From patchwork Tue Sep 10 09:32:53 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lars Poeschel X-Patchwork-Id: 1160146 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=lemonage.de Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 46SKHD1plzz9sPD for ; Tue, 10 Sep 2019 19:19:36 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728837AbfIJJTf (ORCPT ); Tue, 10 Sep 2019 05:19:35 -0400 Received: from smtp3.goneo.de ([85.220.129.37]:33404 "EHLO smtp3.goneo.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729439AbfIJJTf (ORCPT ); Tue, 10 Sep 2019 05:19:35 -0400 Received: from localhost (localhost [127.0.0.1]) by smtp3.goneo.de (Postfix) with ESMTP id 0247F23FDF8; Tue, 10 Sep 2019 11:19:32 +0200 (CEST) X-Virus-Scanned: by goneo X-Spam-Flag: NO X-Spam-Score: -3.035 X-Spam-Level: X-Spam-Status: No, score=-3.035 tagged_above=-999 tests=[ALL_TRUSTED=-1, AWL=-0.135, BAYES_00=-1.9] autolearn=ham Received: from smtp3.goneo.de ([127.0.0.1]) by localhost (smtp3.goneo.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id dffO01LN1ocM; Tue, 10 Sep 2019 11:19:31 +0200 (CEST) Received: from lem-wkst-02.lemonage.de. (hq.lemonage.de [87.138.178.34]) by smtp3.goneo.de (Postfix) with ESMTPA id 671F923FA02; Tue, 10 Sep 2019 11:19:31 +0200 (CEST) From: Lars Poeschel To: Rob Herring , Mark Rutland , "GitAuthor: Lars Poeschel" , devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS), linux-kernel@vger.kernel.org (open list) Cc: Johan Hovold Subject: [PATCH v7 2/7] nfc: pn532_uart: Add NXP PN532 to devicetree docs Date: Tue, 10 Sep 2019 11:32:53 +0200 Message-Id: <20190910093256.1920-1-poeschel@lemonage.de> X-Mailer: git-send-email 2.23.0 MIME-Version: 1.0 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Add a simple binding doc for the pn532. Cc: Johan Hovold Signed-off-by: Lars Poeschel --- Changes in v6: - Rebased the patch series on v5.3-rc5 - Picked up Rob's Reviewed-By Changes in v4: - Add documentation about reg property in case of i2c Changes in v3: - seperate binding doc instead of entry in trivial-devices.txt .../devicetree/bindings/nfc/pn532.txt | 33 +++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 Documentation/devicetree/bindings/nfc/pn532.txt diff --git a/Documentation/devicetree/bindings/nfc/pn532.txt b/Documentation/devicetree/bindings/nfc/pn532.txt new file mode 100644 index 000000000000..d5aaa588073d --- /dev/null +++ b/Documentation/devicetree/bindings/nfc/pn532.txt @@ -0,0 +1,33 @@ +NXP PN532 NFC Chip + +Required properties: +- compatible: Should be + - "nxp,pn532" Place a node with this inside the devicetree node of the bus + where the NFC chip is connected to. + Currently the kernel has phy bindings for uart and i2c. + - "nxp,pn532-i2c" (DEPRECATED) only works for the i2c binding. + - "nxp,pn533-i2c" (DEPRECATED) only works for the i2c binding. + +Required properties if connected on i2c: +- reg: for the i2c bus address. This is fixed at 0x48 for the PN532. + +Example uart: + +uart4: serial@49042000 { + compatible = "ti,omap3-uart"; + + pn532: nfc { + compatible = "nxp,pn532"; + }; +}; + +Example i2c: + +i2c1: i2c@0 { + compatible = "ti,omap3-i2c"; + + pn532: nfc { + compatible = "nxp,pn532"; + reg = <0x48>; + }; +};