spi: mediatek: single device does not require cs_gpios

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When only one device is present, it is not necessary to specify
cs_gpios, as the CS line can be controlled by the hardware
module.

Without this patch, older device tree bindings used before
37457607 "spi: mediatek: mt8173 spi multiple devices support"
would cause a panic on boot. This fixes the crash, and
re-introduces backward compatibility.

Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
Acked-by: Leilk Liu <leilk.liu@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

...

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Nicolas Boichat 2015-11-09 12:14:51 +08:00 • committed by Mark Brown

parent 8005c49d9a

commit 98c8dccf2b

1 changed files with 18 additions and 8 deletions

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26

drivers/spi/spi-mt65xx.c

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