linux/drivers/base/regmap/regmap.c, branch v4.8

regmap: fix deadlock on _regmap_raw_write() error path

2016-09-22T10:24:22Z

Commit 815806e39bf6 ("regmap: drop cache if the bus transfer error") added a call to regcache_drop_region() to error path in _regmap_raw_write(). However that path runs with regmap lock taken, and regcache_drop_region() tries to re-take it, causing a deadlock. Fix that by calling map->cache_ops->drop() directly. Signed-off-by: Nikita Yushchenko Signed-off-by: Mark Brown

regmap: drop cache if the bus transfer error

2016-08-18T10:09:12Z

regmap_write ->_regmap_raw_write -->regcache_write first and than use map->bus->write to wirte i2c or spi But if the i2c or spi transfer failed, But the cache is updated, So if I use regmap_read will get the cache data which is not the real register value. Signed-off-by: Elaine Zhang Signed-off-by: Mark Brown

regmap: Support bulk writes for devices without raw formatting

2016-06-29T18:48:00Z

When doing a bulk writes 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. This complements commit d5b98eb12420 ("regmap: Support bulk reads for devices without raw formatting"). Signed-off-by: Chen-Yu Tsai Signed-off-by: Mark Brown

Merge remote-tracking branch 'regmap/topic/update-bits' into regmap-next

2016-03-05T12:30:41Z

Merge remote-tracking branches 'regmap/topic/devm-irq', 'regmap/topic/doc', 'regmap/topic/irq' and 'regmap/topic/stride' into regmap-next

2016-03-05T12:30:32Z

regmap: replace regmap_write_bits()

2016-03-05T03:54:36Z

commit 23b92e4cf5fd ("regmap: remove regmap_write_bits()") removed regmap_write_bits(), but MFD driver was using it. So, commit e30fccd6771d ("regmap: Keep regmap_write_bits()") turns out it, but it is using original style. This patch uses regmap_update_bits_base() for regmap_write_bits() Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown

regmap: add regmap_fields_force_xxx() macros

2016-02-26T02:44:00Z

Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown

regmap: merge regmap_fields_update_bits() into macro

2016-02-19T16:15:56Z

This patch merges regmap_fields_update_bits() into macro by using regmap_field_update_bits_base(). Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown

regmap: merge regmap_fields_write() into macro

2016-02-19T16:15:56Z

This patch merges regmap_fields_write() into macro by using regmap_fields_update_bits_base(). Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown

regmap: add regmap_fields_update_bits_base()

2016-02-19T16:15:56Z

This patch adds new regmap_fields_update_bits_base() which is using regmap_update_bits_base(). Current regmap_fields_xxx() can be merged into it by macro. Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown