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mei: abstract host and device readieness

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Add mei_host_set_ready function to enable the device
and is_ready function to query the host and me readiness

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Tomas Winkler
2013-01-08 23:07:29 +02:00
committed by Greg Kroah-Hartman
parent 9ea73ddd4f
commit 115ba28c5e
4 changed files with 54 additions and 18 deletions
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14
drivers/misc/mei/init.c
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@@ -131,18 +131,18 @@ int mei_hw_init(struct mei_device *dev)
goto out;
}
if (!(((dev->host_hw_state & H_RDY) == H_RDY) &&
((dev->me_hw_state & ME_RDY_HRA) == ME_RDY_HRA))) {
if (!(mei_host_is_ready(dev) && mei_me_is_ready(dev))) {
dev->dev_state = MEI_DEV_DISABLED;
dev_dbg(&dev->pdev->dev,
"host_hw_state = 0x%08x, me_hw_state = 0x%08x.\n",
dev->host_hw_state, dev->me_hw_state);
if (!(dev->host_hw_state & H_RDY))
dev_dbg(&dev->pdev->dev, "host turn off H_RDY.\n");
if (!mei_host_is_ready(dev))
dev_dbg(&dev->pdev->dev, "host is not ready.\n");
if (!(dev->me_hw_state & ME_RDY_HRA))
dev_dbg(&dev->pdev->dev, "ME turn off ME_RDY.\n");
if (!mei_me_is_ready(dev))
dev_dbg(&dev->pdev->dev, "ME is not ready.\n");
dev_err(&dev->pdev->dev, "link layer initialization failed.\n");
ret = -ENODEV;
@@ -159,9 +159,7 @@ int mei_hw_init(struct mei_device *dev)
dev->recvd_msg = false;
dev_dbg(&dev->pdev->dev, "host_hw_state = 0x%08x, me_hw_state = 0x%08x.\n",
dev->host_hw_state, dev->me_hw_state);
dev_dbg(&dev->pdev->dev, "ME turn on ME_RDY and host turn on H_RDY.\n");
dev_dbg(&dev->pdev->dev, "link layer has been established.\n");
dev_dbg(&dev->pdev->dev, "MEI start success.\n");
ret = 0;
out: