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<p class="MsoNormal">Hello,<br>
<br>
I am writing a driver for a frequency synthesizer that does not currently have any support in the kernel. This synthesizer is clocked by a fixed external oscillator.<o:p></o:p></p>
<p class="MsoNormal"><br>
In my driver, I:<o:p></o:p></p>
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Register the clock hardware with devm_clk_hw_register<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:-15.75pt;mso-list:l0 level1 lfo1">
Describe the clocks to the DTS nodes with devm_of_clk_add_hw_provider<br>
<br>
<o:p></o:p></li></ol>
<p class="MsoNormal">Various external stimuli and commands (through IIO) can change the frequency of this synthesizer.<br>
How do I notify downstream devices that the frequency has changed? Ultimately it looks like __clk_notify() is what I want to call, but that is a non-exported function. Tracking it through, the function stack that calls this looks like it is used to request
a new frequency, not to notify consumers that the frequency has changed.<br>
<br>
Does anyone have any tips, or perhaps know of an in-tree driver I could study to understand this better?<br>
<br>
Thanks.<o:p></o:p></p>
<p class="MsoNormal">-Sam<o:p></o:p></p>
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