summaryrefslogtreecommitdiffstats
path: root/arch/powerpc/platforms/powernv/opal.c
diff options
context:
space:
mode:
authorVasant Hegde2013-08-27 11:39:52 +0200
committerBenjamin Herrenschmidt2013-10-30 06:09:34 +0100
commit6f68b5e2c6c04e9cf0e3074f884da36957ce9aae (patch)
treebb2f83cfc00a044d5c4f3926643a1000c4007799 /arch/powerpc/platforms/powernv/opal.c
parentpowerpc: Add VMX optimised xor for RAID5 (diff)
downloadkernel-qcow2-linux-6f68b5e2c6c04e9cf0e3074f884da36957ce9aae.tar.gz
kernel-qcow2-linux-6f68b5e2c6c04e9cf0e3074f884da36957ce9aae.tar.xz
kernel-qcow2-linux-6f68b5e2c6c04e9cf0e3074f884da36957ce9aae.zip
powerpc/powernv: Create opal sysfs directory
Create /sys/firmware/opal directory. We wil use this interface to fetch opal error logs, firmware update, etc. Signed-off-by: Vasant Hegde <hegdevasant@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/platforms/powernv/opal.c')
-rw-r--r--arch/powerpc/platforms/powernv/opal.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/powernv/opal.c b/arch/powerpc/platforms/powernv/opal.c
index 09336f0c54c5..37f06580709a 100644
--- a/arch/powerpc/platforms/powernv/opal.c
+++ b/arch/powerpc/platforms/powernv/opal.c
@@ -17,11 +17,15 @@
#include <linux/interrupt.h>
#include <linux/notifier.h>
#include <linux/slab.h>
+#include <linux/kobject.h>
#include <asm/opal.h>
#include <asm/firmware.h>
#include "powernv.h"
+/* /sys/firmware/opal */
+struct kobject *opal_kobj;
+
struct opal {
u64 base;
u64 entry;
@@ -375,6 +379,17 @@ static irqreturn_t opal_interrupt(int irq, void *data)
return IRQ_HANDLED;
}
+static int opal_sysfs_init(void)
+{
+ opal_kobj = kobject_create_and_add("opal", firmware_kobj);
+ if (!opal_kobj) {
+ pr_warn("kobject_create_and_add opal failed\n");
+ return -ENOMEM;
+ }
+
+ return 0;
+}
+
static int __init opal_init(void)
{
struct device_node *np, *consoles;
@@ -420,6 +435,10 @@ static int __init opal_init(void)
" (0x%x)\n", rc, irq, hwirq);
opal_irqs[i] = irq;
}
+
+ /* Create "opal" kobject under /sys/firmware */
+ rc = opal_sysfs_init();
+
return 0;
}
subsys_initcall(opal_init);