From 9c9f7f675970ba1b888272f016157de21f69e7e2 Mon Sep 17 00:00:00 2001
From: Markus Pargmann <mpa@pengutronix.de>
Date: Fri, 21 Aug 2015 10:26:43 +0200
Subject: [PATCH] regmap: No multi_write support if bus->write does not exist

There is no multi_write support available if we cannot use raw_write.
This is the case if bus->write is not implemented.

This patch adds a condition that we need bus and bus->write so that
can_multi_write is true.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
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