On 07/08/2018 11:04 PM, Benjamin Herrenschmidt wrote:
Another option would be to handle it through regmap; That nowadays
supports custom accesses implemented in the parent driver (see regmap_read
and regmap_write in struct regmap_config). The child driver gets the
regmap pointer and uses the regmap API. I don't see that as messy.
That works for purely MMIO based things, this isn't though.
Sorry, I meant reg_read and reg_write callbacks in struct regmap_config.
I don't think those callbacks are limited to mmio; I find many other
access types by browsing through code providing those callbacks.
Sure, one could consider regmap to be another bloat, but I find it to
be a quite convenient abstraction layer.
Guenter
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