Re: [PATCH 08/14] dmaengine: ti: omap-dma: Add device tree match data and use it for cpu_pm

Vinod Koul
2019-12-23T07:44:04Z

On 16-12-19, 16:19, Tony Lindgren wrote:
> With old DMA code disabled for handling DMA requests for device tree based
> SoCs, we can move omap3 specific context save and restore to the dmaengine
> driver.
>
> Let's do this by adding cpu_pm notifier handling to save and restore context,
> and enable it based on device tree match data. This way we can use the match
> data later to configure more SoC specific features later on too.
>
> Note that we only clear the channels in use while the platform code also
> clears reserved channels 0 and 1 on high-security SoCs. Based on testing
> on n900, this is not needed though and the system idles just fine.
>
> With the dmaengine driver handling context save and restore, we must now
> remove the old custom calls for context save and restore.

Acked-by: Vinod Koul <vkoul@kernel.org>

--
~Vinod