[RFC 3/8] mfd:syscon: Introduce claim/read/write/release APIs
From: broonie@kernel.org (Mark Brown)
Date: 2013-05-08 15:01:48
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linux-devicetree, linux-serial, lkml
On Wed, May 08, 2013 at 04:50:22PM +0200, Arnd Bergmann wrote:
quoted
In many cases a single syconf register contains bits related to multiple devices, and therefore it need to be shared across multiple drivers at bit level. The same IP block can have different syscon mappings on different SOCs.
My feeling is that syscon is the wrong place for this functionality, since regmap already handles (some of?) these issues. If you need additional synchronization, it's probably best to extend regmap as needed so other code besides syscon can take advantage of that as well.
This sounds like regmap_update_bits() ought to be all that's needed. -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 836 bytes Desc: Digital signature URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20130508/7fc89de4/attachment.sig>