From patchwork Mon Mar 9 20:44:59 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ray Jui X-Patchwork-Id: 5971541 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 73FBBBF440 for ; Mon, 9 Mar 2015 21:01:25 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id B8F6020456 for ; Mon, 9 Mar 2015 21:01:23 +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 DA55C20450 for ; Mon, 9 Mar 2015 21:01:22 +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 1YV4kd-0005hK-MU; Mon, 09 Mar 2015 20:58:11 +0000 Received: from mail-gw2-out.broadcom.com ([216.31.210.63]) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1YV4Wa-00087Q-NL for linux-arm-kernel@lists.infradead.org; Mon, 09 Mar 2015 20:43:42 +0000 X-IronPort-AV: E=Sophos;i="5.11,369,1422950400"; d="scan'208";a="58981275" Received: from irvexchcas07.broadcom.com (HELO IRVEXCHCAS07.corp.ad.broadcom.com) ([10.9.208.55]) by mail-gw2-out.broadcom.com with ESMTP; 09 Mar 2015 13:43:51 -0700 Received: from IRVEXCHSMTP2.corp.ad.broadcom.com (10.9.207.52) by IRVEXCHCAS07.corp.ad.broadcom.com (10.9.208.55) with Microsoft SMTP Server (TLS) id 14.3.174.1; Mon, 9 Mar 2015 13:43:19 -0700 Received: from mail-irva-13.broadcom.com (10.10.10.20) by IRVEXCHSMTP2.corp.ad.broadcom.com (10.9.207.52) with Microsoft SMTP Server id 14.3.174.1; Mon, 9 Mar 2015 13:43:19 -0700 Received: from mail.broadcom.com (unknown [10.136.8.49]) by mail-irva-13.broadcom.com (Postfix) with ESMTP id E25DE40FE5; Mon, 9 Mar 2015 13:42:02 -0700 (PDT) From: Ray Jui To: Linus Walleij , Alexandre Courbot , Stephen Warren , Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , "Kumar Gala" , Grant Likely , Christian Daudt , Matt Porter , Florian Fainelli , Russell King , Arnd Bergmann , Paul Bolle Subject: [PATCH v6 5/8] pinctrl: Cygnus: define Broadcom Cygnus GPIO/PINCONF binding Date: Mon, 9 Mar 2015 13:44:59 -0700 Message-ID: <1425933902-20652-6-git-send-email-rjui@broadcom.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1425933902-20652-1-git-send-email-rjui@broadcom.com> References: <1425933902-20652-1-git-send-email-rjui@broadcom.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20150309_134340_886983_DDB7EEF3 X-CRM114-Status: GOOD ( 12.74 ) X-Spam-Score: -2.3 (--) Cc: devicetree@vger.kernel.org, Scott Branden , Ray Jui , linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org, Anatol Pomazau , Dmitry Torokhov , bcm-kernel-feedback-list@broadcom.com, linux-arm-kernel@lists.infradead.org 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: , 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 Document the GPIO/PINCONF device tree binding for Broadcom Cygnus SoC Signed-off-by: Ray Jui Reviewed-by: Scott Branden --- .../bindings/pinctrl/brcm,cygnus-gpio.txt | 98 ++++++++++++++++++++ 1 file changed, 98 insertions(+) create mode 100644 Documentation/devicetree/bindings/pinctrl/brcm,cygnus-gpio.txt diff --git a/Documentation/devicetree/bindings/pinctrl/brcm,cygnus-gpio.txt b/Documentation/devicetree/bindings/pinctrl/brcm,cygnus-gpio.txt new file mode 100644 index 0000000..6540ca5 --- /dev/null +++ b/Documentation/devicetree/bindings/pinctrl/brcm,cygnus-gpio.txt @@ -0,0 +1,98 @@ +Broadcom Cygnus GPIO/PINCONF Controller + +Required properties: + +- compatible: + Must be "brcm,cygnus-ccm-gpio", "brcm,cygnus-asiu-gpio", or + "brcm,cygnus-crmu-gpio" + +- reg: + Define the base and range of the I/O address space that contains the Cygnus +GPIO/PINCONF controller registers + +- #gpio-cells: + Must be two. The first cell is the GPIO pin number (within the +controller's pin space) and the second cell is used for the following: + bit[0]: polarity (0 for active high and 1 for active low) + +- gpio-controller: + Specifies that the node is a GPIO controller + +Optional properties: + +- interrupts: + Interrupt ID + +- interrupt-controller: + Specifies that the node is an interrupt controller + +- pinmux: + Specifies the phandle to the IOMUX device, where pins can be individually +muxed to GPIO + +Supported generic PINCONF properties in child nodes: + +- pins: + The list of pins (within the controller's own pin space) that properties +in the node apply to. Pin names are "gpio-" + +- bias-disable: + Disable pin bias + +- bias-pull-up: + Enable internal pull up resistor + +- bias-pull-down: + Enable internal pull down resistor + +- drive-strength: + Valid drive strength values include 2, 4, 6, 8, 10, 12, 14, 16 (mA) + +Example: + gpio_ccm: gpio@1800a000 { + compatible = "brcm,cygnus-ccm-gpio"; + reg = <0x1800a000 0x50>, + <0x0301d164 0x20>; + #gpio-cells = <2>; + gpio-controller; + interrupts = ; + interrupt-controller; + + touch_pins: touch_pins { + pwr: pwr { + pins = "gpio-0"; + drive-strength = <16>; + }; + + event: event { + pins = "gpio-1"; + bias-pull-up; + }; + }; + }; + + gpio_asiu: gpio@180a5000 { + compatible = "brcm,cygnus-asiu-gpio"; + reg = <0x180a5000 0x668>; + #gpio-cells = <2>; + gpio-controller; + interrupts = ; + interrupt-controller; + }; + + /* + * Touchscreen that uses the CCM GPIO 0 and 1 + */ + tsc { + ... + ... + gpio-pwr = <&gpio_ccm 0 0>; + gpio-event = <&gpio_ccm 1 0>; + }; + + /* Bluetooth that uses the ASIU GPIO 5, with polarity inverted */ + bluetooth { + ... + ... + bcm,rfkill-bank-sel = <&gpio_asiu 5 1> + }