Re: [PATCH] arm64: dts: qcom: shikra: Add BAM-DMUX support

[Konrad Dybcio]

On 6/11/26 10:55 AM, Stephan Gerhold wrote:
> On Thu, Jun 11, 2026 at 02:11:59PM +0530, Vishnu Santhosh wrote:
>> Add required nodes to enable the upstream BAM-DMUX WWAN driver on
>> Qualcomm Shikra SoC.
>>
>> The SMSM (Shared Memory State Machine) node provides the power
>> control signaling between the AP and modem for BAM-DMUX. The
>> BAM DMA controller node describes the A2 modem BAM hardware as a
>> standard DMA controller. The BAM-DMUX node references the DMA
>> channels and the pc/pc-ack interrupt lines from the modem SMSM
>> entry for power control signaling.
>>
>> Signed-off-by: Vishnu Santhosh <vishnu.santhosh@xxxxxxxxxxxxxxxx>
> 
> I'm quite surprised to see this 15+ years(?) old hardware block being
> brought back to a new SoC. Is Shikra not using IPA?

That's correct.

Konrad