Messages in this thread | | | From | Fabrice Gasnier <> | Subject | [PATCH v5 0/3] Add PM support to STM32 LP Timer drivers | Date | Wed, 20 Feb 2019 14:07:45 +0100 |
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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 v5: - improve a warning message, fix a style issue.
Changes in v4: - improve error handling when adding the PWM consumer device link.
Changes in v3: - Move the device_link_add() call to of_pwm_get() as discussed with Uwe.
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 | 50 ++++++++++++++++++++-- drivers/pwm/pwm-stm32-lp.c | 25 +++++++++++ include/linux/pwm.h | 6 ++- 4 files changed, 82 insertions(+), 8 deletions(-)
-- 2.7.4
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