diff options
| author | Duncan Laurie <dlaurie@google.com> | 2018-12-01 17:14:35 -0800 |
|---|---|---|
| committer | Duncan Laurie <dlaurie@chromium.org> | 2018-12-04 22:50:15 +0000 |
| commit | e1eca1d91cf05b8769e830b5ab59060a0ad5ff0c (patch) | |
| tree | 6726ac337bac9263bbfb68c22f86a90f978b38f0 /src/drivers | |
| parent | 1e64d2386a5f281c294666cec59b45f37c40338d (diff) | |
acpi_pld: Make it easier to define the ACPI USB device groups
The Linux kernel can use the ACPI _PLD group information to
determine peer ports. Currently to define the group information
the devicetree must provide a complete _PLD structure. This
change pulls the group information into a separate structure that
can be defined in devicetree. This makes it easier to set for
USB devices in devicetree that do not need a full custom PLD.
This was tested on a sarien board with the USB devices defined
by verifying that the USB 2/3 ports are correctly identified
with their peer in sysfs.
Change-Id: Ifd4cadf0f6c901eb3832ad4e1395904f99c2f5a0
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Reviewed-on: https://review.coreboot.org/c/29998
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Diffstat (limited to 'src/drivers')
| -rw-r--r-- | src/drivers/usb/acpi/chip.h | 8 | ||||
| -rw-r--r-- | src/drivers/usb/acpi/usb_acpi.c | 2 |
2 files changed, 8 insertions, 2 deletions
diff --git a/src/drivers/usb/acpi/chip.h b/src/drivers/usb/acpi/chip.h index 6429f13630..512893d207 100644 --- a/src/drivers/usb/acpi/chip.h +++ b/src/drivers/usb/acpi/chip.h @@ -46,7 +46,13 @@ struct drivers_usb_acpi_config { */ enum acpi_upc_type type; - /* Define a custom physical location for the port */ + /* Group peer ports */ + struct acpi_pld_group group; + + /* + * Define a custom physical location for the port. + * If enabled, this takes precedence over the 'group' field. + */ bool use_custom_pld; struct acpi_pld custom_pld; diff --git a/src/drivers/usb/acpi/usb_acpi.c b/src/drivers/usb/acpi/usb_acpi.c index f049e68c22..abc1718eb9 100644 --- a/src/drivers/usb/acpi/usb_acpi.c +++ b/src/drivers/usb/acpi/usb_acpi.c @@ -57,7 +57,7 @@ static void usb_acpi_fill_ssdt_generator(struct device *dev) } else { /* Fill PLD strucutre based on port type */ struct acpi_pld pld; - acpi_pld_fill_usb(&pld, config->type); + acpi_pld_fill_usb(&pld, config->type, &config->group); acpigen_write_pld(&pld); } |