Re: [RFC,v14 4/5] arm64: tegra: Add PCIe port node with PCIe WAKE# for C1 controller

[Thierry Reding]

On Wed, Feb 08, 2023 at 04:46:44PM +0530, Manikanta Maddireddy wrote:
> Add PCIe port node under the PCIe controller-1 device tree node to support
> PCIe WAKE# interrupt for WiFi.
> 
> Signed-off-by: Manikanta Maddireddy <mmaddireddy@xxxxxxxxxx>
> ---
> 
> Changes in v14:
> New patch in the series to support PCIe WAKE# in NVIDIA Jetson AGX Orin.
> 
>  .../dts/nvidia/tegra234-p3737-0000+p3701-0000.dts     | 11 +++++++++++
>  1 file changed, 11 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/nvidia/tegra234-p3737-0000+p3701-0000.dts b/arch/arm64/boot/dts/nvidia/tegra234-p3737-0000+p3701-0000.dts
> index 8a9747855d6b..9c89be263141 100644
> --- a/arch/arm64/boot/dts/nvidia/tegra234-p3737-0000+p3701-0000.dts
> +++ b/arch/arm64/boot/dts/nvidia/tegra234-p3737-0000+p3701-0000.dts
> @@ -2147,6 +2147,17 @@ pcie@14100000 {
>  
>  			phys = <&p2u_hsio_3>;
>  			phy-names = "p2u-0";
> +
> +			pci@0,0 {
> +				reg = <0x0000 0 0 0 0>;
> +				#address-cells = <3>;
> +				#size-cells = <2>;
> +				ranges;
> +
> +				interrupt-parent = <&gpio>;
> +				interrupts = <TEGRA234_MAIN_GPIO(L, 2) IRQ_TYPE_LEVEL_LOW>;
> +				interrupt-names = "wakeup";
> +			};

Don't we need to wire this to the PMC interrupt controller and the wake
event corresponding to the L2 GPIO? Otherwise none of the wake logic in
PMC will get invoked.

Thierry

Attachment: signature.asc
Description: PGP signature