Re: [PATCH 1/2] [IDE] Platform IDE driver

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



This doesn't mean that shift is better anyway. If everyone considers it better, I give up. But be warned that shift (stride) is not the only property characterizing register accesses -- the regs might be only accessible as 16/32-bit quantities, for example (16-bit is a real world example -- from
Amiga or smth of that sort, IIRC).

More importantly, "reg-shift" doesn't say what part of
the bigger words to access.  A common example is byte-wide
registers on a 32-bit-only bus; it's about 50%-50% between
connecting the registers to the low byte vs. connecting it
to the byte with the lowest address.

The only realistic way to handle all this is to put some
knowledge into the device driver.  This does of course
also mean that no "reg-shift" property is needed; the
device driver can look at your "compatible" property,
instead.

   Why the heck should we care about the UART code taling about IDE?!

Consistency?

We're not obliged to be consistent with every piece of the kernel code.

It would be nice to not name similar properties in the
device tree dissimilarly.  Kernel code doesn't come into
the picture here.


Segher

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Stuff]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]     [Linux Resources]
  Powered by Linux