From: Rajkumar Rampelli <rrajk@nvidia.com>
To: <robh+dt@kernel.org>, <mark.rutland@arm.com>,
<thierry.reding@gmail.com>, <jonathanh@nvidia.com>,
<jdelvare@suse.com>, <linux@roeck-us.net>, <corbet@lwn.net>,
<catalin.marinas@arm.com>, <will.deacon@arm.com>,
<kstewart@linuxfoundation.org>, <gregkh@linuxfoundation.org>,
<pombredanne@nexb.com>, <mmaddireddy@nvidia.com>,
<mperttunen@nvidia.com>, <arnd@arndb.de>,
<gregory.clement@free-electrons.com>, <timur@codeaurora.org>,
<andy.gross@linaro.org>, <xuwei5@hisilicon.com>,
<elder@linaro.org>, <heiko@sntech.de>, <krzk@kernel.org>,
<ard.biesheuvel@linaro.org>
Cc: <devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<linux-pwm@vger.kernel.org>, <linux-tegra@vger.kernel.org>,
<linux-hwmon@vger.kernel.org>, <linux-doc@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>, <ldewangan@nvidia.com>,
<rrajk@nvidia.com>
Subject: [PATCH 02/10] dt-bindings: Tegra186 tachometer device tree bindings
Date: Wed, 21 Feb 2018 12:28:51 +0530 [thread overview]
Message-ID: <1519196339-9377-3-git-send-email-rrajk@nvidia.com> (raw)
In-Reply-To: <1519196339-9377-1-git-send-email-rrajk@nvidia.com>
Supply Device tree binding documentation for the NVIDIA
Tegra186 SoC's Tachometer Controller
Signed-off-by: Rajkumar Rampelli <rrajk@nvidia.com>
---
.../bindings/pwm/pwm-tegra-tachometer.txt | 31 ++++++++++++++++++++++
1 file changed, 31 insertions(+)
create mode 100644 Documentation/devicetree/bindings/pwm/pwm-tegra-tachometer.txt
diff --git a/Documentation/devicetree/bindings/pwm/pwm-tegra-tachometer.txt b/Documentation/devicetree/bindings/pwm/pwm-tegra-tachometer.txt
new file mode 100644
index 0000000..4a7ead4
--- /dev/null
+++ b/Documentation/devicetree/bindings/pwm/pwm-tegra-tachometer.txt
@@ -0,0 +1,31 @@
+Bindings for a PWM based Tachometer driver
+
+Required properties:
+- compatible: Must be "nvidia,tegra186-pwm-tachometer"
+- reg: physical base addresses of the controller and length of
+ memory mapped region.
+- #pwm-cells: should be 2. See pwm.txt in this directory for a
+ description of the cells format.
+- clocks: phandle list of tachometer clocks
+- clock-names: should be "tachometer". See clock-bindings.txt in documentations
+- resets: phandle to the reset controller for the Tachometer IP
+- reset-names: should be "tachometer". See reset.txt in documentations
+- nvidia,pulse-per-rev: Integer, pulses per revolution of a Fan. This value
+ obtained from Fan specification document.
+- nvidia,capture-window-len: Integer, window of the Fan Tach monitor, it indicates
+ that how many period of the input fan tach signal will the FAN TACH logic
+ monitor. Valid values are 1, 2, 4 and 8 only.
+
+Example:
+ tegra_tachometer: tachometer@39c0000 {
+ compatible = "nvidia,tegra186-pwm-tachometer";
+ reg = <0x0 0x039c0000 0x0 0x10>;
+ #pwm-cells = <2>;
+ clocks = <&tegra_car TEGRA186_CLK_TACH>;
+ clock-names = "tachometer";
+ resets = <&tegra_car TEGRA186_RESET_TACH>;
+ reset-names = "tachometer";
+ nvidia,pulse-per-rev = <2>;
+ nvidia,capture-window-len = <2>;
+ status = "disabled";
+ };
--
2.1.4
next prev parent reply other threads:[~2018-02-21 6:58 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-21 6:58 [PATCH 00/10] Implementation of Tegra Tachometer driver Rajkumar Rampelli
2018-02-21 6:58 ` [PATCH 01/10] pwm: core: Add support for PWM HW driver with pwm capture only Rajkumar Rampelli
2018-02-21 6:58 ` Rajkumar Rampelli [this message]
2018-02-21 6:58 ` [PATCH 03/10] pwm: tegra: Add PWM based Tachometer driver Rajkumar Rampelli
2018-02-21 6:58 ` [PATCH 04/10] hwmon: generic-pwm-tachometer: Add DT binding details Rajkumar Rampelli
2018-02-21 6:58 ` [PATCH 05/10] hwmon: generic-pwm-tachometer: Add generic PWM based tachometer Rajkumar Rampelli
2018-02-21 7:15 ` Mikko Perttunen
2018-02-21 14:46 ` Guenter Roeck
2018-02-21 15:20 ` Mikko Perttunen
2018-02-21 16:08 ` Guenter Roeck
2018-02-23 11:45 ` RAJKUMAR
2018-03-01 22:08 ` Rob Herring
2018-02-21 14:50 ` Guenter Roeck
2018-02-28 5:38 ` Rajkumar Rampelli
2018-02-28 5:58 ` Guenter Roeck
2018-02-28 6:07 ` Rajkumar Rampelli
2018-02-28 6:12 ` Rajkumar Rampelli
2018-02-28 7:03 ` Mikko Perttunen
2018-02-28 14:29 ` Guenter Roeck
2018-03-07 9:47 ` Rajkumar Rampelli
2018-03-07 14:20 ` Guenter Roeck
2018-03-08 6:06 ` Laxman Dewangan
2018-03-08 14:31 ` Guenter Roeck
2018-03-08 15:21 ` Laxman Dewangan
2018-03-08 7:57 ` Mikko Perttunen
2018-03-08 14:33 ` Guenter Roeck
2018-02-21 6:58 ` [PATCH 06/10] arm64: tegra: Add Tachometer Controller on Tegra186 Rajkumar Rampelli
2018-02-21 6:58 ` [PATCH 07/10] arm64: tegra: Add PWM based Tachometer support " Rajkumar Rampelli
2018-02-21 6:58 ` [PATCH 08/10] arm64: defconfig: enable Nvidia Tegra Tachometer as a module Rajkumar Rampelli
2018-02-21 6:58 ` [PATCH 09/10] arm64: defconfig: Enable Generic PWM based Tachometer driver Rajkumar Rampelli
2018-02-21 6:58 ` [PATCH 10/10] arm64: tegra: Add PWM controller on Tegra186 soc Rajkumar Rampelli
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