This patch applies on top of "mfd: cros_ec: Add EC console read structures definitions" (https://patchwork.kernel.org/patch/9294887/).
This patch is currently against a linux 3.18 kernel. 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. A shutdown function is registered to clear delayed works or wait for them to finish. Signed-off-by: Daniel Hung-yu Wu <[email protected]> --- 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 8618a7c..3e548f1 100644 --- a/drivers/mfd/cros_ec_dev.c +++ b/drivers/mfd/cros_ec_dev.c @@ -613,6 +613,14 @@ 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 int ec_device_suspend(struct device *dev) { struct cros_ec_dev *ec = dev_get_drvdata(dev); @@ -656,6 +664,7 @@ 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
