Release 4.4.18-openpower1
- v4.4.18 stable release
- drop 'scsi: ignore errors from scsi_dh_add_device()' as this is
included in the upstream stable release
- drop 'drivers/drm/ast: Update VGA Ownership register value' as
this was found to not fix the issue it was claimed to have fixed
Signed-off-by: Joel Stanley <joel@jms.id.au>
(cherry picked from commit eeef14f22c0852a91d13e9f6c00df070f7facb8c)
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
diff --git a/openpower/linux/0007-tty-hvc-Use-opal-irqchip-interface-if-available.patch b/openpower/linux/0007-tty-hvc-Use-opal-irqchip-interface-if-available.patch
new file mode 100644
index 0000000..fac5f87
--- /dev/null
+++ b/openpower/linux/0007-tty-hvc-Use-opal-irqchip-interface-if-available.patch
@@ -0,0 +1,38 @@
+From 07f6dc8103199529706a09d1ad0d7a3957e4ca69 Mon Sep 17 00:00:00 2001
+From: Samuel Mendoza-Jonas <sam@mendozajonas.com>
+Date: Wed, 13 Jul 2016 11:15:42 +1000
+Subject: [PATCH 7/9] tty/hvc: Use opal irqchip interface if available
+
+Update the hvc driver to use the OPAL irqchip if made available by the
+running firmware. If it is not present, the driver falls back to the
+existing OPAL event number.
+
+Signed-off-by: Samuel Mendoza-Jonas <sam@mendozajonas.com>
+Cc: <stable@vger.kernel.org> # 4.1.x-
+Signed-off-by: Joel Stanley <joel@jms.id.au>
+---
+ drivers/tty/hvc/hvc_opal.c | 8 +++++++-
+ 1 file changed, 7 insertions(+), 1 deletion(-)
+
+diff --git a/drivers/tty/hvc/hvc_opal.c b/drivers/tty/hvc/hvc_opal.c
+index 47b54c6aefd2..276b796b24e4 100644
+--- a/drivers/tty/hvc/hvc_opal.c
++++ b/drivers/tty/hvc/hvc_opal.c
+@@ -214,7 +214,13 @@ static int hvc_opal_probe(struct platform_device *dev)
+ dev->dev.of_node->full_name,
+ boot ? " (boot console)" : "");
+
+- irq = opal_event_request(ilog2(OPAL_EVENT_CONSOLE_INPUT));
++ irq = irq_of_parse_and_map(dev->dev.of_node, 0);
++ if (!irq) {
++ pr_info("hvc%d: No interrupts property, using OPAL event\n",
++ termno);
++ irq = opal_event_request(ilog2(OPAL_EVENT_CONSOLE_INPUT));
++ }
++
+ if (!irq) {
+ pr_err("hvc_opal: Unable to map interrupt for device %s\n",
+ dev->dev.of_node->full_name);
+--
+2.8.1
+