kernel/linux.git/drivers/misc/mei/init.c, branch v3.16.76

mei: make device disabled on stop unconditionally

2015-03-18T15:06:06+00:00

commit 6c15a8516b8118eb19a59fd0bd22df41b9101c32 upstream. Set the internal device state to to disabled after hardware reset in stop flow. This will cover cases when driver was not brought to disabled state because of an error and in stop flow we wish not to retry the reset. Signed-off-by: Alexander Usyskin Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman Signed-off-by: Luis Henriques

mei: add per device configuration

2014-05-27T21:16:38+00:00

Add mei_cfg structure that holds per device configuration data and hooks, as the first step we add firmware status register offsets Signed-off-by: Alexander Usyskin Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman

mei: fix memory leak of mei_clients array

2014-05-27T21:15:25+00:00

we never freed the mei_clients array on driver shutdown only on reset add mei_hbm_reset function that wraps the hbm cleanup Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman

mei: extract fw status registers

2014-05-03T23:21:22+00:00

Fetch FW status registers, as they are important in in understanding of FW reset reasons Signed-off-by: Alexander Usyskin Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman

mei: add function to check write queues

2014-05-03T23:20:24+00:00

The driver needs to check whether the write queue idle before entering power gating Signed-off-by: Tomas Winkler Signed-off-by: Alexander Usyskin Signed-off-by: Greg Kroah-Hartman

mei: expose hardware power gating state to mei layer

2014-05-03T23:20:24+00:00

Since the runtime pm and the internal power gating cannot be in complete sync in regards to I/O operations, we need to expose the device hardware internal power gating state to mei layer 2. We add pg_state handler that translate the hw internal pg state to mei layer 2. We add power gating event variable to keep power track of power gating transitions Signed-off-by: Tomas Winkler Signed-off-by: Alexander Usyskin Reviewed-by: Alexander Usyskin Signed-off-by: Greg Kroah-Hartman

mei: implement power gating isolation hbm layer

2014-05-03T23:20:23+00:00

Add send message functions and receive dispatch stubs for power gating isolation hbm protocol. The protocol consist of requests for entering and exiting the power gating isolation state and their responses. Signed-off-by: Tomas Winkler Signed-off-by: Alexander Usyskin Signed-off-by: Greg Kroah-Hartman

mei: Remove all bus devices from the mei_dev list when stopping the MEI

2014-02-18T18:04:35+00:00

When stopping the MEI, we should remove and potentially unregister all bus devices queued on the mei_dev linked list. Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman

mei: get rid of ext_msg

2014-02-14T19:12:46+00:00

Use more standard message writing for oob data. Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman

mei: allow multiple retries if the hw reset has failed

2014-02-07T23:09:35+00:00

In some rare case mei hw reset may take long time to settle. Instead of blocking resume flow we span another driver reset flow in separate work context This allows as to shorten hw reset timeout to something more acceptable by DPM_WATCHDOG_TIMEOUT Signed-off-by: Tomas Winkler Signed-off-by: Alexander Usyskin Signed-off-by: Greg Kroah-Hartman