Re: [RFC 01/23] gpio/omap: raw read and write endian fix
From: Tony Lindgren
Date: Tue Nov 19 2013 - 10:44:06 EST
* Linus Walleij <linus.walleij@xxxxxxxxxx> [131119 01:29]:
> On Sat, Nov 16, 2013 at 1:01 AM, Taras Kondratiuk
> <taras.kondratiuk@xxxxxxxxxx> wrote:
>
> > From: Victor Kamensky <victor.kamensky@xxxxxxxxxx>
> >
> > All OMAP IP blocks expect LE data, but CPU may operate in BE mode.
> > Need to use endian neutral functions to read/write h/w registers.
> > I.e instead of __raw_read[lw] and __raw_write[lw] functions code
> > need to use read[lw]_relaxed and write[lw]_relaxed functions.
> > If the first simply reads/writes register, the second will byteswap
> > it if host operates in BE mode.
> >
> > Changes are trivial sed like replacement of __raw_xxx functions
> > with xxx_relaxed variant.
> >
> > Signed-off-by: Victor Kamensky <victor.kamensky@xxxxxxxxxx>
> > Signed-off-by: Taras Kondratiuk <taras.kondratiuk@xxxxxxxxxx>
>
> Since I generally just dislike __raw accessors I went and applied
> this. If it collides with any of Tony's fixup work I might need to
> take the patch out again, no big deal.
Thanks, this should not conflict with what I have. I just had few
fixes for the twl4030-gpio for older omaps and I doubt that I have
further driver dependencies beyond that for my clean-up work.
> Some ACKs would be nice, but unless there are major objections
> this stays merged.
Acked-by: Tony Lindgren <tony@xxxxxxxxxxx>
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/