From patchwork Wed Apr 8 17:45:00 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Harald Geyer X-Patchwork-Id: 6181971 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id D6F169F1C4 for ; Wed, 8 Apr 2015 17:56:29 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 074A42037B for ; Wed, 8 Apr 2015 17:56:29 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 3EE1120373 for ; Wed, 8 Apr 2015 17:56:25 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1YfuAt-0001w3-NL; Wed, 08 Apr 2015 17:54:03 +0000 Received: from mail.cosmopool.net ([2a01:4f8:160:20c1::10:107]) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1YfuAp-0001p4-JO for linux-arm-kernel@lists.infradead.org; Wed, 08 Apr 2015 17:54:00 +0000 Received: from localhost (localhost [127.0.0.1]) by mail.cosmopool.net (Postfix) with ESMTP id 2836D903BC0; Wed, 8 Apr 2015 19:45:26 +0200 (CEST) Received: from mail.cosmopool.net ([127.0.0.1]) by localhost (mail.your-server.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id BZ3agoHXkP8V; Wed, 8 Apr 2015 19:45:25 +0200 (CEST) Received: from huygens.ccbib.org (unknown [10.0.10.106]) by mail.cosmopool.net (Postfix) with SMTP id 6C953903AD9; Wed, 8 Apr 2015 19:45:24 +0200 (CEST) Received: by huygens.ccbib.org (sSMTP sendmail emulation); Wed, 08 Apr 2015 17:45:24 +0000 From: Harald Geyer To: Shawn Guo , Sascha Hauer , Fabio.Estevam@freescale.com, linux-arm-kernel@lists.infradead.org Subject: [PATCH] ARM: dts: imx23-olinuxino: Add i2c support Date: Wed, 8 Apr 2015 17:45:00 +0000 Message-Id: <1428515100-1496-1-git-send-email-harald@ccbib.org> X-Mailer: git-send-email 1.7.10.4 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20150408_105359_883289_49A3C17F X-CRM114-Status: UNSURE ( 8.46 ) X-CRM114-Notice: Please train this message. X-Spam-Score: 0.0 (/) Cc: Harald Geyer X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The imx23-olinuxino board has an i2c interface exposed on UEXT connector. This patch provides the necessary devicetree code. Tested with MOD-LCD1x9 from Olimex. This patch is based on work by Fadil Berisha with his permission. However all bugs are mine. Signed-off-by: Harald Geyer --- arch/arm/boot/dts/imx23-olinuxino.dts | 6 +++++ arch/arm/boot/dts/imx23.dtsi | 40 ++++++++++++++++++++++++++++++++- 2 files changed, 45 insertions(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/imx23-olinuxino.dts b/arch/arm/boot/dts/imx23-olinuxino.dts index 7e6eef2..85718df 100644 --- a/arch/arm/boot/dts/imx23-olinuxino.dts +++ b/arch/arm/boot/dts/imx23-olinuxino.dts @@ -73,6 +73,12 @@ status = "okay"; }; + i2c: i2c@80058000 { + pinctrl-names = "default"; + pinctrl-0 = <&i2c_pins_b>; + status = "okay"; + }; + duart: serial@80070000 { pinctrl-names = "default"; pinctrl-0 = <&duart_pins_a>; diff --git a/arch/arm/boot/dts/imx23.dtsi b/arch/arm/boot/dts/imx23.dtsi index bbcfb5a..c892d58 100644 --- a/arch/arm/boot/dts/imx23.dtsi +++ b/arch/arm/boot/dts/imx23.dtsi @@ -308,6 +308,39 @@ fsl,voltage = ; fsl,pull-up = ; }; + + i2c_pins_a: i2c@0 { + reg = <0>; + fsl,pinmux-ids = < + MX23_PAD_I2C_SCL__I2C_SCL + MX23_PAD_I2C_SDA__I2C_SDA + >; + fsl,drive-strength = ; + fsl,voltage = ; + fsl,pull-up = ; + }; + + i2c_pins_b: i2c@1 { + reg = <1>; + fsl,pinmux-ids = < + MX23_PAD_LCD_ENABLE__I2C_SCL + MX23_PAD_LCD_HSYNC__I2C_SDA + >; + fsl,drive-strength = ; + fsl,voltage = ; + fsl,pull-up = ; + }; + + i2c_pins_c: i2c@2 { + reg = <2>; + fsl,pinmux-ids = < + MX23_PAD_SSP1_DATA1__I2C_SCL + MX23_PAD_SSP1_DATA2__I2C_SDA + >; + fsl,drive-strength = ; + fsl,voltage = ; + fsl,pull-up = ; + }; }; digctl@8001c000 { @@ -444,8 +477,13 @@ status = "disabled"; }; - i2c@80058000 { + i2c: i2c@80058000 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "fsl,imx23-i2c"; reg = <0x80058000 0x2000>; + interrupts = <27>; + clock-frequency = <100000>; dmas = <&dma_apbx 3>; dma-names = "rx-tx"; status = "disabled";