mei: me: add pg exit and entry flow commands
For power gating entry we write hbm pg entry request command and
then we set pg register
For power gating exit we clear pg register and wait for exit request
hbm command.
Exit power gating request might also be initiated by the firmware
w/o explicit driver request
The power gating state is tracked by pg_state member of me_hw
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/misc/mei/hw.h b/drivers/misc/mei/hw.h
index ec4a91a..9bad9cf 100644
--- a/drivers/misc/mei/hw.h
+++ b/drivers/misc/mei/hw.h
@@ -31,6 +31,7 @@
#define MEI_IAMTHIF_STALL_TIMER 12 /* HPS */
#define MEI_IAMTHIF_READ_TIMER 10 /* HPS */
+#define MEI_PGI_TIMEOUT 1 /* PG Isolation time response 1 sec */
#define MEI_HBM_TIMEOUT 1 /* 1 second */
/*