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From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jeremy Kerr <jk@ozlabs.org>, Joel Stanley <joel@jms.id.au>,
	Christopher Bostic <cbostic@linux.vnet.ibm.com>
Subject: [PATCH] dt-bindings: fsi-master-gpio: Document "no-gpio-delays" property
Date: Tue, 29 May 2018 11:43:40 +1000	[thread overview]
Message-ID: <1a2aaf52c2f4d948d55ccf3953db92528c296733.camel@kernel.crashing.org> (raw)
In-Reply-To: <20180529013044.23815-6-benh@kernel.crashing.org>

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>
---
 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:
 

       reply	other threads:[~2018-05-29  1:43 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20180529013044.23815-1-benh@kernel.crashing.org>
     [not found] ` <20180529013044.23815-6-benh@kernel.crashing.org>
2018-05-29  1:43   ` Benjamin Herrenschmidt [this message]
2018-05-31 17:13     ` [PATCH] dt-bindings: fsi-master-gpio: Document "no-gpio-delays" property Rob Herring

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