Re: [PATCH 2/7] arm64: dts: qcom: Add Monaco Monza SoM

[Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>]

On 3/9/26 4:24 PM, Srinivas Kandagatla wrote:
> From: Loic Poulain <loic.poulain@oss.qualcomm.com>
> 
> The Monaco Monza SoM is a compact computing module that integrates a
> Monaco/QCS8300 System on Chip (SoC), along with essential components
> optimized for IoT applications. It is designed to be mounted on
> carrier boards, enabling the development of complete embedded systems.
> 
> The following components are described:
> - Fixed S2S 1.8V rail
> - PMM8654AU RPMh regulators (PMIC A and PMIC C)
> - Display subsystem/phy supplies (DSI, DP)
> - Enable GPU, GPI DMA, IRIS
> - PCIe Gen4 for both controllers and PHY supply hookups
> - QUPv3 firmware declarations
> - REFGEN always-on workaround for USB2 HS PHY
> - Remoteproc firmware names for ADSP, CDSP and GPDSP
> - Ethernet SERDES supplies
> - USB HS/SS PHY regulators
> - On-SoM eMMC
> 
> Signed-off-by: Loic Poulain <loic.poulain@oss.qualcomm.com>
> Co-developed-by: Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com>
> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com>
> ---

[...]

> +/* PCIe0 Gen4 x2 */
> +&pcie0 {
> +	iommu-map = <0x0 &pcie_smmu 0x0000 0x1>,
> +		    <0x100 &pcie_smmu 0x0001 0x1>,
> +		    <0x200 &pcie_smmu 0x0007 0x1>,
> +		    <0x208 &pcie_smmu 0x0002 0x1>,
> +		    <0x210 &pcie_smmu 0x0003 0x1>,
> +		    <0x218 &pcie_smmu 0x0004 0x1>,
> +		    <0x300 &pcie_smmu 0x0005 0x1>,
> +		    <0x400 &pcie_smmu 0x0006 0x1>;
> +	num-lanes = <2>;

This is already set in monaco.dtsi

[...]

> +/* PCIe1 Gen4 x4 */
> +&pcie1 {
> +	num-lanes = <4>;

likewise

[...]

> +&qupv3_id_0 {
> +	firmware-name = "qcom/qcs8300/qupv3fw.elf";
> +	status = "okay";

Other nodes in this file have a \n before 'status', it'd be neat to have
one everywhere

> +};
> +
> +&qupv3_id_1 {
> +	firmware-name = "qcom/qcs8300/qupv3fw.elf";
> +	status = "okay";
> +};
> +
> +/* There is a HW/FW issue preventing proper REFGEN hardware voting
> + * for the USB2 HS PHY. As a workaround, we force REFGEN to stay
> + * always‑on in software, matching initial bootloader config.
> + */
> +&refgen{

Please add a space before '{'

[...]

> +/* OnSom eMMC */
> +&sdhc_1 {

This one is out-of-place, alphabetically - please move it up

Konrad