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usb: typec: ucsi: acpi: Implement resume callback
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The ACPI driver needs to resume the interface by calling
ucsi_resume(). Otherwise we may fail to detect connections
and disconnections that happen while the system is
suspended.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=210425
Fixes: a94ecde ("usb: typec: ucsi: ccg: enable runtime pm support")
Cc: <stable@vger.kernel.org>
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20221007100951.43798-3-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Heikki Krogerus authored and Greg Kroah-Hartman committed Oct 22, 2022
1 parent 99f6d43 commit 4e3a502
Showing 1 changed file with 10 additions and 0 deletions.
10 changes: 10 additions & 0 deletions drivers/usb/typec/ucsi/ucsi_acpi.c
Original file line number Diff line number Diff line change
Expand Up @@ -185,6 +185,15 @@ static int ucsi_acpi_remove(struct platform_device *pdev)
return 0;
}

static int ucsi_acpi_resume(struct device *dev)
{
struct ucsi_acpi *ua = dev_get_drvdata(dev);

return ucsi_resume(ua->ucsi);
}

static DEFINE_SIMPLE_DEV_PM_OPS(ucsi_acpi_pm_ops, NULL, ucsi_acpi_resume);

static const struct acpi_device_id ucsi_acpi_match[] = {
{ "PNP0CA0", 0 },
{ },
Expand All @@ -194,6 +203,7 @@ MODULE_DEVICE_TABLE(acpi, ucsi_acpi_match);
static struct platform_driver ucsi_acpi_platform_driver = {
.driver = {
.name = "ucsi_acpi",
.pm = pm_ptr(&ucsi_acpi_pm_ops),
.acpi_match_table = ACPI_PTR(ucsi_acpi_match),
},
.probe = ucsi_acpi_probe,
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