tree 1cb7fbe26eac81fab7f3d4a35278f5480fb777c7
parent ec8f1c02dd0c2e8b7302072b3956a9c56139a139
author Lukasz Majewski <lukma@denx.de> 1561384238 +0200
committer Stefano Babic <sbabic@denx.de> 1563540630 +0200

clk: Extend struct clk to provide information regarding clock rate

This commit extends the struct clk to provide information regarding the
clock rate.
As a result the clock tree traversal is performed at most once, and further
reads are using the cached value.

Signed-off-by: Lukasz Majewski <lukma@denx.de>