mei: me: fix reset state machine
ME HW ready bit is down after hw reset was asserted or on error. Only on error we need to enter the reset flow, additional reset need to be prevented when reset was triggered during initialization , power up/down or a reset is already in progress Tested-by: Shuah Khan <shuah.kh@samsung.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -483,7 +483,9 @@ irqreturn_t mei_me_irq_thread_handler(int irq, void *dev_id)
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/* check if ME wants a reset */
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if (!mei_hw_is_ready(dev) &&
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dev->dev_state != MEI_DEV_RESETTING &&
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dev->dev_state != MEI_DEV_INITIALIZING) {
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dev->dev_state != MEI_DEV_INITIALIZING &&
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dev->dev_state != MEI_DEV_POWER_DOWN &&
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dev->dev_state != MEI_DEV_POWER_UP) {
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dev_dbg(&dev->pdev->dev, "FW not ready.\n");
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mei_reset(dev, 1);
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mutex_unlock(&dev->device_lock);
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