Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751340AbbFAQT2 (ORCPT ); Mon, 1 Jun 2015 12:19:28 -0400 Received: from mail-pa0-f45.google.com ([209.85.220.45]:32998 "EHLO mail-pa0-f45.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752910AbbFAQTL (ORCPT ); Mon, 1 Jun 2015 12:19:11 -0400 From: Moritz Fischer To: jassisinghbrar@gmail.com Cc: linux-kernel@vger.kernel.org, robh+dt@kernel.org, pawel.moll@arm.com, mark.rutland@arm.com, ijc+devicetree@hellion.org.uk, galak@codeaurora.org, michal.simek@xilinx.com, soren.brinkmann@xilinx.com, akpm@linux-foundation.org, gregkh@linuxfoundation.org, mchehab@osg.samsung.com, arnd@arndb.de, joe@perches.com, jingoohan1@gmail.com, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Moritz Fischer Subject: [PATCHv4 1/2] dts: Adding docs for Xilinx LogiCORE IP mailbox driver. Date: Mon, 1 Jun 2015 09:18:26 -0700 Message-Id: <1433175507-3833-2-git-send-email-moritz.fischer@ettus.com> X-Mailer: git-send-email 2.4.1 In-Reply-To: <1433175507-3833-1-git-send-email-moritz.fischer@ettus.com> References: <1433175507-3833-1-git-send-email-moritz.fischer@ettus.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2532 Lines: 77 Changes from v3: - Changed reg size to 0x100 Changes from v2: - Addressed Michal's stylistic comments - Fixed typo in compatible string Changes from v1: - Added common clock framework support Changes from v0: - Fixed example bindings Signed-off-by: Moritz Fischer Acked-by: Michal Simek --- .../bindings/mailbox/xilinx-mailbox.txt | 44 ++++++++++++++++++++ 1 file changed, 44 insertions(+) diff --git a/Documentation/devicetree/bindings/mailbox/xilinx-mailbox.txt b/Documentation/devicetree/bindings/mailbox/xilinx-mailbox.txt new file mode 100644 index 0000000..f9ec46d --- /dev/null +++ b/Documentation/devicetree/bindings/mailbox/xilinx-mailbox.txt @@ -0,0 +1,44 @@ +Xilinx Mailbox Driver +===================== + +Required properties: +- compatible : "xlnx,mailbox-2.1". +- reg : physical base address of the mailbox and length of + memory mapped region. +- #mbox-cells : common mailbox binding property to identify the number + of cells required for the mailbox specifier, should be 1 +- clocks : phandle to clock provider +- clock-names : must be 'mbox' + +Optional properties: +- interrupt-parent : interrupt source phandle +- interrupts : interrupt number, The interrupt specifier format + depends on the interrupt controller parent. + +Example: + mbox: mailbox@40400000 { + compatible = "xlnx,mailbox-2.1"; + reg = <0x40400000 0x100>; + interrupt-parent = <&intc>; + interrupts = <5>; + #mbox-cells = <1>; + clocks = <&clkc 15>; + clock-names = "mbox"; + }; + +Mailbox client +=============== +"mboxes" and the optional "mbox-names" (please see +Documentation/devicetree/bindings/mailbox/mailbox.txt for details). Each value +of the mboxes property should contain a phandle to the mailbox controller +device node and second argument is the channel index. It must be 0 (hardware +support only one channel). The equivalent "mbox-names" property value can be +used to give a name to the communication channel to be used by the client user. + +Example: + mclient0: mclient0@400 { + compatible = "client-1.0"; + reg = <0x400 0x10>; + mbox-names = "mbox"; + mboxes = <&mbox 0>; + }; -- 2.4.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/