ec/google/chromeec: Append connector device to *-switch properties
The orientation, etc. -switch properties are supposed to use the
connector device (underneath the MUX device) that belongs to the port
number in question. This patch finds the CONx device and uses that
to pass to the acpigen API.
BUG=b:154620502
TEST=on Volteer, dump SSDT and verify the *-switch properties point to
\_SB.PCI0.PNC.MUX.CON0 and CON1
Change-Id: Ie65c2d750f3d9f83285e0e4cc9642110c804bbad
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42045
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
diff --git a/src/ec/google/chromeec/ec_acpi.c b/src/ec/google/chromeec/ec_acpi.c
index 0dbaa9c..8c80382 100644
--- a/src/ec/google/chromeec/ec_acpi.c
+++ b/src/ec/google/chromeec/ec_acpi.c
@@ -124,6 +124,22 @@
port_location_to_str(port_caps.port_location));
}
+static int con_id_to_match;
+
+/* A callback to match a port's connector for dev_find_matching_device_on_bus */
+static bool match_connector(DEVTREE_CONST struct device *dev)
+{
+ if (CONFIG(DRIVERS_INTEL_PMC)) {
+ extern struct chip_operations drivers_intel_pmc_mux_con_ops;
+
+ return (dev->chip_ops == &drivers_intel_pmc_mux_con_ops &&
+ dev->path.type == DEVICE_PATH_GENERIC &&
+ dev->path.generic.id == con_id_to_match);
+ }
+
+ return false;
+}
+
static void fill_ssdt_typec_device(const struct device *dev)
{
int rv;
@@ -132,6 +148,7 @@
struct device *usb3_port;
struct device *usb4_port;
const struct device *mux;
+ const struct device *con;
if (google_chromeec_get_num_pd_ports(&num_ports))
return;
@@ -147,7 +164,14 @@
if (rv)
continue;
+ /* Get the MUX device, and find the matching connector on its bus */
+ con = NULL;
mux = soc_get_pmc_mux_device(i);
+ if (mux) {
+ con_id_to_match = i;
+ con = dev_find_matching_device_on_bus(mux->link_list, match_connector);
+ }
+
usb2_port = NULL;
usb3_port = NULL;
usb4_port = NULL;
@@ -160,9 +184,9 @@
.usb2_port = usb2_port,
.usb3_port = usb3_port,
.usb4_port = usb4_port,
- .orientation_switch = mux,
- .usb_role_switch = mux,
- .mode_switch = mux,
+ .orientation_switch = con,
+ .usb_role_switch = con,
+ .mode_switch = con,
};
acpigen_write_typec_connector(&config, i, add_port_location);