tree 1ec2c857e02d1894ac3e98c0af129572c51e4dde
parent 04aa8694a3c4fbc9158551825deafb809b171592
author Philipp Tomsich <philipp.tomsich@theobroma-systems.com> 1505230256 +0200
committer Philipp Tomsich <philipp.tomsich@theobroma-systems.com> 1505760037 +0200

rockchip: clk: rk3399: add clk_enable function and support USB HOST0/1

The generic ehci-driver (ehci-generic.c) will try to enable the clocks
listed in the DTSI. If this fails (e.g. due to clk_enable not being
implemented in a driver and -ENOSYS being returned by the clk-uclass),
the driver will bail our and print an error message.

This implements a minimal clk_enable for the RK3399 and supports the
clocks mandatory for the EHCI controllers; as these are enabled by
default we simply return success.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>