Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752580AbdFUObR (ORCPT ); Wed, 21 Jun 2017 10:31:17 -0400 Received: from mx07-00178001.pphosted.com ([62.209.51.94]:60466 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752088AbdFUObP (ORCPT ); Wed, 21 Jun 2017 10:31:15 -0400 From: Fabrice Gasnier To: , , , , CC: , , , , , , , , , Subject: [PATCH v2 1/8] dt-bindings: mfd: Add STM32 LPTimer binding Date: Wed, 21 Jun 2017 16:30:08 +0200 Message-ID: <1498055415-31513-2-git-send-email-fabrice.gasnier@st.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1498055415-31513-1-git-send-email-fabrice.gasnier@st.com> References: <1498055415-31513-1-git-send-email-fabrice.gasnier@st.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.75.127.47] X-ClientProxiedBy: SFHDAG3NODE1.st.com (10.75.127.7) To SFHDAG5NODE3.st.com (10.75.127.15) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2017-06-21_03:,, signatures=0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1993 Lines: 68 Add documentation for STMicroelectronics STM32 Low-Power Timer binding. Signed-off-by: Fabrice Gasnier --- 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..af859c8 --- /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: + + lptimer1: lptimer@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>; + }; + }; -- 1.9.1