kernel/drivers/base/regmap/regmap-spi.c, branch linux-4.1.y

regmap: add DT endianness binding support.

2014-08-16T21:56:23Z

For many drivers which will support rich endianness of Devices need define DT properties by itself with the binding support. The endianness using regmap: Index Device Properties if needs bytes-swap, or just ignore it ------------------------------------------------------------- 1 BE 'big-endian' 2 LE 'little-endian' The properties include all the register values and the buffers. And these properties are very usful for the MMIO devices: Such as: a memory-mapped device, on one SoC is in BE mode, while in another SoC will be in LE mode, and the CPU will always in LE mode. For the first case, we must use cpu_to_be32/be32_to_cpu for 32-bit registers accessing, so the 'big-endian' property is needed. For the second case, we can just ignore the bytes-swap functions like cpu_to_le32/le32_to_cpu, so the 'little-endian' property could be abscent. And vice versa... Signed-off-by: Xiubo Li Signed-off-by: Mark Brown

drivers/base: delete non-required instances of include

2014-02-14T22:31:37Z

None of these files are actually using any __init type directives and hence don't need to include . Most are just a left over from __devinit and __cpuinit removal, or simply due to code getting copied from one driver to the next. Cc: Len Brown Signed-off-by: Paul Gortmaker Acked-by: Pavel Machek Acked-by: Rafael J. Wysocki Acked-by: Mark Brown Signed-off-by: Greg Kroah-Hartman

regmap: spi: Handle async writes of only one buffer

2013-10-14T21:09:26Z

If the value is zero then assume it has been included in the register data and don't send anything, minimising the number of interactions with the hardware. Signed-off-by: Mark Brown

regmap: spi: Handle allocation failures gracefully

2013-02-05T14:14:32Z

Signed-off-by: Mark Brown

regmap: spi: Support asynchronous I/O for SPI

2013-01-29T04:16:21Z

Signed-off-by: Mark Brown

regmap: introduce explicit bus_context for bus callbacks

2012-04-06T09:47:34Z

The only context needed by I2C and SPI bus definitions is the device itself; this can be converted to an i2c_client or spi_device in order to perform IO on the device. However, other bus types may need more context in order to perform IO. Enable this by having regmap_init accept a bus_context parameter, and pass this to all bus callbacks. The existing callbacks simply pass the struct device here. Future bus types may pass something else. Signed-off-by: Stephen Warren Signed-off-by: Mark Brown

regmap: Implement managed regmap_init()

2012-01-30T21:06:43Z

Save error handling and unwinding code in drivers by providing managed versions of the regmap init functions, simplifying usage. Signed-off-by: Mark Brown

Merge branch 'for-linus' of git://opensource.wolfsonmicro.com/regmap

2011-10-25T11:57:45Z

* 'for-linus' of git://opensource.wolfsonmicro.com/regmap: (62 commits) mfd: Enable rbtree cache for wm831x devices regmap: Support some block operations on cached devices regmap: Allow caches for devices with no defaults regmap: Ensure rbtree syncs registers set to zero properly regmap: Allow rbtree to cache zero default values regmap: Warn on raw I/O as well as bulk reads that bypass cache regmap: Return a sensible error code if we fail to read the cache regmap: Use bsearch() to search the register defaults regmap: Fix doc comment regmap: Optimize the lookup path to use binary search regmap: Ensure we scream if we enable cache bypass/only at the same time regmap: Implement regcache_cache_bypass helper function regmap: Save/restore the bypass state upon syncing regmap: Lock the sync path, ensure we use the lockless _regmap_write() regmap: Fix apostrophe usage regmap: Make _regmap_write() global regmap: Fix lock used for regcache_cache_only() regmap: Grab the lock in regcache_cache_only() regmap: Modify map->cache_bypass directly regmap: Fix regcache_sync generic implementation ...

regmap: Remove redundant owner field from the bus type struct

2011-09-05T17:57:04Z

No longer used as users link directly with the bus types so the core module infrastructure does refcounting for us. Signed-off-by: Mark Brown

regmap: using module facilities requires module.h

2011-08-16T02:28:17Z

Commit b33f9cbd67ba ("regmap: Specify a module license") added a MODULES_LICENSE to this file without adding an include of module.h. module.h should have been included anyway, since this file has EXPORT_SYMBOLs as well. With the pending module.h split up, this would probably have caused build problems. Cc: Stephen Warren Cc: Mark Brown Signed-off-by: Stephen Rothwell Signed-off-by: Linus Torvalds