diff options
Diffstat (limited to 'drivers/mfd/mfd-core.c')
| -rw-r--r-- | drivers/mfd/mfd-core.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/mfd/mfd-core.c b/drivers/mfd/mfd-core.c index f8b77711ad2d..7604f4e5df40 100644 --- a/drivers/mfd/mfd-core.c +++ b/drivers/mfd/mfd-core.c @@ -21,6 +21,10 @@ #include <linux/irqdomain.h> #include <linux/of.h> +static struct device_type mfd_dev_type = { + .name = "mfd_device", +}; + int mfd_cell_enable(struct platform_device *pdev) { const struct mfd_cell *cell = mfd_get_cell(pdev); @@ -91,6 +95,7 @@ static int mfd_add_device(struct device *parent, int id, goto fail_device; pdev->dev.parent = parent; + pdev->dev.type = &mfd_dev_type; if (parent->of_node && cell->of_compatible) { for_each_child_of_node(parent->of_node, np) { @@ -204,10 +209,16 @@ EXPORT_SYMBOL(mfd_add_devices); static int mfd_remove_devices_fn(struct device *dev, void *c) { - struct platform_device *pdev = to_platform_device(dev); - const struct mfd_cell *cell = mfd_get_cell(pdev); + struct platform_device *pdev; + const struct mfd_cell *cell; atomic_t **usage_count = c; + if (dev->type != &mfd_dev_type) + return 0; + + pdev = to_platform_device(dev); + cell = mfd_get_cell(pdev); + /* find the base address of usage_count pointers (for freeing) */ if (!*usage_count || (cell->usage_count < *usage_count)) *usage_count = cell->usage_count; |