From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AH8x225lROdWH7T5I9DXJzNTg7LFD6arslzK3CjD1jIM/ETQ45V0pTwsTyOVh1wujw1oicrG+Yve ARC-Seal: i=1; a=rsa-sha256; t=1519196423; cv=none; d=google.com; s=arc-20160816; b=J352J9mYQWk+SYmggft0Z9ehryWNaA0/GKsD8Hz25UG+JRxRxYI0ohqOxfDyZWl2/E aqXjQQcQ4SbYLCMBViEKAmployl7dsN50aZBKwOvaudZYdfzb3NNSQ2Ss/xIe2TKIa4I NNaqLpfpSY8i8IIP8ocG0LclTtBEn6IXpLu5GwQmqoYo8G+IMU8Z8wpuaYOI+8S2eI4S igHJX0eCCDYSRfeH72N6w0PWNput1WxQ1OD9GS4u2haiO23l39JNpeSEkWY9HK63fiEL X6lUU9yfe1KiIjHZ9nZeGjH++8Uk0a6oKgA1SUh/CDY18KZczFNjgCudOp2Yfvr91pQ8 ZGsQ== 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=PyK3N3I3jFVv3LwVXAan44NRFfJtHC66jZZkcraMgm4=; b=N3sMSL8xLYT5NGSKXgRBvfINpqXObUbK9qey53//HFCHzMtND99F6wGPVAa5iCtX3Z vFr9dUCuXHmfoJ5hJbBUgr7aTBUvphFoSin4KfhdccUSAN822rkw9RCea2/yQThmORHu A+TCJh5o//Y1S0Vhl81I576UhOptTY1Gu88sFjn2f9MCXSnvD2l1zHKfYmBLt3DLUrQQ 28XlC0U2nu4X4pRzBxF37C3K13XvVDMJlsH11SM5aMtjzLJGlXYbdzB+JcY/SFpHCL68 zmMbixS9jjp1GRQJrXTRtrVjqi1G+J7hYBsDrZSzAA0V3UQ25C164yh+mmYjryrU1Yam 448w== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of rrajk@nvidia.com designates 216.228.121.64 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 216.228.121.64 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 23:00:22 -0800 From: Rajkumar Rampelli To: , , , , , , , , , , , , , , , , , , , , , , CC: , , , , , , , , Subject: [PATCH 06/10] arm64: tegra: Add Tachometer Controller on Tegra186 Date: Wed, 21 Feb 2018 12:28:55 +0530 Message-ID: <1519196339-9377-7-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?1592992909578156623?= X-GMAIL-MSGID: =?utf-8?q?1592992909578156623?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: The NVIDIA Tegra186 SoC has a Tachometer Controller that analyzes the PWM signal of a Fan and reports the period value through pwm interface. Signed-off-by: Rajkumar Rampelli --- arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts | 5 +++++ arch/arm64/boot/dts/nvidia/tegra186.dtsi | 11 +++++++++++ 2 files changed, 16 insertions(+) diff --git a/arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts b/arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts index bd5305a..13c3e59 100644 --- a/arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts +++ b/arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts @@ -172,4 +172,9 @@ vin-supply = <&vdd_5v0_sys>; }; }; + + tachometer@39c0000 { + nvidia,pulse-per-rev = <2>; + nvidia,capture-window-len = <2>; + }; }; diff --git a/arch/arm64/boot/dts/nvidia/tegra186.dtsi b/arch/arm64/boot/dts/nvidia/tegra186.dtsi index b762227..8f2d598 100644 --- a/arch/arm64/boot/dts/nvidia/tegra186.dtsi +++ b/arch/arm64/boot/dts/nvidia/tegra186.dtsi @@ -1031,4 +1031,15 @@ (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>; interrupt-parent = <&gic>; }; + + tegra_tachometer: tachometer@39c0000 { + compatible = "nvidia,tegra186-pwm-tachometer"; + reg = <0x0 0x039c0000 0x0 0x10>; + #pwm-cells = <2>; + clocks = <&bpmp TEGRA186_CLK_TACH>; + clock-names = "tachometer"; + resets = <&bpmp TEGRA186_RESET_TACH>; + reset-names = "tachometer"; + status = "disabled"; + }; }; -- 2.1.4