dalboz: select GPIOs based on DB option

BUG=b:150349225
BRANCH=none
TEST=none

Signed-off-by: Edward Hill <ecgh@chromium.org>
Change-Id: I7079d989013e022fb0bc7ffa925f51e6490d864c
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2101223
Reviewed-by: Denis Brockus <dbrockus@chromium.org>
Reviewed-by: Paul Ma <magf@bitland.corp-partner.google.com>
Tested-by: Paul Ma <magf@bitland.corp-partner.google.com>

3 files changed, 55 insertions, 7 deletions

diff --git a/board/dalboz/board.c b/board/dalboz/board.c
index e4397b1522..04b8b4ca2a 100644
--- a/board/dalboz/board.c
+++ b/board/dalboz/board.c
@@ -12,6 +12,7 @@
 #include "fan.h"
 #include "fan_chip.h"
 #include "gpio.h"
+#include "hooks.h"
 #include "lid_switch.h"
 #include "power.h"
 #include "power_button.h"
@@ -127,6 +128,40 @@ unsigned int motion_sensor_count = ARRAY_SIZE(motion_sensors);
 
 #endif /* HAS_TASK_MOTIONSENSE */
 
+/* These IO expander GPIOs vary with DB option. */
+enum gpio_signal IOEX_USB_A1_RETIMER_EN = IOEX_USB_A1_RETIMER_EN_OPT1;
+enum gpio_signal IOEX_USB_A1_CHARGE_EN_DB_L = IOEX_USB_A1_CHARGE_EN_DB_L_OPT1;
+
+static void setup_usb_db(void)
+{
+	if (ec_config_get_usb_db() == DALBOZ_DB_D_OPT2_USBA_HDMI) {
+		ccprints("DB OPT2 HDMI");
+		ioex_config[IOEX_HDMI_PCAL6408].flags = 0;
+		ioex_init(IOEX_HDMI_PCAL6408);
+		IOEX_USB_A1_RETIMER_EN = IOEX_USB_A1_RETIMER_EN_OPT2;
+		IOEX_USB_A1_CHARGE_EN_DB_L = IOEX_USB_A1_CHARGE_EN_DB_L_OPT2;
+	} else {
+		ccprints("DB OPT1 USBC");
+		ioex_config[IOEX_C1_NCT3807].flags = 0;
+		ioex_init(IOEX_C1_NCT3807);
+		IOEX_USB_A1_RETIMER_EN = IOEX_USB_A1_RETIMER_EN_OPT1;
+		IOEX_USB_A1_CHARGE_EN_DB_L = IOEX_USB_A1_CHARGE_EN_DB_L_OPT1;
+	}
+
+	/* Enable PPC interrupts. */
+	gpio_enable_interrupt(GPIO_USB_C0_PPC_FAULT_ODL);
+	gpio_enable_interrupt(GPIO_USB_C1_PPC_INT_ODL);
+
+	/* Enable TCPC interrupts. */
+	gpio_enable_interrupt(GPIO_USB_C0_TCPC_INT_ODL);
+	gpio_enable_interrupt(GPIO_USB_C1_TCPC_INT_ODL);
+
+	/* Enable BC 1.2 interrupts */
+	gpio_enable_interrupt(GPIO_USB_C0_BC12_INT_ODL);
+	gpio_enable_interrupt(GPIO_USB_C1_BC12_INT_ODL);
+}
+DECLARE_HOOK(HOOK_INIT, setup_usb_db, HOOK_PRIO_INIT_I2C + 2);
+
 void board_update_sensor_config_from_sku(void)
 {
 	/* Enable Gyro interrupts */
diff --git a/board/dalboz/board.h b/board/dalboz/board.h
index 07a1ea56a1..44b2a1234b 100644
--- a/board/dalboz/board.h
+++ b/board/dalboz/board.h
@@ -142,6 +142,10 @@ static inline bool ec_config_has_usbc1_retimer_ps8740(void)
 		  HAS_USBC1_RETIMER_PS8740);
 }
 
+/* These IO expander GPIOs vary with DB option. */
+extern enum gpio_signal IOEX_USB_A1_RETIMER_EN;
+extern enum gpio_signal IOEX_USB_A1_CHARGE_EN_DB_L;
+
 #endif /* !__ASSEMBLER__ */
 
 #endif /* __CROS_EC_BOARD_H */
diff --git a/board/dalboz/gpio.inc b/board/dalboz/gpio.inc
index 05950f45c6..fb69562fdf 100644
--- a/board/dalboz/gpio.inc
+++ b/board/dalboz/gpio.inc
@@ -50,27 +50,36 @@ GPIO(DP1_HPD,			PIN(F, 4), GPIO_OUT_LOW)			/* C1 DP Hotplug Detect */
 GPIO(LED_FULL_L,		PIN(6, 0), GPIO_OUT_HIGH)
 GPIO(LED_CHRG_L,		PIN(C, 0), GPIO_OUT_HIGH)
 
-IOEX_INT(HDMI_CONN_HPD_3V3_DB,	EXPIN(IOEX_C1_NCT3807, 1, 0), GPIO_INT_BOTH,	hdmi_hpd_interrupt)
+/*
+ * Dalboz has 2 DB options, with different IO expanders. IOEX_C1_NCT3807 is the
+ * OPT1 DB (USB-C1), IOEX_HDMI_PCAL6408 is the OPT2 DB (HDMI).
+ */
+
+IOEX_INT(HDMI_CONN_HPD_3V3_DB,	EXPIN(IOEX_HDMI_PCAL6408, 0, 4), GPIO_INT_BOTH,		hdmi_hpd_interrupt)
 
 IOEX(USB_C0_FAULT_ODL,		EXPIN(IOEX_C0_NCT3807, 0, 3), GPIO_ODR_HIGH)	/* C0 Fault to SOC */
 IOEX(USB_C0_TCPC_FASTSW_CTL_EN,	EXPIN(IOEX_C0_NCT3807, 0, 4), GPIO_OUT_LOW)	/* C0 FastSwitch Control */
 IOEX(USB_C1_FAULT_ODL,		EXPIN(IOEX_C0_NCT3807, 1, 0), GPIO_ODR_HIGH)	/* C1 Fault to SOC */
 IOEX(USB_C0_PPC_ILIM_3A_EN,	EXPIN(IOEX_C0_NCT3807, 1, 1), GPIO_OUT_LOW)	/* C0 3A Current Limit Enable */
-IOEX(USB_C0_SBU_FAULT_ODL,	EXPIN(IOEX_C0_NCT3807, 1, 2), GPIO_INPUT)		/* C0 SBU Fault */
+IOEX(USB_C0_SBU_FAULT_ODL,	EXPIN(IOEX_C0_NCT3807, 1, 2), GPIO_INPUT)	/* C0 SBU Fault */
 IOEX(KB_BL_EN,			EXPIN(IOEX_C0_NCT3807, 1, 3), GPIO_OUT_LOW)	/* KB Backlight Enable */
 IOEX(EN_USB_A0_5V,		EXPIN(IOEX_C0_NCT3807, 1, 5), GPIO_OUT_LOW)	/* A0 5V Source Enable */
 IOEX(USB_A0_CHARGE_EN_L,	EXPIN(IOEX_C0_NCT3807, 1, 6), GPIO_OUT_HIGH)	/* A0 5V High Current Enable */
 IOEX(USB_C0_SBU_FLIP,		EXPIN(IOEX_C0_NCT3807, 1, 7), GPIO_OUT_LOW)	/* C0 SBU Flip */
 
-IOEX(USB_A1_RETIMER_EN,		EXPIN(IOEX_C1_NCT3807, 0, 0), GPIO_OUT_LOW)	/* A1 Retimer Enable */
+IOEX(USB_A1_RETIMER_EN_OPT1,	EXPIN(IOEX_C1_NCT3807, 0, 0), GPIO_OUT_LOW)	/* A1 Retimer Enable */
 IOEX(USB_C1_HPD_IN_DB,		EXPIN(IOEX_C1_NCT3807, 0, 2), GPIO_OUT_LOW)	/* C1 HPD */
 IOEX(USB_C1_TCPC_FASTSW_CTL_EN,	EXPIN(IOEX_C1_NCT3807, 0, 4), GPIO_OUT_LOW)	/* C1 FastSwitch Control */
-IOEX(USB_C1_SBU_FAULT_DB_ODL,	EXPIN(IOEX_C1_NCT3807, 1, 2), GPIO_INPUT)		/* C1 SBU Fault */
+IOEX(USB_C1_SBU_FAULT_DB_ODL,	EXPIN(IOEX_C1_NCT3807, 1, 2), GPIO_INPUT)	/* C1 SBU Fault */
 IOEX(USB_C1_PPC_EN_L,		EXPIN(IOEX_C1_NCT3807, 1, 3), GPIO_OUT_LOW)	/* C1 PPC Enable */
-IOEX(HDMI_DATA_EN_DB,		EXPIN(IOEX_C1_NCT3807, 1, 4), GPIO_OUT_HIGH)	/* HDMI Retimer Enable */
 IOEX(USB_C1_DATA_EN,		EXPIN(IOEX_C1_NCT3807, 1, 5), GPIO_OUT_HIGH)	/* C1 Retimer Enable */
-IOEX(EN_USB_A1_5V_DB,		EXPIN(IOEX_C1_NCT3807, 1, 6), GPIO_OUT_LOW)	/* A1 5V Source Enable */
-IOEX(USB_A1_CHARGE_EN_DB_L,	EXPIN(IOEX_C1_NCT3807, 1, 7), GPIO_OUT_HIGH)	/* A1 5V High Current Enable */
+IOEX(EN_USB_A1_5V_DB_OPT1,	EXPIN(IOEX_C1_NCT3807, 1, 6), GPIO_OUT_LOW)	/* A1 5V Source Enable */
+IOEX(USB_A1_CHARGE_EN_DB_L_OPT1,EXPIN(IOEX_C1_NCT3807, 1, 7), GPIO_OUT_HIGH)	/* A1 5V High Current Enable */
+
+IOEX(USB_A1_RETIMER_EN_OPT2,	EXPIN(IOEX_HDMI_PCAL6408, 0, 0), GPIO_OUT_LOW)	/* A1 Retimer Enable */
+IOEX(EN_USB_A1_5V_DB_OPT2,	EXPIN(IOEX_HDMI_PCAL6408, 0, 1), GPIO_OUT_LOW)	/* A1 5V Source Enable */
+IOEX(USB_A1_CHARGE_EN_DB_L_OPT2,EXPIN(IOEX_HDMI_PCAL6408, 0, 2), GPIO_OUT_HIGH)	/* A1 5V High Current Enable */
+IOEX(HDMI_DATA_EN_DB,		EXPIN(IOEX_HDMI_PCAL6408, 0, 3), GPIO_OUT_HIGH)	/* HDMI Retimer Enable */
 
 /*
  * The NPCX LPC driver configures and controls SCI, so PCH_SCI_ODL [PIN(7, 6)]