From e00e1f394c8cb7476fe6c1abce54674b75336b70 Mon Sep 17 00:00:00 2001 From: Patrick Delaunay Date: Mon, 28 Jun 2021 14:56:01 +0200 Subject: stm32mp: cmd_stm32key: add get_misc_dev function Add a helper function to access to BSEC misc driver. Signed-off-by: Patrick Delaunay Reviewed-by: Patrice Chotard --- arch/arm/mach-stm32mp/cmd_stm32key.c | 19 +++++++++++++------ 1 file changed, 13 insertions(+), 6 deletions(-) (limited to 'arch/arm/mach-stm32mp/cmd_stm32key.c') diff --git a/arch/arm/mach-stm32mp/cmd_stm32key.c b/arch/arm/mach-stm32mp/cmd_stm32key.c index c4cb6342fa..886c52794f 100644 --- a/arch/arm/mach-stm32mp/cmd_stm32key.c +++ b/arch/arm/mach-stm32mp/cmd_stm32key.c @@ -14,6 +14,17 @@ #define STM32_OTP_HASH_KEY_START 24 #define STM32_OTP_HASH_KEY_SIZE 8 +static int get_misc_dev(struct udevice **dev) +{ + int ret; + + ret = uclass_get_device_by_driver(UCLASS_MISC, DM_DRIVER_GET(stm32mp_bsec), dev); + if (ret) + log_err("Can't find stm32mp_bsec driver\n"); + + return ret; +} + static void read_hash_value(u32 addr) { int i; @@ -31,13 +42,9 @@ static int fuse_hash_value(u32 addr, bool print) u32 word, val; int i, ret; - ret = uclass_get_device_by_driver(UCLASS_MISC, - DM_DRIVER_GET(stm32mp_bsec), - &dev); - if (ret) { - log_err("Can't find stm32mp_bsec driver\n"); + ret = get_misc_dev(&dev); + if (ret) return ret; - } for (i = 0, word = STM32_OTP_HASH_KEY_START; i < STM32_OTP_HASH_KEY_SIZE; -- cgit v1.2.3