From 44d99d737279eb2021b2c66df3cee6f8a21ff4e4 Mon Sep 17 00:00:00 2001 From: Douglas Anderson Date: Wed, 18 Apr 2018 12:24:00 +0200 Subject: mfd: cros_ec: Don't try to grab log when suspended We should stop our worker thread while we're suspended. If we don't then we'll get messages like: cros-ec-spi spi5.0: spi transfer failed: -108 cros-ec-spi spi5.0: cs-deassert spi transfer failed: -108 cros-ec-ctl cros-ec-ctl.0.auto: EC communication failed Signed-off-by: Douglas Anderson Signed-off-by: Enric Balletbo i Serra Reviewed-by: Andy Shevchenko Signed-off-by: Lee Jones --- drivers/platform/chrome/cros_ec_debugfs.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'drivers/platform/chrome/cros_ec_debugfs.c') diff --git a/drivers/platform/chrome/cros_ec_debugfs.c b/drivers/platform/chrome/cros_ec_debugfs.c index cc265ed8deb7..c62ee8e610a0 100644 --- a/drivers/platform/chrome/cros_ec_debugfs.c +++ b/drivers/platform/chrome/cros_ec_debugfs.c @@ -470,3 +470,23 @@ void cros_ec_debugfs_remove(struct cros_ec_dev *ec) cros_ec_cleanup_console_log(ec->debug_info); } EXPORT_SYMBOL(cros_ec_debugfs_remove); + +void cros_ec_debugfs_suspend(struct cros_ec_dev *ec) +{ + /* + * cros_ec_debugfs_init() failures are non-fatal; it's also possible + * that we initted things but decided that console log wasn't supported. + * We'll use the same set of checks that cros_ec_debugfs_remove() + + * cros_ec_cleanup_console_log() end up using to handle those cases. + */ + if (ec->debug_info && ec->debug_info->log_buffer.buf) + cancel_delayed_work_sync(&ec->debug_info->log_poll_work); +} +EXPORT_SYMBOL(cros_ec_debugfs_suspend); + +void cros_ec_debugfs_resume(struct cros_ec_dev *ec) +{ + if (ec->debug_info && ec->debug_info->log_buffer.buf) + schedule_delayed_work(&ec->debug_info->log_poll_work, 0); +} +EXPORT_SYMBOL(cros_ec_debugfs_resume); -- cgit