The syscon block is a general subsystem control block, and it is not
specifically only for controlling reset and enabling clocks (other
functions include serdes control, for example). It is also shared
with other peripherals.
So we can remove the ctrl-reg property (since it is not part of the
SAS controller), and add the relevant syscon register offsets to the
"hisilicon,sas-syscon" property, like this:
hisilicon,sas-syscon = <&sas_ctrl0 0xa60 0x33c 0x5a30 0xa64 0x338>;
Ok?
It would be better to have each offset in a separate property.
These register are not used for different purpose.
Instead, they are all used for one purpose, reset the sas controller;
Though a bit complicated, the silicon has special requirement here.
So still prefer using the original method,
ctrl-reg = <0xa60 0x33c 0x5a30 0xa64 0x338>;
Since we can simply use of_property_read_u32_array.
We can actually remove the deassert and clock enable properties as they
are always at a fixed offset from their respective assert/clk disable
partner register.
Thanks
.
thanks,
John
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