4 files changed, 58 insertions, 14 deletions

diff --git a/drivers/firmware/edd.c b/drivers/firmware/edd.c
index e22957665808..60a8f1363a10 100644
--- a/drivers/firmware/edd.c
+++ b/drivers/firmware/edd.c
@@ -669,10 +669,10 @@ edd_get_pci_dev(struct edd_device *edev)
 	struct edd_info *info = edd_dev_get_info(edev);
 
 	if (edd_dev_is_type(edev, "PCI") || edd_dev_is_type(edev, "XPRS")) {
-		return pci_get_bus_and_slot(info->params.interface_path.pci.bus,
-				     PCI_DEVFN(info->params.interface_path.pci.slot,
-					       info->params.interface_path.pci.
-					       function));
+		return pci_get_domain_bus_and_slot(0,
+				info->params.interface_path.pci.bus,
+				PCI_DEVFN(info->params.interface_path.pci.slot,
+				info->params.interface_path.pci.function));
 	}
 	return NULL;
 }
diff --git a/drivers/firmware/iscsi_ibft.c b/drivers/firmware/iscsi_ibft.c
index 14042a64bdd5..6bc8e6640d71 100644
--- a/drivers/firmware/iscsi_ibft.c
+++ b/drivers/firmware/iscsi_ibft.c
@@ -719,8 +719,9 @@ static int __init ibft_create_kobject(struct acpi_table_ibft *header,
 		* executes only devices which are in domain 0. Furthermore, the
 		* iBFT spec doesn't have a domain id field :-(
 		*/
-		pci_dev = pci_get_bus_and_slot((nic->pci_bdf & 0xff00) >> 8,
-					       (nic->pci_bdf & 0xff));
+		pci_dev = pci_get_domain_bus_and_slot(0,
+						(nic->pci_bdf & 0xff00) >> 8,
+						(nic->pci_bdf & 0xff));
 		if (pci_dev) {
 			rc = sysfs_create_link(&boot_kobj->kobj,
 					       &pci_dev->dev.kobj, "device");
diff --git a/drivers/firmware/psci.c b/drivers/firmware/psci.c
index 8b25d31e8401..c80ec1d03274 100644
--- a/drivers/firmware/psci.c
+++ b/drivers/firmware/psci.c
@@ -59,7 +59,10 @@ bool psci_tos_resident_on(int cpu)
 	return cpu == resident_cpu;
 }
 
-struct psci_operations psci_ops;
+struct psci_operations psci_ops = {
+	.conduit = PSCI_CONDUIT_NONE,
+	.smccc_version = SMCCC_VERSION_1_0,
+};
 
 typedef unsigned long (psci_fn)(unsigned long, unsigned long,
 				unsigned long, unsigned long);
@@ -210,6 +213,22 @@ static unsigned long psci_migrate_info_up_cpu(void)
 			      0, 0, 0);
 }
 
+static void set_conduit(enum psci_conduit conduit)
+{
+	switch (conduit) {
+	case PSCI_CONDUIT_HVC:
+		invoke_psci_fn = __invoke_psci_fn_hvc;
+		break;
+	case PSCI_CONDUIT_SMC:
+		invoke_psci_fn = __invoke_psci_fn_smc;
+		break;
+	default:
+		WARN(1, "Unexpected PSCI conduit %d\n", conduit);
+	}
+
+	psci_ops.conduit = conduit;
+}
+
 static int get_set_conduit_method(struct device_node *np)
 {
 	const char *method;
@@ -222,9 +241,9 @@ static int get_set_conduit_method(struct device_node *np)
 	}
 
 	if (!strcmp("hvc", method)) {
-		invoke_psci_fn = __invoke_psci_fn_hvc;
+		set_conduit(PSCI_CONDUIT_HVC);
 	} else if (!strcmp("smc", method)) {
-		invoke_psci_fn = __invoke_psci_fn_smc;
+		set_conduit(PSCI_CONDUIT_SMC);
 	} else {
 		pr_warn("invalid \"method\" property: %s\n", method);
 		return -EINVAL;
@@ -493,6 +512,31 @@ static void __init psci_init_migrate(void)
 	pr_info("Trusted OS resident on physical CPU 0x%lx\n", cpuid);
 }
 
+static void __init psci_init_smccc(void)
+{
+	u32 ver = ARM_SMCCC_VERSION_1_0;
+	int feature;
+
+	feature = psci_features(ARM_SMCCC_VERSION_FUNC_ID);
+
+	if (feature != PSCI_RET_NOT_SUPPORTED) {
+		u32 ret;
+		ret = invoke_psci_fn(ARM_SMCCC_VERSION_FUNC_ID, 0, 0, 0);
+		if (ret == ARM_SMCCC_VERSION_1_1) {
+			psci_ops.smccc_version = SMCCC_VERSION_1_1;
+			ver = ret;
+		}
+	}
+
+	/*
+	 * Conveniently, the SMCCC and PSCI versions are encoded the
+	 * same way. No, this isn't accidental.
+	 */
+	pr_info("SMC Calling Convention v%d.%d\n",
+		PSCI_VERSION_MAJOR(ver), PSCI_VERSION_MINOR(ver));
+
+}
+
 static void __init psci_0_2_set_functions(void)
 {
 	pr_info("Using standard PSCI v0.2 function IDs\n");
@@ -541,6 +585,7 @@ static int __init psci_probe(void)
 	psci_init_migrate();
 
 	if (PSCI_VERSION_MAJOR(ver) >= 1) {
+		psci_init_smccc();
 		psci_init_cpu_suspend();
 		psci_init_system_suspend();
 	}
@@ -654,9 +699,9 @@ int __init psci_acpi_init(void)
 	pr_info("probing for conduit method from ACPI.\n");
 
 	if (acpi_psci_use_hvc())
-		invoke_psci_fn = __invoke_psci_fn_hvc;
+		set_conduit(PSCI_CONDUIT_HVC);
 	else
-		invoke_psci_fn = __invoke_psci_fn_smc;
+		set_conduit(PSCI_CONDUIT_SMC);
 
 	return psci_probe();
 }
diff --git a/drivers/firmware/qemu_fw_cfg.c b/drivers/firmware/qemu_fw_cfg.c
index deb483064f53..a41b572eeeb1 100644
--- a/drivers/firmware/qemu_fw_cfg.c
+++ b/drivers/firmware/qemu_fw_cfg.c
@@ -694,10 +694,8 @@ static int fw_cfg_cmdline_set(const char *arg, const struct kernel_param *kp)
 	 */
 	fw_cfg_cmdline_dev = platform_device_register_simple("fw_cfg",
 					PLATFORM_DEVID_NONE, res, processed);
-	if (IS_ERR(fw_cfg_cmdline_dev))
-		return PTR_ERR(fw_cfg_cmdline_dev);
 
-	return 0;
+	return PTR_ERR_OR_ZERO(fw_cfg_cmdline_dev);
 }
 
 static int fw_cfg_cmdline_get(char *buf, const struct kernel_param *kp)