From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752296AbeEPRwE (ORCPT ); Wed, 16 May 2018 13:52:04 -0400 Received: from mail-yb0-f194.google.com ([209.85.213.194]:40799 "EHLO mail-yb0-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752267AbeEPRwC (ORCPT ); Wed, 16 May 2018 13:52:02 -0400 X-Google-Smtp-Source: AB8JxZokqClxRLV9CLChWh5cCLnV7grs4pHPAbCJ+Kfs0sUsThmRlpYRTOhxKBujoCpHemtzM1IxXw== From: William Breathitt Gray To: jic23@kernel.org Cc: benjamin.gaignard@st.com, fabrice.gasnier@st.com, linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Rob Herring , Mark Rutland , William Breathitt Gray Subject: [PATCH v6 6/9] dt-bindings: counter: Document stm32 quadrature encoder Date: Wed, 16 May 2018 13:51:55 -0400 Message-Id: X-Mailer: git-send-email 2.17.0 In-Reply-To: References: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Benjamin Gaignard Add bindings for STM32 Timer quadrature encoder. It is a sub-node of STM32 Timer which implement the counter part of the hardware. Cc: Rob Herring Cc: Mark Rutland Signed-off-by: Benjamin Gaignard Signed-off-by: William Breathitt Gray --- .../bindings/counter/stm32-timer-cnt.txt | 26 +++++++++++++++++++ .../devicetree/bindings/mfd/stm32-timers.txt | 7 +++++ 2 files changed, 33 insertions(+) create mode 100644 Documentation/devicetree/bindings/counter/stm32-timer-cnt.txt diff --git a/Documentation/devicetree/bindings/counter/stm32-timer-cnt.txt b/Documentation/devicetree/bindings/counter/stm32-timer-cnt.txt new file mode 100644 index 000000000000..377728128bef --- /dev/null +++ b/Documentation/devicetree/bindings/counter/stm32-timer-cnt.txt @@ -0,0 +1,26 @@ +STMicroelectronics STM32 Timer quadrature encoder + +STM32 Timer provides quadrature encoder counter mode to detect +angular position and direction of rotary elements, +from IN1 and IN2 input signals. + +Must be a sub-node of an STM32 Timer device tree node. +See ../mfd/stm32-timers.txt for details about the parent node. + +Required properties: +- compatible: Must be "st,stm32-timer-counter". +- pinctrl-names: Set to "default". +- pinctrl-0: List of phandles pointing to pin configuration nodes, + to set IN1/IN2 pins in mode of operation for Low-Power + Timer input on external pin. + +Example: + timers@40010000 { + compatible = "st,stm32-timers"; + ... + counter { + compatible = "st,stm32-timer-counter"; + pinctrl-names = "default"; + pinctrl-0 = <&tim1_in_pins>; + }; + }; diff --git a/Documentation/devicetree/bindings/mfd/stm32-timers.txt b/Documentation/devicetree/bindings/mfd/stm32-timers.txt index 1db6e0057a63..ff9c14ada30b 100644 --- a/Documentation/devicetree/bindings/mfd/stm32-timers.txt +++ b/Documentation/devicetree/bindings/mfd/stm32-timers.txt @@ -23,6 +23,7 @@ Optional parameters: Optional subnodes: - pwm: See ../pwm/pwm-stm32.txt - timer: See ../iio/timer/stm32-timer-trigger.txt +- counter: See ../counter/stm32-timer-cnt.txt Example: timers@40010000 { @@ -43,4 +44,10 @@ Example: compatible = "st,stm32-timer-trigger"; reg = <0>; }; + + counter { + compatible = "st,stm32-timer-counter"; + pinctrl-names = "default"; + pinctrl-0 = <&tim1_in_pins>; + }; }; -- 2.17.0 From mboxrd@z Thu Jan 1 00:00:00 1970 From: vilhelm.gray@gmail.com (William Breathitt Gray) Date: Wed, 16 May 2018 13:51:55 -0400 Subject: [PATCH v6 6/9] dt-bindings: counter: Document stm32 quadrature encoder In-Reply-To: References: Message-ID: To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org From: Benjamin Gaignard Add bindings for STM32 Timer quadrature encoder. It is a sub-node of STM32 Timer which implement the counter part of the hardware. Cc: Rob Herring Cc: Mark Rutland Signed-off-by: Benjamin Gaignard Signed-off-by: William Breathitt Gray --- .../bindings/counter/stm32-timer-cnt.txt | 26 +++++++++++++++++++ .../devicetree/bindings/mfd/stm32-timers.txt | 7 +++++ 2 files changed, 33 insertions(+) create mode 100644 Documentation/devicetree/bindings/counter/stm32-timer-cnt.txt diff --git a/Documentation/devicetree/bindings/counter/stm32-timer-cnt.txt b/Documentation/devicetree/bindings/counter/stm32-timer-cnt.txt new file mode 100644 index 000000000000..377728128bef --- /dev/null +++ b/Documentation/devicetree/bindings/counter/stm32-timer-cnt.txt @@ -0,0 +1,26 @@ +STMicroelectronics STM32 Timer quadrature encoder + +STM32 Timer provides quadrature encoder counter mode to detect +angular position and direction of rotary elements, +from IN1 and IN2 input signals. + +Must be a sub-node of an STM32 Timer device tree node. +See ../mfd/stm32-timers.txt for details about the parent node. + +Required properties: +- compatible: Must be "st,stm32-timer-counter". +- pinctrl-names: Set to "default". +- pinctrl-0: List of phandles pointing to pin configuration nodes, + to set IN1/IN2 pins in mode of operation for Low-Power + Timer input on external pin. + +Example: + timers at 40010000 { + compatible = "st,stm32-timers"; + ... + counter { + compatible = "st,stm32-timer-counter"; + pinctrl-names = "default"; + pinctrl-0 = <&tim1_in_pins>; + }; + }; diff --git a/Documentation/devicetree/bindings/mfd/stm32-timers.txt b/Documentation/devicetree/bindings/mfd/stm32-timers.txt index 1db6e0057a63..ff9c14ada30b 100644 --- a/Documentation/devicetree/bindings/mfd/stm32-timers.txt +++ b/Documentation/devicetree/bindings/mfd/stm32-timers.txt @@ -23,6 +23,7 @@ Optional parameters: Optional subnodes: - pwm: See ../pwm/pwm-stm32.txt - timer: See ../iio/timer/stm32-timer-trigger.txt +- counter: See ../counter/stm32-timer-cnt.txt Example: timers at 40010000 { @@ -43,4 +44,10 @@ Example: compatible = "st,stm32-timer-trigger"; reg = <0>; }; + + counter { + compatible = "st,stm32-timer-counter"; + pinctrl-names = "default"; + pinctrl-0 = <&tim1_in_pins>; + }; }; -- 2.17.0