summaryrefslogtreecommitdiffstats
path: root/drivers/char/tpm/tpm_atmel.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/char/tpm/tpm_atmel.h')
-rw-r--r--drivers/char/tpm/tpm_atmel.h22
1 files changed, 12 insertions, 10 deletions
diff --git a/drivers/char/tpm/tpm_atmel.h b/drivers/char/tpm/tpm_atmel.h
index 3c5b9a8..d3478aa 100644
--- a/drivers/char/tpm/tpm_atmel.h
+++ b/drivers/char/tpm/tpm_atmel.h
@@ -27,12 +27,14 @@
#define atmel_putb(val, chip, offset) writeb(val, chip->vendor->iobase + offset)
#define atmel_request_region request_mem_region
#define atmel_release_region release_mem_region
-static inline void atmel_put_base_addr(struct tpm_vendor_specific *vendor)
+
+static inline void atmel_put_base_addr(struct tpm_vendor_specific
+ *vendor)
{
iounmap(vendor->iobase);
}
-static int atmel_get_base_addr(struct tpm_vendor_specific *vendor)
+static void __iomem * atmel_get_base_addr(struct tpm_vendor_specific *vendor)
{
struct device_node *dn;
unsigned long address, size;
@@ -44,11 +46,11 @@ static int atmel_get_base_addr(struct tpm_vendor_specific *vendor)
dn = of_find_node_by_name(NULL, "tpm");
if (!dn)
- return 1;
+ return NULL;
if (!device_is_compatible(dn, "AT97SC3201")) {
of_node_put(dn);
- return 1;
+ return NULL;
}
reg = (unsigned int *) get_property(dn, "reg", &reglen);
@@ -71,8 +73,7 @@ static int atmel_get_base_addr(struct tpm_vendor_specific *vendor)
vendor->base = address;
vendor->region_size = size;
- vendor->iobase = ioremap(address, size);
- return 0;
+ return ioremap(vendor->base, vendor->region_size);
}
#else
#define atmel_getb(chip, offset) inb(chip->vendor->base + offset)
@@ -105,18 +106,19 @@ static int atmel_verify_tpm11(void)
return 0;
}
-static inline void atmel_put_base_addr(struct tpm_vendor_specific *vendor)
+static inline void atmel_put_base_addr(struct tpm_vendor_specific
+ *vendor)
{
}
/* Determine where to talk to device */
-static unsigned long atmel_get_base_addr(struct tpm_vendor_specific
+static void __iomem * atmel_get_base_addr(struct tpm_vendor_specific
*vendor)
{
int lo, hi;
if (atmel_verify_tpm11() != 0)
- return 1;
+ return NULL;
lo = tpm_read_index(TPM_ADDR, TPM_ATMEL_BASE_ADDR_LO);
hi = tpm_read_index(TPM_ADDR, TPM_ATMEL_BASE_ADDR_HI);
@@ -124,6 +126,6 @@ static unsigned long atmel_get_base_addr(struct tpm_vendor_specific
vendor->base = (hi << 8) | lo;
vendor->region_size = 2;
- return 0;
+ return ioport_map(vendor->base, vendor->region_size);
}
#endif
OpenPOWER on IntegriCloud