[PATCH 3/6] mfd: core: add helper function to register hotplug devices

From: Johan Hovold
Date: Fri Sep 26 2014 - 06:59:59 EST

Hot-pluggable multi-function devices should always be registered with
PLATFORM_DEVID_AUTO to avoid name collisions on the platform bus. This
helper also hides the memory map and irq parameters, which aren't used
by hot-pluggable (e.g. USB-based) devices.

Signed-off-by: Johan Hovold <johan@xxxxxxxxxx>
include/linux/mfd/core.h | 7 +++++++
1 file changed, 7 insertions(+)

diff --git a/include/linux/mfd/core.h b/include/linux/mfd/core.h
index f543de91ce19..1e47262a1c63 100644
--- a/include/linux/mfd/core.h
+++ b/include/linux/mfd/core.h
@@ -108,6 +108,13 @@ extern int mfd_add_devices(struct device *parent, int id,
struct resource *mem_base,
int irq_base, struct irq_domain *irq_domain);

+static inline int mfd_add_hotplug_devices(struct device *parent,
+ const struct mfd_cell *cells, int n_devs)
+ return mfd_add_devices(parent, PLATFORM_DEVID_AUTO, cells, n_devs,
+ NULL, 0, NULL);
extern void mfd_remove_devices(struct device *parent);


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