Since commit ba1f966725 ("net: designware: add clock support"), the
designware GMAC driver enables all referenced clocks. While this is a
no-op for the RK3399 during boot-up (reset behaviour has all the clock
gates open anyway), we still need to handle the clock-ids passed in
the enable op of the clock-driver and return a success.
This change extends the enable-op of the rk3399 clk driver to signal
success to the caller when the clocks for the GMAC are enabled.
References: commit ba1f966725 ("net: designware: add clock support")
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Tested-by: Klaus Goger <klaus.goger@theobroma-systems.com>
a9bdd67653