[S] Change in coreboot[main]: drivers/intel/pmc_mux/conn: Copy ACPI _PLD property from USB port to mux

[Won Chung (Code Review)]

Won Chung has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/81089?usp=email )

Change subject: drivers/intel/pmc_mux/conn: Copy ACPI _PLD property from USB port to mux
......................................................................

drivers/intel/pmc_mux/conn: Copy ACPI _PLD property from USB port to mux

Copy ACPI _PLD values from USB ports to corresponding USB muxes.

BUG=to add
TEST=emerge coreboot & SSDT dump

Change-Id: If27042cc995ef188f8a3e31444e994318ff98803
Signed-off-by: Won Chung 
Tested-by: Emilie Roberts 
---
M src/drivers/intel/pmc_mux/conn/conn.c
1 file changed, 26 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/89/81089/1

diff --git a/src/drivers/intel/pmc_mux/conn/conn.c b/src/drivers/intel/pmc_mux/conn/conn.c
index c2c7199..7c58f05 100644
--- a/src/drivers/intel/pmc_mux/conn/conn.c
+++ b/src/drivers/intel/pmc_mux/conn/conn.c
@@ -1,6 +1,8 @@
 /* SPDX-License-Identifier: GPL-2.0-or-later */

#include <acpi/acpigen.h>
+#include <acpi/acpi_pld.h>
+#include <acpi/acpigen.h>
 #include <boot/coreboot_tables.h>
 #include <cbmem.h>
 #include <console/console.h>
@@ -94,12 +96,31 @@
    }
 }

+static void get_pld_from_usb_ports(struct acpi_pld *pld,
+	struct device *usb2_port, struct device *usb3_port)
+{
+	struct drivers_usb_acpi_config *config = NULL;
+
+	if (usb3_port)
+		config = usb3_port->chip_info;
+	else if (usb2_port)
+		config = usb2_port->chip_info;
+
+	if (config) {
+		if (config->use_custom_pld)
+			*pld = config->custom_pld;
+		else
+			acpi_pld_fill_usb(pld, config->type, &config->group);
+	}
+}
+
 static void conn_fill_ssdt(const struct device *dev)
 {
    struct drivers_intel_pmc_mux_conn_config *config = dev->chip_info;
    struct acpi_dp *dsd;
    const char *scope;
    const char *name;
+	struct acpi_pld pld = {0};

/* Reference the existing scope and write CONx device */
    scope = acpi_device_scope(dev);
@@ -131,6 +152,11 @@

acpi_dp_write(dsd);

+	// Copy _PLD from USB ports
+	get_pld_from_usb_ports(&pld, config->usb2_port, config->usb3_port);
+	if (!pld)
+		acpigen_write_pld(&pld);
+
    acpigen_pop_len(); /* CONx Device */
    acpigen_pop_len(); /* Scope */