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| author | AceLan Kao <acelan.kao@canonical.com> | 2020-04-24 20:33:58 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2020-04-24 14:32:07 +0100 |
| commit | 82f25bd73c0bee4d29df47007a4f7290695b7db7 (patch) | |
| tree | d28348ca2fba0a759bcbbae0562ae54f63731f31 /kernel/gcov/gcc_base.c | |
| parent | 148c01d176237115d9c2805f6d29c0b6a72fbd10 (diff) | |
regmap-i2c: add 16-bit width registers support
This allows to access data with 16-bit width of registers
via i2c SMBus block functions.
The multi-command sequence of the reading function is not safe
and may read the wrong data from other address if other commands
are sent in-between the SMBus commands in the read function.
Read performance:
32768 bytes (33 kB, 32 KiB) copied, 11.4869 s, 2.9 kB/s
Write performance(with 1-byte page):
32768 bytes (33 kB, 32 KiB) copied, 129.591 s, 0.3 kB/s
The implementation is inspired by below commit
https://patchwork.ozlabs.org/patch/545292/
v2: add more descriptions about the issue that maybe introduced
by this commit
Signed-off-by: AceLan Kao <acelan.kao@canonical.com>
Link: https://lore.kernel.org/r/20200424123358.144850-1-acelan.kao@canonical.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'kernel/gcov/gcc_base.c')
0 files changed, 0 insertions, 0 deletions