Re: [PATCH] gpio: Add generic driver for simple memory mapped controllers

[Alan Cox <alan@lxorguk.ukuu.org.uk>]

O> If there are "zillions" that suggests the HW
> engineers have version/naming issues just like
> certain software engineers.  Only goes to show
> how close Verilog and VHDL are to software! :)

Verilog ? Its far far more primitive than that. You'll find exactly that
arrangement in prehistoric 8bit micro support chips - eg the 6522. In
fact the only reason I can see for not using it on primitive 8bit micro
devices is that they *already* had more features.

> are not reusing a named module; they are at best
> just copying/pasting some Verilog/VHDL and adding
> ASIC/SoC/.../FPGA-specific hacks.  (Which calls into
> question just how much assurance there can be that
> one driver will work reliably for all instances...

No they are implementing trivial common sense logic. It's a bit like
complaining we have multiple drivers that use addition.

I think you need a reality check. Its a VLSI undergraduate project level
device, or was back when they taught undergraduates a sampling of chip
design by drawing the transistors. This is "my first logic design" stuff.

Alan