linux/drivers/mfd/wm831x-core.c, branch v4.2

mfd: wolfson: Constify struct mfd_cell where possible

2014-01-06T09:13:25Z

As of commit 03e361b25ee8dfb1fd9b890072c23c4aae01c6c7 ("mfd: Stop setting refcounting pointers in original mfd_cell arrays"), the "cell" parameter of mfd_add_devices() is "const" again. Hence make all cell data passed to mfd_add_devices() const where possible. Signed-off-by: Geert Uytterhoeven Signed-off-by: Lee Jones

mfd: Use dev_get_platdata()

2013-07-31T12:01:29Z

Use the wrapper function for retrieving the platform data instead of accessing dev->platform_data directly. Signed-off-by: Jingoo Han Signed-off-by: Lee Jones

mfd: core: Push irqdomain mapping out into devices

2012-09-14T07:51:54Z

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 Signed-off-by: Samuel Ortiz

mfd: wm831x: Convert to IORESOURCE_REG

2012-09-11T08:15:03Z

This was originally written by Russell King who unfortunately found himself unable to take the patch futher. Signed-off-by: Mark Brown Acked-by: Arnd Bergmann Acked-by: Haojian Zhuang Tested-by: Haojian Zhuang Signed-off-by: Samuel Ortiz

mfd: Convert wm831x to irq_domain

2012-05-20T15:27:07Z

The modern idiom is to use irq_domain to allocate interrupts. This is useful partly to allow further infrastructure to be based on the domains and partly because it makes it much easier to allocate virtual interrupts to devices as we don't need to allocate a contiguous range of interrupt numbers. Convert the wm831x driver over to this infrastructure, using a legacy IRQ mapping if an irq_base is specified in platform data and otherwise using a linear mapping, always registering the interrupts even if they won't ever be used. Only boards which need to use the GPIOs as interrupts should need to use an irq_base. This means that we can't use the MFD irq_base management since the unless we're using an explicit irq_base from platform data we can't rely on a linear mapping of interrupts. Instead we need to map things via the irq_domain - provide a conveniencem function wm831x_irq() to save a small amount of typing when doing so. Looking at this I couldn't clearly see anything the MFD core could do to make this nicer. Since we're not supporting device tree yet there's no meaningful advantage if we don't do this conversion in one, the fact that the interrupt resources are used for repeated IP blocks makes accessor functions for the irq_domain more trouble to do than they're worth. Signed-off-by: Mark Brown Signed-off-by: Samuel Ortiz

mfd: Fix wm831x register range passing for recent ARM updates

2012-05-07T09:32:08Z

The removal of mach/io.h from most ARM platforms also set the range of valid IO ports to be empty for most platforms when previously any 32 bit integer had been valid. This makes it impossible to add IO resources as the added range is smaller than that of the root resource for IO ports. Since we're not really using IO memory at all fix this by defining our own root resource outside the normal tree and make that the parent of all IO resources. This also ensures we won't conflict with read IO ports if we ever run on a platform which happens to use them. Signed-off-by: Mark Brown Signed-off-by: Samuel Ortiz

mfd: wm831x: Convert to devm_regmap_init()

2012-02-22T13:57:05Z

Signed-off-by: Mark Brown Acked-by: Samuel Ortiz

mfd: Return an error on failed wm831x register writes

2012-01-08T23:37:40Z

Got dropped in the regmap conversion. Signed-off-by: Mark Brown Signed-off-by: Samuel Ortiz

mfd: Convert wm831x core driver to devm_kzalloc()

2012-01-08T23:37:28Z

Signed-off-by: Mark Brown Signed-off-by: Samuel Ortiz

mfd: Enable rbtree cache for wm831x devices

2011-10-17T22:03:32Z

Most useful with the regulators where we're doing a lot of read/modify/write updates in potentially performance critical paths. Providing some defaults would make this slightly better but this is a win right now. Signed-off-by: Mark Brown Acked-by: Samuel Ortiz