This patch applies on top of "mfd: cros_ec: Add EC console read structures
definitions" (https://patchwork.kernel.org/patch/9294887/).
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.
BUG=chrome-os-partner:58823
TEST=factory run-in test for 200+ times
Signed-off-by: Daniel Hung-yu Wu <h...@chromium.org>
---
drivers/platform/chrome/cros_ec_dev.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/drivers/platform/chrome/cros_ec_dev.c
b/drivers/platform/chrome/cros_ec_dev.c
index 7d51f69..137c0ce 100644
--- a/drivers/platform/chrome/cros_ec_dev.c
+++ b/drivers/platform/chrome/cros_ec_dev.c
@@ -308,6 +308,14 @@ 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[] = {
{ "cros-ec-ctl", 0 },
{ /* sentinel */ },
@@ -320,6 +328,7 @@ 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)
--
2.8.0.rc3.226.g39d4020
