diff options
Diffstat (limited to 'drivers/platform/chrome/cros_ec.c')
| -rw-r--r-- | drivers/platform/chrome/cros_ec.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/platform/chrome/cros_ec.c b/drivers/platform/chrome/cros_ec.c index fd77e6fa74c2..9b2d07422e17 100644 --- a/drivers/platform/chrome/cros_ec.c +++ b/drivers/platform/chrome/cros_ec.c @@ -104,6 +104,15 @@ static int cros_ec_sleep_event(struct cros_ec_device *ec_dev, u8 sleep_event) return ret; } +/** + * cros_ec_register() - Register a new ChromeOS EC, using the provided info. + * @ec_dev: Device to register. + * + * Before calling this, allocate a pointer to a new device and then fill + * in all the fields up to the --private-- marker. + * + * Return: 0 on success or negative error code. + */ int cros_ec_register(struct cros_ec_device *ec_dev) { struct device *dev = ec_dev->dev; @@ -198,6 +207,14 @@ int cros_ec_register(struct cros_ec_device *ec_dev) } EXPORT_SYMBOL(cros_ec_register); +/** + * cros_ec_unregister() - Remove a ChromeOS EC. + * @ec_dev: Device to unregister. + * + * Call this to deregister a ChromeOS EC, then clean up any private data. + * + * Return: 0 on success or negative error code. + */ int cros_ec_unregister(struct cros_ec_device *ec_dev) { if (ec_dev->pd) @@ -209,6 +226,14 @@ int cros_ec_unregister(struct cros_ec_device *ec_dev) EXPORT_SYMBOL(cros_ec_unregister); #ifdef CONFIG_PM_SLEEP +/** + * cros_ec_suspend() - Handle a suspend operation for the ChromeOS EC device. + * @ec_dev: Device to suspend. + * + * This can be called by drivers to handle a suspend event. + * + * Return: 0 on success or negative error code. + */ int cros_ec_suspend(struct cros_ec_device *ec_dev) { struct device *dev = ec_dev->dev; @@ -243,6 +268,14 @@ static void cros_ec_report_events_during_suspend(struct cros_ec_device *ec_dev) 1, ec_dev); } +/** + * cros_ec_resume() - Handle a resume operation for the ChromeOS EC device. + * @ec_dev: Device to resume. + * + * This can be called by drivers to handle a resume event. + * + * Return: 0 on success or negative error code. + */ int cros_ec_resume(struct cros_ec_device *ec_dev) { int ret; |