mei: make host csr and me csr internal to hw-me

Move csr reading into me hardware functional calls.
Since we gave up on registers caching we remove some of the unnecessary
queries in mei_hw_init ane mei_reset functions.

We add mei_hw_config function to wrap up host buffer depth configuration.

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

1 files changed, 0 insertions, 4 deletions

diff --git a/drivers/misc/mei/interrupt.c b/drivers/misc/mei/interrupt.c
index 27374b6b6424..b04ed9bdf758 100644
--- a/drivers/misc/mei/interrupt.c
+++ b/drivers/misc/mei/interrupt.c
@@ -697,8 +697,6 @@ irqreturn_t mei_interrupt_thread_handler(int irq, void *dev_id)
         if (pci_dev_msi_enabled(dev->pdev))
                 mei_clear_interrupts(dev);
 
-        dev->me_hw_state = mei_mecsr_read(dev);
-
         /* check if ME wants a reset */
         if (!mei_me_is_ready(dev) &&
             dev->dev_state != MEI_DEV_RESETING &&
@@ -709,7 +707,6 @@ irqreturn_t mei_interrupt_thread_handler(int irq, void *dev_id)
                 return IRQ_HANDLED;
         }
 
-        dev->host_hw_state = mei_hcsr_read(dev);
         /*  check if we need to start the dev */
         if (!mei_host_is_ready(dev)) {
                 if (mei_me_is_ready(dev)) {
@@ -746,7 +743,6 @@ irqreturn_t mei_interrupt_thread_handler(int irq, void *dev_id)
         rets = mei_irq_thread_write_handler(dev, &complete_list);
 end:
         dev_dbg(&dev->pdev->dev, "end of bottom half function.\n");
-        dev->host_hw_state = mei_hcsr_read(dev);
         dev->mei_host_buffer_is_empty = mei_hbuf_is_empty(dev);
 
         bus_message_received = false;