3.11.0-0.rc7.git4.1.fc21.gnu

1 files changed, 104 insertions, 0 deletions

diff --git a/freed-ora/current/master/mei-me-fix-hardware-reset-flow.patch b/freed-ora/current/master/mei-me-fix-hardware-reset-flow.patch
new file mode 100644
index 000000000..b0c6c34b5
--- /dev/null
+++ b/freed-ora/current/master/mei-me-fix-hardware-reset-flow.patch
@@ -0,0 +1,104 @@
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+From:	Tomas Winkler <tomas.winkler@intel.com>
+To:	gregkh@linuxfoundation.org
+Cc:	arnd@arndb.de, linux-kernel@vger.kernel.org,
+	Tomas Winkler <tomas.winkler@intel.com>,
+	stable@vger.kernel.org, Shuah Khan <shuah.kh@samsung.com>,
+	Konstantin Khlebnikov <khlebnikov@openvz.org>
+Subject: [3.10][PATCH 4/4] mei: me: fix hardware reset flow
+Date:	Sun, 25 Aug 2013 12:49:49 +0300
+Message-Id: <1377424189-5508-5-git-send-email-tomas.winkler@intel.com>
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+stable: 3.10
+commit ff96066e3171acdea356b331163495957cb833d0 char-misc
+
+
+Both H_IS and H_IE needs to be set to receive H_RDY
+interrupt
+
+1. Assert H_IS to clear the interrupts during hw reset
+and use mei_me_reg_write instead of mei_hcsr_set as the later
+strips down the H_IS
+
+2. fix interrupt disablement embarrassing typo
+  hcsr |= ~H_IE -> hcsr &= ~H_IE;
+this will remove the unwanted interrupt on power down
+
+3. remove useless debug print outs
+
+Cc: stable@vger.kernel.org
+Cc: Shuah Khan <shuah.kh@samsung.com>
+Cc: Konstantin Khlebnikov <khlebnikov@openvz.org>
+Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+Conflicts:
+	drivers/misc/mei/hw-me.c
+
+---
+ drivers/misc/mei/hw-me.c | 8 +++-----
+ 1 file changed, 3 insertions(+), 5 deletions(-)
+
+diff --git a/drivers/misc/mei/hw-me.c b/drivers/misc/mei/hw-me.c
+index 700fe55..1bf3f8b 100644
+--- a/drivers/misc/mei/hw-me.c
++++ b/drivers/misc/mei/hw-me.c
+@@ -176,16 +176,14 @@ static void 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);
+ 
+-	dev_dbg(&dev->pdev->dev, "before reset HCSR = 0x%08x.\n", hcsr);
+-
+-	hcsr |= (H_RST | H_IG);
++	hcsr |= H_RST | H_IG | H_IS;
+ 
+ 	if (intr_enable)
+ 		hcsr |= H_IE;
+ 	else
+-		hcsr |= ~H_IE;
++		hcsr &= ~H_IE;
+ 
+-	mei_hcsr_set(hw, hcsr);
++	mei_me_reg_write(hw, H_CSR, hcsr);
+ 
+ 	if (dev->dev_state == MEI_DEV_POWER_DOWN)
+ 		mei_me_hw_reset_release(dev);
+-- 
+1.8.1.2
+
+--
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