From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AG47ELu/YY2sf4rKXd7SrIhxRC7O6rEJWHwiloDWJb8p+oFKmbMe2gcfHuSgf3g+bskUhzquTUlQ ARC-Seal: i=1; a=rsa-sha256; t=1519196401; cv=none; d=google.com; s=arc-20160816; b=HnCswe9iUFZonCEKR5SMHIg98IibFwAY2KTmbEe0JpRo+asbY6pFy3RYAqkCvBsz9V t1I3rly+1bQBM/lFPizJB2HqMK5OclZwaMN5zfohBVq1AN4hF7x36ltgjxZDRYtE8ut9 co6BbFCKl/Gnxz4gYXzx+PCOAn3PowgWAeSqX4OCRqd8qgHbT3PsFu6P2+aBrUZT0Bvd cLhdwg8lPkHykhii34NYJKG1uEVWzr2leLwImHbwm1Z6ZFgwlflUPDpQCmiOqFVIWoUj ygjOx/+8JPsH7VJqSKBkSSQmeaTQsOKiwP9aQnSuPvh+bi+BbHqOm/y4QVLiIU6fABb3 XqQw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=mime-version:references:in-reply-to:message-id:date:subject:cc:to :from:arc-authentication-results; bh=Zkzsd45GOQK4qdErtazaxQwyAwbXnyZ49lGFMObF+TE=; b=dWf7CMvYoPFxvrtvsBF6dzhxysB4++EhucW53f8GWFwOlNBhkHvzGGJrBxAsxIqTj/ pMBf2EVG8Rg6n+oJqnGpoaR8G4gnpmX3CgKlD3ElS1zpKj4X3YxVZ2e/+vyYiIyYZpdQ ADTyrkpleO433m7rAJ2FLt7bLob2qHAzycJAPkeXGAnI/y3Wiljvan+htsb7F9ZtVqiK S6GAEGBtADIc3KscQoAwnrGX2R+ACglzTlDotOZtQEpThtnWKS65CGAz7I8bB12cMiaX m/imiFHNeyjczJFDdEdaGhWOC6ZtMb5fXvISNA9ZG0eZdtvYwCg2k3b+DbtOQHJc15eq hMDA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of rrajk@nvidia.com designates 216.228.121.65 as permitted sender) smtp.mailfrom=rrajk@nvidia.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=nvidia.com Authentication-Results: mx.google.com; spf=pass (google.com: domain of rrajk@nvidia.com designates 216.228.121.65 as permitted sender) smtp.mailfrom=rrajk@nvidia.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=nvidia.com X-PGP-Universal: processed; by hqpgpgate101.nvidia.com on Tue, 20 Feb 2018 23:00:00 -0800 From: Rajkumar Rampelli To: , , , , , , , , , , , , , , , , , , , , , , CC: , , , , , , , , Subject: [PATCH 04/10] hwmon: generic-pwm-tachometer: Add DT binding details Date: Wed, 21 Feb 2018 12:28:53 +0530 Message-ID: <1519196339-9377-5-git-send-email-rrajk@nvidia.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1519196339-9377-1-git-send-email-rrajk@nvidia.com> References: <1519196339-9377-1-git-send-email-rrajk@nvidia.com> MIME-Version: 1.0 Content-Type: text/plain X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: =?utf-8?q?1592992886059931447?= X-GMAIL-MSGID: =?utf-8?q?1592992886059931447?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: Add DT binding details for the PWM based generic tachometer driver which gets the period of the PWM tach-output from Fan via PWM IP having capability of capturing the signal. Signed-off-by: Rajkumar Rampelli --- .../bindings/hwmon/generic-pwm-tachometer.txt | 25 ++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 Documentation/devicetree/bindings/hwmon/generic-pwm-tachometer.txt diff --git a/Documentation/devicetree/bindings/hwmon/generic-pwm-tachometer.txt b/Documentation/devicetree/bindings/hwmon/generic-pwm-tachometer.txt new file mode 100644 index 0000000..3541fe5 --- /dev/null +++ b/Documentation/devicetree/bindings/hwmon/generic-pwm-tachometer.txt @@ -0,0 +1,25 @@ +Device tree bindings for fan tach output connected to PWM controller with +PWM capture capability. + +Required properties: +- compatible : Should be "generic-pwm-tachometer" +- pwms : PWM handle. Please refer pwm.txt DT binding for more details. + +Example: + tegra_tachometer: tachometer@39c0000 { + compatible = "nvidia,tegra186-pwm-tachometer"; + reg = <0x0 0x039c0000 0x0 0x10>; + clocks = <&bpmp_clks TEGRA194_CLK_TACH>; + clock-names = "tachometer"; + resets = <&bpmp_resets TEGRA194_RESET_TACH>; + reset-names = "tachometer"; + nvidia,pulse-per-rev = <2>; + nvidia,sampling-window = <2>; + status = "okay"; + }; + + generic_pwm_tachometer { + compatible = "generic-pwm-tachometer"; + pwms = <&tegra_tachometer 0 1000000>; + status = "okay"; + }; -- 2.1.4