diff options
| author | Jameson Thies <jthies@google.com> | 2024-09-17 21:03:05 +0000 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2024-09-30 16:54:44 +0000 |
| commit | 920c0a604560e179b7b1435260e25ec918f0cd74 (patch) | |
| tree | dac6a8fcce8bdc3fb7296ad74f124e6db8f15b39 /src | |
| parent | 460e2173ebd0fac8c5aa58bcdee6ff092909ada4 (diff) | |
chromeec/ec_acpi: Define ACPI devices for USB-C ports using UCSI
Add support to define ACPI devices for USB-C ports using UCSI. When
defining the typec configuration do not set mux/retimer information.
cros_ec_ucsi does not support setting USB muxes.
BUG=b:349822718
TEST=emerge-brox coreboot chromeos-bootimage. Boot to OS on brox,
confirmed that there are ACPI devices for each USB-C port and
cros_ec_ucsi correctly matched the ACPI devices ("ls -l
/sys/class/typec" with an update to add an ACPI match table to
the cros_ec_ucsi driver).
Change-Id: Ie7c281fe2a7fab705d3c238dcc4be68c93afd652
Signed-off-by: Jameson Thies <jthies@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/84404
Reviewed-by: Subrata Banik <subratabanik@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src')
| -rw-r--r-- | src/ec/google/chromeec/ec_acpi.c | 27 |
1 files changed, 19 insertions, 8 deletions
diff --git a/src/ec/google/chromeec/ec_acpi.c b/src/ec/google/chromeec/ec_acpi.c index 1c97dcc92d..65a425b793 100644 --- a/src/ec/google/chromeec/ec_acpi.c +++ b/src/ec/google/chromeec/ec_acpi.c @@ -18,6 +18,12 @@ #define GOOGLE_CHROMEEC_USBC_DEVICE_HID "GOOG0014" #define GOOGLE_CHROMEEC_USBC_DEVICE_NAME "USBC" +/* + * Boards using UCSI need the USB-C ports to match with cros_ec_ucsi, not + * cros-ec-typec. + */ +#define GOOGLE_CHROMEEC_USBC_UCSI_DEVICE_HID "GOOG0021" + const char *google_chromeec_acpi_name(const struct device *dev) { /* @@ -157,11 +163,6 @@ static void fill_ssdt_typec_device(const struct device *dev) struct acpi_pld pld = {0}; uint32_t pcap_mask = 0; - /* UCSI implementations do not require an ACPI device with mux info since the - linux kernel doesn't set the muxes. */ - if (google_chromeec_get_ucsi_enabled()) - return; - rv = google_chromeec_get_num_pd_ports(&num_ports); if (rv || num_ports == 0) return; @@ -173,9 +174,19 @@ static void fill_ssdt_typec_device(const struct device *dev) acpigen_write_scope(acpi_device_path(dev)); acpigen_write_device(GOOGLE_CHROMEEC_USBC_DEVICE_NAME); - acpigen_write_name_string("_HID", GOOGLE_CHROMEEC_USBC_DEVICE_HID); - acpigen_write_name_string("_DDN", "ChromeOS EC Embedded Controller " - "USB Type-C Control"); + + bool ucsi_platform = google_chromeec_get_ucsi_enabled(); + if (ucsi_platform) { + acpigen_write_name_string("_HID", + GOOGLE_CHROMEEC_USBC_UCSI_DEVICE_HID); + acpigen_write_name_string("_DDN", "ChromeOS EC UCSI USB Type-C " + "Control"); + } else { + acpigen_write_name_string("_HID", + GOOGLE_CHROMEEC_USBC_DEVICE_HID); + acpigen_write_name_string("_DDN", "ChromeOS EC Embedded " + "Controller USB Type-C Control"); + } for (i = 0; i < num_ports; ++i) { rv = google_chromeec_get_pd_port_caps(i, &port_caps); |