On Thu, Sep 22, 2011 at 03:26:57PM -0700, Mike Turquette wrote:

From: Jeremy Kerr <redacted>

Implement clk_set_rate by adding a set_rate callback to clk_hw_ops.
Rates are propagated down the clock tree and recalculated.  Also adds a
flag for signaling that parents must change rates to achieve the desired
frequency (upstream propagation).

TODO:
Upstream propagation is not yet implemented.
Device pre-change and post-change notifications are not implemented, but
are marked up as FIXME comments.

Signed-off-by: Jeremy Kerr <redacted>
Signed-off-by: Mark Brown <redacted>
Signed-off-by: Mike Turquette <redacted>
---
Changes since v1:
Remove upstream propagation (for now)
Rename CLK_SET_RATE_PROPAGATE to CLK_PARENT_RATE_CHANGE

[...]

+ * @set_rate	Change the rate of this clock. If this callback returns
+ *		CLK_SET_RATE_PROPAGATE, the rate change will be propagated to

s/CLK_SET_RATE_PROPAGATE/CLK_PARENT_RATE_CHANGE, as suggested by your
change log above?

+ *		the parent clock (which may propagate again). The requested
+ *		rate of the parent is passed back from the callback in the
+ *		second 'unsigned long *' argument.
+ *

-- 
Regards,
Shawn