drivers: entropy: Add support for TRNG to entropy driver

Danh Doan · kartben · commit 9792abb692ce · 2024-12-23T13:24:13.000+01:00
add support TRNG to entropy driver for Renesas RA

Signed-off-by: Danh Doan &lt;danh.doan.ue@bp.renesas.com&gt;
diff --git a/drivers/entropy/Kconfig.renesas_ra b/drivers/entropy/Kconfig.renesas_ra
@@ -7,7 +7,7 @@ config ENTROPY_RENESAS_RA
 	bool "Renesas RA TRNG driver"
 	default y
 	depends on DT_HAS_RENESAS_RA_RSIP_E51A_TRNG_ENABLED || DT_HAS_RENESAS_RA_SCE7_RNG_ENABLED \
-		|| DT_HAS_RENESAS_RA_SCE5_RNG_ENABLED
+		|| DT_HAS_RENESAS_RA_SCE5_RNG_ENABLED || DT_HAS_RENESAS_RA_TRNG_ENABLED
 	select ENTROPY_HAS_DRIVER
 	select USE_RA_FSP_SCE
 	help
diff --git a/drivers/entropy/entropy_renesas_ra.c b/drivers/entropy/entropy_renesas_ra.c
@@ -50,3 +50,4 @@ static int entropy_renesas_ra_init(const struct device *dev)
 DT_FOREACH_STATUS_OKAY(renesas_ra_rsip_e51a_trng, RENESAS_RA_ENTROPY_INIT)
 DT_FOREACH_STATUS_OKAY(renesas_ra_sce5_rng, RENESAS_RA_ENTROPY_INIT)
 DT_FOREACH_STATUS_OKAY(renesas_ra_sce7_rng, RENESAS_RA_ENTROPY_INIT)
+DT_FOREACH_STATUS_OKAY(renesas_ra_trng, RENESAS_RA_ENTROPY_INIT)
diff --git a/dts/bindings/rng/renesas,ra-trng.yaml b/dts/bindings/rng/renesas,ra-trng.yaml
@@ -0,0 +1,8 @@
+# Copyright (c) 2024 Renesas Electronics Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+description: Renesas RA TRNG
+
+compatible: "renesas,ra-trng"
+
+include: base.yaml
diff --git a/modules/Kconfig.renesas_fsp b/modules/Kconfig.renesas_fsp
@@ -73,6 +73,13 @@ config HAS_RENESAS_RA_SCE5
 	help
 	  Includes SCE5 implementation for SCE driver
 
+config HAS_RENESAS_RA_TRNG
+	bool
+	default y
+	depends on DT_HAS_RENESAS_RA_TRNG_ENABLED
+	help
+	  Includes TRNG implementation for SCE driver
+
 endif
 
 config USE_RA_FSP_SPI_B
