diff options
| author | James Hogan <james.hogan@imgtec.com> | 2013-07-29 15:25:02 +0400 |
|---|---|---|
| committer | Mike Turquette <mturquette@linaro.org> | 2013-08-19 23:27:18 +0400 |
| commit | e366fdd72529c545ccf327569ee250c1673be221 (patch) | |
| tree | 69139adc59e6ab101555f09544669793c385c250 /include/linux/clk-provider.h | |
| parent | 819c1de344c5b8350bffd35be9a0fa74541292d3 (diff) | |
| download | linux-e366fdd72529c545ccf327569ee250c1673be221.tar.xz | |
clk: clk-mux: implement remuxing on set_rate
Implement clk-mux remuxing if the CLK_SET_RATE_NO_REPARENT flag isn't
set. This implements determine_rate for clk-mux to propagate to each
parent and to choose the best one (like clk-divider this chooses the
parent which provides the fastest rate <= the requested rate).
The determine_rate op is implemented as a core helper function so that
it can be easily used by more complex clocks which incorporate muxes.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Cc: Mike Turquette <mturquette@linaro.org>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Diffstat (limited to 'include/linux/clk-provider.h')
| -rw-r--r-- | include/linux/clk-provider.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h index 5c0bc3904c9b..1f0285b2f422 100644 --- a/include/linux/clk-provider.h +++ b/include/linux/clk-provider.h @@ -436,6 +436,9 @@ unsigned long __clk_get_flags(struct clk *clk); bool __clk_is_prepared(struct clk *clk); bool __clk_is_enabled(struct clk *clk); struct clk *__clk_lookup(const char *name); +long __clk_mux_determine_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *best_parent_rate, + struct clk **best_parent_p); /* * FIXME clock api without lock protection |