[PATCH] tpm: add HID module parameter
I recently found that not all BIOS manufacturers are using the specified
generic PNP id in their TPM ACPI table entry. I have added the vendor
specific IDs that I know about and added a module parameter that a user can
specify another HID to the probe list if their device isn't being found by the
default list.
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_tis.c b/drivers/char/tpm/tpm_tis.c
index 447f763..b9cae9a 100644
--- a/drivers/char/tpm/tpm_tis.c
+++ b/drivers/char/tpm/tpm_tis.c
@@ -610,7 +610,13 @@
static struct pnp_device_id tpm_pnp_tbl[] __devinitdata = {
{"PNP0C31", 0}, /* TPM */
- {"", 0}
+ {"ATM1200", 0}, /* Atmel */
+ {"IFX0102", 0}, /* Infineon */
+ {"BCM0101", 0}, /* Broadcom */
+ {"NSC1200", 0}, /* National */
+ /* Add new here */
+ {"", 0}, /* User Specified */
+ {"", 0} /* Terminator */
};
static struct pnp_driver tis_pnp_driver = {
@@ -621,6 +627,11 @@
.resume = tpm_tis_pnp_resume,
};
+#define TIS_HID_USR_IDX sizeof(tpm_pnp_tbl)/sizeof(struct pnp_device_id) -2
+module_param_string(hid, tpm_pnp_tbl[TIS_HID_USR_IDX].id,
+ sizeof(tpm_pnp_tbl[TIS_HID_USR_IDX].id), 0444);
+MODULE_PARM_DESC(hid, "Set additional specific HID for this driver to probe");
+
static int __init init_tis(void)
{
return pnp_register_driver(&tis_pnp_driver);