From: Boris BREZILLON <boris.brezillon@free-electrons.com>
Date: Mon, 22 Sep 2014 19:37:55 +0000 (+0200)
Subject: mfd: Inherit coherent_dma_mask from parent device
X-Git-Tag: fixes-against-v3.18-rc2~69^2~12
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4f08df1b06bb4022fab5a2a916f455915856ed9e;p=pandora-kernel.git

mfd: Inherit coherent_dma_mask from parent device

dma_mask and dma_parms are already inherited from the parent device but
dma_coherent_mask was left uninitialized (set to zero thanks to kzalloc).
Set sub-device coherent_dma_mask to its parent value to simplify
sub-drivers making use of dma coherent helper functions (those drivers
currently have to explicitly set the dma coherent mask using
dma_set_coherent_mask function).

Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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