From: vigneshr@ti.com (Vignesh R)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 2/2] ARM: dts: am335x-icev2: Add nodes for gpio-decoder
Date: Fri, 12 Aug 2016 10:22:29 +0530 [thread overview]
Message-ID: <20160812045229.29241-3-vigneshr@ti.com> (raw)
In-Reply-To: <20160812045229.29241-1-vigneshr@ti.com>
AM335x ICE board has a rotary-switch connected to PCA9536 I2C GPIO
expander. The position of the rotary-switch is reflected by status of
GPIO lines. Add gpio-decoder node to read these GPIO line status via
gpio-decoder driver and report it as an input event to the system.
Signed-off-by: Vignesh R <vigneshr@ti.com>
---
arch/arm/boot/dts/am335x-icev2.dts | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/arch/arm/boot/dts/am335x-icev2.dts b/arch/arm/boot/dts/am335x-icev2.dts
index 7d8b8fefdf08..f2de594343f2 100644
--- a/arch/arm/boot/dts/am335x-icev2.dts
+++ b/arch/arm/boot/dts/am335x-icev2.dts
@@ -139,6 +139,15 @@
default-state = "off";
};
};
+ gpio-decoder0 {
+ compatible = "gpio-decoder";
+ gpios = <&pca9536 3 GPIO_ACTIVE_HIGH>,
+ <&pca9536 2 GPIO_ACTIVE_HIGH>,
+ <&pca9536 1 GPIO_ACTIVE_HIGH>,
+ <&pca9536 0 GPIO_ACTIVE_HIGH>;
+ linux,axis = <0>; /* ABS_X */
+ gpio-decoder,max-value = <9>;
+ };
};
&am33xx_pinmux {
--
2.9.2
next prev parent reply other threads:[~2016-08-12 4:52 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-12 4:52 [PATCH 0/2] AM335x-ICE: Add support for rotary switch Vignesh R
2016-08-12 4:52 ` [PATCH 1/2] input: misc: Add generic input driver to read encoded GPIO lines Vignesh R
2016-08-12 18:59 ` Rob Herring
2016-08-17 6:42 ` Vignesh R
2016-08-12 4:52 ` Vignesh R [this message]
2016-08-12 19:00 ` [PATCH 2/2] ARM: dts: am335x-icev2: Add nodes for gpio-decoder Rob Herring
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=20160812045229.29241-3-vigneshr@ti.com \
--to=vigneshr@ti.com \
--cc=linux-arm-kernel@lists.infradead.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).