android_kernel_oneplus_msm8998/drivers/base/regmap
Srinivas Kandagatla dd53d35661 regmap: fix bulk writes on paged registers
[ Upstream commit db057679de3e9e6a03c1bcd5aee09b0d25fd9f5b ]

On buses like SlimBus and SoundWire which does not support
gather_writes yet in regmap, A bulk write on paged register
would be silently ignored after programming page.
This is because local variable 'ret' value in regmap_raw_write_impl()
gets reset to 0 once page register is written successfully and the
code below checks for 'ret' value to be -ENOTSUPP before linearising
the write buffer to send to bus->write().

Fix this by resetting the 'ret' value to -ENOTSUPP in cases where
gather_writes() is not supported or single register write is
not possible.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-08-04 09:34:46 +02:00
..
internal.h driver core update for 4.4-rc1 2015-11-04 21:50:37 -08:00
Kconfig regmap: ac97: Add generic AC'97 callbacks 2014-11-19 10:28:14 +00:00
Makefile regmap: Move tracing header into drivers/base/regmap 2015-03-19 22:22:45 +00:00
regcache-flat.c regmap: cache: Sort include headers alphabetically 2014-10-20 12:25:06 +01:00
regcache-lzo.c debugfs: Pass bool pointer to debugfs_create_bool() 2015-10-04 11:36:07 +01:00
regcache-rbtree.c regmap: regcache-rbtree: Clean new present bits on present bitmap resize 2015-07-29 15:10:13 +01:00
regcache.c debugfs: Pass bool pointer to debugfs_create_bool() 2015-10-04 11:36:07 +01:00
regmap-ac97.c regmap: Move documentation to regmap.h 2015-08-11 17:21:44 +01:00
regmap-debugfs.c regmap: debugfs: simplify regmap_reg_ranges_read_file() slightly 2015-09-30 20:31:16 +01:00
regmap-i2c.c Merge remote-tracking branches 'regmap/topic/lockdep' and 'regmap/topic/seq-delay' into regmap-next 2015-09-04 17:22:10 +01:00
regmap-irq.c regmap: irq: add ack_invert flag for chips using cleared bits as ack 2015-09-17 11:46:10 +01:00
regmap-mmio.c regmap: Move documentation to regmap.h 2015-08-11 17:21:44 +01:00
regmap-spi.c regmap: Move documentation to regmap.h 2015-08-11 17:21:44 +01:00
regmap-spmi.c regmap: spmi: Fix regmap_spmi_ext_read in multi-byte case 2016-05-18 17:06:48 -07:00
regmap.c regmap: fix bulk writes on paged registers 2019-08-04 09:34:46 +02:00
trace.h regmap: Move tracing header into drivers/base/regmap 2015-03-19 22:22:45 +00:00