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Groups > linux.kernel > #1206027
| From | Markus Pargmann <mpa@pengutronix.de> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH 12/20] regmap: Introduce max_raw_io for regmap_bulk_read/write |
| Date | 2015-08-12 14:40 +0200 |
| Message-ID | <pWDu3-4ta-35@gated-at.bofh.it> (permalink) |
| References | <pWBix-1oV-9@gated-at.bofh.it> <pWBiy-1oV-19@gated-at.bofh.it> <pWCHE-3ic-11@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
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On Wed, Aug 12, 2015 at 12:49:31PM +0100, Mark Brown wrote:
> On Wed, Aug 12, 2015 at 12:12:37PM +0200, Markus Pargmann wrote:
>
> > + /* if set, raw reads/writes are limited to this size */
> > + size_t max_raw_io;
> > +
>
> Do this separately for read and write, there's doubtless going to be
> something that has asymmetry.
Okay.
>
> > + if (!map->use_single_rw) {
> > + write_count = total_bytes / map->max_raw_io;
> > + write_bytes = map->max_raw_io;
>
> We may not be able to fit a whole number of values into whatever the
> constraint that the bus has is and partial values don't seem like a good
> idea.
Oh right. Will change the calculation so that there are no partial
values being written.
>
> > + reg_stride *= write_bytes / val_bytes;
> > + }
>
> This is very confusing, regmap already has a concept of stride and this
> isn't the same thing.
Okay, will rename it.
Thanks,
Markus
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[PATCH 12/20] regmap: Introduce max_raw_io for regmap_bulk_read/write Markus Pargmann <mpa@pengutronix.de> - 2015-08-12 12:20 +0200
Re: [PATCH 12/20] regmap: Introduce max_raw_io for regmap_bulk_read/write Mark Brown <broonie@kernel.org> - 2015-08-12 13:50 +0200
Re: [PATCH 12/20] regmap: Introduce max_raw_io for regmap_bulk_read/write Markus Pargmann <mpa@pengutronix.de> - 2015-08-12 14:40 +0200
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