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| author | Geert Uytterhoeven <geert+renesas@linux-m68k.org> | 2014-02-20 15:43:04 +0100 |
|---|---|---|
| committer | Stephane Desneux <stephane.desneux@open.eurogiciel.org> | 2015-02-04 11:13:35 +0100 |
| commit | 892d362869d4f1b776b4afa196b17eba63be5ea7 (patch) | |
| tree | c641bb058896cee343317e4bb3d333c3d184995a /Documentation | |
| parent | 63d0cbb5e219c395511e350be6e6647881458204 (diff) | |
| download | linux-stable-892d362869d4f1b776b4afa196b17eba63be5ea7.tar.gz linux-stable-892d362869d4f1b776b4afa196b17eba63be5ea7.tar.bz2 linux-stable-892d362869d4f1b776b4afa196b17eba63be5ea7.zip | |
spi: sh-msiof: Use the core cs_gpio field, and make it optional
In current implementation, CS is controlled by GPIO, which is passed
through spi->controller_data. However, the MSIOF HW module has a function
to output CS by itself, which is already enabled and actual switch will be
done by pinmux.
Store the GPIO number in the core cs_gpio field, and ignore it if it is
an invalid (negative) GPIO number.
Loosely based on a patch from Takashi Yoshii <takasi-y@ops.dti.ne.jp>.
Signed-off-by: Geert Uytterhoeven <geert+renesas@linux-m68k.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
(cherry picked from commit 8d19534a8d539bb2e598e56e017a423f205e909e)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Diffstat (limited to 'Documentation')
0 files changed, 0 insertions, 0 deletions