platform/chrome: cros_ec_typec: Add PM support (20b73687) · Commits · 戴 / test

Define basic suspend resume functions for cros-ec-typec. On suspend, we simply ensure that any pending port update work is completed, and on resume, we re-poll the port state to account for any changes/disconnections that might have occurred during suspend. Signed-off-by:

Prashant Malani <pmalani@chromium.org> Reviewed-by:

Guenter Roeck <groeck@chromium.org> Reviewed-by:

Heikki Krogerus <heikki.krogerus@linux.intel.com> Signed-off-by:

Enric Balletbo i Serra <enric.balletbo@collabora.com>

drivers/platform/chrome/cros_ec_typec.c

+24 −0

Original line number	Diff line number	Diff line
		@@ -720,11 +720,35 @@ unregister_ports:
		return ret;
		}

		static int __maybe_unused cros_typec_suspend(struct device *dev)
		{
		struct cros_typec_data *typec = dev_get_drvdata(dev);

		cancel_work_sync(&typec->port_work);

		return 0;
		}

		static int __maybe_unused cros_typec_resume(struct device *dev)
		{
		struct cros_typec_data *typec = dev_get_drvdata(dev);

		/* Refresh port state. */
		schedule_work(&typec->port_work);

		return 0;
		}

		static const struct dev_pm_ops cros_typec_pm_ops = {
		SET_SYSTEM_SLEEP_PM_OPS(cros_typec_suspend, cros_typec_resume)
		};

		static struct platform_driver cros_typec_driver = {
		.driver = {
		.name = DRV_NAME,
		.acpi_match_table = ACPI_PTR(cros_typec_acpi_id),
		.of_match_table = of_match_ptr(cros_typec_of_match),
		.pm = &cros_typec_pm_ops,
		},
		.probe = cros_typec_probe,
		};

Admin message