dm: tpm: Drop CONFIG_DM_TPM

Now that all TPM drivers use driver model, we can drop the special driver
model CONFIG option.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Christophe Ricard<christophe-h.ricard@st.com>
diff --git a/drivers/tpm/Kconfig b/drivers/tpm/Kconfig
index 3ab652c..31b35f7 100644
--- a/drivers/tpm/Kconfig
+++ b/drivers/tpm/Kconfig
@@ -4,15 +4,6 @@
 
 menu "TPM support"
 
-config DM_TPM
-	bool "Enable driver model for Trusted Platform Module drivers"
-	depends on DM && TPM
-	help
-          Enable driver model for TPMs. The TIS interface (tis_open(),
-	  tis_sendrecv(), etc.) is then implemented by the TPM uclass. Note
-	  that even with driver model only a single TPM is currently
-	  supported, since the tpm library assumes this.
-
 config TPM_TIS_SANDBOX
 	bool "Enable sandbox TPM driver"
 	depends on SANDBOX
@@ -24,7 +15,7 @@
 
 config TPM_ATMEL_TWI
 	bool "Enable Atmel TWI TPM device driver"
-	depends on DM_TPM && DM_I2C
+	depends on TPM && DM_I2C
 	help
 	  This driver supports an Atmel TPM device connected on the I2C bus.
 	  The usual tpm operations and the 'tpm' command can be used to talk
@@ -33,7 +24,7 @@
 
 config TPM_TIS_INFINEON
 	bool "Enable support for Infineon SLB9635/45 TPMs on I2C"
-	depends on DM_TPM && DM_I2C
+	depends on TPM && DM_I2C
 	help
 	  This driver supports Infineon TPM devices connected on the I2C bus.
 	  The usual tpm operations and the 'tpm' command can be used to talk
@@ -57,7 +48,7 @@
 
 config TPM_TIS_LPC
 	bool "Enable support for Infineon SLB9635/45 TPMs on LPC"
-	depends on DM_TPM && X86
+	depends on TPM && X86
 	help
 	  This driver supports Infineon TPM devices connected on the I2C bus.
 	  The usual tpm operations and the 'tpm' command can be used to talk