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Date: Tue, 29 May 2018 11:43:40 +1000
From: Benjamin Herrenschmidt <benh@...nel.crashing.org>
To: linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Jeremy Kerr <jk@...abs.org>, Joel Stanley <joel@....id.au>,
Christopher Bostic <cbostic@...ux.vnet.ibm.com>
Subject: [PATCH] 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@...nel.crashing.org>
---
Documentation/devicetree/bindings/fsi/fsi-master-gpio.txt | 4 ++++
1 file changed, 4 insertions(+)
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:
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