linux-gpio.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Liu Gang <Gang.Liu@freescale.com>
To: robh+dt@kernel.org, linus.walleij@linaro.org, arnd@arndb.de,
	shawnguo@kernel.org
Cc: bhupesh.sharma@freescale.com, devicetree@vger.kernel.org,
	linux-gpio@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	b07421@freescale.com, R58472@freescale.com,
	Gang.Liu@freescale.com
Subject: [PATCH 1/2] ls2080a/dts: Add little endian property for GPIO IP block
Date: Wed, 4 Nov 2015 14:48:23 +0800	[thread overview]
Message-ID: <1446619704-27669-1-git-send-email-Gang.Liu@freescale.com> (raw)

The GPIO block for ls2080a platform has little endian registers,
the GPIO driver needs this property to read/write registers by
right interface.

Signed-off-by: Liu Gang <Gang.Liu@freescale.com>

diff --git a/Documentation/devicetree/bindings/gpio/gpio-mpc8xxx.txt b/Documentation/devicetree/bindings/gpio/gpio-mpc8xxx.txt
index f2455c5..c836dab 100644
--- a/Documentation/devicetree/bindings/gpio/gpio-mpc8xxx.txt
+++ b/Documentation/devicetree/bindings/gpio/gpio-mpc8xxx.txt
@@ -10,6 +10,9 @@ Required properties:
   the second cell is used to specify the gpio polarity:
       0 = active high
       1 = active low
+- little-endian : Should be set if the GPIO has little endian
+		  registers. No the property means the GPIO
+		  registers are big endian mode.
 
 Example:
 
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi
index f3c59f9..41bb8c1 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi
@@ -277,6 +277,7 @@
 			reg = <0x0 0x2300000 0x0 0x10000>;
 			interrupts = <0 36 0x4>; /* Level high type */
 			gpio-controller;
+			little-endian;
 			#gpio-cells = <2>;
 			interrupt-controller;
 			#interrupt-cells = <2>;
@@ -287,6 +288,7 @@
 			reg = <0x0 0x2310000 0x0 0x10000>;
 			interrupts = <0 36 0x4>; /* Level high type */
 			gpio-controller;
+			little-endian;
 			#gpio-cells = <2>;
 			interrupt-controller;
 			#interrupt-cells = <2>;
@@ -297,6 +299,7 @@
 			reg = <0x0 0x2320000 0x0 0x10000>;
 			interrupts = <0 37 0x4>; /* Level high type */
 			gpio-controller;
+			little-endian;
 			#gpio-cells = <2>;
 			interrupt-controller;
 			#interrupt-cells = <2>;
@@ -307,6 +310,7 @@
 			reg = <0x0 0x2330000 0x0 0x10000>;
 			interrupts = <0 37 0x4>; /* Level high type */
 			gpio-controller;
+			little-endian;
 			#gpio-cells = <2>;
 			interrupt-controller;
 			#interrupt-cells = <2>;
-- 
2.1.0.27.g96db324


             reply	other threads:[~2015-11-04  6:55 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-11-04  6:48 Liu Gang [this message]
2015-11-04  6:48 ` [PATCH 2/2] drivers/gpio: Port gpio driver to layerscape platform Liu Gang
2015-11-04  8:53   ` Arnd Bergmann
2015-11-04  9:17     ` Scott Wood
2015-11-04 10:09       ` Arnd Bergmann
2015-11-05 13:27 ` [PATCH 1/2] ls2080a/dts: Add little endian property for GPIO IP block Rob Herring
2015-11-24  6:57 ` Shawn Guo
     [not found] <1446549552-40675-1-git-send-email-Gang.Liu@freescale.com>
2015-11-16 15:11 ` Linus Walleij
2015-11-16 18:56   ` Li Yang
     [not found]     ` <CADRPPNROHmnOHfpAtaii5Hr3hzUmn4BL5OpQ4Q4hr9BGLq8s0Q-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-11-16 19:12       ` Scott Wood
2015-11-17 14:36     ` Linus Walleij

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1446619704-27669-1-git-send-email-Gang.Liu@freescale.com \
    --to=gang.liu@freescale.com \
    --cc=R58472@freescale.com \
    --cc=arnd@arndb.de \
    --cc=b07421@freescale.com \
    --cc=bhupesh.sharma@freescale.com \
    --cc=devicetree@vger.kernel.org \
    --cc=linus.walleij@linaro.org \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-gpio@vger.kernel.org \
    --cc=robh+dt@kernel.org \
    --cc=shawnguo@kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).