From 9310f61a94ec779b2919864c7e66241ff80fe96d Mon Sep 17 00:00:00 2001 From: Tomas Winkler Date: Wed, 17 Jul 2013 15:13:14 +0300 Subject: mei: hbm: fix typo in error message writet -> write Tested-by: Shuah Khan Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman --- drivers/misc/mei/hbm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/misc') diff --git a/drivers/misc/mei/hbm.c b/drivers/misc/mei/hbm.c index f9296abcf02a..6127ab64bb39 100644 --- a/drivers/misc/mei/hbm.c +++ b/drivers/misc/mei/hbm.c @@ -167,7 +167,7 @@ int mei_hbm_start_req(struct mei_device *dev) dev->hbm_state = MEI_HBM_IDLE; if (mei_write_message(dev, mei_hdr, dev->wr_msg.data)) { - dev_err(&dev->pdev->dev, "version message writet failed\n"); + dev_err(&dev->pdev->dev, "version message write failed\n"); dev->dev_state = MEI_DEV_RESETTING; mei_reset(dev, 1); return -ENODEV; -- cgit v1.2.2 From 315a383ad7dbd484fafb93ef08038e3dbafbb7a8 Mon Sep 17 00:00:00 2001 From: Tomas Winkler Date: Wed, 17 Jul 2013 15:13:15 +0300 Subject: 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 Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman --- drivers/misc/mei/hw-me.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers/misc') diff --git a/drivers/misc/mei/hw-me.c b/drivers/misc/mei/hw-me.c index e4f8dec4dc3c..a0e19e61e7df 100644 --- a/drivers/misc/mei/hw-me.c +++ b/drivers/misc/mei/hw-me.c @@ -483,7 +483,9 @@ irqreturn_t mei_me_irq_thread_handler(int irq, void *dev_id) /* check if ME wants a reset */ if (!mei_hw_is_ready(dev) && dev->dev_state != MEI_DEV_RESETTING && - dev->dev_state != MEI_DEV_INITIALIZING) { + dev->dev_state != MEI_DEV_INITIALIZING && + dev->dev_state != MEI_DEV_POWER_DOWN && + dev->dev_state != MEI_DEV_POWER_UP) { dev_dbg(&dev->pdev->dev, "FW not ready.\n"); mei_reset(dev, 1); mutex_unlock(&dev->device_lock); -- cgit v1.2.2 From 99f22c4ef24cf87b0dae6aabe6b5e620b62961d9 Mon Sep 17 00:00:00 2001 From: Tomas Winkler Date: Wed, 17 Jul 2013 15:13:16 +0300 Subject: mei: don't have to clean the state on power up When powering up, we don't have to clean up the device state nothing is connected. Tested-by: Shuah Khan Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman --- drivers/misc/mei/init.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/misc') diff --git a/drivers/misc/mei/init.c b/drivers/misc/mei/init.c index ed1d75203af6..e6f16f83ecde 100644 --- a/drivers/misc/mei/init.c +++ b/drivers/misc/mei/init.c @@ -148,7 +148,8 @@ void mei_reset(struct mei_device *dev, int interrupts_enabled) dev->hbm_state = MEI_HBM_IDLE; - if (dev->dev_state != MEI_DEV_INITIALIZING) { + if (dev->dev_state != MEI_DEV_INITIALIZING && + dev->dev_state != MEI_DEV_POWER_UP) { if (dev->dev_state != MEI_DEV_DISABLED && dev->dev_state != MEI_DEV_POWER_DOWN) dev->dev_state = MEI_DEV_RESETTING; -- cgit v1.2.2 From dab9bf41b23fe700c4a74133e41eb6a21706031e Mon Sep 17 00:00:00 2001 From: Tomas Winkler Date: Wed, 17 Jul 2013 15:13:17 +0300 Subject: mei: me: fix waiting for hw ready 1. MEI_INTEROP_TIMEOUT is in seconds not in jiffies so we use mei_secs_to_jiffies macro While cold boot is fast this is relevant in resume 2. wait_event_interruptible_timeout can return with -ERESTARTSYS so do not override it with -ETIMEDOUT 3.Adjust error message Tested-by: Shuah Khan Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman --- drivers/misc/mei/hw-me.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) (limited to 'drivers/misc') diff --git a/drivers/misc/mei/hw-me.c b/drivers/misc/mei/hw-me.c index a0e19e61e7df..b22c7e247225 100644 --- a/drivers/misc/mei/hw-me.c +++ b/drivers/misc/mei/hw-me.c @@ -239,14 +239,18 @@ static int mei_me_hw_ready_wait(struct mei_device *dev) 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, MEI_INTEROP_TIMEOUT); + dev->recvd_hw_ready, + mei_secs_to_jiffies(MEI_INTEROP_TIMEOUT)); mutex_lock(&dev->device_lock); if (!err && !dev->recvd_hw_ready) { + if (!err) + err = -ETIMEDOUT; dev_err(&dev->pdev->dev, - "wait hw ready failed. status = 0x%x\n", err); - return -ETIMEDOUT; + "wait hw ready failed. status = %d\n", err); + return err; } dev->recvd_hw_ready = false; -- cgit v1.2.2