[PATCH 2/2] tee: add a stub for tee_find_device

[Patrick Delaunay]

Add stub for tee_find_device function when CONFIG_TEE is not activated
to simplify the caller code.

This patch allows to remove the CONFIG_IS_ENABLED(OPTEE) tests
for stm32 platform.

Signed-off-by: Patrick Delaunay <patrick.delaunay at foss.st.com>
---

 arch/arm/mach-stm32mp/fdt.c        |  1 -
 board/st/common/stm32mp_mtdparts.c |  3 +--
 include/tee.h                      | 11 +++++++++++
 3 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/arch/arm/mach-stm32mp/fdt.c b/arch/arm/mach-stm32mp/fdt.c
index a19e954cf7..91330a68a4 100644
--- a/arch/arm/mach-stm32mp/fdt.c
+++ b/arch/arm/mach-stm32mp/fdt.c
@@ -341,7 +341,6 @@ int ft_system_setup(void *blob, struct bd_info *bd)
 	 * when FIP is not used by TF-A
 	 */
 	if (CONFIG_IS_ENABLED(STM32MP15x_STM32IMAGE) &&
-	    CONFIG_IS_ENABLED(OPTEE) &&
 	    !tee_find_device(NULL, NULL, NULL, NULL))
 		stm32_fdt_disable_optee(blob);
 
diff --git a/board/st/common/stm32mp_mtdparts.c b/board/st/common/stm32mp_mtdparts.c
index 8b636d62fa..18878424c7 100644
--- a/board/st/common/stm32mp_mtdparts.c
+++ b/board/st/common/stm32mp_mtdparts.c
@@ -119,8 +119,7 @@ void board_mtdparts_default(const char **mtdids, const char **mtdparts)
 	}
 
 #ifdef CONFIG_STM32MP15x_STM32IMAGE
-	if (!serial && CONFIG_IS_ENABLED(OPTEE) &&
-	    tee_find_device(NULL, NULL, NULL, NULL))
+	if (!serial && tee_find_device(NULL, NULL, NULL, NULL))
 		tee = true;
 #endif
 
diff --git a/include/tee.h b/include/tee.h
index 2ef29bfc8f..44e9cd4321 100644
--- a/include/tee.h
+++ b/include/tee.h
@@ -307,11 +307,22 @@ bool tee_shm_is_registered(struct tee_shm *shm, struct udevice *dev);
  * Returns a probed TEE device of the first TEE device matched by the
  * match() callback or NULL.
  */
+#if CONFIG_IS_ENABLED(TEE)
 struct udevice *tee_find_device(struct udevice *start,
 				int (*match)(struct tee_version_data *vers,
 					     const void *data),
 				const void *data,
 				struct tee_version_data *vers);
+#else
+static inline struct udevice *tee_find_device(struct udevice *start,
+					      int (*match)(struct tee_version_data *vers,
+							   const void *data),
+					      const void *data,
+					      struct tee_version_data *vers)
+{
+	return NULL;
+}
+#endif
 
 /**
  * tee_get_version() - Query capabilities of TEE device
-- 
2.25.1