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Fri, 03 Jun 2022 03:30:03 -0700 (PDT) From: Etienne Carriere To: u-boot@lists.denx.de Cc: Etienne Carriere , Sughosh Ganu , Patrick Delaunay Subject: [PATCH v2 3/3] drivers: rng: optee_rng: register to CONFIG_OPTEE_SERVICE_DISCOVERY Date: Fri, 3 Jun 2022 12:27:01 +0200 Message-Id: <20220603102701.2316720-3-etienne.carriere@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220603102701.2316720-1-etienne.carriere@linaro.org> References: <20220603102701.2316720-1-etienne.carriere@linaro.org> MIME-Version: 1.0 X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.39 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.103.5 at phobos.denx.de X-Virus-Status: Clean Changes optee_rng driver to register itself has a OP-TEE service so that a device is bound for the driver when OP-TEE enumerates the PTA RNG service. Cc: Sughosh Ganu Cc: Patrick Delaunay Signed-off-by: Etienne Carriere Reviewed-by: Patrick Delaunay --- No change since v1. --- drivers/rng/Kconfig | 1 + drivers/rng/optee_rng.c | 12 +++++++++++- 2 files changed, 12 insertions(+), 1 deletion(-) diff --git a/drivers/rng/Kconfig b/drivers/rng/Kconfig index c10f7d345b..14e95a6213 100644 --- a/drivers/rng/Kconfig +++ b/drivers/rng/Kconfig @@ -34,6 +34,7 @@ config RNG_MSM config RNG_OPTEE bool "OP-TEE based Random Number Generator support" depends on DM_RNG && OPTEE + default y if OPTEE_SERVICE_DISCOVERY help This driver provides support for the OP-TEE based Random Number Generator on ARM SoCs where hardware entropy sources are not diff --git a/drivers/rng/optee_rng.c b/drivers/rng/optee_rng.c index aa8ce864d3..90d9434395 100644 --- a/drivers/rng/optee_rng.c +++ b/drivers/rng/optee_rng.c @@ -11,6 +11,9 @@ #include #include #include +#include + +#define DRIVER_NAME "optee-rng" #define TEE_ERROR_HEALTH_TEST_FAIL 0x00000001 @@ -35,6 +38,13 @@ #define TA_HWRNG_UUID { 0xab7a617c, 0xb8e7, 0x4d8f, \ { 0x83, 0x01, 0xd0, 0x9b, 0x61, 0x03, 0x6b, 0x64 } } +#ifdef CONFIG_OPTEE_SERVICE_DISCOVERY +OPTEE_SERVICE_DRIVER(optee_rng) = { + .uuid = TA_HWRNG_UUID, + .driver_name = DRIVER_NAME, +}; +#endif + /** open_session_ta_hwrng() - Open session with hwrng Trusted App * * @dev: device @@ -177,7 +187,7 @@ static const struct dm_rng_ops optee_rng_ops = { }; U_BOOT_DRIVER(optee_rng) = { - .name = "optee-rng", + .name = DRIVER_NAME, .id = UCLASS_RNG, .ops = &optee_rng_ops, .probe = optee_rng_probe,