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mei: me: drop harmful wait optimization 

commit 07cd7be3d92eeeae1f92a017f2cfe4fdd9256526 upstream.

It my take time till ME_RDY will be cleared after the reset,
so we cannot check the bit before we got the interrupt

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>
This commit is contained in:
Tomas Winkler 2014-05-12 12:19:40 +03:00 committed by Greg Kroah-Hartman
parent 2290f5a6ee
commit 310c6221b9
1 changed files with 1 additions and 3 deletions
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4
drivers/misc/mei/hw-me.c
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@ -183,6 +183,7 @@ static void mei_me_hw_reset(struct mei_device *dev, bool intr_enable)
else
hcsr &= ~H_IE;
dev->recvd_hw_ready = false;
mei_me_reg_write(hw, H_CSR, hcsr);
if (dev->dev_state == MEI_DEV_POWER_DOWN)
@ -233,10 +234,7 @@ static bool mei_me_hw_is_ready(struct mei_device *dev)
static int mei_me_hw_ready_wait(struct mei_device *dev)
{
int err;
if (mei_me_hw_is_ready(dev))
return 0;
dev->recvd_hw_ready = false;
mutex_unlock(&dev->device_lock);
err = wait_event_interruptible_timeout(dev->wait_hw_ready,
dev->recvd_hw_ready,