On Apple SoCs the ADMAC peripheral shares a reset line with another
audio-related peripheral which is the MCA.
On the side of the MCA, the reset is described in binding (staged in
broonie-sound/for-6.1) and in the soon-to-be-merged series adding new
nodes to t8103/t600x SoC device trees [1]. The staged MCA driver does
make use of the reset, knowing it's a shared one.
This series catches up on the ADMAC side, adds the reset to the binding
and describes it in the t8103/t600x DTs (on top of [1]). It also pulls
the shared reset from the driver.
Since [1] already includes another ADMAC binding change and will
probably be fully merged into Hector's asahi-soc tree, I propose the
binding change here takes the same route. Leaving patches #3 and #4 to
go into dmaengine.
[1] https://lore.kernel.org/asahi/[email protected]/T/#t
Martin Povišer (4):
dt-bindings: dma: apple,admac: Add reset
arm64: dts: apple: Add ADMAC resets on t8103/t600x
dmaengine: apple-admac: Do not use devres for IRQs
dmaengine: apple-admac: Trigger shared reset
--
2.33.0
On 18/09/2022 18.58, Martin Povišer wrote:
> On Apple SoCs the ADMAC peripheral shares a reset line with another
> audio-related peripheral which is the MCA.
>
> On the side of the MCA, the reset is described in binding (staged in
> broonie-sound/for-6.1) and in the soon-to-be-merged series adding new
> nodes to t8103/t600x SoC device trees [1]. The staged MCA driver does
> make use of the reset, knowing it's a shared one.
>
> This series catches up on the ADMAC side, adds the reset to the binding
> and describes it in the t8103/t600x DTs (on top of [1]). It also pulls
> the shared reset from the driver.
>
> Since [1] already includes another ADMAC binding change and will
> probably be fully merged into Hector's asahi-soc tree, I propose the
> binding change here takes the same route. Leaving patches #3 and #4 to
> go into dmaengine.
>
> [1] https://lore.kernel.org/asahi/[email protected]/T/#t
>
> Martin Povišer (4):
> dt-bindings: dma: apple,admac: Add reset
> arm64: dts: apple: Add ADMAC resets on t8103/t600x
> dmaengine: apple-admac: Do not use devres for IRQs
> dmaengine: apple-admac: Trigger shared reset
>
Applied patches #1-#2 to asahi-soc/dt, thanks!
- Hector