From patchwork Wed Aug 24 13:09:16 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Benoit Cousson X-Patchwork-Id: 1092302 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter2.kernel.org (8.14.4/8.14.4) with ESMTP id p7ODBYfe007664 for ; Wed, 24 Aug 2011 13:11:36 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751695Ab1HXNLe (ORCPT ); Wed, 24 Aug 2011 09:11:34 -0400 Received: from comal.ext.ti.com ([198.47.26.152]:52021 "EHLO comal.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751550Ab1HXNL0 (ORCPT ); Wed, 24 Aug 2011 09:11:26 -0400 Received: from dlep33.itg.ti.com ([157.170.170.112]) by comal.ext.ti.com (8.13.7/8.13.7) with ESMTP id p7ODBIj5013165 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Wed, 24 Aug 2011 08:11:18 -0500 Received: from dlep26.itg.ti.com (smtp-le.itg.ti.com [157.170.170.27]) by dlep33.itg.ti.com (8.13.7/8.13.8) with ESMTP id p7ODBIDd011911; Wed, 24 Aug 2011 08:11:18 -0500 (CDT) Received: from DFLE70.ent.ti.com (localhost [127.0.0.1]) by dlep26.itg.ti.com (8.13.8/8.13.8) with ESMTP id p7ODBIwV027853; Wed, 24 Aug 2011 08:11:18 -0500 (CDT) Received: from dlelxv22.itg.ti.com (172.17.1.197) by dfle70.ent.ti.com (128.247.5.40) with Microsoft SMTP Server id 14.1.323.3; Wed, 24 Aug 2011 08:11:18 -0500 Received: from localhost.localdomain (lncpu04.tif.ti.com [137.167.102.15]) by dlelxv22.itg.ti.com (8.13.8/8.13.8) with ESMTP id p7ODA8Hk023561; Wed, 24 Aug 2011 08:11:16 -0500 From: Benoit Cousson To: , CC: , , , , , Benoit Cousson , Randy Dunlap Subject: [RFC PATCH 10/10] documentation/dt: Add OMAP GPIO properties Date: Wed, 24 Aug 2011 15:09:16 +0200 Message-ID: <1314191356-10963-11-git-send-email-b-cousson@ti.com> X-Mailer: git-send-email 1.7.0.4 In-Reply-To: <1314191356-10963-1-git-send-email-b-cousson@ti.com> References: <1314191356-10963-1-git-send-email-b-cousson@ti.com> MIME-Version: 1.0 Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.6 (demeter2.kernel.org [140.211.167.43]); Wed, 24 Aug 2011 13:11:36 +0000 (UTC) Add documentation for GPIO properties specific to OMAP. Signed-off-by: Benoit Cousson Cc: Randy Dunlap --- .../devicetree/bindings/gpio/gpio-omap.txt | 33 ++++++++++++++++++++ 1 files changed, 33 insertions(+), 0 deletions(-) create mode 100644 Documentation/devicetree/bindings/gpio/gpio-omap.txt diff --git a/Documentation/devicetree/bindings/gpio/gpio-omap.txt b/Documentation/devicetree/bindings/gpio/gpio-omap.txt new file mode 100644 index 0000000..692b1c7 --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/gpio-omap.txt @@ -0,0 +1,33 @@ +OMAP GPIO controller + +Required properties: +- compatible: + - "ti,omap2-gpio" for OMAP2 and OMAP3 controllers + - "ti,omap4-gpio" for OMAP4 controller +- #gpio-cells : Should be two. + - first cell is the pin number + - second cell is used to specify optional parameters (unused) +- gpio-controller : Marks the device node as a GPIO controller. + +OMAP specific properties: +- hwmods: Name of the hwmod associated to the GPIO +- id: 32 bits to identify the id (1 based index) +- bank_width: number of pin supported by the controller (16 or 32) +- debounce: set if the controller support the debouce funtionnality +- bank_count: number of controller support by the SoC. This is a temporary + hack until the bank_count is removed from the driver. + + +Example: + +gpio4: gpio4 { + compatible = "ti,omap4-gpio", "ti,omap-gpio"; + hwmods = "gpio4"; + id = <4>; + bank_width = <32>; + debounce; + no_idle_on_suspend; + #gpio-cells = <2>; + gpio-controller; +}; +