From: Jason Gunthorpe <jgunthorpe@xxxxxxxxxxxxxxxxxxxx>
The command flow is exactly the same, the core simply needs to probe
for TPM 2.0 capability.
Signed-off-by: Andrew Azmansky <andrew.zamansky@xxxxxxxxxxx>
Signed-off-by: Jason Gunthorpe <jgunthorpe@xxxxxxxxxxxxxxxxxxxx>
---
Documentation/devicetree/bindings/i2c/trivial-devices.txt | 1 +
drivers/char/tpm/tpm_i2c_nuvoton.c | 7 ++++---
2 files changed, 5 insertions(+), 3 deletions(-)
diff --git a/Documentation/devicetree/bindings/i2c/trivial-devices.txt b/Documentation/devicetree/bindings/i2c/trivial-devices.txt
index 53987449..d4f6542 100644
--- a/Documentation/devicetree/bindings/i2c/trivial-devices.txt
+++ b/Documentation/devicetree/bindings/i2c/trivial-devices.txt
@@ -62,6 +62,7 @@ national,lm80 Serial Interface ACPI-Compatible Microprocessor System Hardware M
national,lm85 Temperature sensor with integrated fan control
national,lm92 ±0.33°C Accurate, 12-Bit + Sign Temperature Sensor and Thermal Window Comparator with Two-Wire Interface
nuvoton,npct501 i2c trusted platform module (TPM)
+nuvoton,npct601 i2c trusted platform module (TPM2)
nxp,pca9556 Octal SMBus and I2C registered interface
nxp,pca9557 8-bit I2C-bus and SMBus I/O port with reset
nxp,pcf8563 Real-time clock/calendar
diff --git a/drivers/char/tpm/tpm_i2c_nuvoton.c b/drivers/char/tpm/tpm_i2c_nuvoton.c
index b64effc..dbf6095 100644
--- a/drivers/char/tpm/tpm_i2c_nuvoton.c
+++ b/drivers/char/tpm/tpm_i2c_nuvoton.c
@@ -1,5 +1,5 @@
/******************************************************************************
- * Nuvoton TPM I2C Device Driver Interface for WPCT301/NPCT501,
+ * Nuvoton TPM I2C Device Driver Interface for WPCT301/NPCT501/NPCT6XX,
* based on the TCG TPM Interface Spec version 1.2.
* Specifications at www.trustedcomputinggroup.org
*
@@ -163,7 +163,7 @@ static int i2c_nuvoton_get_burstcount(struct i2c_client *client,
}
/*
- * WPCT301/NPCT501 SINT# supports only dataAvail
+ * WPCT301/NPCT501/NPCT6XX SINT# supports only dataAvail
* any call to this function which is not waiting for dataAvail will
* set queue to NULL to avoid waiting for interrupt
*/
@@ -456,7 +456,7 @@ static bool i2c_nuvoton_req_canceled(struct tpm_chip *chip, u8 status)
}
static const struct tpm_class_ops tpm_i2c = {
- .flags = TPM_OPS_AUTO_STARTUP,
+ .flags = TPM_OPS_AUTO_STARTUP | TPM_OPS_PROBE_TPM2,
.status = i2c_nuvoton_read_status,
.recv = i2c_nuvoton_recv,
.send = i2c_nuvoton_send,
@@ -623,6 +623,7 @@ MODULE_DEVICE_TABLE(i2c, i2c_nuvoton_id);
static const struct of_device_id i2c_nuvoton_of_match[] = {
{.compatible = "nuvoton,npct501"},
{.compatible = "winbond,wpct301"},
+ {.compatible = "nuvoton,npct601"},
{},
};
MODULE_DEVICE_TABLE(of, i2c_nuvoton_of_match);
--
1.9.1
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
