Re: [PATCH 3/4] arm64: dts: qcom: qcs6490-rb3gen2-industrial-mezzanine: Add QCC2072 Bluetooth M.2 overlay

[Yepuri Siddu]

On 6/30/2026 5:03 PM, Konrad Dybcio wrote:
> On 5/29/26 8:02 PM, Yepuri Siddu wrote:
> > Add a DTSO overlay for the M.2 E-key slot on the QCS6490 RB3 Gen2
> > industrial mezzanine board when populated with a QCC2072 Bluetooth
> > module.
> >
> > The overlay configures UART4 (gpio16-19) for Bluetooth communication
> > at up to 3.2 Mbps. Sleep pin states are defined for all four UART
> > lines to minimize power consumption when Bluetooth is inactive. Host
> > wakeup is handled via a GPIO interrupt on the RX line (gpio19), and
> > SW_CTRL is mapped to gpio86 for power sequencing.
> >
> > Disable UART7 in the base industrial mezzanine overlay as it is
> > not used when the M.2 slot is populated.
> >
> > Signed-off-by: Yepuri Siddu <yepuri.siddu@xxxxxxxxxxxxxxxx>
> > ---
>
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QCC2072 is an M.2 E-key chip. As M.2 Power Sequencing changes are being 
upstreamed, we will reupdate our existing patches to align with M.2 
power sequencing approach.
This includes aligning the bindings, DT and also BT driver changes.

Thanks,
Siddu

> Konrad