On Sun, Dec 15, 2019 at 04:39:05PM +0000, Russell King wrote: > The I2C specification states that tsu:sto for standard mode timing must > be at minimum 4us. Pictographically, this is: > > SCL: ____/~~~~~~~~~ > SDA: _________/~~~~ > ->| |<- 4us minimum > > We are currently waiting 2.5us between asserting SCL and SDA, which is > in violation of the standard. Adjust the timings to ensure that we meet > what is stipulated as the minimum timings to ensure that all devices > correctly interpret the STOP bus transition. > > This is more important than trying to generate a square wave with even > duty cycle. > > Signed-off-by: Russell King <rmk+kernel@xxxxxxxxxxxxxxx> Applied to for-current with the comment kept, thanks!
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