(+cc: Andrea, Uwe) Stefan Berger wrote: > Can someone who experiences the delay during the boot please apply the > patch below? Please let me know whether it solves the problem.
Uwe, Andrea, instructions for building a patched kernel are at [1]. [1] http://kernel-handbook.alioth.debian.org/ch-common-tasks.html commit a927b8131794 Author: Stefan Berger <stef...@linux.vnet.ibm.com> Date: Fri Nov 11 12:57:06 2011 -0500 tpm_tis: add delay after aborting command This patch adds a delay after aborting a command. Some TPMs need this and will not process the subsequent command correctly otherwise. Signed-off-by: Stefan Berger <stef...@linux.vnet.ibm.com> diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c index 34832bc74649..d93bafde3120 100644 --- a/drivers/char/tpm/tpm_tis.c +++ b/drivers/char/tpm/tpm_tis.c @@ -432,6 +432,9 @@ 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; -- To UNSUBSCRIBE, email to debian-kernel-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20120111122333.GE32173@burratino
