From patchwork Thu Jun 25 10:54:32 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Martin Sperl X-Patchwork-Id: 6674801 Return-Path: X-Original-To: patchwork-linux-spi@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 1B805C05AC for ; Thu, 25 Jun 2015 10:54:48 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 4FEC220651 for ; Thu, 25 Jun 2015 10:54:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 68C0920630 for ; Thu, 25 Jun 2015 10:54:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751408AbbFYKyp (ORCPT ); Thu, 25 Jun 2015 06:54:45 -0400 Received: from 212-186-180-163.dynamic.surfer.at ([212.186.180.163]:52929 "EHLO cgate.sperl.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751207AbbFYKyp (ORCPT ); Thu, 25 Jun 2015 06:54:45 -0400 Received: from raspb.intern.sperl.org (account martin@sperl.org [10.10.10.32] verified) by sperl.org (CommuniGate Pro SMTP 6.1.2) with ESMTPSA id 6331145; Thu, 25 Jun 2015 10:54:42 +0000 From: kernel@martin.sperl.org To: devicetree@vger.kernel.org, linux-rpi-kernel@lists.infradead.org, linux-spi@vger.kernel.org, Mark Brown , Lee Jones , Stephen Warren , Stefan Wahren Cc: Martin Sperl Subject: [PATCH V2] dt: brcm, bcm2835-aux-spi: add binding documentation for new spi-bcm2835aux Date: Thu, 25 Jun 2015 10:54:32 +0000 Message-Id: <1435229673-2214-1-git-send-email-kernel@martin.sperl.org> X-Mailer: git-send-email 1.7.10.4 Sender: linux-spi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org X-Spam-Status: No, score=-8.3 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, 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 From: Martin Sperl Signed-off-by: Martin Sperl --- .../bindings/spi/brcm,bcm2835-aux-spi.txt | 35 ++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 Documentation/devicetree/bindings/spi/brcm,bcm2835-aux-spi.txt Changelog: V1 -> V2: fixed typo added cs-gpios diff --git a/Documentation/devicetree/bindings/spi/brcm,bcm2835-aux-spi.txt b/Documentation/devicetree/bindings/spi/brcm,bcm2835-aux-spi.txt new file mode 100644 index 0000000..66f52d3 --- /dev/null +++ b/Documentation/devicetree/bindings/spi/brcm,bcm2835-aux-spi.txt @@ -0,0 +1,35 @@ +Broadcom BCM2835 auxiliar SPI1/2 controller + +The BCM2835 contains two forms of SPI master controller, one known simply as +SPI0, and the other known as the "Universal SPI Master"; part of the +auxiliary block. This binding applies to the SPI1/2 controller. + +Required properties: +- compatible: Should be "brcm,bcm2835-aux-spi". +- reg: Should contain register location and length for the spi block + as well as for the common aux block control +- interrupts: Should contain shared interrupt of the aux block +- clocks: The clock feeding the SPI controller. +- cs-gpios: the cs-gpios (native cs is NOT supported) + +Example: + +spi1@7e215080 { + compatible = "brcm,bcm2835-aux-spi"; + reg = <0x7e215080 0x40>, <0x7e215000 0x08>; + interrupts = <1 29>; + clocks = <&clk_spi>; + #address-cells = <1>; + #size-cells = <0>; + cs-gpios = <&gpio 18>, <&gpio 17>, <&gpio 16>; +}; + +spi2@7e2150c0 { + compatible = "brcm,bcm2835-aux-spi"; + reg = <0x7e2150c0 0x40>, <0x7e215000 0x08>; + interrupts = <1 29>; + clocks = <&clk_spi>; + #address-cells = <1>; + #size-cells = <0>; + cs-gpios = <&gpio 43>, <&gpio 44>, <&gpio 45>; +};