[PATCH] tpm: return chip from tpm_register_hardware
Changes in the 1.2 TPM Specification make it necessary to update some fields
of the chip structure in the initialization function after it is registered
with tpm.c thus tpm_register_hardware was modified to return a pointer to the
structure. This patch makes that change and the associated changes in
tpm_atmel and tpm_nsc. The changes to tpm_infineon will be coming in a patch
from Marcel Selhorst.
Signed-off-by: Kylene Hall <kjhall@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h
index a203963..4f00534 100644
--- a/drivers/char/tpm/tpm.h
+++ b/drivers/char/tpm/tpm.h
@@ -48,9 +48,9 @@
struct tpm_chip;
struct tpm_vendor_specific {
- u8 req_complete_mask;
- u8 req_complete_val;
- u8 req_canceled;
+ const u8 req_complete_mask;
+ const u8 req_complete_val;
+ const u8 req_canceled;
void __iomem *iobase; /* ioremapped address */
unsigned long base; /* TPM base address */
@@ -100,8 +100,8 @@
outb(value & 0xFF, base+1);
}
-extern int tpm_register_hardware(struct device *,
- struct tpm_vendor_specific *);
+extern struct tpm_chip* tpm_register_hardware(struct device *,
+ const struct tpm_vendor_specific *);
extern int tpm_open(struct inode *, struct file *);
extern int tpm_release(struct inode *, struct file *);
extern ssize_t tpm_write(struct file *, const char __user *, size_t,