Re: Configuring the I2C clock on the ODROID C2

[Robert Swindells <rjs%fdy2.co.uk@localhost>]

Vincent DEFERT <vincent.defert%posteo.net@localhost> wrote:
>I'm testing my I2C driver for the ODROID C2 and it fails to get the I2C 
>peripheral clock.
>
>In meson-gxbb.dtsi, I have:
>
>     &i2c_A {
>         clocks = <&clkc CLKID_I2C>;
>     };
>
>and CLKID_I2C is defined as 22 in dt-bindings/clock/gxbb-clkc.h.
>No clock-name is defined for this clock in the DTS.

The various NetBSD arm clock drivers do not use the device tree to
work out how to enable clocks for a particular device.

You need to check in mesongxbb_clkc.c to see if the clock you need
has already got a definition, and if not add it.

The section on "Clock and Reset" in the S905 Datasheet looks detailed
enough to contain the information needed.

Also, the device tree definition may need to be extended, check whether
it defines a clocks property for the i2c_A device.