From patchwork Mon Nov 16 12:01:02 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Markus Pargmann X-Patchwork-Id: 7624631 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 83974BF90C for ; Mon, 16 Nov 2015 12:11:10 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 0810920426 for ; Mon, 16 Nov 2015 12:11:05 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 27F3F2042B for ; Mon, 16 Nov 2015 12:11:04 +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 1ZyIak-0002M2-8d; Mon, 16 Nov 2015 12:09:02 +0000 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZyITz-0003OB-A7 for linux-arm-kernel@lists.infradead.org; Mon, 16 Nov 2015 12:02:08 +0000 Received: from dude.hi.pengutronix.de ([2001:67c:670:100:1d::7]) by metis.ext.pengutronix.de with esmtps (TLS1.2:RSA_AES_128_CBC_SHA1:128) (Exim 4.80) (envelope-from ) id 1ZyITD-00031C-ER; Mon, 16 Nov 2015 13:01:15 +0100 Received: from mpa by dude.hi.pengutronix.de with local (Exim 4.86) (envelope-from ) id 1ZyITC-0008MH-L8; Mon, 16 Nov 2015 13:01:14 +0100 From: Markus Pargmann To: Shawn Guo , Dmitry Torokhov , Jonathan Cameron , Lee Jones Subject: [PATCH v8 1/8] ARM: dt: Binding documentation for imx25 ADC/TSC Date: Mon, 16 Nov 2015 13:01:02 +0100 Message-Id: <1447675269-8831-2-git-send-email-mpa@pengutronix.de> X-Mailer: git-send-email 2.6.1 In-Reply-To: <1447675269-8831-1-git-send-email-mpa@pengutronix.de> References: <1447675269-8831-1-git-send-email-mpa@pengutronix.de> X-SA-Exim-Connect-IP: 2001:67c:670:100:1d::7 X-SA-Exim-Mail-From: mpa@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-arm-kernel@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20151116_040203_920722_368C7DDD X-CRM114-Status: GOOD ( 14.08 ) X-Spam-Score: -2.5 (--) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, =?UTF-8?q?Eric=20B=C3=A9nard?= , linux-iio@vger.kernel.org, Hartmut Knaack , Denis Carikli , Sascha Hauer , linux-input@vger.kernel.org, Markus Pargmann , Fabio Estevam , linux-arm-kernel@lists.infradead.org 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=-5.0 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, 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 This documentation describes the devicetree bindings for the ADC/Touchscreen unit of the i.MX25 SoC. Signed-off-by: Markus Pargmann Acked-by: Jonathan Cameron Acked-by: Rob Herring --- Notes: Changes in v6: - Removed adc-ref property and replaced it with refp and refn for positive and negative references. The properties are optional now as the default behaviour is a positive internal reference voltage and ADC GND as negative reference. .../devicetree/bindings/mfd/fsl-imx25-tsadc.txt | 46 ++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/fsl-imx25-tsadc.txt diff --git a/Documentation/devicetree/bindings/mfd/fsl-imx25-tsadc.txt b/Documentation/devicetree/bindings/mfd/fsl-imx25-tsadc.txt new file mode 100644 index 000000000000..a857af0eb68c --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/fsl-imx25-tsadc.txt @@ -0,0 +1,46 @@ +Freescale mx25 ADC/TSC multifunction device + +This device combines two general purpose conversion queues one used for general +ADC and the other used for touchscreens. + +Required properties: + - compatible: Should be "fsl,imx25-tsadc". + - reg: Memory range of the device. + - interrupts: Interrupt for this device as described in + interrupts/interrupts.txt + - clocks: An 'ipg' clock defined as described in clocks/clock.txt + - interrupt-controller: This device is an interrupt controller. It controls + the interrupts of both conversion queues. + - #interrupt-cells: Should be '<1>'. + - #address-cells: Should be '<1>'. + - #size-cells: Should be '<1>'. + - ranges + +This device includes two conversion queues which can be added as subnodes. +The first queue is for the touchscreen, the second for general purpose ADC. + +Example: + tscadc: tscadc@50030000 { + compatible = "fsl,imx25-tsadc"; + reg = <0x50030000 0xc>; + interrupts = <46>; + clocks = <&clks 119>; + clock-names = "ipg"; + interrupt-controller; + #interrupt-cells = <1>; + #address-cells = <1>; + #size-cells = <1>; + ranges; + + tsc: tcq@50030400 { + compatible = "fsl,imx25-tcq"; + reg = <0x50030400 0x60>; + ... + }; + + adc: gcq@50030800 { + compatible = "fsl,imx25-gcq"; + reg = <0x50030800 0x60>; + ... + }; + };