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author | Stephen Boyd <sboyd@codeaurora.org> | 2014-09-05 15:47:25 -0700 |
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committer | Srinivas Kandagatla <srinivas.kandagatla@linaro.org> | 2015-01-28 16:12:21 +0000 |
commit | 131786712485adf885688b1c7ee0abde0e4d1f02 (patch) | |
tree | 515789ea3e02dbb7caa35976d5be43baa3ac1557 /Documentation | |
parent | b7652934d95003249a6d7e0470c361adabdcacf9 (diff) |
clk: Add safe switch hook
Sometimes clocks can't accept their parent source turning off
while the source is reprogrammed to a different rate. Most
notably some CPU clocks require a way to switch away from the
current PLL they're running on, reprogram that PLL to a new rate,
and then switch back to the PLL with the new rate once they're
done. Add a hook that drivers can implement allowing them to
return a 'safe parent' that they can switch their parent to while
the upstream source is reprogrammed.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Diffstat (limited to 'Documentation')
0 files changed, 0 insertions, 0 deletions