Linux-ARM-Kernel Archive on lore.kernel.org
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* [PATCH v2 0/3] Add PM support to STM32 LP Timer drivers
@ 2019-02-11 16:11 Fabrice Gasnier
  2019-02-11 16:12 ` [PATCH v2 1/3] dt-bindings: pwm-stm32-lp: document pinctrl sleep state Fabrice Gasnier
                   ` (2 more replies)
  0 siblings, 3 replies; 8+ messages in thread
From: Fabrice Gasnier @ 2019-02-11 16:11 UTC (permalink / raw)
  To: thierry.reding, robh+dt
  Cc: mark.rutland, devicetree, alexandre.torgue, tduszyns,
	linux-kernel, linux-pwm, mcoquelin.stm32, u.kleine-koenig,
	fabrice.gasnier, linux-stm32, linux-arm-kernel

This patch series adds power management support for STM32 LP Timer:
- PWM driver
- Document the pinctrl states for sleep mode

It also adds device link between the PWM consumer and the PWM provider.
This allows proper sequencing for suspend/resume (e.g. user will likely
do a pwm_disable() before the PWM provider suspend executes), see [1].

[1] https://lkml.org/lkml/2019/2/5/770

---
Changes in v2:
- Don't disable PWM channel in PWM provider: rather refuse to suspend
  and report an error as suggested by Uwe and Thierry.
- Add patch 3/3 to propose device link addition.
- No updates for STM32 LP Timer IIO driver. Patches can be send separately.

Fabrice Gasnier (3):
  dt-bindings: pwm-stm32-lp: document pinctrl sleep state
  pwm: stm32-lp: Add power management support
  pwm: core: add consumer device link

 .../devicetree/bindings/pwm/pwm-stm32-lp.txt       |  9 +++++---
 drivers/pwm/core.c                                 | 13 +++++++++--
 drivers/pwm/pwm-stm32-lp.c                         | 25 ++++++++++++++++++++++
 3 files changed, 42 insertions(+), 5 deletions(-)

-- 
1.9.1


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-- links below jump to the message on this page --
2019-02-11 16:11 [PATCH v2 0/3] Add PM support to STM32 LP Timer drivers Fabrice Gasnier
2019-02-11 16:12 ` [PATCH v2 1/3] dt-bindings: pwm-stm32-lp: document pinctrl sleep state Fabrice Gasnier
2019-02-11 16:12 ` [PATCH v2 2/3] pwm: stm32-lp: Add power management support Fabrice Gasnier
2019-02-11 16:12 ` [PATCH v2 3/3] pwm: core: add consumer device link Fabrice Gasnier
2019-02-11 19:06   ` Uwe Kleine-König
2019-02-12  8:31     ` Fabrice Gasnier
2019-02-12  9:03       ` Uwe Kleine-König
2019-02-13 10:51         ` Fabrice Gasnier

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