diff options
| author | Alexander Usyskin <alexander.usyskin@intel.com> | 2019-04-22 08:51:07 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-04-25 19:33:34 +0200 |
| commit | 43b8a7ed4739a86c1e8543489bf5524780f66284 (patch) | |
| tree | b957696646ce67eed8211b5bb1d0398125100ece /drivers/misc/mei/init.c | |
| parent | mei: hdcp: use own Kconfig file (diff) | |
| download | linux-43b8a7ed4739a86c1e8543489bf5524780f66284.tar.xz linux-43b8a7ed4739a86c1e8543489bf5524780f66284.zip | |
mei: expose device state in sysfs
Expose mei device state to user-space through sysfs.
This gives indication to applications that driver is in transition,
usefully mostly to detect link reset state.
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc/mei/init.c')
| -rw-r--r-- | drivers/misc/mei/init.c | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/drivers/misc/mei/init.c b/drivers/misc/mei/init.c index cc359ae968ce..b9fef773e71b 100644 --- a/drivers/misc/mei/init.c +++ b/drivers/misc/mei/init.c @@ -123,12 +123,12 @@ int mei_reset(struct mei_device *dev) /* enter reset flow */ interrupts_enabled = state != MEI_DEV_POWER_DOWN; - dev->dev_state = MEI_DEV_RESETTING; + mei_set_devstate(dev, MEI_DEV_RESETTING); dev->reset_count++; if (dev->reset_count > MEI_MAX_CONSEC_RESET) { dev_err(dev->dev, "reset: reached maximal consecutive resets: disabling the device\n"); - dev->dev_state = MEI_DEV_DISABLED; + mei_set_devstate(dev, MEI_DEV_DISABLED); return -ENODEV; } @@ -150,7 +150,7 @@ int mei_reset(struct mei_device *dev) if (state == MEI_DEV_POWER_DOWN) { dev_dbg(dev->dev, "powering down: end of reset\n"); - dev->dev_state = MEI_DEV_DISABLED; + mei_set_devstate(dev, MEI_DEV_DISABLED); return 0; } @@ -162,11 +162,11 @@ int mei_reset(struct mei_device *dev) dev_dbg(dev->dev, "link is established start sending messages.\n"); - dev->dev_state = MEI_DEV_INIT_CLIENTS; + mei_set_devstate(dev, MEI_DEV_INIT_CLIENTS); ret = mei_hbm_start_req(dev); if (ret) { dev_err(dev->dev, "hbm_start failed ret = %d\n", ret); - dev->dev_state = MEI_DEV_RESETTING; + mei_set_devstate(dev, MEI_DEV_RESETTING); return ret; } @@ -196,7 +196,7 @@ int mei_start(struct mei_device *dev) dev->reset_count = 0; do { - dev->dev_state = MEI_DEV_INITIALIZING; + mei_set_devstate(dev, MEI_DEV_INITIALIZING); ret = mei_reset(dev); if (ret == -ENODEV || dev->dev_state == MEI_DEV_DISABLED) { @@ -231,7 +231,7 @@ int mei_start(struct mei_device *dev) return 0; err: dev_err(dev->dev, "link layer initialization failed.\n"); - dev->dev_state = MEI_DEV_DISABLED; + mei_set_devstate(dev, MEI_DEV_DISABLED); mutex_unlock(&dev->device_lock); return -ENODEV; } @@ -250,7 +250,7 @@ int mei_restart(struct mei_device *dev) mutex_lock(&dev->device_lock); - dev->dev_state = MEI_DEV_POWER_UP; + mei_set_devstate(dev, MEI_DEV_POWER_UP); dev->reset_count = 0; err = mei_reset(dev); @@ -301,7 +301,7 @@ void mei_stop(struct mei_device *dev) dev_dbg(dev->dev, "stopping the device.\n"); mutex_lock(&dev->device_lock); - dev->dev_state = MEI_DEV_POWER_DOWN; + mei_set_devstate(dev, MEI_DEV_POWER_DOWN); mutex_unlock(&dev->device_lock); mei_cl_bus_remove_devices(dev); @@ -314,7 +314,7 @@ void mei_stop(struct mei_device *dev) mei_reset(dev); /* move device to disabled state unconditionally */ - dev->dev_state = MEI_DEV_DISABLED; + mei_set_devstate(dev, MEI_DEV_DISABLED); mutex_unlock(&dev->device_lock); } |