From: Magnus Damm <magnus.damm@gmail.com>
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 03/04] ARM: shmobile: Genmai I2C-over-GPIO support
Date: Wed, 27 Nov 2013 08:28:05 +0000 [thread overview]
Message-ID: <20131127082805.20015.82680.sendpatchset@w520> (raw)
In-Reply-To: <20131127082736.20015.21303.sendpatchset@w520>
From: Magnus Damm <damm@opensource.se>
Add support for the Genmai I2C bus hooked up to P1_5 and P1_4 using
the i2c-gpio driver. On the bus sits a 24c128 EEPRROM.
Signed-off-by: Magnus Damm <damm@opensource.se>
---
arch/arm/boot/dts/r7s72100-genmai-reference.dts | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
--- 0008/arch/arm/boot/dts/r7s72100-genmai-reference.dts
+++ work/arch/arm/boot/dts/r7s72100-genmai-reference.dts 2013-11-27 15:51:31.000000000 +0900
@@ -39,4 +39,22 @@
gpios = <&port4 11 GPIO_ACTIVE_LOW>;
};
};
+
+ i2c@0 {
+ compatible = "i2c-gpio";
+ gpios = <&port1 5 GPIO_ACTIVE_HIGH /* sda */
+ &port1 4 GPIO_ACTIVE_HIGH /* scl */
+ >;
+ i2c-gpio,sda-open-drain;
+ i2c-gpio,scl-open-drain;
+ i2c-gpio,delay-us = <5>; /* ~100 kHz */
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ eeprom: 24c128@50 {
+ compatible = "at,24c128";
+ reg = <0x50>;
+ };
+ };
+
};
next prev parent reply other threads:[~2013-11-27 8:28 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-27 8:27 [PATCH 00/04] ARM: shmobile: r7s72100 and Genmai GPIO / PINCTRL support Magnus Damm
2013-11-27 8:27 ` [PATCH 01/04] ARM: shmobile: r7s72100 GPIO and PINCTRL device nodes Magnus Damm
2013-11-27 8:27 ` [PATCH 02/04] ARM: shmobile: Genmai LED1 and LED2 support Magnus Damm
2013-11-27 11:16 ` Laurent Pinchart
2013-11-27 8:28 ` Magnus Damm [this message]
2013-11-27 11:04 ` [PATCH 03/04] ARM: shmobile: Genmai I2C-over-GPIO support Wolfram Sang
2013-11-28 17:11 ` Sergei Shtylyov
2013-11-28 17:14 ` Laurent Pinchart
2013-11-28 18:13 ` Sergei Shtylyov
2013-11-27 11:15 ` Laurent Pinchart
2013-11-28 0:44 ` Magnus Damm
2013-11-28 0:46 ` Laurent Pinchart
2013-11-27 8:28 ` [PATCH 04/04] ARM: shmobile: Genmai SCIF2 PINCTRL configuration Magnus Damm
2013-11-27 11:16 ` Laurent Pinchart
2013-11-27 11:13 ` [PATCH 00/04] ARM: shmobile: r7s72100 and Genmai GPIO / PINCTRL support Laurent Pinchart
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