linux/drivers/of, branch v2.6.37

of/i2c: Fix request module by alias

2010-12-24T08:28:54Z

If we are registering an i2c device that has a device tree node like this real-world example: rtc@68 { compatible = "dallas,ds1337"; reg = <0x68>; }; of_i2c_register_devices() will try to load a module called ds1337.ko. There is no such module, so it will fail. If we look in modules.alias we will find entries like these: . . . alias i2c:ds1339 rtc_ds1307 alias i2c:ds1338 rtc_ds1307 alias i2c:ds1337 rtc_ds1307 alias i2c:ds1307 rtc_ds1307 alias i2c:ds1374 rtc_ds1374 . . . The module we want is really called rtc_ds1307.ko. If we request a module called "i2c:ds1337", the userspace module loader will do the right thing (unless it is busybox) and load rtc_ds1307.ko. So we add the I2C_MODULE_PREFIX to the request_module() string. Signed-off-by: David Daney Signed-off-by: Grant Likely

of/mips: Cleanup some include directives/files.

2010-10-21T17:10:11Z

The __init directives should go on the definitions of things, not the declaration, also __init is meaningless for inline functions, so remove it from prom.h. This allows us to get rid of a useless #include, but most of the rest of them are useless too, so kill them as well. If of_i2c.c needs irq definitions, it should include linux/irq.h directly, not assume indirect inclusion via asm/prom.h. Signed-off-by: David Daney Acked-by: Ralf Baechle Signed-off-by: Grant Likely

of/flattree: Eliminate need to provide early_init_dt_scan_chosen_arch

2010-10-21T17:10:10Z

This patch refactors the early init parsing of the chosen node so that architectures aren't forced to provide an empty implementation of early_init_dt_scan_chosen_arch. Instead, if an architecture wants to do something different, it can either use a wrapper function around early_init_dt_scan_chosen(), or it can replace it altogether. This patch was written in preparation to adding device tree support to both x86 ad MIPS. Signed-off-by: Grant Likely Tested-by: David Daney

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

2010-10-21T17:10:10Z

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: use __be32 types for big-endian device tree data

2010-10-13T03:58:42Z

Use the sparse annotations so we can keep track of endianness. Signed-off-by: Jeremy Kerr Signed-off-by: Grant Likely

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

2010-10-13T03:58:27Z

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/promtree: add package-to-path support to pdt

2010-10-13T03:58:08Z

package-to-path is a PROM function which tells us the real (full) name of the node. This provides a hook for that in the prom ops struct, and makes use of it in the pdt code when attempting to determine a node's name. If the hook is available, try using it (falling back to looking at the "name" property if it fails). Signed-off-by: Andres Salomon Signed-off-by: Grant Likely

of/promtree: add of_pdt namespace to pdt code

2010-10-13T03:58:00Z

For symbols still lacking namespace qualifiers, add an of_pdt_ prefix. Signed-off-by: Andres Salomon Acked-by: David S. Miller Signed-off-by: Grant Likely

of/promtree: no longer call prom_ functions directly; use an ops structure

2010-10-13T03:57:53Z

Rather than assuming an architecture defines prom_getchild and friends, define an ops struct with hooks for the various prom functions that pdt.c needs. This ops struct is filled in by the arch-(and sometimes firmware-)specific code, and passed to of_pdt_build_devicetree. Update sparc code to define the ops struct as well. Signed-off-by: Andres Salomon Acked-by: David S. Miller Signed-off-by: Grant Likely

of/promtree: make drivers/of/pdt.c no longer sparc-only

2010-10-11T03:53:30Z

Clean up pdt.c: - make build dependent upon config OF_PROMTREE - #ifdef out the sparc-specific stuff - create pdt-specific header Signed-off-by: Andres Salomon Acked-by: David S. Miller Signed-off-by: Grant Likely