i2c: uniphier: fix violation of tLOW requirement for Fast-mode
[ Upstream commit 8469636ab5d8c77645b953746c10fda6983a8830 ] 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: NMasahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: NWolfram Sang <wsa@the-dreams.de> Signed-off-by: NSasha Levin <sashal@kernel.org>
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