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Char/Misc driver fixes for 3.19-rc5

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Here are 3 small driver fixes for reported issues for 3.19-rc5.  All of
 these have been in linux-next for a while with no reported problems.
 
 Signed-off-by: Greg Kroah-Hartman <[email protected]>
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Merge tag 'char-misc-3.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver fixes from Greg KH:
 "Here are three small driver fixes for reported issues for 3.19-rc5.

  All of these have been in linux-next for a while with no reported
  problems"

* tag 'char-misc-3.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  mcb: mcb-pci: Only remap the 1st 0x200 bytes of BAR 0
  mei: add ABI documentation for fw_status exported through sysfs
  mei: clean reset bit before reset
This commit is contained in:
Linus Torvalds 2015-01-17 08:18:08 +13:00
commit 7ad4b4ae57
4 changed files with 46 additions and 9 deletions
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12
drivers/misc/mei/hw-me.c
View file

@ -234,6 +234,18 @@ static int mei_me_hw_reset(struct mei_device *dev, bool intr_enable)
struct mei_me_hw *hw = to_me_hw(dev);
u32 hcsr = mei_hcsr_read(hw);
/* H_RST may be found lit before reset is started,
* for example if preceding reset flow hasn't completed.
* In that case asserting H_RST will be ignored, therefore
* we need to clean H_RST bit to start a successful reset sequence.
*/
if ((hcsr & H_RST) == H_RST) {
dev_warn(dev->dev, "H_RST is set = 0x%08X", hcsr);
hcsr &= ~H_RST;
mei_me_reg_write(hw, H_CSR, hcsr);
hcsr = mei_hcsr_read(hw);
}
hcsr |= H_RST | H_IG | H_IS;
if (intr_enable)