mei: me: introduce power gating registers

LPT devices have internal power gating handled
through registers and hbm calls
Signed-off-by: NTomas Winkler <tomas.winkler@intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/misc/mei/hw-me-regs.h

@@ -133,6 +133,8 @@
 #define ME_CB_RW   8
 /* ME_CSR_HA - ME Control Status Host Access register (read only) */
 #define ME_CSR_HA  0xC
+/* H_HGC_CSR - PGI register */
+#define H_HPG_CSR  0x10
 
 
 /* register bits of H_CSR (Host Control Status register) */
@@ -162,6 +164,8 @@ access to ME_CBD */
 #define ME_CBWP_HRA       0x00FF0000
 /* ME CB Read Pointer HRA - host read only access to ME_CBRP */
 #define ME_CBRP_HRA       0x0000FF00
+/* ME Power Gate Isolation Capability HRA  - host ready only access */
+#define ME_PGIC_HRA       0x00000040
 /* ME Reset HRA - host read only access to ME_RST */
 #define ME_RST_HRA        0x00000010
 /* ME Ready HRA - host read only access to ME_RDY */
@@ -173,4 +177,9 @@ access to ME_CBD */
 /* ME Interrupt Enable HRA - host read only access to ME_IE */
 #define ME_IE_HRA         0x00000001
 
+
+/* register bits - H_HPG_CSR */
+#define H_HPG_CSR_PGIHEXR       0x00000001
+#define H_HPG_CSR_PGI           0x00000002
+
 #endif /* _MEI_HW_MEI_REGS_H_ */