tpm: Store TPM vendor ID

Store the TPM vendor ID for later use.

Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com>

2 files changed, 3 insertions, 0 deletions

diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h
index cbee6319be75..ef4ba5fcf7d9 100644
--- a/drivers/char/tpm/tpm.h
+++ b/drivers/char/tpm/tpm.h
@@ -105,6 +105,8 @@ struct tpm_vendor_specific {
 
         wait_queue_head_t read_queue;
         wait_queue_head_t int_queue;
+
+        u16 manufacturer_id;
 };
 
 #define TPM_VPRIV(c)    (c)->vendor.priv
diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c
index 74ce2d1f08b4..3615d210e603 100644
--- a/drivers/char/tpm/tpm_tis.c
+++ b/drivers/char/tpm/tpm_tis.c
@@ -534,6 +534,7 @@ static int tpm_tis_init(struct device *dev, resource_size_t start,
         }
 
         vendor = ioread32(chip->vendor.iobase + TPM_DID_VID(0));
+        chip->vendor.manufacturer_id = vendor;
 
         dev_info(dev,
                  "1.2 TPM (device-id 0x%X, rev-id %d)\n",