tree 8e12e7e18b46dc81af91fb4092f61b3bde726f02
parent a14b9e0512404ed7d4415b888dc9f1f9785a4fa3
author Stephen Boyd <sboyd@codeaurora.org> 1454720572 -0800
committer Stephen Boyd <sboyd@codeaurora.org> 1461109918 -0700

clk: Add {devm_}clk_hw_{register,unregister}() APIs

We've largely split the clk consumer and provider APIs along
struct clk and struct clk_hw, but clk_register() still returns a
struct clk pointer for each struct clk_hw that's registered.
Eventually we'd like to only allocate struct clks when there's a
user, because struct clk is per-user now, so clk_register() needs
to change.

Let's add new APIs to register struct clk_hws, but this time
we'll hide the struct clk from the caller by returning an int
error code. Also add an unregistration API that takes the clk_hw
structure that was passed to the registration API. This way
provider drivers never have to deal with a struct clk pointer
unless they're using the clk consumer APIs.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>