kernel.git/drivers/misc/mei/client.c, branch linux-4.0.y

mei: me: wait for power gating exit confirmation

2015-07-21T17:10:12Z

commit 3dc196eae1db548f05e53e5875ff87b8ff79f249 upstream. Fix the hbm power gating state machine so it will wait till it receives confirmation interrupt for the PG_ISOLATION_EXIT message. In process of the suspend flow the devices first have to exit from the power gating state (runtime pm resume). If we do not handle the confirmation interrupt after sending PG_ISOLATION_EXIT message, we may receive it already after the suspend flow has changed the device state and interrupt will be interpreted as a spurious event, consequently link reset will be invoked which will prevent the device from completing the suspend flow kernel: [6603] mei_reset:136: mei_me 0000:00:16.0: powering down: end of reset kernel: [476] mei_me_irq_thread_handler:643: mei_me 0000:00:16.0: function called after ISR to handle the interrupt processing. kernel: mei_me 0000:00:16.0: FW not ready: resetting Cc: Gabriele Mazzotta Link: https://bugzilla.kernel.org/show_bug.cgi?id=86241 Link: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=770397 Tested-by: Gabriele Mazzotta Signed-off-by: Alexander Usyskin Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman

mei: add reference counting for me clients

2015-01-25T17:17:56Z

To support dynamic addition and removal of me clients we add reference counter. Update kdoc with locking requirements. Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman

mei: use uuid, me_addr tuple addressing also for flow control credits

2015-01-12T13:04:10Z

Add uuid, me_addr addressing also for flow control credits. The only exception in cases for single buffer clients for which the host address in flow credits response is always 0 To in order to deal with add/remove race between fw and driver clients addressing we need to use [uuid, me_addr] tuple to address the clients Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman

mei: drop unneeded client NULL check in cb structure

2014-11-03T23:52:48Z

The pointer to client in the callback structure (cb->cl) can't be NULL with current locking. We can drop check and warnings as in some cases this just uselessly complicates the code flow. Signed-off-by: Alexander Usyskin Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman

mei: fix kernel-doc warnings

2014-09-29T15:56:02Z

Add missed parameters descriptions and return values descriptions Signed-off-by: Alexander Usyskin Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman

mei: fix KDoc documentation formatting

2014-09-29T15:56:02Z

Fix Kdoc documentation formatting warnings genertaed by ./scripts/kernel-doc Signed-off-by: Alexander Usyskin Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman

mei: trivial: fix errors in prints in comments

2014-09-29T15:56:02Z

Fix misspellings and wrong print texts Signed-off-by: Alexander Usyskin Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman

mei: remove include to pci header from mei module files

2014-09-29T15:56:02Z

Remove inclusion of linux/pci.h in mei layer however we need to include the headers that before got included implicitly from linux/pci.h. Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman

mei: get rid of most of the pci dependencies in mei

2014-09-29T15:56:01Z

For purpose of adding testing HW we would like to get rid of pci dependency in generic mei code This patch provides only straight forward changes FW status and prob quirks need to be handled separately Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman

mei: fix style warning: Missing a blank line after declarations

2014-09-29T15:56:01Z

fix new style warning: Missing a blank line after declarations Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman