mei: revamp writing slot counting

Since txe use doorbell and not circular buffer
we have to cheat in write slot counting, txe always consume all the
slots upon write. In order for it to work we need to track
slots using mei_hbuf_empty_slots() instead of tracking it in mei layer

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/misc/mei/hw-txe.h b/drivers/misc/mei/hw-txe.h
index fdb665f44d5d..0812d98633a4 100644
--- a/drivers/misc/mei/hw-txe.h
+++ b/drivers/misc/mei/hw-txe.h
@@ -46,6 +46,7 @@ struct mei_txe_hw {
         void __iomem *mem_addr[NUM_OF_MEM_BARS];
         u32 aliveness;
         u32 readiness;
+        u32 slots;
 
         wait_queue_head_t wait_aliveness;
         bool recvd_aliveness;