Ezkinil: Add AOZ1380 for DB TYPEC C1

IOEX01 USB_C1_POWER_SWITCH_ID check which ppc chip is supported.
0 for NX20P3483UK
1 for AOZ1380DI
IOEX10 USB_C1_PPC_ILIM_3A_EN to set vbus source current limit 3A

BUG=b:159634750
BRANCH=none
TEST=make sure C1 ppc_config setup correctly on AOZ board.
     USB_C1_PPC_ILIM_3A_EN change level as plugging device in/out
     port 1.

Change-Id: I1211ba39a02b8e42488dc56f110bc736e66ff41d
Signed-off-by: Sue Chen <sue.chen@quanta.corp-partner.google.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2253489
Reviewed-by: Edward Hill <ecgh@chromium.org>
Commit-Queue: Edward Hill <ecgh@chromium.org>

3 files changed, 63 insertions, 1 deletions

diff --git a/board/ezkinil/board.c b/board/ezkinil/board.c
index 35194d42fb..6795f0dd9b 100644
--- a/board/ezkinil/board.c
+++ b/board/ezkinil/board.c
@@ -11,6 +11,8 @@
 #include "driver/accelgyro_bmi_common.h"
 #include "driver/accel_kionix.h"
 #include "driver/accel_kx022.h"
+#include "driver/ppc/aoz1380.h"
+#include "driver/ppc/nx20p348x.h"
 #include "driver/retimer/tusb544.h"
 #include "driver/temp_sensor/sb_tsi.h"
 #include "driver/usb_mux/amd_fp5.h"
@@ -32,6 +34,7 @@
 #include "temp_sensor.h"
 #include "usb_charge.h"
 #include "usb_mux.h"
+#include "usbc_ppc.h"
 
 #include "gpio_list.h"
 
@@ -338,6 +341,60 @@ const struct usb_mux usbc1_ps8743 = {
 };
 
 /*****************************************************************************
+ * PPC
+ */
+
+static int ppc_id;
+
+static void setup_c1_ppc_config(void)
+{
+	/*
+	 * Read USB_C1_POWER_SWITCH_ID to choose DB ppc chip
+	 * 0: NX20P3483UK
+	 * 1: AOZ1380DI
+	 */
+
+	ioex_get_level(IOEX_USB_C1_POWER_SWITCH_ID, &ppc_id);
+
+	ccprints("C1: PPC is %s", ppc_id ? "AOZ1380DI" : "NX20P3483UK");
+
+	if (ppc_id) {
+		ppc_chips[USBC_PORT_C1].drv = &aoz1380_drv;
+		ioex_set_flags(IOEX_USB_C1_PPC_ILIM_3A_EN, GPIO_OUT_LOW);
+	}
+}
+
+__override void ppc_interrupt(enum gpio_signal signal)
+{
+	switch (signal) {
+	case GPIO_USB_C0_PPC_FAULT_ODL:
+		aoz1380_interrupt(USBC_PORT_C0);
+		break;
+	case GPIO_USB_C1_PPC_INT_ODL:
+		if (ppc_id)
+			aoz1380_interrupt(USBC_PORT_C1);
+		else
+			nx20p348x_interrupt(USBC_PORT_C1);
+		break;
+	default:
+		break;
+	}
+}
+
+__override int board_aoz1380_set_vbus_source_current_limit(int port,
+						enum tcpc_rp_value rp)
+{
+	int rv;
+
+	/* Use the TCPC to set the current limit */
+	rv = ioex_set_level(port ? IOEX_USB_C1_PPC_ILIM_3A_EN
+				: IOEX_USB_C0_PPC_ILIM_3A_EN,
+				(rp == TYPEC_RP_3A0) ? 1 : 0);
+
+	return rv;
+}
+
+/*****************************************************************************
  * Use FW_CONFIG to set correct configuration.
  */
 
@@ -357,6 +414,9 @@ void setup_fw_config(void)
 
 	setup_mux();
 
+	if (board_ver >= 3)
+		setup_c1_ppc_config();
+
 	if (ec_config_has_hdmi_conn_hpd()) {
 		if (board_ver < 3)
 			ioex_enable_interrupt(IOEX_HDMI_CONN_HPD_3V3_DB);
diff --git a/board/ezkinil/board.h b/board/ezkinil/board.h
index ecde44e55a..17a924e99d 100644
--- a/board/ezkinil/board.h
+++ b/board/ezkinil/board.h
@@ -57,6 +57,7 @@
 #define GPIO_WP_L			GPIO_EC_WP_L
 #define GPIO_PACKET_MODE_EN		GPIO_EC_H1_PACKET_MODE
 #define GPIO_DP1_HPD			GPIO_EC_DP1_HPD
+#define IOEX_HDMI_CONN_HPD_3V3_DB	IOEX_USB_C1_PPC_ILIM_3A_EN
 
 #ifndef __ASSEMBLER__
 
diff --git a/board/ezkinil/gpio.inc b/board/ezkinil/gpio.inc
index 86a8b6e97c..e0145ce3db 100644
--- a/board/ezkinil/gpio.inc
+++ b/board/ezkinil/gpio.inc
@@ -57,7 +57,7 @@ GPIO(LED_FULL_L,		PIN(6, 0), GPIO_OUT_HIGH)
 GPIO(LED_CHRG_L,		PIN(C, 0), GPIO_OUT_HIGH)
 
 IOEX_INT(USB_C0_SBU_FAULT_ODL,	EXPIN(USBC_PORT_C0, 1, 2), GPIO_INT_FALLING, 	sbu_fault_interrupt)
-IOEX_INT(HDMI_CONN_HPD_3V3_DB,	EXPIN(USBC_PORT_C1, 1, 0), GPIO_INT_BOTH,	hdmi_hpd_interrupt_v2)
+IOEX_INT(USB_C1_PPC_ILIM_3A_EN,	EXPIN(USBC_PORT_C1, 1, 0), GPIO_INT_BOTH,	hdmi_hpd_interrupt_v2)	/* v3:C1 3A Current Limit Enable; v2:HDMI_CONN_HPD_3V3_DB */
 IOEX_INT(USB_C1_SBU_FAULT_DB_ODL, EXPIN(USBC_PORT_C1, 1, 2), GPIO_INT_FALLING,	sbu_fault_interrupt)
 
 IOEX(USB_C0_FAULT_ODL,		EXPIN(USBC_PORT_C0, 0, 3), GPIO_ODR_HIGH)	/* C0 Fault to SOC */
@@ -70,6 +70,7 @@ IOEX(USB_A0_CHARGE_EN_L,	EXPIN(USBC_PORT_C0, 1, 6), GPIO_OUT_HIGH)	/* A0 5V High
 IOEX(USB_C0_SBU_FLIP,		EXPIN(USBC_PORT_C0, 1, 7), GPIO_OUT_LOW)	/* C0 SBU Flip */
 
 IOEX(USB_A1_RETIMER_EN,		EXPIN(USBC_PORT_C1, 0, 0), GPIO_OUT_LOW)	/* A1 Retimer Enable */
+IOEX(USB_C1_POWER_SWITCH_ID,	EXPIN(USBC_PORT_C1, 0, 1), GPIO_INPUT)		/* C1 PPC ID, 0: NX20P34, 1: AOZ1380 */
 IOEX(USB_C1_HPD_IN_DB,		EXPIN(USBC_PORT_C1, 0, 2), GPIO_OUT_LOW)	/* C1 HPD */
 IOEX(HDMI_POWER_EN_DB,		EXPIN(USBC_PORT_C1, 0, 3), GPIO_OUT_LOW)	/* HDMI retimer power enable */
 IOEX(USB_C1_TCPC_FASTSW_CTL_EN,	EXPIN(USBC_PORT_C1, 0, 4), GPIO_OUT_LOW)	/* C1 FastSwitch Control */