From patchwork Mon Jun 16 15:07:23 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Laurent Pinchart X-Patchwork-Id: 4360291 Return-Path: X-Original-To: patchwork-linux-arm@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 78FDBBEECB for ; Mon, 16 Jun 2014 15:24:19 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 26081202A1 for ; Mon, 16 Jun 2014 15:24:18 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (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 0E070202E5 for ; Mon, 16 Jun 2014 15:24:17 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1WwYYr-0003gS-7e; Mon, 16 Jun 2014 15:11:05 +0000 Received: from perceval.ideasonboard.com ([95.142.166.194]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1WwYXM-0001Io-UC for linux-arm-kernel@lists.infradead.org; Mon, 16 Jun 2014 15:09:34 +0000 Received: from avalon.ideasonboard.com (unknown [109.143.144.197]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 68BCA35A40; Mon, 16 Jun 2014 17:07:04 +0200 (CEST) From: Laurent Pinchart To: linux-sh@vger.kernel.org Subject: [PATCH v4 11/19] clocksource: sh_mtu2: Add DT support Date: Mon, 16 Jun 2014 17:07:23 +0200 Message-Id: <1402931251-22581-12-git-send-email-laurent.pinchart+renesas@ideasonboard.com> X-Mailer: git-send-email 1.8.5.5 In-Reply-To: <1402931251-22581-1-git-send-email-laurent.pinchart+renesas@ideasonboard.com> References: <1402931251-22581-1-git-send-email-laurent.pinchart+renesas@ideasonboard.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20140616_080933_199087_B5957C70 X-CRM114-Status: GOOD ( 11.70 ) X-Spam-Score: -1.0 (-) Cc: Simon Horman , Thomas Gleixner , Daniel Lezcano , linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-2.9 required=5.0 tests=BAYES_00,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 Document DT bindings and parse them in the MTU2 driver. Cc: devicetree@vger.kernel.org Signed-off-by: Laurent Pinchart Tested-by: Wolfram Sang --- .../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 ebdf9d1..05ae3d9 100644 --- a/drivers/clocksource/sh_mtu2.c +++ b/drivers/clocksource/sh_mtu2.c @@ -23,6 +23,7 @@ #include #include #include +#include #include #include #include @@ -502,11 +503,18 @@ 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, };