linux-kernel - [PATCH 0/8] Add STM32 LPTimer: PWM, trigger and counter

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Message-ID: <1497628726-7563-1-git-send-email-fabrice.gasnier@st.com>
Date:   Fri, 16 Jun 2017 17:58:38 +0200
From:   Fabrice Gasnier <fabrice.gasnier@...com>
To:     <lee.jones@...aro.org>, <benjamin.gaignard@...aro.org>,
        <jic23@...nel.org>, <thierry.reding@...il.com>,
        <robh+dt@...nel.org>
CC:     <mark.rutland@....com>, <alexandre.torgue@...com>,
        <mcoquelin.stm32@...il.com>, <fabrice.gasnier@...com>,
        <benjamin.gaignard@...com>, <linux-iio@...r.kernel.org>,
        <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <linux-pwm@...r.kernel.org>
Subject: [PATCH 0/8] Add STM32 LPTimer: PWM, trigger and counter

This series adds support for Low Power Timer that can be found on
some STM32 devices.

STM32 LPTimer (LPTIM) is a 16-bit timer that provides several
functionalities. This series adds support for following features:
- PWM output (with programmable prescaler, configurable polarity)
- Trigger source for STM32 ADC or DAC (LPTIM_OUT)
- Quadrature encoder and counter

The MFD core is used to manage common resources (clock, register,
reset) and to detect encoder feature. "stm32_lptimer" structure is
provided to its sub-nodes to share those information:
- PWM driver is used to implement single PWM channel
- IIO trigger
- IIO quadrature encoder and counter

Fabrice Gasnier (8):
  dt-bindings: mfd: Add STM32 LPTimer binding
  mfd: Add STM32 LPTimer driver
  dt-bindings: pwm: Add STM32 LPTimer PWM binding
  pwm: Add STM32 LPTimer PWM driver
  dt-bindings: iio: Add STM32 LPTimer trigger binding
  iio: trigger: Add STM32 LPTimer trigger driver
  dt-bindings: iio: Add STM32 LPTimer quadrature encoder and counter
  iio: counter: Add support for STM32 LPTimer

 .../ABI/testing/sysfs-bus-iio-lptimer-stm32        |  57 +++
 .../bindings/iio/counter/stm32-lptimer-cnt.txt     |  25 ++
 .../bindings/iio/timer/stm32-lptimer-trigger.txt   |  21 ++
 .../devicetree/bindings/mfd/stm32-lptimer.txt      |  51 +++
 .../devicetree/bindings/pwm/pwm-stm32-lp.txt       |  24 ++
 drivers/iio/counter/Kconfig                        |   9 +
 drivers/iio/counter/Makefile                       |   1 +
 drivers/iio/counter/stm32-lptimer-cnt.c            | 382 +++++++++++++++++++++
 drivers/iio/trigger/Kconfig                        |  11 +
 drivers/iio/trigger/Makefile                       |   1 +
 drivers/iio/trigger/stm32-lptimer-trigger.c        | 110 ++++++
 drivers/mfd/Kconfig                                |  15 +
 drivers/mfd/Makefile                               |   1 +
 drivers/mfd/stm32-lptimer.c                        | 110 ++++++
 drivers/pwm/Kconfig                                |  10 +
 drivers/pwm/Makefile                               |   1 +
 drivers/pwm/pwm-stm32-lp.c                         | 216 ++++++++++++
 include/linux/iio/timer/stm32-lptim-trigger.h      |  24 ++
 include/linux/mfd/stm32-lptimer.h                  |  55 +++
 19 files changed, 1124 insertions(+)
 create mode 100644 Documentation/ABI/testing/sysfs-bus-iio-lptimer-stm32
 create mode 100644 Documentation/devicetree/bindings/iio/counter/stm32-lptimer-cnt.txt
 create mode 100644 Documentation/devicetree/bindings/iio/timer/stm32-lptimer-trigger.txt
 create mode 100644 Documentation/devicetree/bindings/mfd/stm32-lptimer.txt
 create mode 100644 Documentation/devicetree/bindings/pwm/pwm-stm32-lp.txt
 create mode 100644 drivers/iio/counter/stm32-lptimer-cnt.c
 create mode 100644 drivers/iio/trigger/stm32-lptimer-trigger.c
 create mode 100644 drivers/mfd/stm32-lptimer.c
 create mode 100644 drivers/pwm/pwm-stm32-lp.c
 create mode 100644 include/linux/iio/timer/stm32-lptim-trigger.h
 create mode 100644 include/linux/mfd/stm32-lptimer.h

-- 
1.9.1