From: "Winkler, Tomas" <tomas.wink...@intel.com>
This is preparation step for implementing tpm crb
runtime pm. We need to have tpm chip allocated
and populated before we access the runtime handlers.
Signed-off-by: Tomas Winkler <tomas.wink...@intel.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakki...@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakki...@linux.intel.com>
---
V2: new in the series
V3: resend
V4: resend
drivers/char/tpm/tpm_crb.c | 26 ++++++++++----------------
1 file changed, 10 insertions(+), 16 deletions(-)
diff --git a/drivers/char/tpm/tpm_crb.c b/drivers/char/tpm/tpm_crb.c
index 4eb96b85c653..def50b7d47b2 100644
--- a/drivers/char/tpm/tpm_crb.c
+++ b/drivers/char/tpm/tpm_crb.c
@@ -266,21 +266,6 @@ static const struct tpm_class_ops tpm_crb = {
.req_complete_val = CRB_DRV_STS_COMPLETE,
};
-static int crb_init(struct acpi_device *device, struct crb_priv *priv)
-{
- struct tpm_chip *chip;
-
- chip = tpmm_chip_alloc(&device->dev, &tpm_crb);
- if (IS_ERR(chip))
- return PTR_ERR(chip);
-
- dev_set_drvdata(&chip->dev, priv);
- chip->acpi_dev_handle = device->handle;
- chip->flags = TPM_CHIP_FLAG_TPM2;
-
- return tpm_chip_register(chip);
-}
-
static int crb_check_resource(struct acpi_resource *ares, void *data)
{
struct resource *io_res = data;
@@ -402,6 +387,7 @@ static int crb_acpi_add(struct acpi_device *device)
{
struct acpi_table_tpm2 *buf;
struct crb_priv *priv;
+ struct tpm_chip *chip;
struct device *dev = &device->dev;
acpi_status status;
u32 sm;
@@ -439,11 +425,19 @@ static int crb_acpi_add(struct acpi_device *device)
if (rc)
return rc;
+ chip = tpmm_chip_alloc(dev, &tpm_crb);
+ if (IS_ERR(chip))
+ return PTR_ERR(chip);
+
+ dev_set_drvdata(&chip->dev, priv);
+ chip->acpi_dev_handle = device->handle;
+ chip->flags = TPM_CHIP_FLAG_TPM2;
+
rc = crb_cmd_ready(dev, priv);
if (rc)
return rc;
- rc = crb_init(device, priv);
+ rc = tpm_chip_register(chip);
if (rc)
crb_go_idle(dev, priv);
--
2.7.4
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