diff options
| author | Gil Fine <gil.fine@intel.com> | 2022-09-23 01:30:38 +0300 |
|---|---|---|
| committer | Mika Westerberg <mika.westerberg@linux.intel.com> | 2023-06-09 12:07:22 +0300 |
| commit | 7ce542219b6323764cb922722b677005404d9b60 (patch) | |
| tree | 13d0ddb08544c5a34a01cc0ba874756529938a5f /drivers/thunderbolt/acpi.c | |
| parent | ef65afa0740e28cb0951fa9012cb78765f883a4a (diff) | |
| download | linux-7ce542219b6323764cb922722b677005404d9b60.tar.xz | |
thunderbolt: Introduce tb_switch_downstream_port()
Introduce tb_switch_downstream_port() helper function that returns the
downstream port of a parent switch that is connected to the upstream
port of specified switch. From now on, we use it all across the driver
where applicable.
While there fix a whitespace in comment and rename 'downstream' to
'down' to be consistent with the rest of the driver.
Signed-off-by: Gil Fine <gil.fine@intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Diffstat (limited to 'drivers/thunderbolt/acpi.c')
| -rw-r--r-- | drivers/thunderbolt/acpi.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/thunderbolt/acpi.c b/drivers/thunderbolt/acpi.c index 3514bf65b7a4..38fefd0e5268 100644 --- a/drivers/thunderbolt/acpi.c +++ b/drivers/thunderbolt/acpi.c @@ -296,16 +296,15 @@ static bool tb_acpi_bus_match(struct device *dev) static struct acpi_device *tb_acpi_switch_find_companion(struct tb_switch *sw) { + struct tb_switch *parent_sw = tb_switch_parent(sw); struct acpi_device *adev = NULL; - struct tb_switch *parent_sw; /* * Device routers exists under the downstream facing USB4 port * of the parent router. Their _ADR is always 0. */ - parent_sw = tb_switch_parent(sw); if (parent_sw) { - struct tb_port *port = tb_port_at(tb_route(sw), parent_sw); + struct tb_port *port = tb_switch_downstream_port(sw); struct acpi_device *port_adev; port_adev = acpi_find_child_by_adr(ACPI_COMPANION(&parent_sw->dev), |