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authorLinus Torvalds <torvalds@linux-foundation.org>2015-04-15 20:08:27 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2015-04-15 20:08:27 +0200
commitd488d3a4ce08e96dad5cb3b6117517d57ccec98f (patch)
tree169b09c589e38f6d5f2ea0a9e25c6a9fb3ebf783 /drivers/char/tpm/tpm_infineon.c
parentMerge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 (diff)
parentlsm: copy comm before calling audit_log to avoid race in string printing (diff)
downloadlinux-d488d3a4ce08e96dad5cb3b6117517d57ccec98f.tar.xz
linux-d488d3a4ce08e96dad5cb3b6117517d57ccec98f.zip
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull security subsystem updates from James Morris: "Highlights for this window: - improved AVC hashing for SELinux by John Brooks and Stephen Smalley - addition of an unconfined label to Smack - Smack documentation update - TPM driver updates" * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (28 commits) lsm: copy comm before calling audit_log to avoid race in string printing tomoyo: Do not generate empty policy files tomoyo: Use if_changed when generating builtin-policy.h tomoyo: Use bin2c to generate builtin-policy.h selinux: increase avtab max buckets selinux: Use a better hash function for avtab selinux: convert avtab hash table to flex_array selinux: reconcile security_netlbl_secattr_to_sid() and mls_import_netlbl_cat() selinux: remove unnecessary pointer reassignment Smack: Updates for Smack documentation tpm/st33zp24/spi: Add missing device table for spi phy. tpm/st33zp24: Add proper wait for ordinal duration in case of irq mode smack: Fix gcc warning from unused smack_syslog_lock mutex in smackfs.c Smack: Allow an unconfined label in bringup mode Smack: getting the Smack security context of keys Smack: Assign smack_known_web as default smk_in label for kernel thread's socket tpm/tpm_infineon: Use struct dev_pm_ops for power management MAINTAINERS: Add Jason as designated reviewer for TPM tpm: Update KConfig text to include TPM2.0 FIFO chips tpm/st33zp24/dts/st33zp24-spi: Add dts documentation for st33zp24 spi phy ...
Diffstat (limited to 'drivers/char/tpm/tpm_infineon.c')
-rw-r--r--drivers/char/tpm/tpm_infineon.c34
1 files changed, 9 insertions, 25 deletions
diff --git a/drivers/char/tpm/tpm_infineon.c b/drivers/char/tpm/tpm_infineon.c
index 29ba520ac24d..6c488e635fdd 100644
--- a/drivers/char/tpm/tpm_infineon.c
+++ b/drivers/char/tpm/tpm_infineon.c
@@ -591,27 +591,8 @@ static void tpm_inf_pnp_remove(struct pnp_dev *dev)
}
}
-static int tpm_inf_pnp_suspend(struct pnp_dev *dev, pm_message_t pm_state)
-{
- struct tpm_chip *chip = pnp_get_drvdata(dev);
- int rc;
- if (chip) {
- u8 savestate[] = {
- 0, 193, /* TPM_TAG_RQU_COMMAND */
- 0, 0, 0, 10, /* blob length (in bytes) */
- 0, 0, 0, 152 /* TPM_ORD_SaveState */
- };
- dev_info(&dev->dev, "saving TPM state\n");
- rc = tpm_inf_send(chip, savestate, sizeof(savestate));
- if (rc < 0) {
- dev_err(&dev->dev, "error while saving TPM state\n");
- return rc;
- }
- }
- return 0;
-}
-
-static int tpm_inf_pnp_resume(struct pnp_dev *dev)
+#ifdef CONFIG_PM_SLEEP
+static int tpm_inf_resume(struct device *dev)
{
/* Re-configure TPM after suspending */
tpm_config_out(ENABLE_REGISTER_PAIR, TPM_INF_ADDR);
@@ -625,16 +606,19 @@ static int tpm_inf_pnp_resume(struct pnp_dev *dev)
tpm_config_out(DISABLE_REGISTER_PAIR, TPM_INF_ADDR);
/* disable RESET, LP and IRQC */
tpm_data_out(RESET_LP_IRQC_DISABLE, CMD);
- return tpm_pm_resume(&dev->dev);
+ return tpm_pm_resume(dev);
}
+#endif
+static SIMPLE_DEV_PM_OPS(tpm_inf_pm, tpm_pm_suspend, tpm_inf_resume);
static struct pnp_driver tpm_inf_pnp_driver = {
.name = "tpm_inf_pnp",
.id_table = tpm_inf_pnp_tbl,
.probe = tpm_inf_pnp_probe,
- .suspend = tpm_inf_pnp_suspend,
- .resume = tpm_inf_pnp_resume,
- .remove = tpm_inf_pnp_remove
+ .remove = tpm_inf_pnp_remove,
+ .driver = {
+ .pm = &tpm_inf_pm,
+ }
};
module_pnp_driver(tpm_inf_pnp_driver);