Re: [PATCH v6 01/10] dt-bindings: dma: nvidia,tegra186-gpc-dma: Make reset optional

[Thierry Reding]

On Tue, Mar 31, 2026 at 03:52:54PM +0530, Akhil R wrote:
> On Tegra264, GPCDMA reset control is not exposed to Linux and is handled
> by the boot firmware.
> 
> Although reset was not exposed in Tegra234 as well, the firmware supported
> a dummy reset which just returns success on reset without doing an actual
> reset. This is also not supported in Tegra264 BPMP. Therefore mark 'reset'
> and 'reset-names' properties as required only for devices prior to
> Tegra264.
> 
> This also necessitates that the Tegra264 compatible be standalone and
> cannot have the fallback compatible of Tegra186. Since there is no
> functional impact, we keep reset as required for Tegra234 to avoid
> breaking the ABI.
> 
> Fixes: bb8c97571db5 ("dt-bindings: dma: Add Tegra264 compatible string")
> Signed-off-by: Akhil R <akhilrajeev@xxxxxxxxxx>
> Acked-by: Rob Herring (Arm) <robh@xxxxxxxxxx>
> ---
>  .../bindings/dma/nvidia,tegra186-gpc-dma.yaml | 23 +++++++++++++------
>  1 file changed, 16 insertions(+), 7 deletions(-)

Acked-by: Thierry Reding <treding@xxxxxxxxxx>

Attachment: signature.asc
Description: PGP signature