mfd_cell *mfd_get_cell(struct platform_device *pdev) +{ + return pdev->dev.platform_data; +} + +/* + * Given a platform device that's been created by mfd_add_devices(), fetch + * the .platform_data entry from the mfd_cell that created it. + */ +static inline void *mfd_get_data(struct platform_device *pdev) +{ + return mfd_get_cell(pdev)->platform_data; +} + extern int mfd_add_devices(struct device *parent, int id, const struct mfd_cell *cells, int n_devs, struct resource *mem_base, |