From: festevam@gmail.com (Fabio Estevam)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] ARM: olinuxino: Add gpio-led support
Date: Mon, 20 Aug 2012 22:43:15 -0300 [thread overview]
Message-ID: <1345513396-12320-1-git-send-email-festevam@gmail.com> (raw)
From: Fabio Estevam <fabio.estevam@freescale.com>
Olinuxino has a LED connected to MX23_PAD_SSP1_DETECT__GPIO_2_1 pin.
Since mmc0_4bit_pins_a defines MX23_PAD_SSP1_DETECT as SSP function, create
a new mmc0_4bit_pins_b.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
---
arch/arm/boot/dts/imx23-olinuxino.dts | 28 +++++++++++++++++++++++++++-
arch/arm/boot/dts/imx23.dtsi | 15 +++++++++++++++
2 files changed, 42 insertions(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/imx23-olinuxino.dts b/arch/arm/boot/dts/imx23-olinuxino.dts
index a286873..dece3fe 100644
--- a/arch/arm/boot/dts/imx23-olinuxino.dts
+++ b/arch/arm/boot/dts/imx23-olinuxino.dts
@@ -27,10 +27,25 @@
ssp0: ssp at 80010000 {
compatible = "fsl,imx23-mmc";
pinctrl-names = "default";
- pinctrl-0 = <&mmc0_4bit_pins_a &mmc0_pins_fixup>;
+ pinctrl-0 = <&mmc0_4bit_pins_b &mmc0_pins_fixup>;
bus-width = <4>;
status = "okay";
};
+
+ pinctrl at 80018000 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&hog_pins_a>;
+
+ hog_pins_a: hog-gpios at 0 {
+ reg = <0>;
+ fsl,pinmux-ids = <
+ 0x2013 /* MX23_PAD_SSP1_DETECT__GPIO_2_1 */
+ >;
+ fsl,drive-strength = <0>;
+ fsl,voltage = <1>;
+ fsl,pull-up = <0>;
+ };
+ };
};
apbx at 80040000 {
@@ -47,4 +62,15 @@
};
};
};
+
+ leds {
+ compatible = "gpio-leds";
+
+ user {
+ label = "green";
+ gpios = <&gpio2 1 0>;
+ linux,default-trigger = "default-on";
+ default-state = "on";
+ };
+ };
};
diff --git a/arch/arm/boot/dts/imx23.dtsi b/arch/arm/boot/dts/imx23.dtsi
index 9700872..a8b423a 100644
--- a/arch/arm/boot/dts/imx23.dtsi
+++ b/arch/arm/boot/dts/imx23.dtsi
@@ -202,6 +202,21 @@
fsl,pull-up = <1>;
};
+ mmc0_4bit_pins_b: mmc0-4bit_b at 0 {
+ reg = <0>;
+ fsl,pinmux-ids = <
+ 0x2020 /* MX23_PAD_SSP1_DATA0__SSP1_DATA0 */
+ 0x2030 /* MX23_PAD_SSP1_DATA1__SSP1_DATA1 */
+ 0x2040 /* MX23_PAD_SSP1_DATA2__SSP1_DATA2 */
+ 0x2050 /* MX23_PAD_SSP1_DATA3__SSP1_DATA3 */
+ 0x2000 /* MX23_PAD_SSP1_CMD__SSP1_CMD */
+ 0x2060 /* MX23_PAD_SSP1_SCK__SSP1_SCK */
+ >;
+ fsl,drive-strength = <1>;
+ fsl,voltage = <1>;
+ fsl,pull-up = <1>;
+ };
+
mmc0_8bit_pins_a: mmc0-8bit at 0 {
reg = <0>;
fsl,pinmux-ids = <
--
1.7.9.5
next reply other threads:[~2012-08-21 1:43 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-21 1:43 Fabio Estevam [this message]
2012-08-22 3:24 ` [PATCH] ARM: olinuxino: Add gpio-led support Shawn Guo
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=1345513396-12320-1-git-send-email-festevam@gmail.com \
--to=festevam@gmail.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).