1 files changed, 53 insertions, 0 deletions

diff --git a/recipes-kernel/linux/linux-ti33x-psp-3.2/3.2.3/0052-jsm-Fixed-EEH-recovery-error.patch b/recipes-kernel/linux/linux-ti33x-psp-3.2/3.2.3/0052-jsm-Fixed-EEH-recovery-error.patch
new file mode 100644
index 00000000..4836cc1b
--- /dev/null
+++ b/recipes-kernel/linux/linux-ti33x-psp-3.2/3.2.3/0052-jsm-Fixed-EEH-recovery-error.patch
@@ -0,0 +1,53 @@
+From a4bb82f827dd715b666d2cdf9cae6643da638974 Mon Sep 17 00:00:00 2001
+From: Lucas Kannebley Tavares <lucaskt@linux.vnet.ibm.com>
+Date: Mon, 9 Jan 2012 10:58:06 -0200
+Subject: [PATCH 52/90] jsm: Fixed EEH recovery error
+
+commit 26aa38cafae0dbef3b2fe75ea487c83313c36d45 upstream.
+
+There was an error on the jsm driver that would cause it to be unable to
+recover after a second error is detected.
+
+At the first error, the device recovers properly:
+
+[72521.485691] EEH: Detected PCI bus error on device 0003:02:00.0
+[72521.485695] EEH: This PCI device has failed 1 times in the last hour:
+...
+[72532.035693] ttyn3 at MMIO 0x0 (irq = 49) is a jsm
+[72532.105689] jsm: Port 3 added
+
+However, at the second error, it cascades until EEH disables the device:
+
+[72631.229549] Call Trace:
+...
+[72641.725687] jsm: Port 3 added
+[72641.725695] EEH: Detected PCI bus error on device 0003:02:00.0
+[72641.725698] EEH: This PCI device has failed 3 times in the last hour:
+
+It was caused because the PCI state was not being saved after the first
+restore. Therefore, at the second recovery the PCI state would not be
+restored.
+
+Signed-off-by: Lucas Kannebley Tavares <lucaskt@linux.vnet.ibm.com>
+Signed-off-by: Breno Leitao <brenohl@br.ibm.com>
+Acked-by: Thadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/tty/serial/jsm/jsm_driver.c |    1 +
+ 1 files changed, 1 insertions(+), 0 deletions(-)
+
+diff --git a/drivers/tty/serial/jsm/jsm_driver.c b/drivers/tty/serial/jsm/jsm_driver.c
+index 7c867a0..7545fe1 100644
+--- a/drivers/tty/serial/jsm/jsm_driver.c
++++ b/drivers/tty/serial/jsm/jsm_driver.c
+@@ -251,6 +251,7 @@ static void jsm_io_resume(struct pci_dev *pdev)
+        struct jsm_board *brd = pci_get_drvdata(pdev);
+ 
+        pci_restore_state(pdev);
++       pci_save_state(pdev);
+ 
+        jsm_uart_port_init(brd);
+ }
+-- 
+1.7.7.4
+