dm: tpm: Convert the TPM command and library to driver model
Add driver model support to the TPM command and the TPM library. Both
support only a single TPM at present.
Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Christophe Ricard<christophe-h.ricard@st.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
diff --git a/common/cmd_tpm.c b/common/cmd_tpm.c
index 0294952..bad2006 100644
--- a/common/cmd_tpm.c
+++ b/common/cmd_tpm.c
@@ -6,6 +6,7 @@
#include <common.h>
#include <command.h>
+#include <dm.h>
#include <malloc.h>
#include <tpm.h>
#include <asm/unaligned.h>
@@ -438,6 +439,21 @@
TPM_COMMAND_NO_ARG(tpm_physical_enable)
TPM_COMMAND_NO_ARG(tpm_physical_disable)
+#ifdef CONFIG_DM_TPM
+static int get_tpm(struct udevice **devp)
+{
+ int rc;
+
+ rc = uclass_first_device(UCLASS_TPM, devp);
+ if (rc) {
+ printf("Could not find TPM (ret=%d)\n", rc);
+ return CMD_RET_FAILURE;
+ }
+
+ return 0;
+}
+#endif
+
static int do_tpm_raw_transfer(cmd_tbl_t *cmdtp, int flag,
int argc, char * const argv[])
{
@@ -452,7 +468,17 @@
return CMD_RET_FAILURE;
}
+#ifdef CONFIG_DM_TPM
+ struct udevice *dev;
+
+ rc = get_tpm(&dev);
+ if (rc)
+ return rc;
+
+ rc = tpm_xfer(dev, command, count, response, &response_length);
+#else
rc = tis_sendrecv(command, count, response, &response_length);
+#endif
free(command);
if (!rc) {
puts("tpm response:\n");
