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tpm/tpm_crb: open code the crb_init into acpi_add

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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.winkler@intel.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Tested-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
This commit is contained in:
Winkler, Tomas 2016-09-12 16:04:20 +03:00 committed by Jarkko Sakkinen
parent bc33c5df71
commit c58bd34cec
1 changed files with 10 additions and 16 deletions
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26
drivers/char/tpm/tpm_crb.c
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@ -262,21 +262,6 @@ static const struct tpm_class_ops tpm_crb = {
.req_complete_val = CRB_DRV_STS_COMPLETE, .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) static int crb_check_resource(struct acpi_resource *ares, void *data)
{ {
struct resource *io_res = data; struct resource *io_res = data;
@ -398,6 +383,7 @@ static int crb_acpi_add(struct acpi_device *device)
{ {
struct acpi_table_tpm2 *buf; struct acpi_table_tpm2 *buf;
struct crb_priv *priv; struct crb_priv *priv;
struct tpm_chip *chip;
struct device *dev = &device->dev; struct device *dev = &device->dev;
acpi_status status; acpi_status status;
u32 sm; u32 sm;
@ -435,11 +421,19 @@ static int crb_acpi_add(struct acpi_device *device)
if (rc) if (rc)
return 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); rc = crb_cmd_ready(dev, priv);
if (rc) if (rc)
return rc; return rc;
rc = crb_init(device, priv); rc = tpm_chip_register(chip);
if (rc) if (rc)
crb_go_idle(dev, priv); crb_go_idle(dev, priv);