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| author | Masahiro Yamada <yamada.masahiro@socionext.com> | 2018-12-06 12:55:27 +0900 |
|---|---|---|
| committer | Wolfram Sang <wsa@the-dreams.de> | 2018-12-06 23:14:59 +0100 |
| commit | 8469636ab5d8c77645b953746c10fda6983a8830 (patch) | |
| tree | bb912f98a8108830ea93d2c7949a4ed1e7518194 /drivers/i2c/busses/i2c-uniphier-f.c | |
| parent | cd8843f541cc0ef057e27f1afba46374bbb84219 (diff) | |
| download | linux-8469636ab5d8c77645b953746c10fda6983a8830.tar.bz2 | |
i2c: uniphier: fix violation of tLOW requirement for Fast-mode
Currently, the clock duty is set as tLOW/tHIGH = 1/1. For Fast-mode,
tLOW is set to 1.25 us while the I2C spec requires tLOW >= 1.3 us.
tLOW/tHIGH = 5/4 would meet both Standard-mode and Fast-mode:
Standard-mode: tLOW = 5.56 us, tHIGH = 4.44 us
Fast-mode: tLOW = 1.39 us, tHIGH = 1.11 us
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Diffstat (limited to 'drivers/i2c/busses/i2c-uniphier-f.c')
0 files changed, 0 insertions, 0 deletions