Hi all
I'm looking the Linux Driver Model (LDM) and the PM issues.
I see the LDM is only "bus-oriented".
Is there an "official" reason why it doesn't track clock and voltage?
In a SOCs usually there is more than one clock therefore it could be
useful track not only the clock (as already done by the linux/clock.h)
but also the relationship between clock-and-device.
For this reason I'm working on a generic framework domain (to track
clocks and voltage with the same API) and the relationship between
domains and devices.
The basic idea is something like:
struct device_driver {
...
domain_ret_t (*domain_notifier)(struct domain_event * event, struct
device* dev);
};
struct device {
...
struct dev_dmn_info clk;
struct dev_dmn_info vltg;
};
And in the future it tries to have a dynamic power management with all
the info the system has on each device (bus_type, parent_device,
clock_parent, voltage_parent).
Do you think is it a good idea? (if no why?)
Did somebody do something like that? (if no why?)
Ciao
Francesco
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