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(parent: ffa69d6) | patch
spi: sh-msiof: Fix handling of write value for SISTR register
authorHiromitsu Yamasaki <hiromitsu.yamasaki.ym@renesas.com>
Wed, 5 Sep 2018 08:49:37 +0000 (10:49 +0200)
committerMark Brown <broonie@kernel.org>
Wed, 5 Sep 2018 11:39:57 +0000 (12:39 +0100)
commit31a5fae4c5a009898da6d177901d5328051641ff
treed080addcb71d9096e1d8d808278d685f0c109ddatree | snapshot
parentffa69d6a16f686efe45269342474e421f2aa58b2commit | diff
spi: sh-msiof: Fix handling of write value for SISTR register

This patch changes writing to the SISTR register according to the H/W
user's manual.

The TDREQ bit and RDREQ bits of SISTR are read-only, and must be written
their initial values of zero.

Signed-off-by: Hiromitsu Yamasaki <hiromitsu.yamasaki.ym@renesas.com>
[geert: reword]
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
drivers/spi/spi-sh-msiof.c diff | blob | history
ep93xx device tree rework repo: git://git.maquefel.me/linux.git