mb/google/dedede/var/cappy2: Add camera support

Add camera support in devicetree and associated GPIO configuration.

BUG=b:193397569
BRANCH=dedede
TEST=Camera function is OK

Signed-off-by: Sunwei Li <lisunwei@huaqin.corp-partner.google.com>
Change-Id: I3275ab408f6a03735a35eaa8025c36df09c9898c
Reviewed-on: https://review.coreboot.org/c/coreboot/+/56647
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>

src/mainboard/google/dedede/variants/cappy2/Makefile.inc

@@ -0,0 +1,3 @@
+## SPDX-License-Identifier: GPL-2.0-or-later
+
+ramstage-y += gpio.c

src/mainboard/google/dedede/variants/cappy2/gpio.c

@@ -0,0 +1,16 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include <baseboard/gpio.h>
+#include <baseboard/variants.h>
+
+/* Pad configuration in ramstage */
+static const struct pad_config gpio_table[] = {
+	/* D15 : EN_PP3300_CAMERA */
+	PAD_CFG_GPO(GPP_D15, 1, PLTRST),
+};
+
+const struct pad_config *variant_override_gpio_table(size_t *num)
+{
+	*num = ARRAY_SIZE(gpio_table);
+	return gpio_table;
+}

src/mainboard/google/dedede/variants/cappy2/overridetree.cb

@@ -30,7 +30,24 @@ chip soc/intel/jasperlake
 
 	register "disable_external_bypass_vr" = "1"    # Does not support external vnn power rail
 
+	# USB Port Configuration
+	register "usb2_ports[5]" = "USB2_PORT_MID(OC_SKIP)"     # Camera
+
 	device domain 0 on
+		device pci 14.0 on
+			chip drivers/usb/acpi
+				device usb 0.0 on
+					chip drivers/usb/acpi
+						register "desc" = ""UFCamera""
+						register "type" = "UPC_TYPE_INTERNAL"
+						register "has_power_resource" = "1"
+						register "enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_D15)"
+						register "enable_delay_ms" = "20"
+						device usb 2.5 on end
+					end
+				end
+			end
+		end # USB xHCI
 		device pci 15.0 on
 			chip drivers/i2c/hid
 				register "generic.hid" = ""SYNA0A00""