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-rw-r--r--drivers/char/hw_random/n2-drv.c29
-rw-r--r--drivers/char/hw_random/n2rng.h2
2 files changed, 18 insertions, 13 deletions
diff --git a/drivers/char/hw_random/n2-drv.c b/drivers/char/hw_random/n2-drv.c
index ac6739e085e3..c3de70de00d4 100644
--- a/drivers/char/hw_random/n2-drv.c
+++ b/drivers/char/hw_random/n2-drv.c
@@ -1,6 +1,6 @@
1/* n2-drv.c: Niagara-2 RNG driver. 1/* n2-drv.c: Niagara-2 RNG driver.
2 * 2 *
3 * Copyright (C) 2008 David S. Miller <davem@davemloft.net> 3 * Copyright (C) 2008, 2011 David S. Miller <davem@davemloft.net>
4 */ 4 */
5 5
6#include <linux/kernel.h> 6#include <linux/kernel.h>
@@ -22,8 +22,8 @@
22 22
23#define DRV_MODULE_NAME "n2rng" 23#define DRV_MODULE_NAME "n2rng"
24#define PFX DRV_MODULE_NAME ": " 24#define PFX DRV_MODULE_NAME ": "
25#define DRV_MODULE_VERSION "0.1" 25#define DRV_MODULE_VERSION "0.2"
26#define DRV_MODULE_RELDATE "May 15, 2008" 26#define DRV_MODULE_RELDATE "July 27, 2011"
27 27
28static char version[] __devinitdata = 28static char version[] __devinitdata =
29 DRV_MODULE_NAME ".c:v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n"; 29 DRV_MODULE_NAME ".c:v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
@@ -623,14 +623,14 @@ static const struct of_device_id n2rng_match[];
623static int __devinit n2rng_probe(struct platform_device *op) 623static int __devinit n2rng_probe(struct platform_device *op)
624{ 624{
625 const struct of_device_id *match; 625 const struct of_device_id *match;
626 int victoria_falls; 626 int multi_capable;
627 int err = -ENOMEM; 627 int err = -ENOMEM;
628 struct n2rng *np; 628 struct n2rng *np;
629 629
630 match = of_match_device(n2rng_match, &op->dev); 630 match = of_match_device(n2rng_match, &op->dev);
631 if (!match) 631 if (!match)
632 return -EINVAL; 632 return -EINVAL;
633 victoria_falls = (match->data != NULL); 633 multi_capable = (match->data != NULL);
634 634
635 n2rng_driver_version(); 635 n2rng_driver_version();
636 np = kzalloc(sizeof(*np), GFP_KERNEL); 636 np = kzalloc(sizeof(*np), GFP_KERNEL);
@@ -640,8 +640,8 @@ static int __devinit n2rng_probe(struct platform_device *op)
640 640
641 INIT_DELAYED_WORK(&np->work, n2rng_work); 641 INIT_DELAYED_WORK(&np->work, n2rng_work);
642 642
643 if (victoria_falls) 643 if (multi_capable)
644 np->flags |= N2RNG_FLAG_VF; 644 np->flags |= N2RNG_FLAG_MULTI;
645 645
646 err = -ENODEV; 646 err = -ENODEV;
647 np->hvapi_major = 2; 647 np->hvapi_major = 2;
@@ -658,10 +658,10 @@ static int __devinit n2rng_probe(struct platform_device *op)
658 } 658 }
659 } 659 }
660 660
661 if (np->flags & N2RNG_FLAG_VF) { 661 if (np->flags & N2RNG_FLAG_MULTI) {
662 if (np->hvapi_major < 2) { 662 if (np->hvapi_major < 2) {
663 dev_err(&op->dev, "VF RNG requires HVAPI major " 663 dev_err(&op->dev, "multi-unit-capable RNG requires "
664 "version 2 or later, got %lu\n", 664 "HVAPI major version 2 or later, got %lu\n",
665 np->hvapi_major); 665 np->hvapi_major);
666 goto out_hvapi_unregister; 666 goto out_hvapi_unregister;
667 } 667 }
@@ -688,8 +688,8 @@ static int __devinit n2rng_probe(struct platform_device *op)
688 goto out_free_units; 688 goto out_free_units;
689 689
690 dev_info(&op->dev, "Found %s RNG, units: %d\n", 690 dev_info(&op->dev, "Found %s RNG, units: %d\n",
691 ((np->flags & N2RNG_FLAG_VF) ? 691 ((np->flags & N2RNG_FLAG_MULTI) ?
692 "Victoria Falls" : "Niagara2"), 692 "multi-unit-capable" : "single-unit"),
693 np->num_units); 693 np->num_units);
694 694
695 np->hwrng.name = "n2rng"; 695 np->hwrng.name = "n2rng";
@@ -751,6 +751,11 @@ static const struct of_device_id n2rng_match[] = {
751 .compatible = "SUNW,vf-rng", 751 .compatible = "SUNW,vf-rng",
752 .data = (void *) 1, 752 .data = (void *) 1,
753 }, 753 },
754 {
755 .name = "random-number-generator",
756 .compatible = "SUNW,kt-rng",
757 .data = (void *) 1,
758 },
754 {}, 759 {},
755}; 760};
756MODULE_DEVICE_TABLE(of, n2rng_match); 761MODULE_DEVICE_TABLE(of, n2rng_match);
diff --git a/drivers/char/hw_random/n2rng.h b/drivers/char/hw_random/n2rng.h
index 4bea07f30978..f244ac89087f 100644
--- a/drivers/char/hw_random/n2rng.h
+++ b/drivers/char/hw_random/n2rng.h
@@ -68,7 +68,7 @@ struct n2rng {
68 struct platform_device *op; 68 struct platform_device *op;
69 69
70 unsigned long flags; 70 unsigned long flags;
71#define N2RNG_FLAG_VF 0x00000001 /* Victoria Falls RNG, else N2 */ 71#define N2RNG_FLAG_MULTI 0x00000001 /* Multi-unit capable RNG */
72#define N2RNG_FLAG_CONTROL 0x00000002 /* Operating in control domain */ 72#define N2RNG_FLAG_CONTROL 0x00000002 /* Operating in control domain */
73#define N2RNG_FLAG_READY 0x00000008 /* Ready for hw-rng layer */ 73#define N2RNG_FLAG_READY 0x00000008 /* Ready for hw-rng layer */
74#define N2RNG_FLAG_SHUTDOWN 0x00000010 /* Driver unregistering */ 74#define N2RNG_FLAG_SHUTDOWN 0x00000010 /* Driver unregistering */