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authorMark Brown <broonie@opensource.wolfsonmicro.com>2012-09-11 15:16:36 +0800
committerSamuel Ortiz <sameo@linux.intel.com>2012-09-15 23:22:04 +0200
commit0848c94fb4a5cc213a7fb0fb3a5721ad6e16f096 (patch)
treed529ea8370d62b7c3c1dfd42a6714c9bd052ef39 /include
parenta0e35322910555e20e9eced3f050a76c7b3a1f92 (diff)
mfd: core: Push irqdomain mapping out into devices
Currently the MFD core supports remapping MFD cell interrupts using an irqdomain but only if the MFD is being instantiated using device tree and only if the device tree bindings use the pattern of registering IPs in the device tree with compatible properties. This will be actively harmful for drivers which support non-DT platforms and use this pattern for their DT bindings as it will mean that the core will silently change remapping behaviour and it is also limiting for drivers which don't do DT with this particular pattern. There is also a potential fragility if there are interrupts not associated with MFD cells and all the cells are omitted from the device tree for some reason. Instead change the code to take an IRQ domain as an optional argument, allowing drivers to take the decision about the parent domain for their interrupts. The one current user of this feature is ab8500-core, it has the domain lookup pushed out into the driver. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'include')
-rw-r--r--include/linux/mfd/core.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/mfd/core.h b/include/linux/mfd/core.h
index 3a8435a8058..cebe97ee98b 100644
--- a/include/linux/mfd/core.h
+++ b/include/linux/mfd/core.h
@@ -16,6 +16,8 @@
#include <linux/platform_device.h>
+struct irq_domain;
+
/*
* This struct describes the MFD part ("cell").
* After registration the copy of this structure will become the platform data
@@ -98,7 +100,7 @@ static inline const struct mfd_cell *mfd_get_cell(struct platform_device *pdev)
extern int mfd_add_devices(struct device *parent, int id,
struct mfd_cell *cells, int n_devs,
struct resource *mem_base,
- int irq_base);
+ int irq_base, struct irq_domain *irq_domain);
extern void mfd_remove_devices(struct device *parent);