From patchwork Fri Sep 11 11:22:03 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Martin Sperl X-Patchwork-Id: 516728 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 25E97140271 for ; Fri, 11 Sep 2015 21:22:24 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751915AbbIKLWX (ORCPT ); Fri, 11 Sep 2015 07:22:23 -0400 Received: from 212-186-180-163.dynamic.surfer.at ([212.186.180.163]:32889 "EHLO cgate.sperl.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752191AbbIKLWW (ORCPT ); Fri, 11 Sep 2015 07:22:22 -0400 Received: from raspcm.intern.sperl.org (account martin@sperl.org [10.10.10.41] verified) by sperl.org (CommuniGate Pro SMTP 6.1.2) with ESMTPSA id 6343037; Fri, 11 Sep 2015 11:22:19 +0000 From: kernel@martin.sperl.org To: Mark Brown , Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , Stephen Warren , Lee Jones , Russell King , Lubomir Rintel , Arnd Bergmann , devicetree@vger.kernel.org, linux-rpi-kernel@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-spi@vger.kernel.org, eEric Anholt Cc: Martin Sperl Subject: [PATCH v6 1/4] dt/bindings: bcm2835: spi: add bindings for the bcm2835 auxiliary spi devices Date: Fri, 11 Sep 2015 11:22:03 +0000 Message-Id: <1441970527-2403-2-git-send-email-kernel@martin.sperl.org> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1441970527-2403-1-git-send-email-kernel@martin.sperl.org> References: <1441970527-2403-1-git-send-email-kernel@martin.sperl.org> Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org From: Martin Sperl This defines the spi1 and spi2 devices in the device-tree. Signed-off-by: Martin Sperl Acked-by: Stephen Warren --- .../bindings/spi/brcm,bcm2835-aux-spi.txt | 38 ++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 Documentation/devicetree/bindings/spi/brcm,bcm2835-aux-spi.txt Changelog: v4->v5: fixed wording for reg removed reference to syscon removed documentation on typical GPIO config v5->v6: move to clk-bcm2835-aux clock driver -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html 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..9887b07 --- /dev/null +++ b/Documentation/devicetree/bindings/spi/brcm,bcm2835-aux-spi.txt @@ -0,0 +1,38 @@ +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 +- interrupts: Should contain shared interrupt of the aux block +- clocks: The clock feeding the SPI controller - needs to + point to the auxiliar clock driver of the bcm2835, + as this clock will enable the output gate for the specific + clock. +- cs-gpios: the cs-gpios (native cs is NOT supported) + see also spi-bus.txt + +Example: + +spi1@7e215080 { + compatible = "brcm,bcm2835-aux-spi"; + reg = <0x7e215080 0x40>; + interrupts = <1 29>; + clocks = <&aux_clocks BCM2835_AUX_CLOCK_SPI1>; + #address-cells = <1>; + #size-cells = <0>; + cs-gpios = <&gpio 18>, <&gpio 17>, <&gpio 16>; +}; + +spi2@7e2150c0 { + compatible = "brcm,bcm2835-aux-spi"; + reg = <0x7e2150c0 0x40>; + interrupts = <1 29>; + clocks = <&aux_clocks BCM2835_AUX_CLOCK_SPI2>; + #address-cells = <1>; + #size-cells = <0>; + cs-gpios = <&gpio 43>, <&gpio 44>, <&gpio 45>; +};