mb/starlabs/starlite_adl: Configure GPIO interrupt for Virtual Button

Configure GPP_F15 to generate an IRQ, that is used by the Virtual
Button driver to report whether the tablet is docked or undocked to
the OS.

Change-Id: I0815da09bd7ffd3926622e10df6a06ab5593dc2d
Signed-off-by: Sean Rhodes <sean@starlabs.systems>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/83880
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Maxim <max.senia.poliak@gmail.com>

src/mainboard/starlabs/starlite_adl/acpi/mainboard.asl

@@ -3,3 +3,11 @@
 Scope (\_SB) {
 	#include "sleep.asl"
 }
+
+Scope (_GPE)
+{
+	Method (_L0F, 0, NotSerialized)
+	{
+		\_SB.PCI0.LPCB.EC.VBTN.UPDK()
+	}
+}

src/mainboard/starlabs/starlite_adl/variants/mk_v/devicetree.cb

@@ -22,9 +22,9 @@ chip soc/intel/alderlake
 	register "pch_slp_a_min_assertion_width"	= "3"			# 2s
 
 	# PM Util
-	register "pmc_gpe0_dw0"			= "GPP_A"
-	register "pmc_gpe0_dw1"			= "GPP_R"
-	register "pmc_gpe0_dw2"			= "GPD"
+	register "pmc_gpe0_dw0"			= "PMC_GPP_F"
+	register "pmc_gpe0_dw1"			= "GPP_A"
+	register "pmc_gpe0_dw2"			= "GPP_B"
 
 	device domain 0 on
 		device ref igpu		on

src/mainboard/starlabs/starlite_adl/variants/mk_v/gpio.c

@@ -319,7 +319,7 @@ const struct pad_config gpio_table[] = {
 	/* F14:		Not Connected					*/
 	PAD_NC(GPP_F14, NONE),
 	/* F15:		Keyboard Detect					*/
-	PAD_NC(GPP_F15, NONE),
+	PAD_CFG_GPI_SMI_LOW(GPP_F15, NONE, DEEP, EDGE_BOTH),
 	/* F16:		Not Connected					*/
 	PAD_NC(GPP_F16, NONE),
 	/* F17:		Touch Panel Reset				*/