Re: [PATCH] dt-bindings: mailbox: qcom-ipcc: Document Nord IPCC

Shawn Guo
2026-04-21T07:43:28Z

On Mon, Apr 20, 2026 at 10:24:24AM +0200, Krzysztof Kozlowski wrote:
> On 20/04/2026 10:18, Konrad Dybcio wrote:
> > On 4/20/26 10:16 AM, Manivannan Sadhasivam wrote:
> >> On Mon, Apr 20, 2026 at 12:01:41PM +0800, Shawn Guo wrote:
> >>> From: Deepti Jaggi <deepti.jaggi@oss.qualcomm.com>
> >>>
> >>> Document Inter-Processor Communication Controller on Qualcomm Nord SoC
> >>> with a fallback on qcom,ipcc.
> >>>
> >>> Signed-off-by: Deepti Jaggi <deepti.jaggi@oss.qualcomm.com>
> >>> Signed-off-by: Shawn Guo <shengchao.guo@oss.qualcomm.com>
> >>> ---
> >>> Documentation/devicetree/bindings/mailbox/qcom-ipcc.yaml | 1 +
> >>> 1 file changed, 1 insertion(+)
> >>>
> >>> diff --git a/Documentation/devicetree/bindings/mailbox/qcom-ipcc.yaml b/Documentation/devicetree/bindings/mailbox/qcom-ipcc.yaml
> >>> index f5c584cf2146..0a86230a2b18 100644
> >>> --- a/Documentation/devicetree/bindings/mailbox/qcom-ipcc.yaml
> >>> +++ b/Documentation/devicetree/bindings/mailbox/qcom-ipcc.yaml
> >>> @@ -28,6 +28,7 @@ properties:
> >>> - qcom,glymur-ipcc
> >>> - qcom,kaanapali-ipcc
> >>> - qcom,milos-ipcc
> >>> + - qcom,nord-ipcc
> >>
> >> What is the difference between this and the existing 'sa8775p' compatible? Are
> >> they both representing the same SoC series?
> >
> > Nord is a gen newer
>
> This should be explained somewhere, e.g. in board/soc bindings or SoC ID
> bindings. None of these are posted, so most of the patches being posted
> could receive that comment - what is the difference and why commit msg
> explains nothing.

Indeed! I should have posted SoC ID change [1] first to introduce Nord
SoC.

Shawn

[1] https://lore.kernel.org/all/20260421040231.1256998-1-shengchao.guo@oss.qualcomm.com/