[MIPS] VPE: Sprinkle device model code into code to make udev happier.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 21 insertions, 1 deletions

diff --git a/arch/mips/kernel/vpe.c b/arch/mips/kernel/vpe.c
index 4596249..4e832da 100644
--- a/arch/mips/kernel/vpe.c
+++ b/arch/mips/kernel/vpe.c
@@ -29,6 +29,7 @@
  */
 
 #include <linux/kernel.h>
+#include <linux/device.h>
 #include <linux/module.h>
 #include <linux/fs.h>
 #include <linux/init.h>
@@ -48,6 +49,7 @@
 #include <asm/cacheflush.h>
 #include <asm/atomic.h>
 #include <asm/cpu.h>
+#include <asm/mips_mt.h>
 #include <asm/processor.h>
 #include <asm/system.h>
 #include <asm/vpe.h>
@@ -64,6 +66,7 @@ typedef void *vpe_handle;
 
 static char module_name[] = "vpe";
 static int major;
+static const int minor = 1;	/* fixed for now  */
 
 #ifdef CONFIG_MIPS_APSP_KSPD
  static struct kspd_notifications kspd_events;
@@ -1365,12 +1368,15 @@ static void kspd_sp_exit( int sp_id)
 }
 #endif
 
+static struct device *vpe_dev;
+
 static int __init vpe_module_init(void)
 {
 	struct vpe *v = NULL;
+	struct device *dev;
 	struct tc *t;
 	unsigned long val;
-	int i;
+	int i, err;
 
 	if (!cpu_has_mipsmt) {
 		printk("VPE loader: not a MIPS MT capable processor\n");
@@ -1383,6 +1389,14 @@ static int __init vpe_module_init(void)
 		return major;
 	}
 
+	dev = device_create(mt_class, NULL, MKDEV(major, minor),
+	                    "tc%d", minor);
+	if (IS_ERR(dev)) {
+		err = PTR_ERR(dev);
+		goto out_chrdev;
+	}
+	vpe_dev = dev;
+
 	dmt();
 	dvpe();
 
@@ -1478,6 +1492,11 @@ static int __init vpe_module_init(void)
 	kspd_events.kspd_sp_exit = kspd_sp_exit;
 #endif
 	return 0;
+
+out_chrdev:
+	unregister_chrdev(major, module_name);
+
+	return err;
 }
 
 static void __exit vpe_module_exit(void)
@@ -1490,6 +1509,7 @@ static void __exit vpe_module_exit(void)
 		}
 	}
 
+	device_destroy(mt_class, MKDEV(major, minor));
 	unregister_chrdev(major, module_name);
 }