[PATCH V5 1/3] OPP: Redefine bindings to overcome shortcomings
From: Rob Herring <hidden>
Date: 2015-05-22 15:55:34
Also in:
linux-devicetree, linux-pm
On Thu, May 21, 2015 at 12:46 AM, Viresh Kumar [off-list ref] wrote:
On 21-05-15, 00:27, Nishanth Menon wrote:quoted
quoted
+This describes the OPPs belonging to a device. This node can have following +properties:
[...]
quoted
different angle: How about just target-freq-Hz? just drop the "opp" prefix for properties of an OPP node? No strong feelings here. (some folks did have variations of a few Hz based on clock tree - example with a crystal frequency of 19.2MHz you'd probably get 1001MHz exact, with a 26MHz crystal, you'd get 1000MHz -> ofcourse round-rate is supposed to help with that... but anyways.. why not say we are trying to indicate target frequency? I do recollect during initial days of OPP (pre-dt-adoption days) folks did complain about this - we kinda worked around this with round-rated handling - but we might as well anticipate it.Rob suggested opp- prefix and it looks good to me, lets see what others have to say :)
You can decide the color of the bike shed.
quoted
Thanks for adding the examples - My customer support team especially will appreciate having such examples ;).I can understand that :)quoted
I agree with Mike[1] here -> why not move clocks and supply to cpu0_opp? " It seems wrong to me that the clock and supply data is owned by the cpu node, and not the opp descriptor. Everything about the opp transition should belong to a provider node. Then the cpu simply needs to consume that via a phandle. " I am not sure if we discussed that point further OR if we kinda got hooked on to the "should it be in kernel" point of debate in V4.I did send a reply to that, but no one replied after that. Probably you want to reply on that ?
Clock and regulator bindings describe connections in the h/w. OPPs are not a h/w block, but rather properties of the h/w. The connections here are to the cpu's. Rob