spi: img-spfi: check for max speed supported by the spfi block

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Maximum speed supported by spfi is limited to 1/4 of the spfi clock.

But in some SoCs the maximum speed supported by the spfi block can
be limited to less than 1/4 of the spfi clock. In such cases we have
to define the limit in the device tree so that the driver can pick
it up.

Signed-off-by: Sifan Naeem <sifan.naeem@imgtec.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

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Sifan Naeem 2015-06-18 13:27:12 +01:00 • committed by Mark Brown

parent d770e558e2

commit 93e3a9e999

2 changed files with 15 additions and 0 deletions

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1

Documentation/devicetree/bindings/spi/spi-img-spfi.txt

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14

drivers/spi/spi-img-spfi.c

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