diff options
Diffstat (limited to 'drivers/firmware/smccc/soc_id.c')
| -rw-r--r-- | drivers/firmware/smccc/soc_id.c | 28 |
1 files changed, 5 insertions, 23 deletions
diff --git a/drivers/firmware/smccc/soc_id.c b/drivers/firmware/smccc/soc_id.c index dd7c3d5e8b0b..890eb454599a 100644 --- a/drivers/firmware/smccc/soc_id.c +++ b/drivers/firmware/smccc/soc_id.c @@ -42,41 +42,23 @@ static int __init smccc_soc_init(void) if (arm_smccc_get_version() < ARM_SMCCC_VERSION_1_2) return 0; - if (arm_smccc_1_1_get_conduit() == SMCCC_CONDUIT_NONE) { - pr_err("%s: invalid SMCCC conduit\n", __func__); - return -EOPNOTSUPP; - } - - arm_smccc_1_1_invoke(ARM_SMCCC_ARCH_FEATURES_FUNC_ID, - ARM_SMCCC_ARCH_SOC_ID, &res); - - if ((int)res.a0 == SMCCC_RET_NOT_SUPPORTED) { + soc_id_version = arm_smccc_get_soc_id_version(); + if (soc_id_version == SMCCC_RET_NOT_SUPPORTED) { pr_info("ARCH_SOC_ID not implemented, skipping ....\n"); return 0; } - if ((int)res.a0 < 0) { - pr_info("ARCH_FEATURES(ARCH_SOC_ID) returned error: %lx\n", - res.a0); - return -EINVAL; - } - - arm_smccc_1_1_invoke(ARM_SMCCC_ARCH_SOC_ID, 0, &res); - if ((int)res.a0 < 0) { + if (soc_id_version < 0) { pr_err("ARCH_SOC_ID(0) returned error: %lx\n", res.a0); return -EINVAL; } - soc_id_version = res.a0; - - arm_smccc_1_1_invoke(ARM_SMCCC_ARCH_SOC_ID, 1, &res); - if ((int)res.a0 < 0) { + soc_id_rev = arm_smccc_get_soc_id_revision(); + if (soc_id_rev < 0) { pr_err("ARCH_SOC_ID(1) returned error: %lx\n", res.a0); return -EINVAL; } - soc_id_rev = res.a0; - soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL); if (!soc_dev_attr) return -ENOMEM; |