linux.git/drivers/of/platform.c, branch v2.6.37

of/device: Rework to use common platform_device_alloc() for allocating devices

2010-10-21T17:10:10+00:00

The current code allocates and manages platform_devices created from
the device tree manually.  It also uses an unsafe shortcut for
allocating the platform_device and the resource table at the same
time. (which I added in the last rework; sorry).

This patch refactors the code to use platform_device_alloc() for
allocating new devices.  This reduces the amount of custom code
implemented by of_platform, eliminates the unsafe alloc trick, and has
the side benefit of letting the platform_bus code manage freeing the
device data and resources when the device is freed.

Signed-off-by: Grant Likely 
Cc: Benjamin Herrenschmidt 
Cc: Greg Kroah-Hartman 
Cc: "David S. Miller" 
Cc: Michal Simek

of/irq: remove references to NO_IRQ in drivers/of/platform.c

2010-10-13T03:58:27+00:00

Instead of referencing NO_IRQ in platform.c, define some helper functions
in irq.c to call instead from platform.c.  Keep NO_IRQ usage local to
irq.c, and define NO_IRQ if not defined in headers.

Signed-off-by: Andres Salomon 
Signed-off-by: Grant Likely

of/platform: Register of_platform_drivers with an "of:" prefix

2010-08-01T07:44:18+00:00

Currently there are some drivers in tree which register both a
platform_driver and an of_platform_driver with the same name.  This is
a temporary situation until all the relevant of_platform_drivers are
converted to be normal platform_drivers.  Until then, this patch gives
all the of_platform_drivers an "of:" prefix to protect against bogus
matches and namespace conflicts.

of/device: Make of_device_make_bus_id() usable by other code.

2010-07-30T06:03:58+00:00

The AMBA bus should also use of_device_make_bus_id() when populating device
out of device tree data.  This patch makes the function non-static, and
adds a suitable prototype in of_device.h

Signed-off-by: Grant Likely

of: remove of_default_bus_ids

2010-07-24T15:58:22+00:00

This list used was by only two platforms with all other platforms defining an
own list of valid bus id's to pass to of_platform_bus_probe.  This patch:

i)   copies the default list to the two platforms that depended on it (powerpc)
ii)  remove the usage of of_default_bus_ids in of_platform_bus_probe
iii) removes the definition of the list from all architectures that defined it

Passing a NULL 'matches' parameter to of_platform_bus_probe is still valid; the
function returns no error in that case as the NULL value is equivalent to an
empty list.

Signed-off-by: Jonas Bonn 
[grant.likely@secretlab.ca: added __initdata annotations, warn on and return error on missing match table, and fix whitespace errors]
Signed-off-by: Grant Likely

of: make of_find_device_by_node generic

2010-07-24T15:58:22+00:00

There's no need for this function to be architecture specific and all four
architectures defining it had the same definition.  The function has been
moved to drivers/of/platform.c.

Signed-off-by: Jonas Bonn 
[grant.likely@secretlab.ca: moved to drivers/of/platform.c, simplified code, and added kerneldoc comment]
Signed-off-by: Grant Likely 
Acked-by: David S. Miller

of/device: Replace of_device with platform_device in includes and core code

2010-07-24T15:58:21+00:00

of_device is currently just an #define alias to platform_device until it
gets removed entirely.  This patch removes references to it from the
include directories and the core drivers/of code.

Signed-off-by: Grant Likely 
Acked-by: David S. Miller

of/device: Protect against binding of_platform_drivers to non-OF devices

2010-07-24T15:57:53+00:00

There is an unlikely chance of this situation is occurring, but it is
easy to protect against.  If a matching entry cannot be found in the
of_match_table, then don't bind the driver.

Signed-off-by: Grant Likely

of: Merge of_platform_bus_type with platform_bus_type

2010-07-24T15:57:51+00:00

of_platform_bus was being used in the same manner as the platform_bus.
The only difference being that of_platform_bus devices are generated
from data in the device tree, and platform_bus devices are usually
statically allocated in platform code.  Having them separate causes
the problem of device drivers having to be registered twice if it
was possible for the same device to appear on either bus.

This patch removes of_platform_bus_type and registers all of_platform
bus devices and drivers on the platform bus instead.  A previous patch
made the of_device structure an alias for the platform_device structure,
and a shim is used to adapt of_platform_drivers to the platform bus.

After all of of_platform_bus drivers are converted to be normal platform
drivers, the shim code can be removed.

Signed-off-by: Grant Likely 
Acked-by: David S. Miller

of/device: Fix build errors for non-ppc and non-microblaze

2010-07-19T04:39:55+00:00

Only powerpc and microblaze supply (struct device *)->archdata.dma_mask.
This patch stops referencing it on other architectures.

Signed-off-by: Grant Likely