dmaengine: sh: rz-dmac: Add system sleep PM support

[PATCH 0/4] dmaengine: sh: rz-dmac: Add system sleep PM support

Posted by Tommaso Merciai 4 days, 11 hours ago

Dear All,

This patch series improves runtime PM support and adds system sleep PM ops for
supporting deep sleep in the rz-dmac driver.

It also refactors the driver to use the newly added devm_pm_runtime_enable()
and rz_dmac_reset_control_assert() functions for reset cleanup handling.

Thanks & Regards,
Tommaso

Tommaso Merciai (4):
  dmaengine: sh: rz-dmac: Use devm_pm_runtime_enable()
  dmaengine: sh: rz-dmac: Use devm_add_action_or_reset()
  dmaengine: sh: rz-dmac: Refactor runtime PM handling
  dmaengine: sh: rz-dmac: Add system sleep power management

 drivers/dma/sh/rz-dmac.c | 82 ++++++++++++++++++++++++++++++++++------
 1 file changed, 70 insertions(+), 12 deletions(-)

-- 
2.43.0

Re: [PATCH 0/4] dmaengine: sh: rz-dmac: Add system sleep PM support

Posted by Tommaso Merciai 4 days, 10 hours ago

On Fri, Sep 05, 2025 at 04:44:16PM +0200, Tommaso Merciai wrote:
> Dear All,
> 
> This patch series improves runtime PM support and adds system sleep PM ops for
> supporting deep sleep in the rz-dmac driver.
> 
> It also refactors the driver to use the newly added devm_pm_runtime_enable()
> and rz_dmac_reset_control_assert() functions for reset cleanup handling.

Series not tested yet on RZ/G2L or any stress test.

Thanks,
Tommaso

> 
> Thanks & Regards,
> Tommaso
> 
> Tommaso Merciai (4):
>   dmaengine: sh: rz-dmac: Use devm_pm_runtime_enable()
>   dmaengine: sh: rz-dmac: Use devm_add_action_or_reset()
>   dmaengine: sh: rz-dmac: Refactor runtime PM handling
>   dmaengine: sh: rz-dmac: Add system sleep power management
> 
>  drivers/dma/sh/rz-dmac.c | 82 ++++++++++++++++++++++++++++++++++------
>  1 file changed, 70 insertions(+), 12 deletions(-)
> 
> -- 
> 2.43.0
>