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

On Thu, Aug 28, 2025 at 12:05:21PM +0530, Sushrut Shree Trivedi wrote:

On 8/27/2025 7:05 AM, Dmitry Baryshkov wrote:

quoted

On Tue, Aug 26, 2025 at 11:51:02PM +0530, Wasim Nazir wrote:

quoted

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 <redacted>
Signed-off-by: Sushrut Shree Trivedi <redacted>
Co-developed-by: Nirmesh Kumar Singh <redacted>
Signed-off-by: Nirmesh Kumar Singh <redacted>
Co-developed-by: Krishna Kurapati <redacted>
Signed-off-by: Krishna Kurapati <redacted>
Co-developed-by: Mohd Ayaan Anwar <redacted>
Signed-off-by: Mohd Ayaan Anwar <redacted>
Co-developed-by: Dikshita Agarwal <redacted>
Signed-off-by: Dikshita Agarwal <redacted>
Co-developed-by: Monish Chunara <redacted>
Signed-off-by: Monish Chunara <redacted>
Co-developed-by: Vishal Kumar Pal <redacted>
Signed-off-by: Vishal Kumar Pal <redacted>
Signed-off-by: Wasim Nazir <redacted>
---
  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