From patchwork Thu Oct 18 18:36:29 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matt Weber X-Patchwork-Id: 10647795 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 4B79A109C for ; Thu, 18 Oct 2018 18:36:33 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3D50628F70 for ; Thu, 18 Oct 2018 18:36:33 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 301FD29010; Thu, 18 Oct 2018 18:36:33 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2450C28F70 for ; Thu, 18 Oct 2018 18:36:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727212AbeJSCir (ORCPT ); Thu, 18 Oct 2018 22:38:47 -0400 Received: from da1vs02.rockwellcollins.com ([205.175.227.29]:15753 "EHLO da1vs02.rockwellcollins.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726955AbeJSCir (ORCPT ); Thu, 18 Oct 2018 22:38:47 -0400 Received: from ofwda1n02.rockwellcollins.com (HELO crulimr02.rockwellcollins.com) ([205.175.227.14]) by da1vs02.rockwellcollins.com with ESMTP; 18 Oct 2018 13:36:30 -0500 X-Received: from largo.rockwellcollins.com (unknown [192.168.140.76]) by crulimr02.rockwellcollins.com (Postfix) with ESMTP id B56A460173; Thu, 18 Oct 2018 13:36:30 -0500 (CDT) From: Matt Weber To: linux-iio@vger.kernel.org Cc: jic23@kernel.org, knaack.h@gmx.de, lars@metafoo.de, pmeerw@pmeerw.net, Paresh Chaudhary , Matt Weber Subject: [PATCH v3 2/2] iio:temperature:max31856:Add device tree bind info Date: Thu, 18 Oct 2018 13:36:29 -0500 Message-Id: <1539887789-7562-2-git-send-email-matthew.weber@rockwellcollins.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1539887789-7562-1-git-send-email-matthew.weber@rockwellcollins.com> References: <1539887789-7562-1-git-send-email-matthew.weber@rockwellcollins.com> Sender: linux-iio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Paresh Chaudhary This patch added device tree binding info for MAX31856 driver. Signed-off-by: Paresh Chaudhary Signed-off-by: Matt Weber --- Changes v1 -> v2 [Matt - Removed comment block and added possibilities of thermocouple type in device tree binding doc. v2 -> v3 - Rebased --- .../bindings/iio/temperature/max31856.txt | 32 ++++++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 33 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/temperature/max31856.txt diff --git a/Documentation/devicetree/bindings/iio/temperature/max31856.txt b/Documentation/devicetree/bindings/iio/temperature/max31856.txt new file mode 100644 index 0000000..e1def9f --- /dev/null +++ b/Documentation/devicetree/bindings/iio/temperature/max31856.txt @@ -0,0 +1,32 @@ +Maxim MAX31856 thermocouple support + +https://datasheets.maximintegrated.com/en/ds/MAX31856.pdf + +Required properties: + - compatible: must be "max31856" + - reg: SPI chip select number for the device + - spi-max-frequency: As per datasheet max. supported freq is 5000000 + - spi-cpha: must be defined for max31856 to enable SPI mode 1 + - type: Type of thermocouple (By default is K-Type) + 0x00 : TYPE_B + 0x01 : TYPE_E + 0x02 : TYPE_J + 0x03 : TYPE_K (default) + 0x04 : TYPE_N + 0x05 : TYPE_R + 0x06 : TYPE_S + 0x07 : TYPE_T + + Refer to spi/spi-bus.txt for generic SPI slave bindings. + +Optional properties: + - one-shot: Enable one-shot Conversion mode (By default mode is auto) + + Example: + max31856@0 { + compatible = "max31856"; + reg = <0>; + spi-max-frequency = <5000000>; + spi-cpha; + type = <0x03>; + }; diff --git a/MAINTAINERS b/MAINTAINERS index 3cfa518..44ec309 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -7163,6 +7163,7 @@ L: linux-iio@vger.kernel.org S: Maintained F: drivers/iio/temperature/max31856.c F: Documentation/ABI/testing/sysfs-bus-iio-temperature-max31856 +F: Documentation/devicetree/bindings/iio/temperature/max31856.txt IIO UNIT CONVERTER M: Peter Rosin