Re: [PATCH] arm64: dts: renesas: beacon: Fix i2c2 speed calcuation

On Wed, Aug 25, 2021 at 02:47:21PM +0200, Geert Uytterhoeven wrote:

CC Wolfram

On Wed, Aug 25, 2021 at 2:28 PM Adam Ford [off-list ref] wrote:

quoted

The desired i2c2 speed is 400KHz, but when measured on a scope, it
is incorrect.  The driver can use the i2c-scl-rising-time-ns to help
calculate the proper setting to get exactly 400KHz.

The question for me is: Has it been measured that SCL rising time is
really 50ns or has it been measured that the bus clock is now exactly
400kHz?