Re: [PATCH 3/5] arm64: dts: qcom: lemans-evk: Extend peripheral and subsystem support

[Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>]

On Thu, Aug 28, 2025 at 12:05:21PM +0530, Sushrut Shree Trivedi wrote:
> 
> On 8/27/2025 7:05 AM, Dmitry Baryshkov wrote:
> > On Tue, Aug 26, 2025 at 11:51:02PM +0530, Wasim Nazir wrote:
> > > Enhance the Qualcomm Lemans EVK board file to support essential
> > > peripherals and improve overall hardware capabilities, as
> > > outlined below:
> > >    - Enable GPI (Generic Peripheral Interface) DMA-0/1/2 and QUPv3-0/2
> > >      controllers to facilitate DMA and peripheral communication.
> > >    - Add support for PCIe-0/1, including required regulators and PHYs,
> > >      to enable high-speed external device connectivity.
> > >    - Integrate the TCA9534 I/O expander via I2C to provide 8 additional
> > >      GPIO lines for extended I/O functionality.
> > >    - Enable the USB0 controller in device mode to support USB peripheral
> > >      operations.
> > >    - Activate remoteproc subsystems for supported DSPs such as Audio DSP,
> > >      Compute DSP-0/1 and Generic DSP-0/1, along with their corresponding
> > >      firmware.
> > >    - Configure nvmem-layout on the I2C EEPROM to store data for Ethernet
> > >      and other consumers.
> > >    - Enable the QCA8081 2.5G Ethernet PHY on port-0 and expose the
> > >      Ethernet MAC address via nvmem for network configuration.
> > >      It depends on CONFIG_QCA808X_PHY to use QCA8081 PHY.
> > >    - Add support for the Iris video decoder, including the required
> > >      firmware, to enable video decoding capabilities.
> > >    - Enable SD-card slot on SDHC.
> > > 
> > > Co-developed-by: Viken Dadhaniya <viken.dadhaniya@oss.qualcomm.com>
> > > Signed-off-by: Viken Dadhaniya <viken.dadhaniya@oss.qualcomm.com>
> > > Co-developed-by: Sushrut Shree Trivedi <quic_sushruts@quicinc.com>
> > > Signed-off-by: Sushrut Shree Trivedi <quic_sushruts@quicinc.com>
> > > Co-developed-by: Nirmesh Kumar Singh <quic_nkumarsi@quicinc.com>
> > > Signed-off-by: Nirmesh Kumar Singh <quic_nkumarsi@quicinc.com>
> > > Co-developed-by: Krishna Kurapati <krishna.kurapati@oss.qualcomm.com>
> > > Signed-off-by: Krishna Kurapati <krishna.kurapati@oss.qualcomm.com>
> > > Co-developed-by: Mohd Ayaan Anwar <quic_mohdayaa@quicinc.com>
> > > Signed-off-by: Mohd Ayaan Anwar <quic_mohdayaa@quicinc.com>
> > > Co-developed-by: Dikshita Agarwal <quic_dikshita@quicinc.com>
> > > Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com>
> > > Co-developed-by: Monish Chunara <quic_mchunara@quicinc.com>
> > > Signed-off-by: Monish Chunara <quic_mchunara@quicinc.com>
> > > Co-developed-by: Vishal Kumar Pal <quic_vispal@quicinc.com>
> > > Signed-off-by: Vishal Kumar Pal <quic_vispal@quicinc.com>
> > > Signed-off-by: Wasim Nazir <wasim.nazir@oss.qualcomm.com>
> > > ---
> > >   arch/arm64/boot/dts/qcom/lemans-evk.dts | 387 ++++++++++++++++++++++++++++++++
> > >   1 file changed, 387 insertions(+)
> > > 
> > >   	status = "okay";
> > >   };
> > > @@ -323,14 +505,196 @@ &mdss0_dp1_phy {
> > >   	status = "okay";
> > >   };
> > > +&pcie0 {
> > > +	perst-gpios = <&tlmm 2 GPIO_ACTIVE_LOW>;
> > > +	wake-gpios = <&tlmm 0 GPIO_ACTIVE_HIGH>;
> > I think Mani has been asking lately to define these GPIOs inside the
> > port rather than in the host controller.
> 
> Hi Dmitry,
> 
> For moving these to the port requires changes in the sa8775p.dtsi to change
> phys property from controller node to port node.
> 
> Mani is asking to add these for newer platforms like QCS8300 not for
> existing one's.

Ack, thanks for the explanation.

The rest of the quetions are unanswered.

-- 
With best wishes
Dmitry