From patchwork Thu Jan 24 03:45:08 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Patil, Rachna" X-Patchwork-Id: 2028971 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) by patchwork2.kernel.org (Postfix) with ESMTP id DE4D9DF264 for ; Thu, 24 Jan 2013 03:48:36 +0000 (UTC) Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1TyDl4-00061P-8b; Thu, 24 Jan 2013 03:45:46 +0000 Received: from devils.ext.ti.com ([198.47.26.153]) by merlin.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1TyDkb-0005tc-AT for linux-arm-kernel@lists.infradead.org; Thu, 24 Jan 2013 03:45:18 +0000 Received: from dbdp20.itg.ti.com ([172.24.170.38]) by devils.ext.ti.com (8.13.7/8.13.7) with ESMTP id r0O3j8iV030424; Wed, 23 Jan 2013 21:45:09 -0600 Received: from DBDE71.ent.ti.com (localhost [127.0.0.1]) by dbdp20.itg.ti.com (8.13.8/8.13.8) with ESMTP id r0O3j88m002854; Thu, 24 Jan 2013 09:15:08 +0530 (IST) Received: from dbdp32.itg.ti.com (172.24.170.251) by DBDE71.ent.ti.com (172.24.170.149) with Microsoft SMTP Server id 14.1.323.3; Thu, 24 Jan 2013 09:15:07 +0530 Received: from ucmsshproxy.india.ext.ti.com (dbdp20.itg.ti.com [172.24.170.38]) by dbdp32.itg.ti.com (8.13.8/8.13.8) with SMTP id r0O3j791016162; Thu, 24 Jan 2013 09:15:07 +0530 Received: from symphony.india.ext.ti.com (unknown [192.168.247.13]) by ucmsshproxy.india.ext.ti.com (Postfix) with ESMTP id 4ADAD158003; Thu, 24 Jan 2013 09:15:07 +0530 (IST) Received: from ubuntu-psp-linux.india.ext.ti.com (ubuntu-psp-linux [192.168.247.46]) by symphony.india.ext.ti.com (8.11.7p1+Sun/8.11.7) with ESMTP id r0O3j1R15485; Thu, 24 Jan 2013 09:15:01 +0530 (IST) From: "Patil, Rachna" To: , , , , , , Subject: [PATCH v4 4/8] MFD: ti_am335x_tscadc: add device tree binding information Date: Thu, 24 Jan 2013 09:15:08 +0530 Message-ID: <1358999112-31192-5-git-send-email-rachna@ti.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1358999112-31192-1-git-send-email-rachna@ti.com> References: <1358999112-31192-1-git-send-email-rachna@ti.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20130123_224517_491367_693156F3 X-CRM114-Status: GOOD ( 10.90 ) X-Spam-Score: -4.6 (----) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-4.6 points) pts rule name description ---- ---------------------- -------------------------------------------------- -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at http://www.dnswl.org/, high trust [198.47.26.153 listed in list.dnswl.org] 3.0 KHOP_BIG_TO_CC Sent to 10+ recipients instaed of Bcc or a list -0.0 SPF_PASS SPF: sender matches SPF record -0.7 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Cc: Russell King , Samuel Ortiz , Tony Lindgren , Dmitry Torokhov , Dmitry Torokhov , Rob Herring , gururaja.hebbar@ti.com, Grant Likely , Jonathan Cameron , Rob Landley , "Patil, Rachna" , Benit Cousson X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-arm-kernel-bounces@lists.infradead.org Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org From: "Patil, Rachna" Signed-off-by: Patil, Rachna --- Changes in v4: Subnodes and their properties documentation added. Non-standard properties prefixed with vendor name. .../devicetree/bindings/mfd/ti_am335x_tscadc.txt | 52 ++++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/ti_am335x_tscadc.txt diff --git a/Documentation/devicetree/bindings/mfd/ti_am335x_tscadc.txt b/Documentation/devicetree/bindings/mfd/ti_am335x_tscadc.txt new file mode 100644 index 0000000..0100771 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/ti_am335x_tscadc.txt @@ -0,0 +1,52 @@ +Texas Instruments - TSC / ADC multi-functional device + +ti_tscadc is a multi-function device with touchscreen and ADC on chip. +This document describes the binding for mfd device. + +Required properties: +- compatible: "ti,ti-tscadc" +- reg: Specifies the address of MFD block +- interrupts: IRQ line connected to the main SoC +- interrupt-parent: The parent interrupt controller + +Optional properties: +- ti,hwmods: Hardware information related to TSC/ADC MFD device + +Sub-nodes: +Device Description +------ ----------- +tsc Touchscreen +adc Analog to digital converter + +Sub-node device required properties: +tsc: +- ti,wires: 4/5/8 wire touchscreen support on the platform. +- ti,x-plate-resistance: X plate resistance. +- ti,steps-to-configure: A step is configured to read a single co-ordinate value, + can be applied more number of times for better results. +- ti,wire-config: Order for connecting wires on touchscreen. + +adc: +- ti,adc-channels: Number of ADC channels used. + +Example: + + tscadc: tscadc@44e0d000 { + compatible = "ti,ti-tscadc"; + reg = <0x44e0d000 0x1000>; + + interrupt-parent = <&intc>; + interrupts = <16>; + ti,hwmods = "adc_tsc"; + + tsc { + ti,wires = <4>; + ti,x-plate-resistance = <200>; + ti,steps-to-configure = <5>; + ti,wire-config = <0x00 0x11 0x22 0x33>; + }; + + adc { + ti,adc-channels = <4>; + }; + };