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| author | Sifan Naeem <sifan.naeem@imgtec.com> | 2015-06-18 15:27:12 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2015-07-07 14:56:36 +0300 |
| commit | 93e3a9e9993ef018522b7005d97d8124b7e73385 (patch) | |
| tree | 49d514d05357faffd6c64e54757e59da536d06d3 /Documentation | |
| parent | d770e558e21961ad6cfdf0ff7df0eb5d7d4f0754 (diff) | |
| download | linux-93e3a9e9993ef018522b7005d97d8124b7e73385.tar.xz | |
spi: img-spfi: check for max speed supported by the spfi block
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>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/spi/spi-img-spfi.txt | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/spi/spi-img-spfi.txt b/Documentation/devicetree/bindings/spi/spi-img-spfi.txt index e02fbf18c82c..494db6012d02 100644 --- a/Documentation/devicetree/bindings/spi/spi-img-spfi.txt +++ b/Documentation/devicetree/bindings/spi/spi-img-spfi.txt @@ -21,6 +21,7 @@ Required properties: Optional properties: - img,supports-quad-mode: Should be set if the interface supports quad mode SPI transfers. +- spfi-max-frequency: Maximum speed supported by the spfi block. Example: |