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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2018-05-29 04:43:40 +0300
committerRob Herring <robh@kernel.org>2018-05-31 20:12:38 +0300
commitb4fb3aa5b9301a089b98f89a319fd9272fcc93e8 (patch)
treeb1cd8a1648d551030759b85dbe6b6489c50ef8b0 /Documentation/devicetree/bindings/fsi
parent399d9e0695775e17a6f100bd5f89a1ec6466e6a1 (diff)
downloadlinux-b4fb3aa5b9301a089b98f89a319fd9272fcc93e8.tar.xz
dt-bindings: fsi-master-gpio: Document "no-gpio-delays" property
Support for this is being added to the driver but the original patch forgot to add this documentation. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Rob Herring <robh@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/fsi')
-rw-r--r--Documentation/devicetree/bindings/fsi/fsi-master-gpio.txt4
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/fsi/fsi-master-gpio.txt b/Documentation/devicetree/bindings/fsi/fsi-master-gpio.txt
index a767259dedad..1e442450747f 100644
--- a/Documentation/devicetree/bindings/fsi/fsi-master-gpio.txt
+++ b/Documentation/devicetree/bindings/fsi/fsi-master-gpio.txt
@@ -11,6 +11,10 @@ Optional properties:
- trans-gpios = <gpio-descriptor>; : GPIO for voltage translator enable
- mux-gpios = <gpio-descriptor>; : GPIO for pin multiplexing with other
functions (eg, external FSI masters)
+ - no-gpio-delays; : Don't add extra delays between GPIO
+ accesses. This is useful when the HW
+ GPIO block is running at a low enough
+ frequency.
Examples: