From patchwork Wed Jun 18 15:29:32 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lee Jones X-Patchwork-Id: 361545 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id CE1B8140088 for ; Thu, 19 Jun 2014 01:29:43 +1000 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752500AbaFRP3m (ORCPT ); Wed, 18 Jun 2014 11:29:42 -0400 Received: from mail-ie0-f181.google.com ([209.85.223.181]:36145 "EHLO mail-ie0-f181.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752064AbaFRP3l (ORCPT ); Wed, 18 Jun 2014 11:29:41 -0400 Received: by mail-ie0-f181.google.com with SMTP id y20so815810ier.26 for ; Wed, 18 Jun 2014 08:29:40 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-type:content-disposition:in-reply-to :user-agent; bh=Rl91GvZRoZwC1usJITyNfExJXtVUu4/MrPHUlcVp+0s=; b=ePWjjS8ZYVBKDtVVJRZjGIpHvXNQIl42NMG5oFdfCfF/wMdFfu973B48731fy6h9Ic BGebM9lP/w2L1C00Bot1SVmdS2Jma7wu7DuBq3499HlZFaMPlvXltGi8G9FRMZaS0bDt P3SxyS9XOqmcBF4uXynV2xHYnW3z6/8L2tNObKxi5OuCClspY9vv37GqfmIliy8iIysd VcrR+gnKk4V5+YAXEPsTVSRiAqxcIcwspthIiD4YTynGLqrNgDHQ2cDTxuTus9TJzkXR 0/I+RlPCCNSYoXyud55UuPLvRlafvPQ5B2MmWOn/LxCDE0HipTzNrcRfB9wcN9yLpvdW IOnw== X-Gm-Message-State: ALoCoQkwVkiiVR+ZYcd0y7UrKsQBxzhe+MbX8ZNSzXYksyrEP6zLgnJVvX7SrDHstDOlLGL2MlZR X-Received: by 10.50.20.33 with SMTP id k1mr6092153ige.26.1403105380524; Wed, 18 Jun 2014 08:29:40 -0700 (PDT) Received: from lee--X1 (host109-148-235-194.range109-148.btcentralplus.com. [109.148.235.194]) by mx.google.com with ESMTPSA id l9sm7579495igx.7.2014.06.18.08.29.36 for (version=TLSv1.2 cipher=RC4-SHA bits=128/128); Wed, 18 Jun 2014 08:29:40 -0700 (PDT) Date: Wed, 18 Jun 2014 16:29:32 +0100 From: Lee Jones To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: kernel@stlinux.com, thierry.reding@gmail.com, linux-pwm@vger.kernel.org, maxime.coquelin@st.com, patrice.chotard@st.com, srinivas.kandagatla@gmail.com, devicetree@vger.kernel.org, ajitpal.singh@st.com Subject: [PATCH v2 7/7] pwm: st: Supply Device Tree binding documentation for ST's PWM IP Message-ID: <20140618152932.GG15956@lee--X1> References: <1403103172-19856-1-git-send-email-lee.jones@linaro.org> <1403103172-19856-7-git-send-email-lee.jones@linaro.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <1403103172-19856-7-git-send-email-lee.jones@linaro.org> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-pwm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pwm@vger.kernel.org pwm: st: Supply Device Tree binding documentation for ST's PWM IP Signed-off-by: Lee Jones --- To unsubscribe from this list: send the line "unsubscribe linux-pwm" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/Documentation/devicetree/bindings/pwm/pwm-st.txt b/Documentation/devicetree/bindings/pwm/pwm-st.txt new file mode 100644 index 0000000..84d2fb8 --- /dev/null +++ b/Documentation/devicetree/bindings/pwm/pwm-st.txt @@ -0,0 +1,41 @@ +STMicroelectronics PWM driver bindings +-------------------------------------- + +Required parameters: +- compatible : "st,pwm" +- #pwm-cells : Number of cells used to specify a PWM. First cell + specifies the per-chip index of the PWM to use and the + second cell is the period in nanoseconds - fixed to 2 + for STiH41x. +- reg : Physical base address and length of the controller's + registers. +- pinctrl-names: Set to "default". +- pinctrl-0: List of phandles pointing to pin configuration nodes + for PWM module. + For Pinctrl properties, please refer to [1]. +- clock-names: Set to "pwm". +- clocks: phandle of the clock used by the PWM module. + For Clk properties, please refer to [2]. + +Optional properties: +- st,pwm-num-chan: Number of available channels. If not passed, the driver + will consider single channel by default. + +[1] Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt +[2] Documentation/devicetree/bindings/clock/clock-bindings.txt + +Example: + +pwm1: pwm@fe510000 { + compatible = "st,pwm"; + reg = <0xfe510000 0x68>; + #pwm-cells = <2>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_pwm1_chan0_default + &pinctrl_pwm1_chan1_default + &pinctrl_pwm1_chan2_default + &pinctrl_pwm1_chan3_default>; + clocks = <&clk_sysin>; + clock-names = "pwm"; + st,pwm-num-chan = <4>; +};