Revert commit e918e570415c ("tpm_tis: Remove the HID IFX0102")

Removing IFX0102 from tpm_tis was not a right move because both tpm_tis
and tpm_infineon use the same device ID. Revert the commit and add a
remark about a bug caused by commit 93e1b7d42e1e ("[PATCH] tpm: add HID
module parameter").

Fixes: e918e570415c ("tpm_tis: Remove the HID IFX0102")
Reported-by: Peter Huewe <peterhuewe@gmx.de>
Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>

diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c
index c58ea10fc92f6ad43ba56948b982dc3a1d350b1d..0b214963539de2ee6977f85344f9b12d3c5dae57 100644 (file)
--- a/drivers/char/tpm/tpm_tis.c
+++ b/drivers/char/tpm/tpm_tis.c
@@ -235,9 +235,17 @@ static int tpm_tis_pnp_init(struct pnp_dev *pnp_dev,
        return tpm_tis_init(&pnp_dev->dev, &tpm_info);
 }
 
+/*
+ * There is a known bug caused by 93e1b7d42e1e ("[PATCH] tpm: add HID module
+ * parameter"). This commit added IFX0102 device ID, which is also used by
+ * tpm_infineon but ignored to add quirks to probe which driver ought to be
+ * used.
+ */
+
 static struct pnp_device_id tpm_pnp_tbl[] = {
        {"PNP0C31", 0},         /* TPM */
        {"ATM1200", 0},         /* Atmel */
+       {"IFX0102", 0},         /* Infineon */
        {"BCM0101", 0},         /* Broadcom */
        {"BCM0102", 0},         /* Broadcom */
        {"NSC1200", 0},         /* National */