From patchwork Thu Aug 28 07:04:17 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Simon Horman X-Patchwork-Id: 4796561 Return-Path: X-Original-To: patchwork-ltsi-dev@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id A94CEC0338 for ; Thu, 28 Aug 2014 07:58:43 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id BB5B9201B9 for ; Thu, 28 Aug 2014 07:58:42 +0000 (UTC) Received: from mail.linuxfoundation.org (mail.linuxfoundation.org [140.211.169.12]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id AFAEC2017D for ; Thu, 28 Aug 2014 07:58:41 +0000 (UTC) Received: from mail.linux-foundation.org (localhost [127.0.0.1]) by mail.linuxfoundation.org (Postfix) with ESMTP id 4FF62115E; Thu, 28 Aug 2014 07:29:48 +0000 (UTC) X-Original-To: ltsi-dev@lists.linuxfoundation.org Delivered-To: ltsi-dev@mail.linuxfoundation.org Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id 9C63B114E for ; Thu, 28 Aug 2014 07:29:44 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from kirsty.vergenet.net (kirsty.vergenet.net [202.4.237.240]) by smtp1.linuxfoundation.org (Postfix) with ESMTP id E18281F88A for ; Thu, 28 Aug 2014 07:29:43 +0000 (UTC) Received: from ayumi.isobedori.kobe.vergenet.net (p4222-ipbfp1605kobeminato.hyogo.ocn.ne.jp [114.154.95.222]) by kirsty.vergenet.net (Postfix) with ESMTP id D2CCD267423; Thu, 28 Aug 2014 17:09:06 +1000 (EST) Received: by ayumi.isobedori.kobe.vergenet.net (Postfix, from userid 7100) id 6A3BDEDE607; Thu, 28 Aug 2014 16:09:04 +0900 (JST) From: Simon Horman To: ltsi-dev@lists.linuxfoundation.org Date: Thu, 28 Aug 2014 16:04:17 +0900 Message-Id: <1409209620-24487-732-git-send-email-horms+renesas@verge.net.au> X-Mailer: git-send-email 2.0.1 In-Reply-To: <1409209620-24487-1-git-send-email-horms+renesas@verge.net.au> References: <1409209620-24487-1-git-send-email-horms+renesas@verge.net.au> X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, 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 Cc: Magnus Damm Subject: [LTSI-dev] [PATCH LTSI-3.14 731/894] clocksource: sh_mtu2: Add DT support X-BeenThere: ltsi-dev@lists.linuxfoundation.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: "A list to discuss patches, development, and other things related to the LTSI project" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: ltsi-dev-bounces@lists.linuxfoundation.org Errors-To: ltsi-dev-bounces@lists.linuxfoundation.org X-Virus-Scanned: ClamAV using ClamSMTP From: Laurent Pinchart Document DT bindings and parse them in the MTU2 driver. Signed-off-by: Laurent Pinchart Tested-by: Wolfram Sang (cherry picked from commit cca8d0596c4c7acb371ea1bc5eee9b404b30516a) Signed-off-by: Simon Horman --- .../devicetree/bindings/timer/renesas,mtu2.txt | 39 ++++++++++++++++++++++ drivers/clocksource/sh_mtu2.c | 8 +++++ 2 files changed, 47 insertions(+) create mode 100644 Documentation/devicetree/bindings/timer/renesas,mtu2.txt diff --git a/Documentation/devicetree/bindings/timer/renesas,mtu2.txt b/Documentation/devicetree/bindings/timer/renesas,mtu2.txt new file mode 100644 index 0000000..917453f --- /dev/null +++ b/Documentation/devicetree/bindings/timer/renesas,mtu2.txt @@ -0,0 +1,39 @@ +* Renesas R-Car Multi-Function Timer Pulse Unit 2 (MTU2) + +The MTU2 is a multi-purpose, multi-channel timer/counter with configurable +clock inputs and programmable compare match. + +Channels share hardware resources but their counter and compare match value +are independent. The MTU2 hardware supports five channels indexed from 0 to 4. + +Required Properties: + + - compatible: must contain "renesas,mtu2" + + - reg: base address and length of the registers block for the timer module. + + - interrupts: interrupt specifiers for the timer, one for each entry in + interrupt-names. + - interrupt-names: must contain one entry named "tgi?a" for each enabled + channel, where "?" is the channel index expressed as one digit from "0" to + "4". + + - clocks: a list of phandle + clock-specifier pairs, one for each entry + in clock-names. + - clock-names: must contain "fck" for the functional clock. + + +Example: R7S72100 (RZ/A1H) MTU2 node + + mtu2: timer@fcff0000 { + compatible = "renesas,mtu2"; + reg = <0xfcff0000 0x400>; + interrupts = <0 139 IRQ_TYPE_LEVEL_HIGH>, + <0 146 IRQ_TYPE_LEVEL_HIGH>, + <0 150 IRQ_TYPE_LEVEL_HIGH>, + <0 154 IRQ_TYPE_LEVEL_HIGH>, + <0 159 IRQ_TYPE_LEVEL_HIGH>; + interrupt-names = "tgi0a", "tgi1a", "tgi2a", "tgi3a", "tgi4a"; + clocks = <&mstp3_clks R7S72100_CLK_MTU2>; + clock-names = "fck"; + }; diff --git a/drivers/clocksource/sh_mtu2.c b/drivers/clocksource/sh_mtu2.c index b0c229f..3d88698 100644 --- a/drivers/clocksource/sh_mtu2.c +++ b/drivers/clocksource/sh_mtu2.c @@ -23,6 +23,7 @@ #include #include #include +#include #include #include #include @@ -500,11 +501,18 @@ static const struct platform_device_id sh_mtu2_id_table[] = { }; MODULE_DEVICE_TABLE(platform, sh_mtu2_id_table); +static const struct of_device_id sh_mtu2_of_table[] __maybe_unused = { + { .compatible = "renesas,mtu2" }, + { } +}; +MODULE_DEVICE_TABLE(of, sh_mtu2_of_table); + static struct platform_driver sh_mtu2_device_driver = { .probe = sh_mtu2_probe, .remove = sh_mtu2_remove, .driver = { .name = "sh_mtu2", + .of_match_table = of_match_ptr(sh_mtu2_of_table), }, .id_table = sh_mtu2_id_table, };