| From: |
| Fabrice Gasnier <fabrice.gasnier-AT-st.com> |
| To: |
| <lee.jones-AT-linaro.org>, <benjamin.gaignard-AT-linaro.org>, <jic23-AT-kernel.org>, <thierry.reding-AT-gmail.com>, <robh+dt-AT-kernel.org> |
| Subject: |
| [RESEND PATCH v3 0/9] Add STM32 LPTimer: PWM, trigger and counter |
| Date: |
| Mon, 28 Aug 2017 12:04:05 +0200 |
| Message-ID: |
| <1503914654-19963-1-git-send-email-fabrice.gasnier@st.com> |
| Cc: |
| <mark.rutland-AT-arm.com>, <alexandre.torgue-AT-st.com>, <mcoquelin.stm32-AT-gmail.com>, <fabrice.gasnier-AT-st.com>, <benjamin.gaignard-AT-st.com>, <linux-iio-AT-vger.kernel.org>, <devicetree-AT-vger.kernel.org>, <linux-arm-kernel-AT-lists.infradead.org>, <linux-kernel-AT-vger.kernel.org>, <linux-pwm-AT-vger.kernel.org>, <vilhelm.gray-AT-gmail.com> |
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 map)
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
---
Resend v3 with collected Acks
Changes in v3:
- I sent this v3 with various changes, but still need to discuss ABI
for counter driver (no change on this in v3).
- Remarks for Rob on dt-bindings
- Add validate_device in Trigger driver
- Update PWM driver after Thierry's comments
- Additional patch for STM32 ADC trigger
Changes in v2:
- Various remarks from Lee, on MFD part, extended to the full series,
such as: clock name, use "Low-Power Timer", file headers, dt-bindings
props descriptions, fix dt example.
Fabrice Gasnier (9):
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
iio: adc: stm32: add support for lptimer triggers
.../ABI/testing/sysfs-bus-iio-lptimer-stm32 | 57 +++
.../bindings/iio/counter/stm32-lptimer-cnt.txt | 27 ++
.../bindings/iio/timer/stm32-lptimer-trigger.txt | 23 ++
.../devicetree/bindings/mfd/stm32-lptimer.txt | 48 +++
.../devicetree/bindings/pwm/pwm-stm32-lp.txt | 24 ++
drivers/iio/adc/stm32-adc.c | 14 +-
drivers/iio/counter/Kconfig | 9 +
drivers/iio/counter/Makefile | 1 +
drivers/iio/counter/stm32-lptimer-cnt.c | 383 +++++++++++++++++++++
drivers/iio/trigger/Kconfig | 11 +
drivers/iio/trigger/Makefile | 1 +
drivers/iio/trigger/stm32-lptimer-trigger.c | 118 +++++++
drivers/mfd/Kconfig | 14 +
drivers/mfd/Makefile | 1 +
drivers/mfd/stm32-lptimer.c | 107 ++++++
drivers/pwm/Kconfig | 10 +
drivers/pwm/Makefile | 1 +
drivers/pwm/pwm-stm32-lp.c | 246 +++++++++++++
include/linux/iio/timer/stm32-lptim-trigger.h | 27 ++
include/linux/mfd/stm32-lptimer.h | 62 ++++
20 files changed, 1182 insertions(+), 2 deletions(-)
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
