Messages in this thread Patch in this message | | | Subject | [PATCH] tpm: check mem start and len | From | Kylene Jo Hall <> | Date | Wed, 12 Apr 2006 16:48:06 -0500 |
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The memory start and length values obtained from the ACPI entry need to be checked and filled in with the default values from the specification if they don't exist. This patch fills in the default values and uses them appropriately.
Signed-off-by: Kylie Hall <kjhall@us.ibm.com> --- drivers/char/tpm/tpm_tis.c | 7 +++++++ 1 files changed, 7 insertions(+)
--- linux-2.6.17-rc1-mm2/drivers/char/tpm/tpm_tis.c 2006-04-12 16:39:40.191345000 -0500 +++ linux-2.6.17-rc1/drivers/char/tpm/tpm_tis.c 2006-04-12 14:49:13.033173500 -0500 @@ -52,6 +52,8 @@ enum tis_int_flags { }; enum tis_defaults { + TIS_MEM_BASE = 0xFED4000, + TIS_MEM_LEN = 0x5000, TIS_SHORT_TIMEOUT = 750, /* ms */ TIS_LONG_TIMEOUT = 2000, /* 2 sec */ }; @@ -437,6 +439,11 @@ static int __devinit tpm_tis_pnp_init(st start = pnp_mem_start(pnp_dev, 0); len = pnp_mem_len(pnp_dev, 0); + if (!start) + start = TIS_MEM_BASE; + if (!len) + len = TIS_MEM_LEN; + if (!(chip = tpm_register_hardware(&pnp_dev->dev, &tpm_tis))) return -ENODEV;
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