Update Linux to v5.4.2
Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/arch/arm/mach-exynos/firmware.c b/arch/arm/mach-exynos/firmware.c
index be1f20f..2eaf2db 100644
--- a/arch/arm/mach-exynos/firmware.c
+++ b/arch/arm/mach-exynos/firmware.c
@@ -185,7 +185,7 @@
exynos_smc(SMC_CMD_L2X0SETUP2, regs->pwr_ctrl, regs->aux_ctrl, 0);
}
-void __init exynos_firmware_init(void)
+bool __init exynos_secure_firmware_available(void)
{
struct device_node *nd;
const __be32 *addr;
@@ -193,14 +193,23 @@
nd = of_find_compatible_node(NULL, NULL,
"samsung,secure-firmware");
if (!nd)
- return;
+ return false;
addr = of_get_address(nd, 0, NULL, NULL);
+ of_node_put(nd);
if (!addr) {
pr_err("%s: No address specified.\n", __func__);
- return;
+ return false;
}
+ return true;
+}
+
+void __init exynos_firmware_init(void)
+{
+ if (!exynos_secure_firmware_available())
+ return;
+
pr_info("Running under secure firmware.\n");
register_firmware_ops(&exynos_firmware_ops);