From patchwork Fri Jul 7 16:31:00 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fabrice Gasnier X-Patchwork-Id: 9830721 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id DCB5D602BD for ; Fri, 7 Jul 2017 16:40:42 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C7DDC286D0 for ; Fri, 7 Jul 2017 16:40:42 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id BB5AD286E2; Fri, 7 Jul 2017 16:40:42 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID autolearn=unavailable version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 4E3BB286D0 for ; Fri, 7 Jul 2017 16:40:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=twEfyssSFmvaOQLyOmeB6qC6P6o4DNvJRTD9W5dHSeM=; b=A8fZSxYhpJShnN yVkfbDyZBagwbQXU1/LVS2x/4DzIWw73mzTA1yg0f4nu7YoVnAOsNWxSnBwvs3ueJzj4e0k20ikSo UHsnY3KCDb8n9GL+33zdx8O8TdcsGZlSoGwylw8/LG1L3bMyg2u8YZLZgwQ9Q22cIYZu6W9kFUOOb uYG8c7Fq/iUI6qKlsQWyr+24RyUW7wEeSuveDWeRpW+dBTvH2d2mk2uwr7wW9bnVOpgWW3mGbpWIv zhrIdrKbuqTj/uHq43WTjUUfuUFR9MZ896UyEcxo7AFz6UWp8+L6hJAgTmTUGIjedoP7x1eJRuqSv YSYc32HINe1pUNeWLMIw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1dTWJ7-0003sn-U9; Fri, 07 Jul 2017 16:40:41 +0000 Received: from mx07-00178001.pphosted.com ([62.209.51.94]) by bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1dTWAb-0007PF-7i for linux-arm-kernel@lists.infradead.org; Fri, 07 Jul 2017 16:31:57 +0000 Received: from pps.filterd (m0046037.ppops.net [127.0.0.1]) by mx07-.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id v67GSwc2023609; Fri, 7 Jul 2017 18:31:24 +0200 Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-.pphosted.com with ESMTP id 2bj8awhxfk-1 (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NOT); Fri, 07 Jul 2017 18:31:24 +0200 Received: from zeta.dmz-eu.st.com (zeta.dmz-eu.st.com [164.129.230.9]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 6CDC04D; Fri, 7 Jul 2017 16:31:23 +0000 (GMT) Received: from Webmail-eu.st.com (sfhdag5node3.st.com [10.75.127.15]) by zeta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 47F6E28ED; Fri, 7 Jul 2017 16:31:23 +0000 (GMT) Received: from localhost (10.75.127.47) by SFHDAG5NODE3.st.com (10.75.127.15) with Microsoft SMTP Server (TLS) id 15.0.1178.4; Fri, 7 Jul 2017 18:31:22 +0200 From: Fabrice Gasnier To: , , , , Subject: [PATCH v3 1/9] dt-bindings: mfd: Add STM32 LPTimer binding Date: Fri, 7 Jul 2017 18:31:00 +0200 Message-ID: <1499445068-7037-2-git-send-email-fabrice.gasnier@st.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1499445068-7037-1-git-send-email-fabrice.gasnier@st.com> References: <1499445068-7037-1-git-send-email-fabrice.gasnier@st.com> MIME-Version: 1.0 X-Originating-IP: [10.75.127.47] X-ClientProxiedBy: SFHDAG5NODE3.st.com (10.75.127.15) To SFHDAG5NODE3.st.com (10.75.127.15) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2017-07-07_08:, , signatures=0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170707_093153_789922_E5ADDA02 X-CRM114-Status: UNSURE ( 9.17 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mark.rutland@arm.com, devicetree@vger.kernel.org, alexandre.torgue@st.com, linux-pwm@vger.kernel.org, linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, mcoquelin.stm32@gmail.com, fabrice.gasnier@st.com, linux-arm-kernel@lists.infradead.org, benjamin.gaignard@st.com Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Add documentation for STMicroelectronics STM32 Low-Power Timer binding. Signed-off-by: Fabrice Gasnier Acked-by: Jonathan Cameron Acked-by: Rob Herring --- Changes in v3: - Rob's comment on node name: timer@... Changes in v2: - Lee's comments: s/Low Power/Low-Power/, remove 0x in example, improve properties descriptions --- .../devicetree/bindings/mfd/stm32-lptimer.txt | 48 ++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/stm32-lptimer.txt diff --git a/Documentation/devicetree/bindings/mfd/stm32-lptimer.txt b/Documentation/devicetree/bindings/mfd/stm32-lptimer.txt new file mode 100644 index 0000000..2a9ff29 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/stm32-lptimer.txt @@ -0,0 +1,48 @@ +STMicroelectronics STM32 Low-Power Timer + +The STM32 Low-Power Timer (LPTIM) is a 16-bit timer that provides several +functions: +- PWM output (with programmable prescaler, configurable polarity) +- Quadrature encoder, counter +- Trigger source for STM32 ADC/DAC (LPTIM_OUT) + +Required properties: +- compatible: Must be "st,stm32-lptimer". +- reg: Offset and length of the device's register set. +- clocks: Phandle to the clock used by the LP Timer module. +- clock-names: Must be "mux". +- #address-cells: Should be '<1>'. +- #size-cells: Should be '<0>'. + +Optional subnodes: +- pwm: See ../pwm/pwm-stm32-lp.txt +- counter: See ../iio/timer/stm32-lptimer-cnt.txt +- trigger: See ../iio/timer/stm32-lptimer-trigger.txt + +Example: + + timer@40002400 { + compatible = "st,stm32-lptimer"; + reg = <0x40002400 0x400>; + clocks = <&timer_clk>; + clock-names = "mux"; + #address-cells = <1>; + #size-cells = <0>; + + pwm { + compatible = "st,stm32-pwm-lp"; + pinctrl-names = "default"; + pinctrl-0 = <&lppwm1_pins>; + }; + + trigger@0 { + compatible = "st,stm32-lptimer-trigger"; + reg = <0>; + }; + + counter { + compatible = "st,stm32-lptimer-counter"; + pinctrl-names = "default"; + pinctrl-0 = <&lptim1_in_pins>; + }; + };