From patchwork Mon Apr 27 14:45:37 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Geert Uytterhoeven X-Patchwork-Id: 6281401 X-Patchwork-Delegate: geert@linux-m68k.org Return-Path: X-Original-To: patchwork-linux-sh@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 95424BF4A6 for ; Mon, 27 Apr 2015 14:51:19 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 328842024F for ; Mon, 27 Apr 2015 14:50:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A1103202B4 for ; Mon, 27 Apr 2015 14:49:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964813AbbD0Opm (ORCPT ); Mon, 27 Apr 2015 10:45:42 -0400 Received: from michel.telenet-ops.be ([195.130.137.88]:60069 "EHLO michel.telenet-ops.be" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S964811AbbD0Opl (ORCPT ); Mon, 27 Apr 2015 10:45:41 -0400 Received: from ayla.of.borg ([84.193.93.87]) by michel.telenet-ops.be with bizsmtp id M2ld1q00f1t5w8s062ldNe; Mon, 27 Apr 2015 16:45:38 +0200 Received: from ramsan.of.borg ([192.168.97.29] helo=ramsan) by ayla.of.borg with esmtp (Exim 4.82) (envelope-from ) id 1YmkHy-00027o-4f; Mon, 27 Apr 2015 16:45:38 +0200 Received: from geert by ramsan with local (Exim 4.82) (envelope-from ) id 1YmkHy-0007ce-R6; Mon, 27 Apr 2015 16:45:38 +0200 From: Geert Uytterhoeven To: Thomas Gleixner , Jason Cooper Cc: devicetree@vger.kernel.org, linux-sh@vger.kernel.org, linux-kernel@vger.kernel.org, Geert Uytterhoeven Subject: [PATCH v2] irqchip: renesas-intc-irqpin: Improve binding documentation Date: Mon, 27 Apr 2015 16:45:37 +0200 Message-Id: <1430145937-29267-1-git-send-email-geert+renesas@glider.be> X-Mailer: git-send-email 1.9.1 Sender: linux-sh-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00, T_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 Add missing documentation for required properties: - interrupt-controller, - parent interrupts (one entry per provided interrupt). Add missing documentation for optional properties: - functional clock (managed since commit 705bc96c2c15313c ("irqchip: renesas-intc-irqpin: Add minimal runtime PM support")), - power-domains. Add an example, taken from r8a7740.dtsi. Signed-off-by: Geert Uytterhoeven Acked-by: Simon Horman --- This is v2 of "irqchip: renesas-intc-irqpin: Add optional functional clock to bindings": - Document all missing properties, not just the functional clock, - Use a generic name for the device node in the example. --- .../interrupt-controller/renesas,intc-irqpin.txt | 39 ++++++++++++++++++++-- 1 file changed, 37 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/interrupt-controller/renesas,intc-irqpin.txt b/Documentation/devicetree/bindings/interrupt-controller/renesas,intc-irqpin.txt index 4f7946ae8adcdc04..772c550d3b4bcfe2 100644 --- a/Documentation/devicetree/bindings/interrupt-controller/renesas,intc-irqpin.txt +++ b/Documentation/devicetree/bindings/interrupt-controller/renesas,intc-irqpin.txt @@ -13,9 +13,12 @@ Required properties: - reg: Base address and length of each register bank used by the external IRQ pins driven by the interrupt controller hardware module. The base addresses, length and number of required register banks varies with soctype. - +- interrupt-controller: Identifies the node as an interrupt controller. - #interrupt-cells: has to be <2>: an interrupt index and flags, as defined in - interrupts.txt in this directory + interrupts.txt in this directory. +- interrupts: Must contain a list of interrupt specifiers. For each interrupt + provided by this irqpin controller instance, there must be one entry, + referring to the corresponding parent interrupt. Optional properties: @@ -25,3 +28,35 @@ Optional properties: if different from the default 4 bits - control-parent: disable and enable interrupts on the parent interrupt controller, needed for some broken implementations +- clocks: Must contain a reference to the functional clock. This property is + mandatory if the hardware implements a controllable functional clock for + the irqpin controller instance. +- power-domains: Must contain a reference to the power domain. This property is + mandatory if the irqpin controller instance is part of a controllable power + domain. + + +Example +------- + + irqpin1: interrupt-controller@e6900004 { + compatible = "renesas,intc-irqpin-r8a7740", + "renesas,intc-irqpin"; + #interrupt-cells = <2>; + interrupt-controller; + reg = <0xe6900004 4>, + <0xe6900014 4>, + <0xe6900024 1>, + <0xe6900044 1>, + <0xe6900064 1>; + interrupts = <0 149 IRQ_TYPE_LEVEL_HIGH + 0 149 IRQ_TYPE_LEVEL_HIGH + 0 149 IRQ_TYPE_LEVEL_HIGH + 0 149 IRQ_TYPE_LEVEL_HIGH + 0 149 IRQ_TYPE_LEVEL_HIGH + 0 149 IRQ_TYPE_LEVEL_HIGH + 0 149 IRQ_TYPE_LEVEL_HIGH + 0 149 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&mstp2_clks R8A7740_CLK_INTCA>; + power-domains = <&pd_a4s>; + };