Markus Pargmann 9a16ea900f regmap: regmap_raw_read return error on !bus->read
Return -ENOTSUPP if map->bus->read is not implemented and we do not use
the cache. This code path would directly use bus->read would run into an
NULL pointer for the read function.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-08-20 11:29:38 -07:00
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