tpm: fix suspend/resume paths for TPM 2.0

[cascardo/linux.git] / drivers / char / tpm / tpm_crb.c

diff --git a/drivers/char/tpm/tpm_crb.c b/drivers/char/tpm/tpm_crb.c
index c248a35..b26ceee 100644 (file)
--- a/drivers/char/tpm/tpm_crb.c
+++ b/drivers/char/tpm/tpm_crb.c
@@ -95,21 +95,7 @@ struct crb_priv {
        u8 __iomem *rsp;
 };
 
-#ifdef CONFIG_PM_SLEEP
-static int crb_resume(struct device *dev)
-{
-       int rc;
-       struct tpm_chip *chip = dev_get_drvdata(dev);
-
-       rc = tpm2_shutdown(chip, TPM2_SU_STATE);
-       if (!rc)
-               rc = tpm2_do_selftest(chip);
-
-       return rc;
-}
-
-static SIMPLE_DEV_PM_OPS(crb_pm, tpm_pm_suspend, crb_resume);
-#endif
+static SIMPLE_DEV_PM_OPS(crb_pm, tpm_pm_suspend, tpm_pm_resume);
 
 static u8 crb_status(struct tpm_chip *chip)
 {
@@ -326,6 +312,10 @@ static int crb_acpi_remove(struct acpi_device *device)
        struct tpm_chip *chip = dev_get_drvdata(dev);
 
        tpm_chip_unregister(chip);
+
+       if (chip->flags & TPM_CHIP_FLAG_TPM2)
+               tpm2_shutdown(chip, TPM2_SU_CLEAR);
+
        return 0;
 }