---

yaml --- r: 292280 b: refs/heads/master c: 4e401fb h: refs/heads/master v: v3
git-mirror · Feb 14, 2012 · 1fe4cc5 · 1fe4cc5
1 parent 5541e28
commit 1fe4cc5
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Showing 3 changed files with 8 additions and 4 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 4040153087478993cbf0809f444400a3c808074c
+refs/heads/master: 4e401fb028b79105ed87d85fc2220c77be277ed9
diff --git a/trunk/drivers/char/tpm/tpm.h b/trunk/drivers/char/tpm/tpm.h
@@ -99,6 +99,8 @@ struct tpm_vendor_specific {
 	wait_queue_head_t int_queue;
 };
 
+#define TPM_VID_INTEL    0x8086
+
 struct tpm_chip {
 	struct device *dev;	/* Device stuff */
 

diff --git a/trunk/drivers/char/tpm/tpm_tis.c b/trunk/drivers/char/tpm/tpm_tis.c
@@ -368,6 +368,11 @@ static int probe_itpm(struct tpm_chip *chip)
 	};
 	size_t len = sizeof(cmd_getticks);
 	int rem_itpm = itpm;
+	u16 vendor = ioread16(chip->vendor.iobase + TPM_DID_VID(0));
+
+	/* probe only iTPMS */
+	if (vendor != TPM_VID_INTEL)
+		return 0;
 
 	itpm = 0;
 
@@ -390,9 +395,6 @@ static int probe_itpm(struct tpm_chip *chip)
 out:
 	itpm = rem_itpm;
 	tpm_tis_ready(chip);
-	/* some TPMs need a break here otherwise they will not work
-	 * correctly on the immediately subsequent command */
-	msleep(chip->vendor.timeout_b);
 	release_locality(chip, chip->vendor.locality, 0);
 
 	return rc;