linux/drivers/base/regmap/regmap.c, branch v4.3

Merge remote-tracking branches 'regmap/topic/lockdep' and 'regmap/topic/seq-delay' into regmap-next

2015-09-04T16:22:10Z

Merge remote-tracking branches 'regmap/topic/debugfs' and 'regmap/topic/force-update' into regmap-next

2015-09-04T16:22:09Z

Merge remote-tracking branch 'regmap/topic/core' into regmap-next

2015-09-04T16:22:08Z

Merge remote-tracking branch 'regmap/fix/raw' into regmap-linus

2015-09-04T16:22:07Z

Merge branch 'topic/smbus-block' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap into regmap-core

2015-09-04T16:16:39Z

regmap: fix a NULL pointer dereference in __regmap_init

2015-08-31T10:38:36Z

__regmap_init() may receive a NULL `struct regmap_bus *bus' pointer, for example, from snd_hdac_regmap_init(), and it make sure that it does not NULL deference `bus`, except around ->max_raw_read and ->max_raw_write initialisation. Add missing check. Signed-off-by: Sergey Senozhatsky Signed-off-by: Mark Brown

regmap: Support bulk reads for devices without raw formatting

2015-08-31T10:15:07Z

When doing a bulk read from a device which lacks raw I/O support we fall back to doing register at a time reads but we still use the raw formatters in order to render the data into the word size used by the device (since bulk reads still operate on the device word size rather than unsigned ints). This means that devices without raw formatting such as those that provide reg_read() are not supported. Provide handling for them by copying the values read into native endian values of the appropriate size. Signed-off-by: Mark Brown

regmap: Add raw_write/read checks for max_raw_write/read sizes

2015-08-30T09:19:22Z

Check in regmap_raw_read() and regmap_raw_write() for correct maximum sizes of the operations. Return -E2BIG if this size is not supported because it is too big. Also this patch causes an uninitialized variable warning so it initializes ret (although not necessary). Signed-off-by: Markus Pargmann Signed-off-by: Mark Brown

regmap: regmap max_raw_read/write getter functions

2015-08-30T09:19:22Z

Add functions to access the maximum size we can read/write using regmap_raw_read/write(). This helps drivers that need to know how much they can write with the raw functions without problems. There are some devices (e.g. bmc150) that have fifos as registers which need to be read in specific chunks otherwise samples are dropped. Signed-off-by: Markus Pargmann Signed-off-by: Mark Brown

regmap: Introduce max_raw_read/write for regmap_bulk_read/write

2015-08-30T09:19:22Z

There are some buses which have a limit on the maximum number of bytes that can be send/received. An example for this is I2C_FUNC_SMBUS_I2C_BLOCK which does not support any reads/writes of more than 32 bytes. The regmap_bulk operations should still be able to utilize the full 32 bytes in this case. Signed-off-by: Markus Pargmann Signed-off-by: Mark Brown