UPSTREAM: mb/intel/tglrvp: Add interrupt _CRS under CREC scope

Interrupt _CRS is missing under CREC scope. TGLRVP U/Y has GPP_A15
assigned to MECC_HPD2 as EC_SYNC_IRQ. Configure this GPP_A15 GPIO as
active low and level interruptible for EC sync interrupt configuration.

BUG=None
TEST=Booted to kernel and verified EC_SYNC_IRQ in the scope of CREC
current resource settings.

Signed-off-by: Furquan Shaikh <furquan@google.com>
Original-Commit-Id: 90883287b5db3c022bf45d98a00f88b4b9b7c055
Original-Signed-off-by: John Zhao <john.zhao@intel.com>
Original-Change-Id: Idfe4d4e800866805ee8d758028ac7ddf4b259faa
Original-Reviewed-on: https://review.coreboot.org/c/coreboot/+/44103
Original-Reviewed-by: Vijay P Hiremath <vijay.p.hiremath@intel.com>
Original-Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Original-Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Change-Id: Iaf2c549ac96bf822d67b88a98c94a05fff712a0a
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/coreboot/+/2354974
Reviewed-by: Patrick Georgi <pgeorgi@chromium.org>
Tested-by: Patrick Georgi <pgeorgi@chromium.org>
Commit-Queue: Patrick Georgi <pgeorgi@chromium.org>
diff --git a/src/mainboard/intel/tglrvp/variants/baseboard/include/baseboard/ec.h b/src/mainboard/intel/tglrvp/variants/baseboard/include/baseboard/ec.h
index c018299..4303faf 100644
--- a/src/mainboard/intel/tglrvp/variants/baseboard/include/baseboard/ec.h
+++ b/src/mainboard/intel/tglrvp/variants/baseboard/include/baseboard/ec.h
@@ -56,6 +56,9 @@
 /* Enable EC backed ALS device in ACPI */
 #define EC_ENABLE_ALS_DEVICE
 
+/* Enable EC sync interrupt, EC_SYNC_IRQ is defined in baseboard/gpio.h */
+#define EC_ENABLE_SYNC_IRQ
+
 /* Enable EC backed PD MCU device in ACPI */
 #define EC_ENABLE_PD_MCU_DEVICE
 
diff --git a/src/mainboard/intel/tglrvp/variants/baseboard/include/baseboard/gpio.h b/src/mainboard/intel/tglrvp/variants/baseboard/include/baseboard/gpio.h
index de0adf6..b61276c 100644
--- a/src/mainboard/intel/tglrvp/variants/baseboard/include/baseboard/gpio.h
+++ b/src/mainboard/intel/tglrvp/variants/baseboard/include/baseboard/gpio.h
@@ -12,4 +12,7 @@
 /* EC wake is LAN_WAKE# which is a special DeepSX wake pin */
 #define GPE_EC_WAKE	GPE0_LAN_WAK
 
+/* EC sync IRQ */
+#define EC_SYNC_IRQ	GPP_A15_IRQ
+
 #endif /* __BASEBOARD_GPIO_H__ */
diff --git a/src/mainboard/intel/tglrvp/variants/tglrvp_up3/gpio.c b/src/mainboard/intel/tglrvp/variants/tglrvp_up3/gpio.c
index a3d9ffb..49946c8 100644
--- a/src/mainboard/intel/tglrvp/variants/tglrvp_up3/gpio.c
+++ b/src/mainboard/intel/tglrvp/variants/tglrvp_up3/gpio.c
@@ -55,6 +55,9 @@
 	PAD_CFG_NF(GPP_F4, NONE, DEEP, NF1),  /* CNV_RF_RST_L */
 	PAD_CFG_NF(GPP_F5, NONE, DEEP, NF3),  /* CNV_CLKREQ0 */
 
+	/* EC_SYNC_IRQ */
+	PAD_CFG_GPI_APIC(GPP_A15, NONE, PLTRST, LEVEL, INVERT), /* MECC_HPD2 */
+
 	PAD_CFG_GPO(GPP_H1, 1, DEEP), /* AUDIO_PWREN */
 };
 
diff --git a/src/mainboard/intel/tglrvp/variants/tglrvp_up4/gpio.c b/src/mainboard/intel/tglrvp/variants/tglrvp_up4/gpio.c
index 773ee4a..91bbe93 100644
--- a/src/mainboard/intel/tglrvp/variants/tglrvp_up4/gpio.c
+++ b/src/mainboard/intel/tglrvp/variants/tglrvp_up4/gpio.c
@@ -51,6 +51,9 @@
 	PAD_CFG_NF(GPP_D19, NONE, DEEP, NF1), /* I2S_MCLK1 */
 	PAD_CFG_NF(GPP_F8, NONE, DEEP, NF1),  /* I2S_MCLK2 */
 
+	/* EC_SYNC_IRQ */
+	PAD_CFG_GPI_APIC(GPP_A15, NONE, PLTRST, LEVEL, INVERT), /* MECC_HPD2 */
+
 	PAD_CFG_GPO(GPP_H1, 1, DEEP), /* AUDIO_PWREN */
 };