From: Daniel Hung-yu Wu <h...@google.com>
Reboot or shutdown during delayed works could corrupt communication with
EC and certain I2C controller may not be able to recover from the error
state.
This patch registers a shutdown callback used to cancel the debugfs log
worker thread.
Signed-off-by: Daniel Hung-yu Wu <h...@chromium.org>
Signed-off-by: Thierry Escande <thierry.esca...@collabora.com>
[resent this patch after rename of this file from platform/chrome to
mfd]
Signed-off-by: Benson Leung <ble...@chromium.org>
---
drivers/mfd/cros_ec_dev.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/drivers/mfd/cros_ec_dev.c b/drivers/mfd/cros_ec_dev.c
index e4fafdd96e5e..065666182ba2 100644
--- a/drivers/mfd/cros_ec_dev.c
+++ b/drivers/mfd/cros_ec_dev.c
@@ -461,6 +461,14 @@ static int ec_device_remove(struct platform_device *pdev)
return 0;
}
+static void ec_device_shutdown(struct platform_device *pdev)
+{
+ struct cros_ec_dev *ec = dev_get_drvdata(&pdev->dev);
+
+ /* Be sure to clear up debugfs delayed works */
+ cros_ec_debugfs_remove(ec);
+}
+
static const struct platform_device_id cros_ec_id[] = {
{ DRV_NAME, 0 },
{ /* sentinel */ },
@@ -499,6 +507,7 @@ static struct platform_driver cros_ec_dev_driver = {
},
.probe = ec_device_probe,
.remove = ec_device_remove,
+ .shutdown = ec_device_shutdown,
};
static int __init cros_ec_dev_init(void)
--
2.15.1.504.g5279b80103-goog
